From c20c1dafee567c0555b6c635b06694c5b93d8ac4 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 13 Jul 2026 11:43:16 +0100
Subject: [PATCH 01/38] Added gromacs and exaalt tests

---
 tests/apps/gromacs/gmx_1400k_atoms.py | 11 +++++----
 tests/apps/lammps/exaalt.py           | 34 ++++++++++++++++-----------
 2 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index ccad2041..2da37c33 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -22,6 +22,7 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
             "archer2-tds:compute": 128,
             "cirrus:compute": 36,
             "cirrus:compute-gpu": 40,
+            "cirrus-ex:compute": 288,
         },
     )
 
@@ -47,12 +48,12 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
 class GromacsCPUCheck(Gromacs1400kAtomsBase):
     """Gromacs CPU checks"""
 
-    valid_systems = ["archer2:compute", "cirrus:compute"]
+    valid_systems = ["archer2:compute", "cirrus:compute","cirrus-ex:compute"]
     modules = ["gromacs"]
     descr = Gromacs1400kAtomsBase.descr + " -- CPU"
 
     n_nodes = 4
-    num_tasks = 128
+    
     num_cpus_per_task = 1
     env_vars = {"OMP_NUM_THREADS": str(num_cpus_per_task)}
     reference["archer2:compute"] = {}
@@ -62,11 +63,13 @@ class GromacsCPUCheck(Gromacs1400kAtomsBase):
     reference["archer2:compute"]["performance"] = (24.0, -0.1, None, "ns/day")
     reference["archer2-tds:compute"]["performance"] = (22.4, -0.1, None, "ns/day")
     reference["cirrus:compute"]["performance"] = (5.50, -0.1, None, "ns/day")
+    tags = {"applications", "performance", "small"}
+    
 
     @run_before("run")
     def setup_resources(self):
         """sets up number of tasks"""
-        self.num_tasks_per_node = self.cores.get(self.current_partition.fullname, 1)
+        self.num_tasks_per_node = self.current_partition.processor.num_cpus
         self.num_tasks = self.n_nodes * self.num_tasks_per_node
 
 
@@ -91,7 +94,7 @@ class GromacsGPUCheck(Gromacs1400kAtomsBase):
     num_cpus_per_tasks = None
     reference["cirrus:compute-gpu"] = {}
     reference["cirrus:compute-gpu"]["performance"] = (11.5, -0.05, None, "ns/day")
-
+    
     @run_after("setup")
     def setup_gpu_options(self):
         """sets up different resources for gpu systems"""
diff --git a/tests/apps/lammps/exaalt.py b/tests/apps/lammps/exaalt.py
index cb80c92f..c997ee38 100644
--- a/tests/apps/lammps/exaalt.py
+++ b/tests/apps/lammps/exaalt.py
@@ -7,19 +7,17 @@
 
 from lammps_base import BuildLAMMPS, LAMMPSBase
 
-
 class LAMMPSBaseExaalt(LAMMPSBase):
     """ReFrame LAMMPS Base class for Exaalt tests"""
-
-    valid_systems = ["archer2:compute"]
-    stream_binary = fixture(BuildLAMMPS, scope="environment")
+    
     num_cpus_per_task = 1
     env_vars = {"OMP_NUM_THREADS": str(num_cpus_per_task)}
-
+    modules = ["lammps"]
     cores = variable(
         dict,
         value={
             "archer2:compute": 128,
+            "cirrus-ex:compute" : 288
         },
     )
 
@@ -28,8 +26,12 @@ class LAMMPSBaseExaalt(LAMMPSBase):
             "energy": (-8.7467248, -0.001, 0.001, "kJ/mol"),
             "performance": (0.007, -0.1, None, "ns/day"),
         },
+        "cirrus-ex:compute": {
+            "performance": (0.055, -0.15, None, "ns/day"),
+        },
     }
 
+
     @run_after("init")
     def setup_nnodes(self):
         """sets up number of nodes"""
@@ -39,7 +41,7 @@ def setup_nnodes(self):
     @run_after("setup")
     def set_executable(self):
         """sets up executable"""
-        self.executable = os.path.join(self.stream_binary.build_system.builddir, "lmp")
+        self.executable = "lmp"
 
     @run_before("run")
     def setup_resources(self):
@@ -61,24 +63,28 @@ def extract_energy(self):
 @rfm.simple_test
 class LAMMPSExaaltSmall(LAMMPSBaseExaalt):
     """ReFrame LAMMPS small test based on NERSC-10 Exaalt benchmark"""
-
+    
+    valid_systems = ["archer2:compute","cirrus-ex:compute"]
     descr = "Small performance test using NERSC-10 Exaalt LAMMPS benchmark reference run"
-    tags = {"applications", "performance"}
+    tags = {"applications", "performance","small"}
     executable_opts = [
         "-in in.snap.test",
         "-var snapdir 2J8_W.SNAP",
-        "-var nx 256",
-        "-var ny 256",
-        "-var nz 256",
-        "-var nsteps 100",
+        "-var nx 128",
+        "-var ny 128",
+        "-var nz 128",
+        "-var nsteps 200",
     ]
 
-    n_nodes = 16
+    
+    n_nodes = 4
     time_limit = "30m"
 
-
 @rfm.simple_test
 class LAMMPSExaaltRef(LAMMPSBaseExaalt):
+    
+    valid_systems = ["archer2:compute"]
+    
     """ReFrame LAMMPS largescale test based on NERSC-10 Exaalt benchmark"""
 
     descr = "Largescale performance test using NERSC-10 Exaalt LAMMPS benchmark reference run"

From 3d440051a43374651f1485a8a6133afe040034ef Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 13 Jul 2026 16:40:42 +0100
Subject: [PATCH 02/38] Added openfoam benchmark

---
 tests/apps/openfoam/openfoam_org_cavity3d.py  |  63 ++++++++
 tests/apps/openfoam/src/cavity_3d/0/U         |  41 +++++
 tests/apps/openfoam/src/cavity_3d/0/p         |  40 +++++
 tests/apps/openfoam/src/cavity_3d/README.md   | 142 ++++++++++++++++++
 .../src/cavity_3d/constant/physicalProperties |  20 +++
 .../src/cavity_3d/system/PDRblockMeshDict     |  56 +++++++
 .../src/cavity_3d/system/blockMeshDict        |  65 ++++++++
 .../openfoam/src/cavity_3d/system/controlDict |  48 ++++++
 .../src/cavity_3d/system/decomposeParDict0128 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict0256 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict0288 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict0576 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict1152 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict2304 |  27 ++++
 .../src/cavity_3d/system/decomposeParDict4608 |  27 ++++
 .../openfoam/src/cavity_3d/system/fvSchemes   |  50 ++++++
 .../openfoam/src/cavity_3d/system/fvSolution  |  51 +++++++
 17 files changed, 765 insertions(+)
 create mode 100644 tests/apps/openfoam/openfoam_org_cavity3d.py
 create mode 100644 tests/apps/openfoam/src/cavity_3d/0/U
 create mode 100644 tests/apps/openfoam/src/cavity_3d/0/p
 create mode 100644 tests/apps/openfoam/src/cavity_3d/README.md
 create mode 100644 tests/apps/openfoam/src/cavity_3d/constant/physicalProperties
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/PDRblockMeshDict
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/blockMeshDict
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/controlDict
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0128
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0256
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0288
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0576
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict1152
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict2304
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/decomposeParDict4608
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/fvSchemes
 create mode 100644 tests/apps/openfoam/src/cavity_3d/system/fvSolution

diff --git a/tests/apps/openfoam/openfoam_org_cavity3d.py b/tests/apps/openfoam/openfoam_org_cavity3d.py
new file mode 100644
index 00000000..82af928c
--- /dev/null
+++ b/tests/apps/openfoam/openfoam_org_cavity3d.py
@@ -0,0 +1,63 @@
+"""ReFrame test for OpenFOAM 3D lid-driven cavity."""
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+
+from openfoam_org_base import OpenFOAMBase
+
+
+class OpenFOAMCavity3DBase(OpenFOAMBase):
+    """OpenFOAM 3D lid-driven cavity base test."""
+
+    valid_systems = ["cirrus-ex:compute"]
+    
+    num_cpus_per_task = 1
+    time_limit = "20m"
+
+    @run_before("run")
+    def setup_tasks(self):
+        self.num_tasks_per_node = self.current_partition.processor.num_cpus
+        self.num_tasks = self.num_nodes * self.num_tasks_per_node
+
+    @sanity_function
+    def assert_finished(self):
+        """Check that the solver completed successfully."""
+        return sn.all([sn.assert_found("End", self.stdout), sn.assert_found("Finalising parallel run", self.stdout)])
+
+    @performance_function("seconds", perf_key="performance")
+    def extract_perf(self):
+        """Extract the final execution time from the solver output."""
+        return sn.extractsingle(
+            r"ExecutionTime\s+=\s+(?P<time>\d+\.\d+)\s+s\s+ClockTime\s+=\s+\d+\s+s\n\nEnd",
+            self.stdout,
+            "time",
+            float,
+        )
+
+    @run_before("run")
+    def setup_testcase(self):
+        """Prepare to run OpenFoam in parallel, by performance the mesh decomposition and partitioning."""
+        
+        self.prerun_cmds = [
+            "cd cavity_3d",
+            "blockMesh",
+            f"cp system/decomposeParDict{self.num_tasks:04.0f}  system/decomposeParDict",
+            "decomposePar -force -fileHandler collated"
+        ]
+
+    modules = ["openfoam-org"]
+
+    @run_before("performance")
+    def set_reference(self):
+        """Set the reference performance for Cirrus."""
+        self.reference["cirrus-ex:compute:performance"] = self.reference_performance_cirrus_ex
+
+@rfm.simple_test
+class OpenFOAMCavity3D4Node(OpenFOAMCavity3DBase):
+    """OpenFOAM 3D lid-driven cavity test on four nodes."""
+    
+    num_nodes = 4
+    executable = "icoFoam"
+    executable_opts = ["-parallel", "-fileHandler", "collated"]
+
+    reference_performance_cirrus_ex = (81.8, -0.02, 0.02, "seconds")
\ No newline at end of file
diff --git a/tests/apps/openfoam/src/cavity_3d/0/U b/tests/apps/openfoam/src/cavity_3d/0/U
new file mode 100644
index 00000000..b231f451
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/0/U
@@ -0,0 +1,41 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volVectorField;
+    object      U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -1 0 0 0 0];
+
+internalField   uniform (0 0 0);
+
+boundaryField
+{
+    movingWall
+    {
+        type            fixedValue;
+        value           uniform (1 0 0);
+    }
+
+    fixedWalls
+    {
+        type            noSlip;
+    }
+
+    frontAndBack
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/0/p b/tests/apps/openfoam/src/cavity_3d/0/p
new file mode 100644
index 00000000..70197444
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/0/p
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -2 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    movingWall
+    {
+        type            zeroGradient;
+    }
+
+    fixedWalls
+    {
+        type            zeroGradient;
+    }
+
+    frontAndBack
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/README.md b/tests/apps/openfoam/src/cavity_3d/README.md
new file mode 100644
index 00000000..24be13e5
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/README.md
@@ -0,0 +1,142 @@
+# OpenFOAM benchmark
+
+The problem is three dimensional lid-driven cavity flow following, e.g.,
+
+https://www.openfoam.com/documentation/tutorial-guide/2-incompressible-flow/2.1-lid-driven-cavity-flow
+
+The following subdirectories should be present
+
+drwxr-sr-x 2 kevin z19 4096 Aug 28 10:06  0
+drwxr-sr-x 2 kevin z19 4096 Aug 28 10:08  constant
+drwxr-sr-x 2 kevin z19 4096 Aug 28 10:10  system
+
+We will assume we are running on CIRRUS with the default openfoam/org
+module:
+
+$ module load PrgEnv-gnu
+$ module load openfoam-org
+
+The (two-dimensional) lid-driven cavity flow tutorial should be found in
+
+${FOAM_TUTORIALS}/incompressible/icoFoam/cavity/cavity
+
+
+## System
+
+A system of uniform resolution (288x288x288) is described in:
+
+system/blockMeshDist
+
+blocks
+(
+    hex (0 1 2 3 4 5 6 7) (288 288 288) simpleGrading (1 1 1)
+);
+
+The system has unit length, so the resolution is determined by the
+number of points in each dimension. Corresponding extents appear in
+the x, y, and z sections of
+
+system/PDRblockMeshDist
+
+If a different resolution is required, both files should be updated.
+
+The system size 288x288x288 has been used in an attempt to saturate
+single node performance (128 MPI processors). This should provide
+scope for some degree of strong scaling to larger numbers of nodes.
+There are also a prime factorisation involving 32x3x3 which allows
+for decompositions where the number of MPI processes per node want
+those factors.
+
+
+### BlockMesh
+
+The mesh is generated from blockMeshDict by running blockMesh. This
+needs to be done exactly once.
+
+$ blockMesh
+
+Results are stored in
+
+constant/polyMesh
+
+The details do not depend on the parallel decomposition, and the mesh may
+be re-used as long as the resolution or geometry do not change.
+
+
+### Parallel decomposition
+
+For any given number of MPI processes, a decomposition is required.
+A series of files with names of the form
+
+system/decomposeParDict0288
+
+are provided for 288 and 576 processes. A decomposition may be
+generated via
+
+$ decomposePar -force -fileHandler collated \
+               -decomposeParDict system/decomposeParDict0288
+
+where the required decomposition has been specified on the command line.
+The results of the decomposition will appear in a directory:
+
+processors288
+
+This is appropriate for 288 MPI processes (1 node). If a new decomposition
+is required, the existing decomposition directory must be removed
+(or renamed).
+
+The decomposition process is serial, and can present a significant serial
+overhead at large process count if repeated runs are required. It is
+therefore efficient if the decomposition can be run only once.
+
+
+## Control
+
+Various run time parameters are provided in 
+
+system/controlDict
+
+The length of the run is controlled by
+
+startTime       0;
+endTime         0.0025;
+
+This length of simulation has been selected so that the computation
+takes around 10 minutes on one node.
+
+The time step is choosen so that the Courant number remains under control
+at the resolution selected for the relevant lid speed:
+
+deltaT          0.000025;
+
+This gives 600 iterations to reach the end time.
+
+If the resolution is changed, some experimentation may be required to
+arrive at a new time step which keeps the Courant number under control.
+
+
+## Run time
+
+At run time a
+
+system/decomposeParDict
+
+file must be present and consistent with the current decomposition. A
+copy ot link to one of the existing files is therefore required.
+
+The icoFoam solver is invoked by, e.g.,
+
+srun icoFoam -fileHandler collated
+
+and the log will appear in stdout as expected.
+
+
+The Courant number at the final time should be in the region of:
+
+Time = 0.0025
+
+Courant Number mean: 0.007157 max: 0.07028
+
+(to four significant figures). The exact figure appearing in the output
+is decomposition dependent.
+
diff --git a/tests/apps/openfoam/src/cavity_3d/constant/physicalProperties b/tests/apps/openfoam/src/cavity_3d/constant/physicalProperties
new file mode 100644
index 00000000..75f257ba
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/constant/physicalProperties
@@ -0,0 +1,20 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      transportProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+nu              0.01;
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/PDRblockMeshDict b/tests/apps/openfoam/src/cavity_3d/system/PDRblockMeshDict
new file mode 100644
index 00000000..923946c0
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/PDRblockMeshDict
@@ -0,0 +1,56 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      PDRblockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale   0.1;
+
+x
+{
+    points  (0 1);
+    nCells  (288);
+    ratios  (1);
+}
+
+y
+{
+    points  (0 1);
+    nCells  (288);
+    ratios  (1);
+}
+
+z
+{
+    points  (0 1);
+    nCells  (288);
+    ratios  (1);
+}
+
+
+boundary
+(
+    movingWall
+    {
+        type  wall;
+        faces (3);
+    }
+    fixedWalls
+    {
+        type  wall;
+        faces (0 1 2 4 5);
+    }
+);
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/blockMeshDict b/tests/apps/openfoam/src/cavity_3d/system/blockMeshDict
new file mode 100644
index 00000000..f20c1a83
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/blockMeshDict
@@ -0,0 +1,65 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale   0.1;
+
+vertices
+(
+    (0 0 0)
+    (1 0 0)
+    (1 1 0)
+    (0 1 0)
+    (0 0 1)
+    (1 0 1)
+    (1 1 1)
+    (0 1 1)
+);
+
+blocks
+(
+    hex (0 1 2 3 4 5 6 7) (288 288 288) simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+boundary
+(
+    movingWall
+    {
+        type wall;
+        faces
+        (
+            (3 7 6 2)
+        );
+    }
+    fixedWalls
+    {
+        type wall;
+        faces
+        (
+            (0 4 7 3)
+            (2 6 5 1)
+            (1 5 4 0)
+            (0 3 2 1)
+            (4 5 6 7)
+        );
+    }
+);
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/controlDict b/tests/apps/openfoam/src/cavity_3d/system/controlDict
new file mode 100644
index 00000000..8a331a20
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/controlDict
@@ -0,0 +1,48 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+application     icoFoam;
+
+startFrom       startTime;
+
+startTime       0;
+
+stopAt          endTime;
+
+endTime         0.0025;
+
+deltaT          0.000025;
+
+writeControl    runTime;
+
+writeInterval   0.015;
+
+purgeWrite      0;
+
+writeFormat     binary;
+
+writePrecision  6;
+
+writeCompression off;
+
+timeFormat      general;
+
+timePrecision   6;
+
+runTimeModifiable false;
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0128 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0128
new file mode 100644
index 00000000..31b32806
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0128
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  128;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (8 4 4);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0256 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0256
new file mode 100644
index 00000000..6be84d17
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0256
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  256;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (16 4 4);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0288 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0288
new file mode 100644
index 00000000..f9dc28b1
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0288
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  288;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (8 6 6);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0576 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0576
new file mode 100644
index 00000000..e829533d
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict0576
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  576;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (16 6 6);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict1152 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict1152
new file mode 100644
index 00000000..22e57d58
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict1152
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  1152;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (32 6 6);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict2304 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict2304
new file mode 100644
index 00000000..1a0bb629
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict2304
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  2304;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (64 6 6);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict4608 b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict4608
new file mode 100644
index 00000000..bfbdef7d
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/decomposeParDict4608
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  1152;
+
+method  simple;
+
+simpleCoeffs
+{
+    n   (128 6 6);
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/fvSchemes b/tests/apps/openfoam/src/cavity_3d/system/fvSchemes
new file mode 100644
index 00000000..1697f551
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/fvSchemes
@@ -0,0 +1,50 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+    default         Euler;
+}
+
+gradSchemes
+{
+    default         Gauss linear;
+    grad(p)         Gauss linear;
+}
+
+divSchemes
+{
+    default         none;
+    div(phi,U)      Gauss linear;
+}
+
+laplacianSchemes
+{
+    default         Gauss linear orthogonal;
+}
+
+interpolationSchemes
+{
+    default         linear;
+}
+
+snGradSchemes
+{
+    default         orthogonal;
+}
+
+
+// ************************************************************************* //
diff --git a/tests/apps/openfoam/src/cavity_3d/system/fvSolution b/tests/apps/openfoam/src/cavity_3d/system/fvSolution
new file mode 100644
index 00000000..d8fa2b5f
--- /dev/null
+++ b/tests/apps/openfoam/src/cavity_3d/system/fvSolution
@@ -0,0 +1,51 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2212                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+    p
+    {
+        solver          PCG;
+        preconditioner  DIC;
+        tolerance       1e-06;
+        relTol          0.05;
+    }
+
+    pFinal
+    {
+        $p;
+        relTol          0;
+    }
+
+    U
+    {
+        solver          smoothSolver;
+        smoother        symGaussSeidel;
+        tolerance       1e-05;
+        relTol          0;
+    }
+}
+
+PISO
+{
+    nCorrectors     2;
+    nNonOrthogonalCorrectors 0;
+    pRefCell        0;
+    pRefValue       0;
+}
+
+
+// ************************************************************************* //

From 3cb66a4ef1c1c667356936395278c272458bf492 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 13 Jul 2026 17:53:55 +0100
Subject: [PATCH 03/38] Added vasp package

---
 tests/apps/vasp/vasp.py | 76 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 tests/apps/vasp/vasp.py

diff --git a/tests/apps/vasp/vasp.py b/tests/apps/vasp/vasp.py
new file mode 100644
index 00000000..6d0c0913
--- /dev/null
+++ b/tests/apps/vasp/vasp.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+"""ReFrame test for VASP CdTe benchmark."""
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+
+
+VASP_BENCHMARK_DIR = "/work/z19/z19/lparisi/2026-06_NCR-expansion-9Jul2026/VASP/CdTe/6.5.1_GCC13_LibSci-OFI"
+
+
+@rfm.simple_test
+class VASPCdTeCheck(rfm.RunOnlyRegressionTest):
+	"""VASP CdTe correctness and performance check."""
+
+	descr = "VASP CdTe benchmark run"
+	valid_systems = ["cirrus-ex:compute"]
+	valid_prog_environs = ["PrgEnv-gnu"]
+	modules = ["vasp/6/6.5.1"]
+
+	executable = "vasp_ncl"
+
+	num_nodes = 4
+	num_tasks_per_node = 144
+	num_cpus_per_task = 2
+	num_tasks = num_nodes * num_tasks_per_node
+	time_limit = "20m"
+
+	use_multithreading = False
+	tags = {"applications", "performance","small"}
+	keep_files = ["OUTCAR", "INCAR"]
+	
+	env_vars = {
+		"OMP_NUM_THREADS": "1",
+		"OMP_PLACES": "cores",
+		"SRUN_CPUS_PER_TASK": str(num_cpus_per_task),
+	}
+
+	reference = {
+		"cirrus-ex:compute": {
+			"energy": (-190.96017678, -0.01, 0.01, "eV"),
+			"performance": (651.0, -0.10, 0.10, "seconds"),
+		}
+	}
+
+	@run_before("run")
+	def setup_case(self):
+		"""Prepare the VASP input files and INCAR settings."""
+		self.job.launcher.options = ["--hint=nomultithread", "--distribution=block:block"]
+		self.prerun_cmds = [
+			"cd CdTe",
+			"mv INCAR.base INCAR",
+			"echo 'NCORE=4' >> INCAR",
+			"echo 'KPAR=2' >> INCAR",
+		]
+
+	@sanity_function
+	def assert_finished(self):
+		"""Sanity check that VASP completed and printed timing."""
+		return sn.all(
+			[
+				sn.assert_found(r"General timing and accounting informations for this job:", "CdTe/OUTCAR"),
+				sn.assert_found(r"Elapsed time \(sec\):", "CdTe/OUTCAR"),
+			]
+		)
+
+	@performance_function("eV", perf_key="energy")
+	def extract_energy(self):
+		"""Extract the final free energy from OUTCAR."""
+		return sn.extractsingle(
+			r"free\s+energy\s+TOTEN\s+=\s+(?P<energy>\S+)\s+eV", "CdTe/OUTCAR", "energy", float, item=-1
+		)
+
+	@performance_function("seconds", perf_key="performance")
+	def extract_perf(self):
+		"""Extract elapsed runtime from OUTCAR."""
+		return sn.extractsingle(r"Elapsed time \(sec\):\s+(?P<runtime>\S+)", "CdTe/OUTCAR", "runtime", float)

From 46ac155cfd2ec09e554ed481e263da7b899f31d7 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 14 Jul 2026 08:37:07 +0100
Subject: [PATCH 04/38] Added input files for the vasp CdTe benchmark

---
 tests/apps/vasp/src/CdTe/INCAR.base | 30 ++++++++++++
 tests/apps/vasp/src/CdTe/KPOINTS    |  5 ++
 tests/apps/vasp/src/CdTe/POSCAR     | 73 +++++++++++++++++++++++++++++
 tests/apps/vasp/vasp.py             |  3 +-
 4 files changed, 110 insertions(+), 1 deletion(-)
 create mode 100644 tests/apps/vasp/src/CdTe/INCAR.base
 create mode 100644 tests/apps/vasp/src/CdTe/KPOINTS
 create mode 100644 tests/apps/vasp/src/CdTe/POSCAR

diff --git a/tests/apps/vasp/src/CdTe/INCAR.base b/tests/apps/vasp/src/CdTe/INCAR.base
new file mode 100644
index 00000000..8b4bf62b
--- /dev/null
+++ b/tests/apps/vasp/src/CdTe/INCAR.base
@@ -0,0 +1,30 @@
+SYSTEM = CdTe
+
+ISTART = 0 ; ICHARG = 2
+
+LWAVE = .FALSE. ; LCHARG = .FALSE.
+
+NCSHMEM = 1
+NBLOCK_FOCK = 8
+
+LSCAAWARE = .TRUE.
+
+NELMDL = 5 ; NELM = 7
+
+ALGO = All
+ISIF = 2
+
+LHFCALC = .TRUE. ; AEXX = 0.25 ; HFSCREEN = 0.2
+
+NBANDS = 640
+ENCUT = 450
+PREC = Accurate
+PRECFOCK = Fast
+LASPH = .TRUE.
+LREAL = .FALSE.
+
+ISMEAR = 0 ; SIGMA = 0.05
+
+LNONCOLLINEAR = .TRUE.
+MAGMOM = 195*0
+
diff --git a/tests/apps/vasp/src/CdTe/KPOINTS b/tests/apps/vasp/src/CdTe/KPOINTS
new file mode 100644
index 00000000..9596c982
--- /dev/null
+++ b/tests/apps/vasp/src/CdTe/KPOINTS
@@ -0,0 +1,5 @@
+2x2x2 Gamma
+ 0
+Monkhorst
+2 2 2
+0 0 0
diff --git a/tests/apps/vasp/src/CdTe/POSCAR b/tests/apps/vasp/src/CdTe/POSCAR
new file mode 100644
index 00000000..30954a45
--- /dev/null
+++ b/tests/apps/vasp/src/CdTe/POSCAR
@@ -0,0 +1,73 @@
+Cd33 Te32
+1.0
+13.086768 0.000000 0.000000
+0.000000 13.086768 0.000000
+0.000000 0.000000 13.086768
+Cd Te
+33 32
+direct
+0.004485 0.995515 0.004485 Cd
+0.001247 0.998753 0.496959 Cd
+0.001247 0.503041 0.001247 Cd
+0.999625 0.501218 0.498782 Cd
+0.496959 0.998753 0.001247 Cd
+0.498781 0.000375 0.498781 Cd
+0.498781 0.501219 0.999625 Cd
+0.500528 0.499472 0.500528 Cd
+0.001247 0.251247 0.253040 Cd
+0.004486 0.254485 0.745515 Cd
+0.999625 0.748782 0.251218 Cd
+0.001247 0.746959 0.748753 Cd
+0.498782 0.249625 0.251219 Cd
+0.496960 0.251247 0.748753 Cd
+0.500528 0.750528 0.249472 Cd
+0.498781 0.748781 0.750375 Cd
+0.251219 0.000375 0.251219 Cd
+0.253040 0.998753 0.748753 Cd
+0.249472 0.499472 0.249472 Cd
+0.251219 0.501219 0.750375 Cd
+0.748753 0.998753 0.253040 Cd
+0.745514 0.995515 0.745515 Cd
+0.750375 0.501219 0.251219 Cd
+0.748753 0.503040 0.748753 Cd
+0.253040 0.251247 0.001247 Cd
+0.251219 0.249625 0.498781 Cd
+0.251219 0.748781 0.999625 Cd
+0.249472 0.750528 0.500528 Cd
+0.745514 0.254485 0.004485 Cd
+0.748753 0.251247 0.496960 Cd
+0.748753 0.746959 0.001247 Cd
+0.750375 0.748782 0.498782 Cd
+0.875000 0.125000 0.875000 Cd
+0.126656 0.125000 0.375000 Te
+0.132779 0.125000 0.875000 Te
+0.125892 0.625000 0.375000 Te
+0.126656 0.625000 0.875000 Te
+0.623344 0.125000 0.375000 Te
+0.617221 0.125000 0.875000 Te
+0.624108 0.625000 0.375000 Te
+0.623344 0.625000 0.875000 Te
+0.124848 0.374848 0.124848 Te
+0.127488 0.377488 0.622512 Te
+0.127488 0.872512 0.127488 Te
+0.124848 0.875152 0.625152 Te
+0.622512 0.377488 0.127488 Te
+0.625152 0.374848 0.625152 Te
+0.625152 0.875152 0.124848 Te
+0.622512 0.872512 0.622512 Te
+0.375000 0.125000 0.126656 Te
+0.375000 0.125000 0.623344 Te
+0.375000 0.625000 0.125892 Te
+0.375000 0.625000 0.624108 Te
+0.875000 0.125000 0.132779 Te
+0.875000 0.125000 0.617221 Te
+0.875000 0.625000 0.126656 Te
+0.875000 0.625000 0.623344 Te
+0.375000 0.375892 0.375000 Te
+0.375000 0.376656 0.875000 Te
+0.375000 0.874108 0.375000 Te
+0.375000 0.873344 0.875000 Te
+0.875000 0.376656 0.375000 Te
+0.875000 0.382779 0.875000 Te
+0.875000 0.873344 0.375000 Te
+0.875000 0.867221 0.875000 Te
diff --git a/tests/apps/vasp/vasp.py b/tests/apps/vasp/vasp.py
index 6d0c0913..e703acbd 100644
--- a/tests/apps/vasp/vasp.py
+++ b/tests/apps/vasp/vasp.py
@@ -49,10 +49,11 @@ def setup_case(self):
 		self.prerun_cmds = [
 			"cd CdTe",
 			"mv INCAR.base INCAR",
+			"cat $VASP_PSPOT_DIR/potpaw_PBE/Cd/POTCAR  $VASP_PSPOT_DIR/potpaw_PBE/Te/POTCAR > POTCAR",
 			"echo 'NCORE=4' >> INCAR",
 			"echo 'KPAR=2' >> INCAR",
 		]
-
+		
 	@sanity_function
 	def assert_finished(self):
 		"""Sanity check that VASP completed and printed timing."""

From f2f9ff58af73ad667cef73066ccb9377cd90b9d1 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 14 Jul 2026 18:02:29 +0100
Subject: [PATCH 05/38] Clenup of cirrus-ex tests

---
 tests/apps/gromacs/gmx_1400k_atoms.py        | 22 +++++++++++---------
 tests/apps/openfoam/openfoam_org_cavity3d.py |  2 +-
 tests/apps/vasp/vasp.py                      | 15 ++++---------
 tests/env/slurm_energy_check.py              |  7 +++++--
 tests/libs/pytorch/deepcam.py                |  2 +-
 tests/synth/dstream/dstream.py               |  8 +++----
 tests/utils/containers/containers.py         |  8 +++----
 7 files changed, 31 insertions(+), 33 deletions(-)

diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index 2da37c33..b4a9bb77 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -28,22 +28,30 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
 
     energy_reference = -12071400.0
 
+
     reference = {
         "archer2:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (24.0, -0.1, None, "ns/day"),
         },
         "archer2-tds:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (22.4, -0.1, None, "ns/day"),
         },
         "cirrus:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (5.50, -0.1, None, "ns/day"),
         },
         "cirrus:compute-gpu": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (11.5, -0.05, None, "ns/day"),
+        },
+        "cirrus-ex:compute": {
+            "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (78.0, -0.03, None, "ns/day"),
         },
     }
 
-
 @rfm.simple_test
 class GromacsCPUCheck(Gromacs1400kAtomsBase):
     """Gromacs CPU checks"""
@@ -53,16 +61,12 @@ class GromacsCPUCheck(Gromacs1400kAtomsBase):
     descr = Gromacs1400kAtomsBase.descr + " -- CPU"
 
     n_nodes = 4
-    
+
     num_cpus_per_task = 1
     env_vars = {"OMP_NUM_THREADS": str(num_cpus_per_task)}
-    reference["archer2:compute"] = {}
-    reference["archer2-tds:compute"] = {}
-    reference["cirrus:compute"] = {}
 
-    reference["archer2:compute"]["performance"] = (24.0, -0.1, None, "ns/day")
-    reference["archer2-tds:compute"]["performance"] = (22.4, -0.1, None, "ns/day")
-    reference["cirrus:compute"]["performance"] = (5.50, -0.1, None, "ns/day")
+    
+    
     tags = {"applications", "performance", "small"}
     
 
@@ -92,8 +96,6 @@ class GromacsGPUCheck(Gromacs1400kAtomsBase):
     n_nodes = 1
     num_tasks = None
     num_cpus_per_tasks = None
-    reference["cirrus:compute-gpu"] = {}
-    reference["cirrus:compute-gpu"]["performance"] = (11.5, -0.05, None, "ns/day")
     
     @run_after("setup")
     def setup_gpu_options(self):
diff --git a/tests/apps/openfoam/openfoam_org_cavity3d.py b/tests/apps/openfoam/openfoam_org_cavity3d.py
index 82af928c..3a8ff4b9 100644
--- a/tests/apps/openfoam/openfoam_org_cavity3d.py
+++ b/tests/apps/openfoam/openfoam_org_cavity3d.py
@@ -60,4 +60,4 @@ class OpenFOAMCavity3D4Node(OpenFOAMCavity3DBase):
     executable = "icoFoam"
     executable_opts = ["-parallel", "-fileHandler", "collated"]
 
-    reference_performance_cirrus_ex = (81.8, -0.02, 0.02, "seconds")
\ No newline at end of file
+    reference_performance_cirrus_ex = (78, -0.1, 0.05, "seconds")
\ No newline at end of file
diff --git a/tests/apps/vasp/vasp.py b/tests/apps/vasp/vasp.py
index e703acbd..c1bd9be0 100644
--- a/tests/apps/vasp/vasp.py
+++ b/tests/apps/vasp/vasp.py
@@ -37,11 +37,10 @@ class VASPCdTeCheck(rfm.RunOnlyRegressionTest):
 
 	reference = {
 		"cirrus-ex:compute": {
-			"energy": (-190.96017678, -0.01, 0.01, "eV"),
-			"performance": (651.0, -0.10, 0.10, "seconds"),
+			"performance": (651.0, -0.05, 0.05, "seconds"),
 		}
 	}
-
+	
 	@run_before("run")
 	def setup_case(self):
 		"""Prepare the VASP input files and INCAR settings."""
@@ -53,7 +52,7 @@ def setup_case(self):
 			"echo 'NCORE=4' >> INCAR",
 			"echo 'KPAR=2' >> INCAR",
 		]
-		
+
 	@sanity_function
 	def assert_finished(self):
 		"""Sanity check that VASP completed and printed timing."""
@@ -64,13 +63,7 @@ def assert_finished(self):
 			]
 		)
 
-	@performance_function("eV", perf_key="energy")
-	def extract_energy(self):
-		"""Extract the final free energy from OUTCAR."""
-		return sn.extractsingle(
-			r"free\s+energy\s+TOTEN\s+=\s+(?P<energy>\S+)\s+eV", "CdTe/OUTCAR", "energy", float, item=-1
-		)
-
+	
 	@performance_function("seconds", perf_key="performance")
 	def extract_perf(self):
 		"""Extract elapsed runtime from OUTCAR."""
diff --git a/tests/env/slurm_energy_check.py b/tests/env/slurm_energy_check.py
index 36327eaf..0c1764f8 100644
--- a/tests/env/slurm_energy_check.py
+++ b/tests/env/slurm_energy_check.py
@@ -100,7 +100,7 @@ def extract_perf(self):
         )
 
         nodelist_raw = rfm.utility.osext.run_command(
-            "ls nid* | tr '\n' ',' | sed 's/,$//g'",
+            "ls cs-n* | tr '\n' ',' | sed 's/,$//g'",
             check=True,
             shell=True,
         )
@@ -109,9 +109,12 @@ def extract_perf(self):
         energy_data = []
         energy_counters = []
 
+        assert len(nodelist) == self.num_nodes, "Number of nodes in nodelist does not match number of nodes requested"
+        
         for nodeid in nodelist:
             energy_data.append(sn.extractall(r"(?P<energy>[0-9]+)\sJ\s(?P<time>[0-9]+)\sus", nodeid, "energy"))
-
+        
+        print("Node list: ", nodelist_raw)
         for energy in energy_data:
             energy_counters.append(int(str(energy[0])))
             energy_counters.append(int(str(energy[1])))
diff --git a/tests/libs/pytorch/deepcam.py b/tests/libs/pytorch/deepcam.py
index a775013c..e90614ab 100644
--- a/tests/libs/pytorch/deepcam.py
+++ b/tests/libs/pytorch/deepcam.py
@@ -89,7 +89,7 @@ class DeepCAMCPUtest(DeepCAMBase):
     valid_prog_environs = ["PrgEnv-cray"]
     reference = {
         "archer2:compute": {"epoch-time": (272, -0.1, 0.1, "s")},
-        "cirrus-ex:compute": {"epoch-time": (40.08, -0.01, 0.01, "s")},
+        "cirrus-ex:compute": {"epoch-time": (40, -0.03, 0.03, "s")},
     }
 
     @run_after("init")
diff --git a/tests/synth/dstream/dstream.py b/tests/synth/dstream/dstream.py
index fc67d951..76354dbd 100644
--- a/tests/synth/dstream/dstream.py
+++ b/tests/synth/dstream/dstream.py
@@ -31,10 +31,10 @@ class StreamTest(rfm.RegressionTest):
             "Triad": (219400, -0.05, 0.05, "MB/s"),
         },
         "cirrus-ex:compute": {
-            "Copy": (912000, -0.05, 0.05, "MB/s"),
-            "Scale": (799000, -0.05, 0.05, "MB/s"),
-            "Add": (933000, -0.05, 0.05, "MB/s"),
-            "Triad": (889000, -0.05, 0.05, "MB/s"),
+            "Copy": (912000, -0.06, 0.06, "MB/s"),
+            "Scale": (799000, -0.06, 0.06, "MB/s"),
+            "Add": (933000, -0.06, 0.06, "MB/s"),
+            "Triad": (889000, -0.06, 0.06, "MB/s"),
         },
         "cirrus:compute": {
             "Copy": (88898, -0.05, 0.05, "MB/s"),
diff --git a/tests/utils/containers/containers.py b/tests/utils/containers/containers.py
index 31f5fff0..a4f5452e 100644
--- a/tests/utils/containers/containers.py
+++ b/tests/utils/containers/containers.py
@@ -130,7 +130,7 @@ class OSUContainerTestCirrusEX(rfm.RunOnlyRegressionTest):
         "OMP_NUM_THREADS": str(num_cpus_per_task),
         "OMP_PLACES": "cores",
         "APPTAINERENV_LD_LIBRARY_PATH": "/opt/cray/pe/mpich/8.1.32/ofi/gnu/11.2/lib-abi-mpich:\
-/opt/cray/libfabric/1.22.0/lib64:\
+/opt/cray/libfabric/2.3.1/lib64:\
 /opt/cray/pals/1.6/lib:\
 /opt/cray/pe/lib64:\
 /opt/xpmem/lib64:/lib64",
@@ -139,7 +139,7 @@ class OSUContainerTestCirrusEX(rfm.RunOnlyRegressionTest):
 /etc/host.conf,/etc/libibverbs.d/mlx5.driver,\
 /etc/libnl/classid,\
 /etc/resolv.conf,\
-/opt/cray/libfabric/1.22.0/lib64/libfabric.so.1,\
+/opt/cray/libfabric/2.3.1/lib64/libfabric.so.1,\
 /lib64/libatomic.so.1,\
 /lib64/libgcc_s.so.1,/lib64/libgfortran.so.5,\
 /lib64/libquadmath.so.0,\
@@ -158,9 +158,9 @@ class OSUContainerTestCirrusEX(rfm.RunOnlyRegressionTest):
     }
 
     reference = {
-        "cirrus-ex:compute": {"latency_big": (1100, -0.02, 0.30, "us"), "latency_small": (9.7, -0.05, 0.30, "us")}
+        "cirrus-ex:compute": {"latency_big": (1100, -0.1, 0.30, "us"), "latency_small": (9.7, -0.1, 0.30, "us")}
     }
-
+    
     @require_deps
     def set_singularity_invoke(self):
         """Builds the command to be passed to srun"""

From 91d92dcd13ad7fc7eb79a49d76b25e990b057f08 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Wed, 15 Jul 2026 12:17:58 +0100
Subject: [PATCH 06/38] Fine-tuned the gromacs and lammps tests

---
 tests/apps/gromacs/gmx_1400k_atoms.py |  4 ++--
 tests/apps/lammps/ethanol.py          | 27 +++++++++------------------
 2 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index b4a9bb77..e28d2469 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -92,11 +92,11 @@ class GromacsGPUCheck(Gromacs1400kAtomsBase):
         "OMP_NUM_THREADS": "1",
         "PARAMS": '"--ntasks=40 --tasks-per-node=40"',
     }
-
+    
     n_nodes = 1
     num_tasks = None
     num_cpus_per_tasks = None
-    
+
     @run_after("setup")
     def setup_gpu_options(self):
         """sets up different resources for gpu systems"""
diff --git a/tests/apps/lammps/ethanol.py b/tests/apps/lammps/ethanol.py
index 1d6a673c..13a194a9 100644
--- a/tests/apps/lammps/ethanol.py
+++ b/tests/apps/lammps/ethanol.py
@@ -32,11 +32,13 @@ class LAMMPSBaseEthanol(LAMMPSBase):
     ethanol_energy_reference = 537394.35
 
     reference = {
-        "cirrus:compute-gpu": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol")},
-        "archer2:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol")},
-        "cirrus-ex:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol")},
-        "archer2-tds:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol")},
-    }
+        "cirrus:compute-gpu": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
+        "performance": (9.4, -0.05, None, "ns/day")
+                               },
+        "archer2:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
+        "cirrus-ex:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (27.56, -0.05, None, "ns/day")},
+        "archer2-tds:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
+    }   
 
     @performance_function("kJ/mol", perf_key="energy")
     def extract_energy(self):
@@ -52,18 +54,9 @@ def extract_energy(self):
 
 class LAMMPSEthanolCPU(LAMMPSBaseEthanol):
     """ReFrame LAMMPS Ethanol test for performance checks"""
-
+    
     descr = LAMMPSBaseEthanol.descr + " -- CPU"
 
-    reference["archer2-tds:compute"] = {}
-    reference["archer2:compute"] = {}
-    reference["cirrus-ex:compute"] = {}
-
-    reference["archer2:compute"]["performance"] = (11.250, -0.05, None, "ns/day")
-    reference["cirrus-ex:compute"]["performance"] = (27.56, -0.05, None, "ns/day")
-
-    reference["archer2-tds:compute"]["performance"] = (11.250, -0.05, None, "ns/day")
-
     @run_after("init")
     def setup_nnodes(self):
         """sets up number of tasks per node"""
@@ -77,7 +70,7 @@ def setup_nnodes(self):
     def set_executable(self):
         """sets up executable"""
         self.executable = os.path.join(self.stream_binary.build_system.builddir, "lmp")
-
+    
     @run_before("run")
     def setup_resources(self):
         """sets up number of tasks"""
@@ -127,8 +120,6 @@ class LAMMPSEthanolGPU(LAMMPSBaseEthanol):
     n_nodes = 1
     num_tasks = None
     num_cpus_per_task = None
-    reference["cirrus:compute-gpu"] = {}
-    reference["cirrus:compute-gpu"]["performance"] = (9.4, -0.05, None, "ns/day")
 
     @run_after("init")
     def setup_nnodes(self):

From d9d26320913b6cc41c1dcb78923983946f952876 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Wed, 15 Jul 2026 14:00:19 +0100
Subject: [PATCH 07/38] Added cbenchio benchmark

---
 tests/synth/cbenchio/cbenchio.py              | 260 ++++++++++++++++++
 tests/synth/cbenchio/cbenchio_benchmarks.py   |  58 ++++
 tests/synth/cbenchio/mpi-1D.yaml              |   6 +
 tests/synth/cbenchio/posix-large-random.yaml  |   5 +
 .../cbenchio/posix-large-sequential.yaml      |   5 +
 5 files changed, 334 insertions(+)
 create mode 100644 tests/synth/cbenchio/cbenchio.py
 create mode 100644 tests/synth/cbenchio/cbenchio_benchmarks.py
 create mode 100644 tests/synth/cbenchio/mpi-1D.yaml
 create mode 100644 tests/synth/cbenchio/posix-large-random.yaml
 create mode 100644 tests/synth/cbenchio/posix-large-sequential.yaml

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
new file mode 100644
index 00000000..a90dc332
--- /dev/null
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -0,0 +1,260 @@
+#!/usr/bin/env python3
+"""
+CBenchio Input/Output test
+"""
+
+from fileinput import filename
+import os
+from tempfile import template
+import types
+from typing import List
+import yaml
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+import numpy as np
+import reframe.core.builtins as builtins
+
+try:
+    from yaml import CLoader as Loader, CDumper as Dumper
+except ImportError:
+    from yaml import Loader, Dumper
+
+from reframe.core.builtins import (
+    fixture
+)
+import reframe.core.meta as meta
+
+
+""" Cbenchio tests
+
+Used for I/O benchmarking.
+
+Base and meta classes for cbenchio benchmarks
+
+"""
+
+def get_config(filename: str) -> dict:
+
+    """ Read parameters from a yaml file
+
+    Args:
+        filename: The name of the yaml file containing the parameters. The file should be located in the same directory as this script.
+    Returns:        A dictionary containing the parameters read from the yaml file.
+    
+    """
+
+    filename=os.path.join(os.path.dirname(__file__), filename) # Filename is relative to the location of this script
+
+    with open(filename, "r") as f:
+        config = yaml.load(f, Loader=Loader)
+    return config
+
+
+class Parameterize(meta.RegressionTestMeta):
+    """ Metaclass to parameterize a regression test based on a yaml configuration file.
+    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created. 
+    """
+
+    @classmethod
+    def __prepare__(metacls, name, bases, **kwds):
+        mapping =  super().__prepare__( name, bases)
+        return mapping
+    
+    def __new__(cls, name, bases, namespace,*args, **kwds):
+        
+        # Turn all labels in the yaml configuration
+        config = get_config(namespace["config"])
+        for parameter_name,parameter_values in config.items():            
+
+            namespace[parameter_name] = builtins.parameter(parameter_values)
+
+        obj = super().__new__(cls,name,bases,namespace,*args, **kwds)
+        return obj
+
+
+
+class cbenchio(rfm.RunOnlyRegressionTest):
+
+    tags = {"performance", "io"}
+
+    valid_systems = ["cirrus-ex:compute"]
+    valid_prog_environs = ["PrgEnv-gnu"]
+    maintainers = ["l.parisi@epcc.ed.ac.uk"]
+    config = None
+    # modules = ["cray-mpich/9.0.0"]
+
+    # env_vars = {
+    #     "LD_LIBRARY_PATH":"/opt/cray/pe/mpich/9.0.0/ofi/gnu/11.2/lib:$LD_LIBRARY_PATH"
+    # }
+
+    def __init__(self):
+        super().__init__()
+    
+    executable = "/work/z19/z19/lparisi/nfs-testing/cbenchio/opt/cbenchio/dev/bin/benchio"  
+    executable_opts = ["config.yaml"]
+
+
+    def write_config(self, config):
+        """ Write the configuration for cbenchio to a yaml file. """
+        
+        filename = os.path.join(self.stagedir, "config.yaml")
+        
+        with open(filename, 'w') as file:
+            yaml.dump( {
+            "benchmarks" : [config]
+        }, file, Dumper=yaml.Dumper)
+    
+    @sanity_function
+    def completed(self):
+        return sn.assert_found(r'Done', self.stdout) and sn.assert_true(os.path.exists( "report.yaml"))
+
+    @run_before('performance')
+    def extract_bandwidth(self):
+            
+        report_file = os.path.join(self.stagedir, "report.yaml")
+        with open(report_file, 'r') as file:
+            report = yaml.load(file, Loader=yaml.Loader)
+
+        bandwidths = [ result["bandwidth"] for result in report["benchmarks"][0]["results"] ] # Bandwidths measurements for each repeat of the benchmark.
+        self.perf_variables = {}
+        for i in range(len(bandwidths)):
+            self.perf_variables[f"bandwidth_{i}"] = sn.make_performance_function(lambda i=i: float(bandwidths[i]), "GB/s")
+        
+
+    
+class cbenchio_write(cbenchio):
+
+    
+    def set_default_parameter(self, param_name, default_value):
+        """ Set a default value for a parameter if it is not already set. 
+        
+        Might be done using custom setters and getters, but reframe's metaprogramming might interfere with that.
+        """
+        if not hasattr(self, param_name):
+            setattr(self, param_name, default_value)
+        # 
+
+    def set_default_parameters(self):
+        """ Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised. """
+
+        self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
+        self.set_default_parameter("repeat", 5)
+        self.set_default_parameter("stripe_size", 1024)
+        self.set_default_parameter("stripes", 1)
+        self.set_default_parameter("random_strided", False)
+        self.set_default_parameter("file_per_process", True)
+        self.set_default_parameter("fields", 1)
+        self.set_default_parameter("n_dimensions", 1)
+
+    def create_write_directories(self):
+            """ If writing data, create the target directory. """
+            
+            self.prerun_cmds=[]
+            
+            self.prerun_cmds.append(f"rm -rf {self.path}") # Cleaun up any previously written data
+            self.prerun_cmds.append(f"mkdir -p {self.path}") # Create the directory where to write the data
+            if self.stripes != 1: # Only valid on Lustre filesystem
+                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {self.stripe_size}K {self.path}")
+            self.prerun_cmds.append(f"chmod -R o+wXr {self.path}") # Allow anyone to delete the data from the benchmarks if not properly cleaned up
+
+
+
+
+
+    @run_before('run')
+    def init_parameters(self):
+        self.num_tasks = self.nodes * self.tasks_per_node
+        self.num_tasks_per_node = self.tasks_per_node
+        self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
+        self.path= os.path.join(self.base_path, f"{self.short_name}")
+        self.set_default_parameters() # Set default values for parameters if they are not already set.
+        self.cbenchio_config=self.generate_config() # Generate the parameters for cbenchio executable
+        self.write_config(self.cbenchio_config)
+        self.create_write_directories()
+
+
+    def generate_config(self):
+        """ Generates the yaml file as input to cbenchio"""
+
+        config={
+            "name": "bandwidth_test",
+            "API": self.api,
+            "processorGrid": [0,0,0],
+            "repeat": self.repeat,
+            "sync": True,
+            "operation": "write",
+            "content": "random",
+            "alignment": 4096,
+            "fields": self.fields
+        }
+
+        
+        config["filePerProcess"]=self.file_per_process
+        config["paths"]=[ self.path ]
+        type_size = 8 # (Bytes) Assuming we are writing 64-bit floating point numbers.
+
+        if config["API"] == "posix": # Chunk size and pattern is only supported for Posix
+            config["chunkSize"] = int(self.chunk_size * 2**10 / type_size) # Convert from KiB to number of elements (assuming 64-bit floating point numbers)
+            config["randomStrided"] = self.random_strided
+        
+        if self.file_per_process:
+            n_elements_per_dim = int(self.field_size_per_process_per_dimension * 2**10 /( type_size **self.n_dimensions)) # Total number of elements to write per process.
+        else:
+            n_elements_per_dim = int(self.field_size_per_process_per_dimension * self.num_tasks * 2**10 / ( type_size **self.n_dimensions)) # Total number of elements to write if all processes write to the same file.
+        
+
+        config["shape"] = [1,1,1]
+        
+        if self.api == "posix":
+            assert self.n_dimensions == 1, "Posix API only supports 1 dimension"
+        
+        assert self.n_dimensions <= 3, "Only up to 3 dimensions are supported"
+        
+
+        for d in range(3):
+            if d < self.n_dimensions:
+                config["shape"][d] = n_elements_per_dim
+        
+        return config
+
+class cbenchio_read(cbenchio):
+
+    @run_before("run")
+    def set_read_parameters(self):
+        cbenchio_config=self.write_test.cbenchio_config
+
+        # Create mirror read operation
+        cbenchio_config["operation"] = "read"
+        cbenchio_config["sync"]=False
+        cbenchio_config["checkReads"]=False
+        self.write_config(cbenchio_config)
+
+        # Submission parameters for the read test are the same as the write test
+        self.num_tasks = self.write_test.num_tasks
+        self.num_tasks_per_node = self.write_test.num_tasks_per_node
+        self.num_cpus_per_task = self.write_test.num_cpus_per_task
+        self.path = self.write_test.path
+
+    # @run_before("cleanup")
+    # def cleanup_written_files(self):
+    #     """  Cleanup the I/O directory after read tests, as we assume that the data is not needed afterwards.
+    #     We do not remove the data for write tests, as the data might be needed from other tests for reading.
+    #     """
+    #     # Remove the directory in path once we are done reading them. 
+
+    #     try:
+    #         os.system(f"rm -rf {self.path}")
+    #     except Exception as e:
+    #         print(f"Warning: Failed to clean up directory {self.path}: {e}")
+
+    
+def make_read_test(cls):
+        
+    # check that the class contains write
+    if cls.__name__.find("write") == -1:
+        raise ValueError("The class passed to make_read_test must contain 'write' in its name")
+    
+    fixture = rfm.core.builtins.fixture(cls, scope='environment')
+    module=fixture.cls.__module__
+    return rfm.simple_test(rfm.core.meta.make_test(cls.__name__.replace("write", "read"), (cbenchio_read,), {"operation": "read","write_test": fixture,}, module=module) )
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
new file mode 100644
index 00000000..de1f8e1c
--- /dev/null
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -0,0 +1,58 @@
+from cbenchio import cbenchio_write,Parameterize,cbenchio_read,make_read_test
+
+import reframe as rfm
+
+""" Cbenchio benchmarks
+
+Contains I/O benchmarks based on cbenchio.
+
+## Adding new tests
+
+Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. The class should have a config attribute pointing to a yaml file. The yaml file should contain the parameters for the test. For example:
+
+```python
+class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
+    operation = "write"
+    config= "posix.yaml"
+```
+
+Read tests can be generated from write tests using the make_read_test function. For example we can generate a read test from the write test above using:
+
+```python
+cbenchio_bandwidth_read = make_read_test(cbenchio_bandwidth_write)
+```
+
+"""
+
+
+class cbenchio_posix_sequential_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O. """
+    operation = "write"
+    config= "posix-large-sequential.yaml"
+    
+
+cbenchio_posix_sequential_read = make_read_test(cbenchio_posix_sequential_write)
+
+class cbenchio_posix_random_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O. """
+    operation = "write"
+    config= "posix-large-random.yaml"
+    random_strided = True
+    max_random_stride = 4096 # KiB
+    fields = 8
+    
+cbenchio_posix_random_read = make_read_test(cbenchio_posix_random_write)
+
+
+class cbenchio_mpi_1D_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for a single file written by all processes in a 1D layout. """
+    operation = "write"
+    config= "mpi-1D.yaml"
+    file_per_process = False
+    dimensions = 1
+    fields = 64
+    n_dimensions = 1
+    stripes = 8
+    stripe_size = 1024 # KiB
+
+cbenchio_mpi_1D_read = make_read_test(cbenchio_mpi_1D_write)
\ No newline at end of file
diff --git a/tests/synth/cbenchio/mpi-1D.yaml b/tests/synth/cbenchio/mpi-1D.yaml
new file mode 100644
index 00000000..ec3c43c5
--- /dev/null
+++ b/tests/synth/cbenchio/mpi-1D.yaml
@@ -0,0 +1,6 @@
+nodes: [ 12 ]
+tasks_per_node: [ 1 , 24 , 288 ]
+base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
+api: ["mpi"]
+stripes: [ 1, 16 ]
+field_size_per_process_per_dimension: [  32768 ] # KiB
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-large-random.yaml b/tests/synth/cbenchio/posix-large-random.yaml
new file mode 100644
index 00000000..6753ef1a
--- /dev/null
+++ b/tests/synth/cbenchio/posix-large-random.yaml
@@ -0,0 +1,5 @@
+nodes: [1 ]
+tasks_per_node: [1,8,24,144,288]
+base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
+api: ["posix"]
+chunk_size: [ 4 ] # KiB
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-large-sequential.yaml b/tests/synth/cbenchio/posix-large-sequential.yaml
new file mode 100644
index 00000000..1db0ae8a
--- /dev/null
+++ b/tests/synth/cbenchio/posix-large-sequential.yaml
@@ -0,0 +1,5 @@
+nodes: [1,2,4 ]
+tasks_per_node: [1,24]
+base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
+api: ["posix"]
+chunk_size: [4096 ] # KiB
\ No newline at end of file

From 9619ad47f589296b7f08aafbc4f21f191da3235c Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Thu, 16 Jul 2026 17:06:09 +0100
Subject: [PATCH 08/38] Minor changes foloowing the latest image update on
 cirrus

---
 configuration/cirrus-ex.py                    |   3 +-
 tests/apps/gromacs/gmx_1400k_atoms.py         |   3 +-
 tests/apps/lammps/ethanol.py                  |   4 +-
 tests/apps/lammps/exaalt.py                   |  13 +-
 tests/libs/pytorch/deepcam.py                 |   4 +-
 tests/synth/cbenchio/cbenchio.py              | 260 ------------------
 tests/synth/cbenchio/cbenchio_benchmarks.py   |  58 ----
 tests/synth/cbenchio/mpi-1D.yaml              |   6 -
 tests/synth/cbenchio/posix-large-random.yaml  |   5 -
 .../cbenchio/posix-large-sequential.yaml      |   5 -
 tests/synth/mpi_osu/osu_benchmarks.py         |   2 +-
 11 files changed, 15 insertions(+), 348 deletions(-)
 delete mode 100644 tests/synth/cbenchio/cbenchio.py
 delete mode 100644 tests/synth/cbenchio/cbenchio_benchmarks.py
 delete mode 100644 tests/synth/cbenchio/mpi-1D.yaml
 delete mode 100644 tests/synth/cbenchio/posix-large-random.yaml
 delete mode 100644 tests/synth/cbenchio/posix-large-sequential.yaml

diff --git a/configuration/cirrus-ex.py b/configuration/cirrus-ex.py
index ea303342..ac378ef7 100644
--- a/configuration/cirrus-ex.py
+++ b/configuration/cirrus-ex.py
@@ -3,7 +3,6 @@
 from reframe.core.backends import register_launcher
 from reframe.core.launchers import JobLauncher
 
-
 @register_launcher("torchrun")
 class TorchRunLauncher(JobLauncher):
     """Launcher for Torch run"""
@@ -51,7 +50,7 @@ def command(self, job):
                         "PrgEnv-aocc",
                         "PrgEnv-intel"
                     ],
-                    "max_jobs": 64,
+                    "max_jobs": 10,
                     "processor": {
                         "num_cpus": 288,
                         "num_cpus_per_socket": 144,
diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index e28d2469..405e3fbc 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -7,6 +7,7 @@
 from gromacs_base import GromacsBaseCheck
 
 
+
 class Gromacs1400kAtomsBase(GromacsBaseCheck):
     """ReFrame GROMACS 14000k atoms test base class"""
 
@@ -48,7 +49,7 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
         },
         "cirrus-ex:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
-            "performance": (78.0, -0.03, None, "ns/day"),
+            "performance": (78.0, -0.1, None, "ns/day"),
         },
     }
 
diff --git a/tests/apps/lammps/ethanol.py b/tests/apps/lammps/ethanol.py
index 13a194a9..828ae80d 100644
--- a/tests/apps/lammps/ethanol.py
+++ b/tests/apps/lammps/ethanol.py
@@ -36,7 +36,7 @@ class LAMMPSBaseEthanol(LAMMPSBase):
         "performance": (9.4, -0.05, None, "ns/day")
                                },
         "archer2:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
-        "cirrus-ex:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (27.56, -0.05, None, "ns/day")},
+        "cirrus-ex:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (26, -0.1, None, "ns/day")},
         "archer2-tds:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
     }   
 
@@ -80,7 +80,7 @@ def setup_resources(self):
 @rfm.simple_test
 class LAMMPSEthanolCPURunReframeBuild(LAMMPSEthanolCPU):
     """ReFrame LAMMPS Ethanol test for performance checks of the reframe-built executable"""
-
+    
     valid_systems = ["archer2:compute"]
     descr = LAMMPSEthanolCPU.descr + ", reframe-bult-executable -- CPU"
     stream_binary = fixture(BuildLAMMPS, scope="environment")
diff --git a/tests/apps/lammps/exaalt.py b/tests/apps/lammps/exaalt.py
index c997ee38..bce9eef4 100644
--- a/tests/apps/lammps/exaalt.py
+++ b/tests/apps/lammps/exaalt.py
@@ -83,7 +83,8 @@ class LAMMPSExaaltSmall(LAMMPSBaseExaalt):
 @rfm.simple_test
 class LAMMPSExaaltRef(LAMMPSBaseExaalt):
     
-    valid_systems = ["archer2:compute"]
+    valid_systems = ["archer2:compute","cirrus-ex:compute"]
+    
     
     """ReFrame LAMMPS largescale test based on NERSC-10 Exaalt benchmark"""
 
@@ -93,11 +94,11 @@ class LAMMPSExaaltRef(LAMMPSBaseExaalt):
     executable_opts = [
         "-in in.snap.test",
         "-var snapdir 2J8_W.SNAP",
-        "-var nx 1024",
-        "-var ny 1024",
-        "-var nz 1024",
+        "-var nx 512",
+        "-var ny 512",
+        "-var nz 512",
         "-var nsteps 100",
     ]
-
-    n_nodes = 1024
+    
+    n_nodes = 256
     time_limit = "30m"
diff --git a/tests/libs/pytorch/deepcam.py b/tests/libs/pytorch/deepcam.py
index e90614ab..16b92a68 100644
--- a/tests/libs/pytorch/deepcam.py
+++ b/tests/libs/pytorch/deepcam.py
@@ -89,9 +89,9 @@ class DeepCAMCPUtest(DeepCAMBase):
     valid_prog_environs = ["PrgEnv-cray"]
     reference = {
         "archer2:compute": {"epoch-time": (272, -0.1, 0.1, "s")},
-        "cirrus-ex:compute": {"epoch-time": (40, -0.03, 0.03, "s")},
+        "cirrus-ex:compute": {"epoch-time": (40, -0.1, 0.1, "s")},
     }
-
+    
     @run_after("init")
     def set_modules(self):
         "Defined modules to load based on current system"
diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
deleted file mode 100644
index a90dc332..00000000
--- a/tests/synth/cbenchio/cbenchio.py
+++ /dev/null
@@ -1,260 +0,0 @@
-#!/usr/bin/env python3
-"""
-CBenchio Input/Output test
-"""
-
-from fileinput import filename
-import os
-from tempfile import template
-import types
-from typing import List
-import yaml
-
-import reframe as rfm
-import reframe.utility.sanity as sn
-import numpy as np
-import reframe.core.builtins as builtins
-
-try:
-    from yaml import CLoader as Loader, CDumper as Dumper
-except ImportError:
-    from yaml import Loader, Dumper
-
-from reframe.core.builtins import (
-    fixture
-)
-import reframe.core.meta as meta
-
-
-""" Cbenchio tests
-
-Used for I/O benchmarking.
-
-Base and meta classes for cbenchio benchmarks
-
-"""
-
-def get_config(filename: str) -> dict:
-
-    """ Read parameters from a yaml file
-
-    Args:
-        filename: The name of the yaml file containing the parameters. The file should be located in the same directory as this script.
-    Returns:        A dictionary containing the parameters read from the yaml file.
-    
-    """
-
-    filename=os.path.join(os.path.dirname(__file__), filename) # Filename is relative to the location of this script
-
-    with open(filename, "r") as f:
-        config = yaml.load(f, Loader=Loader)
-    return config
-
-
-class Parameterize(meta.RegressionTestMeta):
-    """ Metaclass to parameterize a regression test based on a yaml configuration file.
-    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created. 
-    """
-
-    @classmethod
-    def __prepare__(metacls, name, bases, **kwds):
-        mapping =  super().__prepare__( name, bases)
-        return mapping
-    
-    def __new__(cls, name, bases, namespace,*args, **kwds):
-        
-        # Turn all labels in the yaml configuration
-        config = get_config(namespace["config"])
-        for parameter_name,parameter_values in config.items():            
-
-            namespace[parameter_name] = builtins.parameter(parameter_values)
-
-        obj = super().__new__(cls,name,bases,namespace,*args, **kwds)
-        return obj
-
-
-
-class cbenchio(rfm.RunOnlyRegressionTest):
-
-    tags = {"performance", "io"}
-
-    valid_systems = ["cirrus-ex:compute"]
-    valid_prog_environs = ["PrgEnv-gnu"]
-    maintainers = ["l.parisi@epcc.ed.ac.uk"]
-    config = None
-    # modules = ["cray-mpich/9.0.0"]
-
-    # env_vars = {
-    #     "LD_LIBRARY_PATH":"/opt/cray/pe/mpich/9.0.0/ofi/gnu/11.2/lib:$LD_LIBRARY_PATH"
-    # }
-
-    def __init__(self):
-        super().__init__()
-    
-    executable = "/work/z19/z19/lparisi/nfs-testing/cbenchio/opt/cbenchio/dev/bin/benchio"  
-    executable_opts = ["config.yaml"]
-
-
-    def write_config(self, config):
-        """ Write the configuration for cbenchio to a yaml file. """
-        
-        filename = os.path.join(self.stagedir, "config.yaml")
-        
-        with open(filename, 'w') as file:
-            yaml.dump( {
-            "benchmarks" : [config]
-        }, file, Dumper=yaml.Dumper)
-    
-    @sanity_function
-    def completed(self):
-        return sn.assert_found(r'Done', self.stdout) and sn.assert_true(os.path.exists( "report.yaml"))
-
-    @run_before('performance')
-    def extract_bandwidth(self):
-            
-        report_file = os.path.join(self.stagedir, "report.yaml")
-        with open(report_file, 'r') as file:
-            report = yaml.load(file, Loader=yaml.Loader)
-
-        bandwidths = [ result["bandwidth"] for result in report["benchmarks"][0]["results"] ] # Bandwidths measurements for each repeat of the benchmark.
-        self.perf_variables = {}
-        for i in range(len(bandwidths)):
-            self.perf_variables[f"bandwidth_{i}"] = sn.make_performance_function(lambda i=i: float(bandwidths[i]), "GB/s")
-        
-
-    
-class cbenchio_write(cbenchio):
-
-    
-    def set_default_parameter(self, param_name, default_value):
-        """ Set a default value for a parameter if it is not already set. 
-        
-        Might be done using custom setters and getters, but reframe's metaprogramming might interfere with that.
-        """
-        if not hasattr(self, param_name):
-            setattr(self, param_name, default_value)
-        # 
-
-    def set_default_parameters(self):
-        """ Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised. """
-
-        self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
-        self.set_default_parameter("repeat", 5)
-        self.set_default_parameter("stripe_size", 1024)
-        self.set_default_parameter("stripes", 1)
-        self.set_default_parameter("random_strided", False)
-        self.set_default_parameter("file_per_process", True)
-        self.set_default_parameter("fields", 1)
-        self.set_default_parameter("n_dimensions", 1)
-
-    def create_write_directories(self):
-            """ If writing data, create the target directory. """
-            
-            self.prerun_cmds=[]
-            
-            self.prerun_cmds.append(f"rm -rf {self.path}") # Cleaun up any previously written data
-            self.prerun_cmds.append(f"mkdir -p {self.path}") # Create the directory where to write the data
-            if self.stripes != 1: # Only valid on Lustre filesystem
-                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {self.stripe_size}K {self.path}")
-            self.prerun_cmds.append(f"chmod -R o+wXr {self.path}") # Allow anyone to delete the data from the benchmarks if not properly cleaned up
-
-
-
-
-
-    @run_before('run')
-    def init_parameters(self):
-        self.num_tasks = self.nodes * self.tasks_per_node
-        self.num_tasks_per_node = self.tasks_per_node
-        self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
-        self.path= os.path.join(self.base_path, f"{self.short_name}")
-        self.set_default_parameters() # Set default values for parameters if they are not already set.
-        self.cbenchio_config=self.generate_config() # Generate the parameters for cbenchio executable
-        self.write_config(self.cbenchio_config)
-        self.create_write_directories()
-
-
-    def generate_config(self):
-        """ Generates the yaml file as input to cbenchio"""
-
-        config={
-            "name": "bandwidth_test",
-            "API": self.api,
-            "processorGrid": [0,0,0],
-            "repeat": self.repeat,
-            "sync": True,
-            "operation": "write",
-            "content": "random",
-            "alignment": 4096,
-            "fields": self.fields
-        }
-
-        
-        config["filePerProcess"]=self.file_per_process
-        config["paths"]=[ self.path ]
-        type_size = 8 # (Bytes) Assuming we are writing 64-bit floating point numbers.
-
-        if config["API"] == "posix": # Chunk size and pattern is only supported for Posix
-            config["chunkSize"] = int(self.chunk_size * 2**10 / type_size) # Convert from KiB to number of elements (assuming 64-bit floating point numbers)
-            config["randomStrided"] = self.random_strided
-        
-        if self.file_per_process:
-            n_elements_per_dim = int(self.field_size_per_process_per_dimension * 2**10 /( type_size **self.n_dimensions)) # Total number of elements to write per process.
-        else:
-            n_elements_per_dim = int(self.field_size_per_process_per_dimension * self.num_tasks * 2**10 / ( type_size **self.n_dimensions)) # Total number of elements to write if all processes write to the same file.
-        
-
-        config["shape"] = [1,1,1]
-        
-        if self.api == "posix":
-            assert self.n_dimensions == 1, "Posix API only supports 1 dimension"
-        
-        assert self.n_dimensions <= 3, "Only up to 3 dimensions are supported"
-        
-
-        for d in range(3):
-            if d < self.n_dimensions:
-                config["shape"][d] = n_elements_per_dim
-        
-        return config
-
-class cbenchio_read(cbenchio):
-
-    @run_before("run")
-    def set_read_parameters(self):
-        cbenchio_config=self.write_test.cbenchio_config
-
-        # Create mirror read operation
-        cbenchio_config["operation"] = "read"
-        cbenchio_config["sync"]=False
-        cbenchio_config["checkReads"]=False
-        self.write_config(cbenchio_config)
-
-        # Submission parameters for the read test are the same as the write test
-        self.num_tasks = self.write_test.num_tasks
-        self.num_tasks_per_node = self.write_test.num_tasks_per_node
-        self.num_cpus_per_task = self.write_test.num_cpus_per_task
-        self.path = self.write_test.path
-
-    # @run_before("cleanup")
-    # def cleanup_written_files(self):
-    #     """  Cleanup the I/O directory after read tests, as we assume that the data is not needed afterwards.
-    #     We do not remove the data for write tests, as the data might be needed from other tests for reading.
-    #     """
-    #     # Remove the directory in path once we are done reading them. 
-
-    #     try:
-    #         os.system(f"rm -rf {self.path}")
-    #     except Exception as e:
-    #         print(f"Warning: Failed to clean up directory {self.path}: {e}")
-
-    
-def make_read_test(cls):
-        
-    # check that the class contains write
-    if cls.__name__.find("write") == -1:
-        raise ValueError("The class passed to make_read_test must contain 'write' in its name")
-    
-    fixture = rfm.core.builtins.fixture(cls, scope='environment')
-    module=fixture.cls.__module__
-    return rfm.simple_test(rfm.core.meta.make_test(cls.__name__.replace("write", "read"), (cbenchio_read,), {"operation": "read","write_test": fixture,}, module=module) )
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
deleted file mode 100644
index de1f8e1c..00000000
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ /dev/null
@@ -1,58 +0,0 @@
-from cbenchio import cbenchio_write,Parameterize,cbenchio_read,make_read_test
-
-import reframe as rfm
-
-""" Cbenchio benchmarks
-
-Contains I/O benchmarks based on cbenchio.
-
-## Adding new tests
-
-Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. The class should have a config attribute pointing to a yaml file. The yaml file should contain the parameters for the test. For example:
-
-```python
-class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
-    operation = "write"
-    config= "posix.yaml"
-```
-
-Read tests can be generated from write tests using the make_read_test function. For example we can generate a read test from the write test above using:
-
-```python
-cbenchio_bandwidth_read = make_read_test(cbenchio_bandwidth_write)
-```
-
-"""
-
-
-class cbenchio_posix_sequential_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O. """
-    operation = "write"
-    config= "posix-large-sequential.yaml"
-    
-
-cbenchio_posix_sequential_read = make_read_test(cbenchio_posix_sequential_write)
-
-class cbenchio_posix_random_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O. """
-    operation = "write"
-    config= "posix-large-random.yaml"
-    random_strided = True
-    max_random_stride = 4096 # KiB
-    fields = 8
-    
-cbenchio_posix_random_read = make_read_test(cbenchio_posix_random_write)
-
-
-class cbenchio_mpi_1D_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for a single file written by all processes in a 1D layout. """
-    operation = "write"
-    config= "mpi-1D.yaml"
-    file_per_process = False
-    dimensions = 1
-    fields = 64
-    n_dimensions = 1
-    stripes = 8
-    stripe_size = 1024 # KiB
-
-cbenchio_mpi_1D_read = make_read_test(cbenchio_mpi_1D_write)
\ No newline at end of file
diff --git a/tests/synth/cbenchio/mpi-1D.yaml b/tests/synth/cbenchio/mpi-1D.yaml
deleted file mode 100644
index ec3c43c5..00000000
--- a/tests/synth/cbenchio/mpi-1D.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-nodes: [ 12 ]
-tasks_per_node: [ 1 , 24 , 288 ]
-base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
-api: ["mpi"]
-stripes: [ 1, 16 ]
-field_size_per_process_per_dimension: [  32768 ] # KiB
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-large-random.yaml b/tests/synth/cbenchio/posix-large-random.yaml
deleted file mode 100644
index 6753ef1a..00000000
--- a/tests/synth/cbenchio/posix-large-random.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-nodes: [1 ]
-tasks_per_node: [1,8,24,144,288]
-base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
-api: ["posix"]
-chunk_size: [ 4 ] # KiB
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-large-sequential.yaml b/tests/synth/cbenchio/posix-large-sequential.yaml
deleted file mode 100644
index 1db0ae8a..00000000
--- a/tests/synth/cbenchio/posix-large-sequential.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-nodes: [1,2,4 ]
-tasks_per_node: [1,24]
-base_path: ["/work/z19/z19/lparisi/nfs-testing/run/data"]
-api: ["posix"]
-chunk_size: [4096 ] # KiB
\ No newline at end of file
diff --git a/tests/synth/mpi_osu/osu_benchmarks.py b/tests/synth/mpi_osu/osu_benchmarks.py
index d8737515..75774c2a 100644
--- a/tests/synth/mpi_osu/osu_benchmarks.py
+++ b/tests/synth/mpi_osu/osu_benchmarks.py
@@ -155,7 +155,7 @@ class OSUAllreduceTest(OSUBenchmarkTestBase):
     descr = "OSU Allreduce test"
     mpi_tasks = parameter(1 << i for i in range(1, 5))
     osu_binaries = fixture(OSUBuild, scope="environment")
-
+    
     @run_after("init")
     def set_num_tasks(self):
         """Sets number of tasks"""

From 3e82b5754216d80ac2894543ab90b5032e779205 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Sat, 8 Aug 2026 08:24:57 +0100
Subject: [PATCH 09/38] Added cbenchio benchmarks

---
 tests/synth/cbenchio/cbenchio.py            | 264 ++++++++++++++++++++
 tests/synth/cbenchio/cbenchio_benchmarks.py |  69 +++++
 tests/synth/cbenchio/mpi-1D.yaml            |   6 +
 tests/synth/cbenchio/mpi-3D.yaml            |   6 +
 tests/synth/cbenchio/posix-random.yaml      |   6 +
 tests/synth/cbenchio/posix-sequential.yaml  |   6 +
 6 files changed, 357 insertions(+)
 create mode 100644 tests/synth/cbenchio/cbenchio.py
 create mode 100644 tests/synth/cbenchio/cbenchio_benchmarks.py
 create mode 100644 tests/synth/cbenchio/mpi-1D.yaml
 create mode 100644 tests/synth/cbenchio/mpi-3D.yaml
 create mode 100644 tests/synth/cbenchio/posix-random.yaml
 create mode 100644 tests/synth/cbenchio/posix-sequential.yaml

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
new file mode 100644
index 00000000..2c8d9f95
--- /dev/null
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -0,0 +1,264 @@
+#!/usr/bin/env python3
+"""
+CBenchio Input/Output test
+"""
+
+from fileinput import filename
+import os
+from tempfile import template
+import types
+from typing import List
+import yaml
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+import numpy as np
+import reframe.core.builtins as builtins
+
+try:
+    from yaml import CLoader as Loader, CDumper as Dumper
+except ImportError:
+    from yaml import Loader, Dumper
+
+from reframe.core.builtins import (
+    fixture
+)
+import reframe.core.meta as meta
+
+
+""" Cbenchio tests
+
+Used for I/O benchmarking.
+
+Base and meta classes for cbenchio benchmarks
+
+"""
+
+def get_config(filename: str) -> dict:
+
+    """ Read parameters from a yaml file
+
+    Args:
+        filename: The name of the yaml file containing the parameters. The file should be located in the same directory as this script.
+    Returns:        A dictionary containing the parameters read from the yaml file.
+    
+    """
+
+    filename=os.path.join(os.path.dirname(__file__), filename) # Filename is relative to the location of this script
+
+    with open(filename, "r") as f:
+        config = yaml.load(f, Loader=Loader)
+    return config
+
+
+class Parameterize(meta.RegressionTestMeta):
+    """ Metaclass to parameterize a regression test based on a yaml configuration file.
+    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created. 
+    """
+
+    @classmethod
+    def __prepare__(metacls, name, bases, **kwds):
+        mapping =  super().__prepare__( name, bases)
+        return mapping
+    
+    def __new__(cls, name, bases, namespace,*args, **kwds):
+        
+        # Turn all labels in the yaml configuration
+        config = get_config(namespace["config"])
+        for parameter_name,parameter_values in config.items():            
+
+            namespace[parameter_name] = builtins.parameter(parameter_values)
+
+        obj = super().__new__(cls,name,bases,namespace,*args, **kwds)
+        return obj
+
+
+
+class cbenchio(rfm.RunOnlyRegressionTest):
+
+    tags = {"performance", "io"}
+    
+    valid_systems = ["cirrus-ex:compute"]
+    valid_prog_environs = ["PrgEnv-gnu"]
+    maintainers = ["l.parisi@epcc.ed.ac.uk"]
+    config = None
+    modules = ["cbenchio-gcc"]
+
+    def __init__(self):
+        super().__init__()
+    
+    executable = "benchio"
+    executable_opts = ["config.yaml"]
+
+    def write_config(self, config):
+        """ Write the configuration for cbenchio to a yaml file. """
+        
+        filename = os.path.join(self.stagedir, "config.yaml")
+        
+        with open(filename, 'w') as file:
+            yaml.dump( {
+            "benchmarks" : [config]
+        }, file, Dumper=yaml.Dumper)
+    
+    @sanity_function
+    def completed(self):
+        return sn.assert_found(r'Done', self.stdout) and sn.assert_true(os.path.exists( "report.yaml"))
+
+    @run_before('performance')
+    def extract_bandwidth(self):
+            
+        report_file = os.path.join(self.stagedir, "report.yaml")
+        with open(report_file, 'r') as file:
+            report = yaml.load(file, Loader=yaml.Loader)
+
+        bandwidths = [ result["bandwidth"] for result in report["benchmarks"][0]["results"] ] # Bandwidths measurements for each repeat of the benchmark.
+        self.perf_variables = {}
+        for i in range(len(bandwidths)):
+            self.perf_variables[f"bandwidth_{i}"] = sn.make_performance_function(lambda i=i: float(bandwidths[i]), "GB/s")
+        
+
+    
+class cbenchio_write(cbenchio):
+
+    
+    def set_default_parameter(self, param_name, default_value):
+        """ Set a default value for a parameter if it is not already set. 
+        
+        Might be done using custom setters and getters, but reframe's metaprogramming might interfere with that.
+        """
+        if not hasattr(self, param_name):
+            setattr(self, param_name, default_value)
+        # 
+
+    def set_default_parameters(self):
+        """ Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised. """
+        
+        self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
+        self.set_default_parameter("repeat", 8)
+        self.set_default_parameter("stripe_size", 1048576)
+        self.set_default_parameter("stripes", 1)
+        self.set_default_parameter("random_strided", False)
+        self.set_default_parameter("file_per_process", True)
+        self.set_default_parameter("fields", 1)
+        self.set_default_parameter("n_dimensions", 1)
+        self.set_default_parameter("decomposition", "slab")
+
+    def create_write_directories(self):
+            """ If writing data, create the target directory. """
+            
+            self.prerun_cmds=[]
+            
+            self.prerun_cmds.append(f"rm -rf {self.path}") # Cleaun up any previously written data
+            self.prerun_cmds.append(f"mkdir -p {self.path}") # Create the directory where to write the data
+
+            if self.stripes=="num_nodes":
+                self.stripes=self.nodes
+
+            if self.stripes != 1: # Only valid on Lustre filesystem
+                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
+            self.prerun_cmds.append(f"chmod -R o+wXr {self.path}") # Allow anyone to delete the data from the benchmarks if not properly cleaned up
+
+
+
+
+
+    @run_before('run')
+    def init_parameters(self):
+        self.num_tasks = self.nodes * self.tasks_per_node
+        self.num_tasks_per_node = self.tasks_per_node
+        self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
+        self.path= os.path.join(self.base_path, f"{self.short_name}")
+        self.set_default_parameters() # Set default values for parameters if they are not already set.
+        self.cbenchio_config=self.generate_config() # Generate the parameters for cbenchio executable
+        self.write_config(self.cbenchio_config)
+        self.create_write_directories()
+
+
+    def generate_config(self):
+        """ Generates the yaml file as input to cbenchio"""
+
+        config={
+            "name": "bandwidth_test",
+            "API": self.api,
+            "processorGrid": [0,0,0],
+            "repeat": self.repeat,
+            "sync": True,
+            "operation": "write",
+            "content": "random",
+            "alignment": 4096,
+            "fields": self.fields
+        }
+        
+
+
+        config["filePerProcess"]=self.file_per_process
+        config["paths"]=[ self.path ]
+        type_size = 8 # (Bytes) Assuming we are writing 64-bit floating point numbers.
+
+        if config["API"] == "posix": # Chunk size and pattern is only supported for Posix
+            config["chunkSize"] = int(self.chunk_size / type_size) # Convert from bytes to number of elements (assuming 64-bit floating point numbers)
+            config["randomStrided"] = self.random_strided
+        
+        
+        n_elements_per_process_per_dim = int(self.field_size_per_process_per_dimension /( type_size) ) # Total number of elements to write per process.
+
+        # Compute domain decomposition and shape
+        config["shape"] = [1,1,1]
+        
+        if self.api == "posix":
+            assert self.n_dimensions == 1, "Posix API only supports 1 dimension"
+        
+        assert self.n_dimensions <= 3, "Only up to 3 dimensions are supported"
+
+        assert self.decomposition == "slab", "Only slab decomposition is supported for now"
+        for d in range(3):
+            
+            if d < self.n_dimensions:
+                config["shape"][d] = n_elements_per_process_per_dim
+        
+        if not self.file_per_process:
+            config["processorGrid"] = [self.num_tasks,0,0]
+            config["shape"][0] = n_elements_per_process_per_dim * self.num_tasks
+        
+        return config
+
+class cbenchio_read(cbenchio):
+
+    @run_before("run")
+    def set_read_parameters(self):
+        cbenchio_config=self.write_test.cbenchio_config
+
+        # Create mirror read operation
+        cbenchio_config["operation"] = "read"
+        cbenchio_config["sync"]=False
+        cbenchio_config["checkReads"]=False
+        self.write_config(cbenchio_config)
+
+        # Submission parameters for the read test are the same as the write test
+        self.num_tasks = self.write_test.num_tasks
+        self.num_tasks_per_node = self.write_test.num_tasks_per_node
+        self.num_cpus_per_task = self.write_test.num_cpus_per_task
+        self.path = self.write_test.path
+
+    @run_before("cleanup")
+    def cleanup_written_files(self):
+        """  Cleanup the I/O directory after read tests, as we assume that the data is not needed afterwards.
+        We do not remove the data for write tests, as the data might be needed from other tests for reading.
+        """
+        # Remove the directory in path once we are done reading them. 
+
+        try:
+            os.system(f"rm -rf {self.path}")
+        except Exception as e:
+            print(f"Warning: Failed to clean up directory {self.path}: {e}")
+
+    
+def make_read_test(cls):
+
+    # check that the class contains write
+    if cls.__name__.find("write") == -1:
+        raise ValueError("The class passed to make_read_test must contain 'write' in its name")
+
+    fixture = rfm.core.builtins.fixture(cls, scope='environment')
+    module=fixture.cls.__module__
+    return rfm.simple_test(rfm.core.meta.make_test(cls.__name__.replace("write", "read"), (cbenchio_read,), {"operation": "read","write_test": fixture,}, module=module) )
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
new file mode 100644
index 00000000..9c8f5b05
--- /dev/null
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -0,0 +1,69 @@
+from cbenchio import cbenchio_write,Parameterize,cbenchio_read,make_read_test
+
+import reframe as rfm
+
+""" Cbenchio benchmarks
+
+Contains I/O benchmarks based on cbenchio.
+
+## Adding new tests
+
+Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. The class should have a config attribute pointing to a yaml file. The yaml file should contain the parameters for the test. For example:
+
+```python
+class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
+    operation = "write"
+    config= "posix.yaml"
+```
+
+Read tests can be generated from write tests using the make_read_test function. For example we can generate a read test from the write test above using:
+
+```python
+cbenchio_bandwidth_read = make_read_test(cbenchio_bandwidth_write)
+```
+
+"""
+
+class cbenchio_posix_sequential_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O. """
+    operation = "write"
+    config= "posix-sequential.yaml"
+    fields = 1
+    
+
+cbenchio_posix_sequential_read = make_read_test(cbenchio_posix_sequential_write)
+
+class cbenchio_posix_random_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O. """
+    operation = "write"
+    config= "posix-random.yaml"
+    random_strided = True
+    fields = 4
+    
+cbenchio_posix_random_read = make_read_test(cbenchio_posix_random_write)
+
+
+class cbenchio_mpi_1D_write(cbenchio_write,metaclass=Parameterize):
+    """ Ideal scaling of a 1D array with one task per node. This tests the ideal scaling of parallel writes to a single file. """
+    operation = "write"
+    config= "mpi-1D.yaml"
+    file_per_process = False
+    dimensions = 1
+    fields = 4
+    n_dimensions = 1
+    stripe_size = 4194304
+
+cbenchio_mpi_1D_read = make_read_test(cbenchio_mpi_1D_write)
+
+
+class cbenchio_mpi_3D_write(cbenchio_write,metaclass=Parameterize):
+    """ Measure the bandwidth of the filesystem for a single file written by all processes in a 3D layout. """
+    operation = "write"
+    config= "mpi-3D.yaml"
+    file_per_process = False
+    dimensions = 3
+    fields = 4
+    n_dimensions = 3
+    stripe_size = 4194304
+
+cbenchio_mpi_3D_read = make_read_test(cbenchio_mpi_3D_write)
diff --git a/tests/synth/cbenchio/mpi-1D.yaml b/tests/synth/cbenchio/mpi-1D.yaml
new file mode 100644
index 00000000..abca21db
--- /dev/null
+++ b/tests/synth/cbenchio/mpi-1D.yaml
@@ -0,0 +1,6 @@
+nodes: [ 1, 4, 8 ]
+tasks_per_node: [ 1 ]
+base_path: ["/work/z19/shared/io_benchmarks"]
+api: ["mpi"]
+stripes: [ "num_nodes" ]
+field_size_per_process_per_dimension: [ 1073741824 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/mpi-3D.yaml b/tests/synth/cbenchio/mpi-3D.yaml
new file mode 100644
index 00000000..0d89e923
--- /dev/null
+++ b/tests/synth/cbenchio/mpi-3D.yaml
@@ -0,0 +1,6 @@
+nodes: [1, 4, 8]
+tasks_per_node: [288]
+base_path: ["/work/z19/shared/io_benchmarks"]
+api: ["mpi"]
+stripes: [ -1 ]
+field_size_per_process_per_dimension: [ 1024 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-random.yaml b/tests/synth/cbenchio/posix-random.yaml
new file mode 100644
index 00000000..b097dcea
--- /dev/null
+++ b/tests/synth/cbenchio/posix-random.yaml
@@ -0,0 +1,6 @@
+nodes: [ 1, 4 , 8 ]
+tasks_per_node: [ 288 ]
+base_path: ["/work/z19/shared/io_benchmarks" ]
+api: ["posix"]
+chunk_size: [ 4096 ]
+field_size_per_process_per_dimension: [  65536 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-sequential.yaml b/tests/synth/cbenchio/posix-sequential.yaml
new file mode 100644
index 00000000..cf7aa048
--- /dev/null
+++ b/tests/synth/cbenchio/posix-sequential.yaml
@@ -0,0 +1,6 @@
+nodes: [ 1,4, 8 ]
+tasks_per_node: [ 288 ]
+base_path: ["/work/z19/shared/io_benchmarks"]
+api: ["posix"]
+chunk_size: [ 4194304 ]
+field_size_per_process_per_dimension: [  536870912 ]
\ No newline at end of file

From bcf22f11bdbbb3642f860ee993c8fa964b457658 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Sat, 8 Aug 2026 08:34:12 +0100
Subject: [PATCH 10/38] parameterised work directory bug fixed

---
 tests/synth/mdtest/mdtest.py | 145 +++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 tests/synth/mdtest/mdtest.py

diff --git a/tests/synth/mdtest/mdtest.py b/tests/synth/mdtest/mdtest.py
new file mode 100644
index 00000000..1459151b
--- /dev/null
+++ b/tests/synth/mdtest/mdtest.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+"""ReFrame test for mdtest benchmark."""
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+from reframe.core.builtins import performance_function, run_before, sanity_function
+
+class Mdtest(rfm.RunOnlyRegressionTest):
+    """Run mdtest with the same configuration as test-run/mdtest/submit.sh."""
+
+    valid_systems = ["cirrus-ex:compute"]
+    valid_prog_environs = ["PrgEnv-gnu"]
+    modules = ["mdtest-gcc"]
+
+    num_cpus_per_task = 1
+    time_limit = "20m"
+    executable = "mdtest"
+
+    env_vars = {
+        "OMP_NUM_THREADS": "1",
+        "OMP_PLACES": "cores",
+    }
+
+
+    tags = {"performance", "io"}
+
+     # Set the number of tasks based on test parameters, defined in derived classes.
+    @run_after("init")
+    def set_num_tasks(self):
+        self.num_tasks = self.tasks_per_node * self.nodes
+        self.num_tasks_per_node = self.tasks_per_node
+        self.num_cpus_per_task = 288 // self.tasks_per_node
+
+        
+    @run_before("run")
+    def set_executable_opts(self):
+        
+        opts = [
+            "-F",
+            "-C",
+            "-T",
+            "-r",
+            "-n",
+            str(self.num_files_per_task),
+            "-N",
+            str(self.num_tasks_per_node),
+            "-d",
+            self.work_directory
+        ]
+
+        if self.multiple_directories:
+            opts.append("-u")
+
+
+        self.executable_opts = opts
+
+    @run_before("run")
+    def set_run_options(self):
+        """Set srun options for the job launcher.
+                """
+        self.job.launcher.options = ["--mem=0", "--hint=nomultithread", "--distribution=block:block"]
+        self.postrun_cmds = [f"rm -rf {self.work_directory}"]
+
+    @sanity_function
+    def assert_mdtest_finished(self):
+        """Sanity checks."""
+        return sn.assert_found(r"SUMMARY:\s+\(of\s+1\s+iterations\)", self.stdout)
+
+    @performance_function("ops/s")
+    def file_creation_mean(self):
+        """Extract mean file creation rate from mdtest summary."""
+        return sn.extractsingle(
+            r"^\s*File creation\s*:\s*\S+\s+\S+\s+(\S+)",
+            self.stdout,
+            1,
+            float,
+            item=-1,
+        )
+
+    @performance_function("ops/s")
+    def file_stat_mean(self):
+        """Extract mean file stat rate from mdtest summary."""
+        return sn.extractsingle(
+            r"^\s*File stat\s*:\s*\S+\s+\S+\s+(\S+)",
+            self.stdout,
+            1,
+            float,
+            item=-1,
+        )
+
+    @performance_function("ops/s")
+    def file_removal_mean(self):
+        """Extract mean file removal rate from mdtest summary."""
+        return sn.extractsingle(
+            r"^\s*File removal\s*:\s*\S+\s+\S+\s+(\S+)",
+            self.stdout,
+            1,
+            float,
+            item=-1,
+        )
+
+    @performance_function("ops/s")
+    def tree_creation_mean(self):
+        """Extract mean tree creation rate from mdtest summary."""
+        return sn.extractsingle(
+            r"^\s*Tree creation\s*:\s*\S+\s+\S+\s+(\S+)",
+            self.stdout,
+            1,
+            float,
+            item=-1,
+        )
+
+    @performance_function("ops/s")
+    def tree_removal_mean(self):
+        """Extract mean tree removal rate from mdtest summary."""
+        return sn.extractsingle(
+            r"^\s*Tree removal\s*:\s*\S+\s+\S+\s+(\S+)",
+            self.stdout,
+            1,
+            float,
+            item=-1,
+        )
+
+@rfm.simple_test
+class MdtestSingleNode(Mdtest):
+    """Single node multiple directories mdtest test."""
+    nodes = 1
+    tasks_per_node = parameter([1, 8, 24, 96, 288])
+    
+    num_cpus_per_task = 1
+    time_limit = "20m"
+    num_files_per_task = 1000
+    multiple_directories = True
+    work_directory = parameter(["test_dir"])    
+
+@rfm.simple_test
+class MdtestMultiNode(Mdtest):
+    """Run mdtest multiple directories on multiple nodes."""
+    nodes = parameter([2, 4, 8, 16])
+    tasks_per_node = 288
+    num_cpus_per_task = 1
+    time_limit = "20m"
+    num_files_per_task = 1000
+    multiple_directories = True
+    work_directory = parameter(["test_dir"])

From 8d32bba887b418000168b2bf6d02b6dd6920f197 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Sat, 8 Aug 2026 09:42:52 +0100
Subject: [PATCH 11/38] Refectored the slurm checks

---
 tests/env/slurm_energy_check.py | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/tests/env/slurm_energy_check.py b/tests/env/slurm_energy_check.py
index 0c1764f8..63d6a254 100644
--- a/tests/env/slurm_energy_check.py
+++ b/tests/env/slurm_energy_check.py
@@ -83,15 +83,8 @@ class SlurmEnergy4nodesTest(rfm.RunOnlyRegressionTest):
         "cirrus-ex:compute": {"energy-diff": (0, -1, 1, "J")},
     }
 
-    @sanity_function
-    def assert_finished(self):
-        """Sanity check that SLURM_CPU_FREQ_REQ is set"""
-        return sn.assert_found("", self.stdout)
-
-    @performance_function("J", perf_key="energy-diff")
-    def extract_perf(self):
-        """Extract energy from counters to compare with slurm and check diff is zero"""
-
+    def get_energy(self):
+        """ Return energy from slurm and energy from counters"""
         jobid = self.job.jobid
         slurm = rfm.utility.osext.run_command(
             "sacct -j " + str(jobid) + " --format=JobID,ConsumedEnergy --noconvert | tr '\n' ' ' ",
@@ -128,7 +121,7 @@ def extract_perf(self):
             # print(energy_counters[i + 1] - energy_counters[i])
             energy_counters_diff += energy_counters[i + 1] - energy_counters[i]
 
-        diff = energy_counters_diff - int(str(energy_slurm[0]))
+        return energy_counters_diff , int(str(energy_slurm[0]))
 
         # Helpful debugging outputs:
         # print("jobid: ", jobid)
@@ -138,5 +131,20 @@ def extract_perf(self):
         # print("2x energy counter recordings: ", energy_counters)
         # print("Difference between the energy counters: ", energy_counters_diff)
         # print("difference between counters and slurm: ", diff)
+            
+    @sanity_function
+    def assert_energy_recorded(self):
+        """Assert that the energy counters and slurm energy are greater than zero"""
+
+        energy_counters_diff, energy_slurm = self.get_energy()
+        
+        return sn.assert_true(energy_counters_diff> 0) and sn.assert_true(energy_slurm> 0)    
+
+    @performance_function("J", perf_key="energy-diff")
+    def extract_perf(self):
+        """Extract relative energy difference between counters and slurm output"""
+
+        energy_counters_diff, energy_slurm = self.get_energy()
+        diff = (energy_counters_diff - energy_slurm)/energy_slurm
 
         return diff

From 4b696c0a8a662e35b5f3bed17cced168a10a7170 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Sat, 8 Aug 2026 09:43:27 +0100
Subject: [PATCH 12/38] Disabled gromacs checks

---
 tests/apps/gromacs/gmx_1400k_atoms.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index 405e3fbc..be46decb 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -49,7 +49,10 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
         },
         "cirrus-ex:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
-            "performance": (78.0, -0.1, None, "ns/day"),
+            # The performance of this benchmark seems to be very variable, 
+            # with performance sometimes dropping below 50 ns/day. 
+            # Disabling the performance check for now until we can investigate this further.
+            #"performance": (78.0, -0.1, None, "ns/day"), 
         },
     }
 

From 55125890142a5c833a469dd61f966a8c1985b456 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Sat, 8 Aug 2026 10:14:18 +0100
Subject: [PATCH 13/38] Udjusted openfoam reference

---
 tests/apps/openfoam/openfoam_org_cavity3d.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/apps/openfoam/openfoam_org_cavity3d.py b/tests/apps/openfoam/openfoam_org_cavity3d.py
index 3a8ff4b9..ec655d99 100644
--- a/tests/apps/openfoam/openfoam_org_cavity3d.py
+++ b/tests/apps/openfoam/openfoam_org_cavity3d.py
@@ -60,4 +60,4 @@ class OpenFOAMCavity3D4Node(OpenFOAMCavity3DBase):
     executable = "icoFoam"
     executable_opts = ["-parallel", "-fileHandler", "collated"]
 
-    reference_performance_cirrus_ex = (78, -0.1, 0.05, "seconds")
\ No newline at end of file
+    reference_performance_cirrus_ex = (78, -0.2, 0.1, "seconds")
\ No newline at end of file

From 860c5931a63687a405313f89239135fe2a9eb5c3 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 14:42:08 +0100
Subject: [PATCH 14/38] style changes on new tests

---
 tests/apps/gromacs/gmx_1400k_atoms.py        |  16 +-
 tests/apps/lammps/ethanol.py                 |  30 ++-
 tests/apps/lammps/exaalt.py                  |  26 ++-
 tests/apps/openfoam/openfoam_org_cavity3d.py |  11 +-
 tests/apps/vasp/vasp.py                      | 101 +++++-----
 tests/env/slurm_energy_check.py              |  16 +-
 tests/libs/pytorch/deepcam.py                |   2 +-
 tests/synth/cbenchio/cbenchio.py             | 182 ++++++++++---------
 tests/synth/cbenchio/cbenchio_benchmarks.py  |  39 ++--
 tests/synth/mdtest/mdtest.py                 |  21 ++-
 tests/synth/mpi_osu/osu_benchmarks.py        |   2 +-
 tests/utils/containers/containers.py         |   2 +-
 12 files changed, 233 insertions(+), 215 deletions(-)

diff --git a/tests/apps/gromacs/gmx_1400k_atoms.py b/tests/apps/gromacs/gmx_1400k_atoms.py
index be46decb..4ee307d4 100644
--- a/tests/apps/gromacs/gmx_1400k_atoms.py
+++ b/tests/apps/gromacs/gmx_1400k_atoms.py
@@ -7,7 +7,6 @@
 from gromacs_base import GromacsBaseCheck
 
 
-
 class Gromacs1400kAtomsBase(GromacsBaseCheck):
     """ReFrame GROMACS 14000k atoms test base class"""
 
@@ -29,7 +28,6 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
 
     energy_reference = -12071400.0
 
-
     reference = {
         "archer2:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
@@ -49,18 +47,19 @@ class Gromacs1400kAtomsBase(GromacsBaseCheck):
         },
         "cirrus-ex:compute": {
             "energy": (energy_reference, -0.01, 0.01, "kJ/mol"),
-            # The performance of this benchmark seems to be very variable, 
-            # with performance sometimes dropping below 50 ns/day. 
+            # The performance of this benchmark seems to be very variable,
+            # with performance sometimes dropping below 50 ns/day.
             # Disabling the performance check for now until we can investigate this further.
-            #"performance": (78.0, -0.1, None, "ns/day"), 
+            # "performance": (78.0, -0.1, None, "ns/day"),
         },
     }
 
+
 @rfm.simple_test
 class GromacsCPUCheck(Gromacs1400kAtomsBase):
     """Gromacs CPU checks"""
 
-    valid_systems = ["archer2:compute", "cirrus:compute","cirrus-ex:compute"]
+    valid_systems = ["archer2:compute", "cirrus:compute", "cirrus-ex:compute"]
     modules = ["gromacs"]
     descr = Gromacs1400kAtomsBase.descr + " -- CPU"
 
@@ -69,10 +68,7 @@ class GromacsCPUCheck(Gromacs1400kAtomsBase):
     num_cpus_per_task = 1
     env_vars = {"OMP_NUM_THREADS": str(num_cpus_per_task)}
 
-    
-    
     tags = {"applications", "performance", "small"}
-    
 
     @run_before("run")
     def setup_resources(self):
@@ -96,7 +92,7 @@ class GromacsGPUCheck(Gromacs1400kAtomsBase):
         "OMP_NUM_THREADS": "1",
         "PARAMS": '"--ntasks=40 --tasks-per-node=40"',
     }
-    
+
     n_nodes = 1
     num_tasks = None
     num_cpus_per_tasks = None
diff --git a/tests/apps/lammps/ethanol.py b/tests/apps/lammps/ethanol.py
index 828ae80d..171c2bf6 100644
--- a/tests/apps/lammps/ethanol.py
+++ b/tests/apps/lammps/ethanol.py
@@ -32,13 +32,23 @@ class LAMMPSBaseEthanol(LAMMPSBase):
     ethanol_energy_reference = 537394.35
 
     reference = {
-        "cirrus:compute-gpu": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
-        "performance": (9.4, -0.05, None, "ns/day")
-                               },
-        "archer2:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
-        "cirrus-ex:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (26, -0.1, None, "ns/day")},
-        "archer2-tds:compute": {"energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"), "performance": (11.250, -0.05, None, "ns/day")},
-    }   
+        "cirrus:compute-gpu": {
+            "energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (9.4, -0.05, None, "ns/day"),
+        },
+        "archer2:compute": {
+            "energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (11.250, -0.05, None, "ns/day"),
+        },
+        "cirrus-ex:compute": {
+            "energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (26, -0.1, None, "ns/day"),
+        },
+        "archer2-tds:compute": {
+            "energy": (ethanol_energy_reference, -0.01, 0.01, "kJ/mol"),
+            "performance": (11.250, -0.05, None, "ns/day"),
+        },
+    }
 
     @performance_function("kJ/mol", perf_key="energy")
     def extract_energy(self):
@@ -54,7 +64,7 @@ def extract_energy(self):
 
 class LAMMPSEthanolCPU(LAMMPSBaseEthanol):
     """ReFrame LAMMPS Ethanol test for performance checks"""
-    
+
     descr = LAMMPSBaseEthanol.descr + " -- CPU"
 
     @run_after("init")
@@ -70,7 +80,7 @@ def setup_nnodes(self):
     def set_executable(self):
         """sets up executable"""
         self.executable = os.path.join(self.stream_binary.build_system.builddir, "lmp")
-    
+
     @run_before("run")
     def setup_resources(self):
         """sets up number of tasks"""
@@ -80,7 +90,7 @@ def setup_resources(self):
 @rfm.simple_test
 class LAMMPSEthanolCPURunReframeBuild(LAMMPSEthanolCPU):
     """ReFrame LAMMPS Ethanol test for performance checks of the reframe-built executable"""
-    
+
     valid_systems = ["archer2:compute"]
     descr = LAMMPSEthanolCPU.descr + ", reframe-bult-executable -- CPU"
     stream_binary = fixture(BuildLAMMPS, scope="environment")
diff --git a/tests/apps/lammps/exaalt.py b/tests/apps/lammps/exaalt.py
index bce9eef4..fd34b749 100644
--- a/tests/apps/lammps/exaalt.py
+++ b/tests/apps/lammps/exaalt.py
@@ -7,18 +7,16 @@
 
 from lammps_base import BuildLAMMPS, LAMMPSBase
 
+
 class LAMMPSBaseExaalt(LAMMPSBase):
     """ReFrame LAMMPS Base class for Exaalt tests"""
-    
+
     num_cpus_per_task = 1
     env_vars = {"OMP_NUM_THREADS": str(num_cpus_per_task)}
     modules = ["lammps"]
     cores = variable(
         dict,
-        value={
-            "archer2:compute": 128,
-            "cirrus-ex:compute" : 288
-        },
+        value={"archer2:compute": 128, "cirrus-ex:compute": 288},
     )
 
     reference = {
@@ -31,7 +29,6 @@ class LAMMPSBaseExaalt(LAMMPSBase):
         },
     }
 
-
     @run_after("init")
     def setup_nnodes(self):
         """sets up number of nodes"""
@@ -63,10 +60,10 @@ def extract_energy(self):
 @rfm.simple_test
 class LAMMPSExaaltSmall(LAMMPSBaseExaalt):
     """ReFrame LAMMPS small test based on NERSC-10 Exaalt benchmark"""
-    
-    valid_systems = ["archer2:compute","cirrus-ex:compute"]
+
+    valid_systems = ["archer2:compute", "cirrus-ex:compute"]
     descr = "Small performance test using NERSC-10 Exaalt LAMMPS benchmark reference run"
-    tags = {"applications", "performance","small"}
+    tags = {"applications", "performance", "small"}
     executable_opts = [
         "-in in.snap.test",
         "-var snapdir 2J8_W.SNAP",
@@ -76,16 +73,15 @@ class LAMMPSExaaltSmall(LAMMPSBaseExaalt):
         "-var nsteps 200",
     ]
 
-    
     n_nodes = 4
     time_limit = "30m"
 
+
 @rfm.simple_test
 class LAMMPSExaaltRef(LAMMPSBaseExaalt):
-    
-    valid_systems = ["archer2:compute","cirrus-ex:compute"]
-    
-    
+
+    valid_systems = ["archer2:compute", "cirrus-ex:compute"]
+
     """ReFrame LAMMPS largescale test based on NERSC-10 Exaalt benchmark"""
 
     descr = "Largescale performance test using NERSC-10 Exaalt LAMMPS benchmark reference run"
@@ -99,6 +95,6 @@ class LAMMPSExaaltRef(LAMMPSBaseExaalt):
         "-var nz 512",
         "-var nsteps 100",
     ]
-    
+
     n_nodes = 256
     time_limit = "30m"
diff --git a/tests/apps/openfoam/openfoam_org_cavity3d.py b/tests/apps/openfoam/openfoam_org_cavity3d.py
index ec655d99..061c90d6 100644
--- a/tests/apps/openfoam/openfoam_org_cavity3d.py
+++ b/tests/apps/openfoam/openfoam_org_cavity3d.py
@@ -10,7 +10,7 @@ class OpenFOAMCavity3DBase(OpenFOAMBase):
     """OpenFOAM 3D lid-driven cavity base test."""
 
     valid_systems = ["cirrus-ex:compute"]
-    
+
     num_cpus_per_task = 1
     time_limit = "20m"
 
@@ -37,12 +37,12 @@ def extract_perf(self):
     @run_before("run")
     def setup_testcase(self):
         """Prepare to run OpenFoam in parallel, by performance the mesh decomposition and partitioning."""
-        
+
         self.prerun_cmds = [
             "cd cavity_3d",
             "blockMesh",
             f"cp system/decomposeParDict{self.num_tasks:04.0f}  system/decomposeParDict",
-            "decomposePar -force -fileHandler collated"
+            "decomposePar -force -fileHandler collated",
         ]
 
     modules = ["openfoam-org"]
@@ -52,12 +52,13 @@ def set_reference(self):
         """Set the reference performance for Cirrus."""
         self.reference["cirrus-ex:compute:performance"] = self.reference_performance_cirrus_ex
 
+
 @rfm.simple_test
 class OpenFOAMCavity3D4Node(OpenFOAMCavity3DBase):
     """OpenFOAM 3D lid-driven cavity test on four nodes."""
-    
+
     num_nodes = 4
     executable = "icoFoam"
     executable_opts = ["-parallel", "-fileHandler", "collated"]
 
-    reference_performance_cirrus_ex = (78, -0.2, 0.1, "seconds")
\ No newline at end of file
+    reference_performance_cirrus_ex = (78, -0.2, 0.1, "seconds")
diff --git a/tests/apps/vasp/vasp.py b/tests/apps/vasp/vasp.py
index c1bd9be0..1bd9e6a4 100644
--- a/tests/apps/vasp/vasp.py
+++ b/tests/apps/vasp/vasp.py
@@ -10,61 +10,60 @@
 
 @rfm.simple_test
 class VASPCdTeCheck(rfm.RunOnlyRegressionTest):
-	"""VASP CdTe correctness and performance check."""
+    """VASP CdTe correctness and performance check."""
 
-	descr = "VASP CdTe benchmark run"
-	valid_systems = ["cirrus-ex:compute"]
-	valid_prog_environs = ["PrgEnv-gnu"]
-	modules = ["vasp/6/6.5.1"]
+    descr = "VASP CdTe benchmark run"
+    valid_systems = ["cirrus-ex:compute"]
+    valid_prog_environs = ["PrgEnv-gnu"]
+    modules = ["vasp/6/6.5.1"]
 
-	executable = "vasp_ncl"
+    executable = "vasp_ncl"
 
-	num_nodes = 4
-	num_tasks_per_node = 144
-	num_cpus_per_task = 2
-	num_tasks = num_nodes * num_tasks_per_node
-	time_limit = "20m"
+    num_nodes = 4
+    num_tasks_per_node = 144
+    num_cpus_per_task = 2
+    num_tasks = num_nodes * num_tasks_per_node
+    time_limit = "20m"
 
-	use_multithreading = False
-	tags = {"applications", "performance","small"}
-	keep_files = ["OUTCAR", "INCAR"]
-	
-	env_vars = {
-		"OMP_NUM_THREADS": "1",
-		"OMP_PLACES": "cores",
-		"SRUN_CPUS_PER_TASK": str(num_cpus_per_task),
-	}
+    use_multithreading = False
+    tags = {"applications", "performance", "small"}
+    keep_files = ["OUTCAR", "INCAR"]
 
-	reference = {
-		"cirrus-ex:compute": {
-			"performance": (651.0, -0.05, 0.05, "seconds"),
-		}
-	}
-	
-	@run_before("run")
-	def setup_case(self):
-		"""Prepare the VASP input files and INCAR settings."""
-		self.job.launcher.options = ["--hint=nomultithread", "--distribution=block:block"]
-		self.prerun_cmds = [
-			"cd CdTe",
-			"mv INCAR.base INCAR",
-			"cat $VASP_PSPOT_DIR/potpaw_PBE/Cd/POTCAR  $VASP_PSPOT_DIR/potpaw_PBE/Te/POTCAR > POTCAR",
-			"echo 'NCORE=4' >> INCAR",
-			"echo 'KPAR=2' >> INCAR",
-		]
+    env_vars = {
+        "OMP_NUM_THREADS": "1",
+        "OMP_PLACES": "cores",
+        "SRUN_CPUS_PER_TASK": str(num_cpus_per_task),
+    }
 
-	@sanity_function
-	def assert_finished(self):
-		"""Sanity check that VASP completed and printed timing."""
-		return sn.all(
-			[
-				sn.assert_found(r"General timing and accounting informations for this job:", "CdTe/OUTCAR"),
-				sn.assert_found(r"Elapsed time \(sec\):", "CdTe/OUTCAR"),
-			]
-		)
+    reference = {
+        "cirrus-ex:compute": {
+            "performance": (651.0, -0.05, 0.05, "seconds"),
+        }
+    }
 
-	
-	@performance_function("seconds", perf_key="performance")
-	def extract_perf(self):
-		"""Extract elapsed runtime from OUTCAR."""
-		return sn.extractsingle(r"Elapsed time \(sec\):\s+(?P<runtime>\S+)", "CdTe/OUTCAR", "runtime", float)
+    @run_before("run")
+    def setup_case(self):
+        """Prepare the VASP input files and INCAR settings."""
+        self.job.launcher.options = ["--hint=nomultithread", "--distribution=block:block"]
+        self.prerun_cmds = [
+            "cd CdTe",
+            "mv INCAR.base INCAR",
+            "cat $VASP_PSPOT_DIR/potpaw_PBE/Cd/POTCAR  $VASP_PSPOT_DIR/potpaw_PBE/Te/POTCAR > POTCAR",
+            "echo 'NCORE=4' >> INCAR",
+            "echo 'KPAR=2' >> INCAR",
+        ]
+
+    @sanity_function
+    def assert_finished(self):
+        """Sanity check that VASP completed and printed timing."""
+        return sn.all(
+            [
+                sn.assert_found(r"General timing and accounting informations for this job:", "CdTe/OUTCAR"),
+                sn.assert_found(r"Elapsed time \(sec\):", "CdTe/OUTCAR"),
+            ]
+        )
+
+    @performance_function("seconds", perf_key="performance")
+    def extract_perf(self):
+        """Extract elapsed runtime from OUTCAR."""
+        return sn.extractsingle(r"Elapsed time \(sec\):\s+(?P<runtime>\S+)", "CdTe/OUTCAR", "runtime", float)
diff --git a/tests/env/slurm_energy_check.py b/tests/env/slurm_energy_check.py
index 63d6a254..4cdd106b 100644
--- a/tests/env/slurm_energy_check.py
+++ b/tests/env/slurm_energy_check.py
@@ -84,7 +84,7 @@ class SlurmEnergy4nodesTest(rfm.RunOnlyRegressionTest):
     }
 
     def get_energy(self):
-        """ Return energy from slurm and energy from counters"""
+        """Return energy from slurm and energy from counters"""
         jobid = self.job.jobid
         slurm = rfm.utility.osext.run_command(
             "sacct -j " + str(jobid) + " --format=JobID,ConsumedEnergy --noconvert | tr '\n' ' ' ",
@@ -103,10 +103,10 @@ def get_energy(self):
         energy_counters = []
 
         assert len(nodelist) == self.num_nodes, "Number of nodes in nodelist does not match number of nodes requested"
-        
+
         for nodeid in nodelist:
             energy_data.append(sn.extractall(r"(?P<energy>[0-9]+)\sJ\s(?P<time>[0-9]+)\sus", nodeid, "energy"))
-        
+
         print("Node list: ", nodelist_raw)
         for energy in energy_data:
             energy_counters.append(int(str(energy[0])))
@@ -121,7 +121,7 @@ def get_energy(self):
             # print(energy_counters[i + 1] - energy_counters[i])
             energy_counters_diff += energy_counters[i + 1] - energy_counters[i]
 
-        return energy_counters_diff , int(str(energy_slurm[0]))
+        return energy_counters_diff, int(str(energy_slurm[0]))
 
         # Helpful debugging outputs:
         # print("jobid: ", jobid)
@@ -131,20 +131,20 @@ def get_energy(self):
         # print("2x energy counter recordings: ", energy_counters)
         # print("Difference between the energy counters: ", energy_counters_diff)
         # print("difference between counters and slurm: ", diff)
-            
+
     @sanity_function
     def assert_energy_recorded(self):
         """Assert that the energy counters and slurm energy are greater than zero"""
 
         energy_counters_diff, energy_slurm = self.get_energy()
-        
-        return sn.assert_true(energy_counters_diff> 0) and sn.assert_true(energy_slurm> 0)    
+
+        return sn.assert_true(energy_counters_diff > 0) and sn.assert_true(energy_slurm > 0)
 
     @performance_function("J", perf_key="energy-diff")
     def extract_perf(self):
         """Extract relative energy difference between counters and slurm output"""
 
         energy_counters_diff, energy_slurm = self.get_energy()
-        diff = (energy_counters_diff - energy_slurm)/energy_slurm
+        diff = (energy_counters_diff - energy_slurm) / energy_slurm
 
         return diff
diff --git a/tests/libs/pytorch/deepcam.py b/tests/libs/pytorch/deepcam.py
index 16b92a68..4cf0f907 100644
--- a/tests/libs/pytorch/deepcam.py
+++ b/tests/libs/pytorch/deepcam.py
@@ -91,7 +91,7 @@ class DeepCAMCPUtest(DeepCAMBase):
         "archer2:compute": {"epoch-time": (272, -0.1, 0.1, "s")},
         "cirrus-ex:compute": {"epoch-time": (40, -0.1, 0.1, "s")},
     }
-    
+
     @run_after("init")
     def set_modules(self):
         "Defined modules to load based on current system"
diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 2c8d9f95..b9bd9be2 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -20,9 +20,7 @@
 except ImportError:
     from yaml import Loader, Dumper
 
-from reframe.core.builtins import (
-    fixture
-)
+from reframe.core.builtins import fixture
 import reframe.core.meta as meta
 
 
@@ -34,17 +32,17 @@
 
 """
 
-def get_config(filename: str) -> dict:
 
-    """ Read parameters from a yaml file
+def get_config(filename: str) -> dict:
+    """Read parameters from a yaml file
 
     Args:
         filename: The name of the yaml file containing the parameters. The file should be located in the same directory as this script.
     Returns:        A dictionary containing the parameters read from the yaml file.
-    
+
     """
 
-    filename=os.path.join(os.path.dirname(__file__), filename) # Filename is relative to the location of this script
+    filename = os.path.join(os.path.dirname(__file__), filename)  # Filename is relative to the location of this script
 
     with open(filename, "r") as f:
         config = yaml.load(f, Loader=Loader)
@@ -52,32 +50,31 @@ def get_config(filename: str) -> dict:
 
 
 class Parameterize(meta.RegressionTestMeta):
-    """ Metaclass to parameterize a regression test based on a yaml configuration file.
-    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created. 
+    """Metaclass to parameterize a regression test based on a yaml configuration file.
+    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created.
     """
 
     @classmethod
     def __prepare__(metacls, name, bases, **kwds):
-        mapping =  super().__prepare__( name, bases)
+        mapping = super().__prepare__(name, bases)
         return mapping
-    
-    def __new__(cls, name, bases, namespace,*args, **kwds):
-        
+
+    def __new__(cls, name, bases, namespace, *args, **kwds):
+
         # Turn all labels in the yaml configuration
         config = get_config(namespace["config"])
-        for parameter_name,parameter_values in config.items():            
+        for parameter_name, parameter_values in config.items():
 
             namespace[parameter_name] = builtins.parameter(parameter_values)
 
-        obj = super().__new__(cls,name,bases,namespace,*args, **kwds)
+        obj = super().__new__(cls, name, bases, namespace, *args, **kwds)
         return obj
 
 
-
 class cbenchio(rfm.RunOnlyRegressionTest):
 
     tags = {"performance", "io"}
-    
+
     valid_systems = ["cirrus-ex:compute"]
     valid_prog_environs = ["PrgEnv-gnu"]
     maintainers = ["l.parisi@epcc.ed.ac.uk"]
@@ -86,53 +83,53 @@ class cbenchio(rfm.RunOnlyRegressionTest):
 
     def __init__(self):
         super().__init__()
-    
+
     executable = "benchio"
     executable_opts = ["config.yaml"]
 
     def write_config(self, config):
-        """ Write the configuration for cbenchio to a yaml file. """
-        
+        """Write the configuration for cbenchio to a yaml file."""
+
         filename = os.path.join(self.stagedir, "config.yaml")
-        
-        with open(filename, 'w') as file:
-            yaml.dump( {
-            "benchmarks" : [config]
-        }, file, Dumper=yaml.Dumper)
-    
+
+        with open(filename, "w") as file:
+            yaml.dump({"benchmarks": [config]}, file, Dumper=yaml.Dumper)
+
     @sanity_function
     def completed(self):
-        return sn.assert_found(r'Done', self.stdout) and sn.assert_true(os.path.exists( "report.yaml"))
+        return sn.assert_found(r"Done", self.stdout) and sn.assert_true(os.path.exists("report.yaml"))
 
-    @run_before('performance')
+    @run_before("performance")
     def extract_bandwidth(self):
-            
+
         report_file = os.path.join(self.stagedir, "report.yaml")
-        with open(report_file, 'r') as file:
+        with open(report_file, "r") as file:
             report = yaml.load(file, Loader=yaml.Loader)
 
-        bandwidths = [ result["bandwidth"] for result in report["benchmarks"][0]["results"] ] # Bandwidths measurements for each repeat of the benchmark.
+        bandwidths = [
+            result["bandwidth"] for result in report["benchmarks"][0]["results"]
+        ]  # Bandwidths measurements for each repeat of the benchmark.
         self.perf_variables = {}
         for i in range(len(bandwidths)):
-            self.perf_variables[f"bandwidth_{i}"] = sn.make_performance_function(lambda i=i: float(bandwidths[i]), "GB/s")
-        
+            self.perf_variables[f"bandwidth_{i}"] = sn.make_performance_function(
+                lambda i=i: float(bandwidths[i]), "GB/s"
+            )
+
 
-    
 class cbenchio_write(cbenchio):
 
-    
     def set_default_parameter(self, param_name, default_value):
-        """ Set a default value for a parameter if it is not already set. 
-        
+        """Set a default value for a parameter if it is not already set.
+
         Might be done using custom setters and getters, but reframe's metaprogramming might interfere with that.
         """
         if not hasattr(self, param_name):
             setattr(self, param_name, default_value)
-        # 
+        #
 
     def set_default_parameters(self):
-        """ Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised. """
-        
+        """Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised."""
+
         self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
         self.set_default_parameter("repeat", 8)
         self.set_default_parameter("stripe_size", 1048576)
@@ -144,94 +141,93 @@ def set_default_parameters(self):
         self.set_default_parameter("decomposition", "slab")
 
     def create_write_directories(self):
-            """ If writing data, create the target directory. """
-            
-            self.prerun_cmds=[]
-            
-            self.prerun_cmds.append(f"rm -rf {self.path}") # Cleaun up any previously written data
-            self.prerun_cmds.append(f"mkdir -p {self.path}") # Create the directory where to write the data
-
-            if self.stripes=="num_nodes":
-                self.stripes=self.nodes
+        """If writing data, create the target directory."""
 
-            if self.stripes != 1: # Only valid on Lustre filesystem
-                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
-            self.prerun_cmds.append(f"chmod -R o+wXr {self.path}") # Allow anyone to delete the data from the benchmarks if not properly cleaned up
+        self.prerun_cmds = []
 
+        self.prerun_cmds.append(f"rm -rf {self.path}")  # Cleaun up any previously written data
+        self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
+        if self.stripes == "num_nodes":
+            self.stripes = self.nodes
 
+        if self.stripes != 1:  # Only valid on Lustre filesystem
+            self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
+        self.prerun_cmds.append(
+            f"chmod -R o+wXr {self.path}"
+        )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up
 
-
-    @run_before('run')
+    @run_before("run")
     def init_parameters(self):
         self.num_tasks = self.nodes * self.tasks_per_node
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
-        self.path= os.path.join(self.base_path, f"{self.short_name}")
-        self.set_default_parameters() # Set default values for parameters if they are not already set.
-        self.cbenchio_config=self.generate_config() # Generate the parameters for cbenchio executable
+        self.path = os.path.join(self.base_path, f"{self.short_name}")
+        self.set_default_parameters()  # Set default values for parameters if they are not already set.
+        self.cbenchio_config = self.generate_config()  # Generate the parameters for cbenchio executable
         self.write_config(self.cbenchio_config)
         self.create_write_directories()
 
-
     def generate_config(self):
-        """ Generates the yaml file as input to cbenchio"""
+        """Generates the yaml file as input to cbenchio"""
 
-        config={
+        config = {
             "name": "bandwidth_test",
             "API": self.api,
-            "processorGrid": [0,0,0],
+            "processorGrid": [0, 0, 0],
             "repeat": self.repeat,
             "sync": True,
             "operation": "write",
             "content": "random",
             "alignment": 4096,
-            "fields": self.fields
+            "fields": self.fields,
         }
-        
-
 
-        config["filePerProcess"]=self.file_per_process
-        config["paths"]=[ self.path ]
-        type_size = 8 # (Bytes) Assuming we are writing 64-bit floating point numbers.
+        config["filePerProcess"] = self.file_per_process
+        config["paths"] = [self.path]
+        type_size = 8  # (Bytes) Assuming we are writing 64-bit floating point numbers.
 
-        if config["API"] == "posix": # Chunk size and pattern is only supported for Posix
-            config["chunkSize"] = int(self.chunk_size / type_size) # Convert from bytes to number of elements (assuming 64-bit floating point numbers)
+        if config["API"] == "posix":  # Chunk size and pattern is only supported for Posix
+            config["chunkSize"] = int(
+                self.chunk_size / type_size
+            )  # Convert from bytes to number of elements (assuming 64-bit floating point numbers)
             config["randomStrided"] = self.random_strided
-        
-        
-        n_elements_per_process_per_dim = int(self.field_size_per_process_per_dimension /( type_size) ) # Total number of elements to write per process.
+
+        n_elements_per_process_per_dim = int(
+            self.field_size_per_process_per_dimension / (type_size)
+        )  # Total number of elements to write per process.
 
         # Compute domain decomposition and shape
-        config["shape"] = [1,1,1]
-        
+        config["shape"] = [1, 1, 1]
+
         if self.api == "posix":
             assert self.n_dimensions == 1, "Posix API only supports 1 dimension"
-        
+
         assert self.n_dimensions <= 3, "Only up to 3 dimensions are supported"
 
         assert self.decomposition == "slab", "Only slab decomposition is supported for now"
         for d in range(3):
-            
+
             if d < self.n_dimensions:
                 config["shape"][d] = n_elements_per_process_per_dim
-        
+
         if not self.file_per_process:
-            config["processorGrid"] = [self.num_tasks,0,0]
+            config["processorGrid"] = [self.num_tasks, 0, 0]
             config["shape"][0] = n_elements_per_process_per_dim * self.num_tasks
-        
+
         return config
 
+
 class cbenchio_read(cbenchio):
 
     @run_before("run")
     def set_read_parameters(self):
-        cbenchio_config=self.write_test.cbenchio_config
+        cbenchio_config = self.write_test.cbenchio_config
 
         # Create mirror read operation
         cbenchio_config["operation"] = "read"
-        cbenchio_config["sync"]=False
-        cbenchio_config["checkReads"]=False
+        cbenchio_config["sync"] = False
+        cbenchio_config["checkReads"] = False
         self.write_config(cbenchio_config)
 
         # Submission parameters for the read test are the same as the write test
@@ -242,23 +238,33 @@ def set_read_parameters(self):
 
     @run_before("cleanup")
     def cleanup_written_files(self):
-        """  Cleanup the I/O directory after read tests, as we assume that the data is not needed afterwards.
+        """Cleanup the I/O directory after read tests, as we assume that the data is not needed afterwards.
         We do not remove the data for write tests, as the data might be needed from other tests for reading.
         """
-        # Remove the directory in path once we are done reading them. 
+        # Remove the directory in path once we are done reading them.
 
         try:
             os.system(f"rm -rf {self.path}")
         except Exception as e:
             print(f"Warning: Failed to clean up directory {self.path}: {e}")
 
-    
+
 def make_read_test(cls):
 
     # check that the class contains write
     if cls.__name__.find("write") == -1:
         raise ValueError("The class passed to make_read_test must contain 'write' in its name")
 
-    fixture = rfm.core.builtins.fixture(cls, scope='environment')
-    module=fixture.cls.__module__
-    return rfm.simple_test(rfm.core.meta.make_test(cls.__name__.replace("write", "read"), (cbenchio_read,), {"operation": "read","write_test": fixture,}, module=module) )
+    fixture = rfm.core.builtins.fixture(cls, scope="environment")
+    module = fixture.cls.__module__
+    return rfm.simple_test(
+        rfm.core.meta.make_test(
+            cls.__name__.replace("write", "read"),
+            (cbenchio_read,),
+            {
+                "operation": "read",
+                "write_test": fixture,
+            },
+            module=module,
+        )
+    )
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 9c8f5b05..e1a40f8d 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -1,4 +1,4 @@
-from cbenchio import cbenchio_write,Parameterize,cbenchio_read,make_read_test
+from cbenchio import cbenchio_write, Parameterize, cbenchio_read, make_read_test
 
 import reframe as rfm
 
@@ -24,46 +24,55 @@ class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
 
 """
 
-class cbenchio_posix_sequential_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O. """
+
+class cbenchio_posix_sequential_write(cbenchio_write, metaclass=Parameterize):
+    """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""
+
     operation = "write"
-    config= "posix-sequential.yaml"
+    config = "posix-sequential.yaml"
     fields = 1
-    
+
 
 cbenchio_posix_sequential_read = make_read_test(cbenchio_posix_sequential_write)
 
-class cbenchio_posix_random_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O. """
+
+class cbenchio_posix_random_write(cbenchio_write, metaclass=Parameterize):
+    """Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O."""
+
     operation = "write"
-    config= "posix-random.yaml"
+    config = "posix-random.yaml"
     random_strided = True
     fields = 4
-    
+
+
 cbenchio_posix_random_read = make_read_test(cbenchio_posix_random_write)
 
 
-class cbenchio_mpi_1D_write(cbenchio_write,metaclass=Parameterize):
-    """ Ideal scaling of a 1D array with one task per node. This tests the ideal scaling of parallel writes to a single file. """
+class cbenchio_mpi_1D_write(cbenchio_write, metaclass=Parameterize):
+    """Ideal scaling of a 1D array with one task per node. This tests the ideal scaling of parallel writes to a single file."""
+
     operation = "write"
-    config= "mpi-1D.yaml"
+    config = "mpi-1D.yaml"
     file_per_process = False
     dimensions = 1
     fields = 4
     n_dimensions = 1
     stripe_size = 4194304
 
+
 cbenchio_mpi_1D_read = make_read_test(cbenchio_mpi_1D_write)
 
 
-class cbenchio_mpi_3D_write(cbenchio_write,metaclass=Parameterize):
-    """ Measure the bandwidth of the filesystem for a single file written by all processes in a 3D layout. """
+class cbenchio_mpi_3D_write(cbenchio_write, metaclass=Parameterize):
+    """Measure the bandwidth of the filesystem for a single file written by all processes in a 3D layout."""
+
     operation = "write"
-    config= "mpi-3D.yaml"
+    config = "mpi-3D.yaml"
     file_per_process = False
     dimensions = 3
     fields = 4
     n_dimensions = 3
     stripe_size = 4194304
 
+
 cbenchio_mpi_3D_read = make_read_test(cbenchio_mpi_3D_write)
diff --git a/tests/synth/mdtest/mdtest.py b/tests/synth/mdtest/mdtest.py
index 1459151b..501e832a 100644
--- a/tests/synth/mdtest/mdtest.py
+++ b/tests/synth/mdtest/mdtest.py
@@ -5,6 +5,7 @@
 import reframe.utility.sanity as sn
 from reframe.core.builtins import performance_function, run_before, sanity_function
 
+
 class Mdtest(rfm.RunOnlyRegressionTest):
     """Run mdtest with the same configuration as test-run/mdtest/submit.sh."""
 
@@ -21,20 +22,18 @@ class Mdtest(rfm.RunOnlyRegressionTest):
         "OMP_PLACES": "cores",
     }
 
-
     tags = {"performance", "io"}
 
-     # Set the number of tasks based on test parameters, defined in derived classes.
+    # Set the number of tasks based on test parameters, defined in derived classes.
     @run_after("init")
     def set_num_tasks(self):
         self.num_tasks = self.tasks_per_node * self.nodes
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = 288 // self.tasks_per_node
 
-        
     @run_before("run")
     def set_executable_opts(self):
-        
+
         opts = [
             "-F",
             "-C",
@@ -45,19 +44,17 @@ def set_executable_opts(self):
             "-N",
             str(self.num_tasks_per_node),
             "-d",
-            self.work_directory
+            self.work_directory,
         ]
 
         if self.multiple_directories:
             opts.append("-u")
 
-
         self.executable_opts = opts
 
     @run_before("run")
     def set_run_options(self):
-        """Set srun options for the job launcher.
-                """
+        """Set srun options for the job launcher."""
         self.job.launcher.options = ["--mem=0", "--hint=nomultithread", "--distribution=block:block"]
         self.postrun_cmds = [f"rm -rf {self.work_directory}"]
 
@@ -121,21 +118,25 @@ def tree_removal_mean(self):
             item=-1,
         )
 
+
 @rfm.simple_test
 class MdtestSingleNode(Mdtest):
     """Single node multiple directories mdtest test."""
+
     nodes = 1
     tasks_per_node = parameter([1, 8, 24, 96, 288])
-    
+
     num_cpus_per_task = 1
     time_limit = "20m"
     num_files_per_task = 1000
     multiple_directories = True
-    work_directory = parameter(["test_dir"])    
+    work_directory = parameter(["test_dir"])
+
 
 @rfm.simple_test
 class MdtestMultiNode(Mdtest):
     """Run mdtest multiple directories on multiple nodes."""
+
     nodes = parameter([2, 4, 8, 16])
     tasks_per_node = 288
     num_cpus_per_task = 1
diff --git a/tests/synth/mpi_osu/osu_benchmarks.py b/tests/synth/mpi_osu/osu_benchmarks.py
index 75774c2a..d8737515 100644
--- a/tests/synth/mpi_osu/osu_benchmarks.py
+++ b/tests/synth/mpi_osu/osu_benchmarks.py
@@ -155,7 +155,7 @@ class OSUAllreduceTest(OSUBenchmarkTestBase):
     descr = "OSU Allreduce test"
     mpi_tasks = parameter(1 << i for i in range(1, 5))
     osu_binaries = fixture(OSUBuild, scope="environment")
-    
+
     @run_after("init")
     def set_num_tasks(self):
         """Sets number of tasks"""
diff --git a/tests/utils/containers/containers.py b/tests/utils/containers/containers.py
index a4f5452e..937d08ba 100644
--- a/tests/utils/containers/containers.py
+++ b/tests/utils/containers/containers.py
@@ -160,7 +160,7 @@ class OSUContainerTestCirrusEX(rfm.RunOnlyRegressionTest):
     reference = {
         "cirrus-ex:compute": {"latency_big": (1100, -0.1, 0.30, "us"), "latency_small": (9.7, -0.1, 0.30, "us")}
     }
-    
+
     @require_deps
     def set_singularity_invoke(self):
         """Builds the command to be passed to srun"""

From 907eeae80d17486868afbd7fda62aa8329e8c685 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 14:51:20 +0100
Subject: [PATCH 15/38] style changes

---
 tests/apps/lammps/exaalt.py                 |  4 +---
 tests/synth/cbenchio/cbenchio.py            | 15 ++++++---------
 tests/synth/cbenchio/cbenchio_benchmarks.py | 10 ++++++----
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/tests/apps/lammps/exaalt.py b/tests/apps/lammps/exaalt.py
index fd34b749..90ae50bd 100644
--- a/tests/apps/lammps/exaalt.py
+++ b/tests/apps/lammps/exaalt.py
@@ -1,11 +1,9 @@
 """ReFrame script for lammps dipole test"""
 
-import os
-
 import reframe as rfm
 import reframe.utility.sanity as sn
 
-from lammps_base import BuildLAMMPS, LAMMPSBase
+from lammps_base import LAMMPSBase
 
 
 class LAMMPSBaseExaalt(LAMMPSBase):
diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index b9bd9be2..fbb0d532 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -3,16 +3,11 @@
 CBenchio Input/Output test
 """
 
-from fileinput import filename
 import os
-from tempfile import template
-import types
-from typing import List
 import yaml
 
 import reframe as rfm
 import reframe.utility.sanity as sn
-import numpy as np
 import reframe.core.builtins as builtins
 
 try:
@@ -20,7 +15,6 @@
 except ImportError:
     from yaml import Loader, Dumper
 
-from reframe.core.builtins import fixture
 import reframe.core.meta as meta
 
 
@@ -42,7 +36,8 @@ def get_config(filename: str) -> dict:
 
     """
 
-    filename = os.path.join(os.path.dirname(__file__), filename)  # Filename is relative to the location of this script
+    # Filename is relative to the location of this script
+    filename = os.path.join(os.path.dirname(__file__), filename)
 
     with open(filename, "r") as f:
         config = yaml.load(f, Loader=Loader)
@@ -51,7 +46,10 @@ def get_config(filename: str) -> dict:
 
 class Parameterize(meta.RegressionTestMeta):
     """Metaclass to parameterize a regression test based on a yaml configuration file.
-    The yaml file should contain a dictionary where each key is a parameter name and each value is a list of values for that parameter. The metaclass will turn these into parameters. This cannot be done in __init__() because the subsitution need to be done before the instance is created.
+    The yaml file should contain a dictionary where
+    each key is a parameter name and each value is a list of values for that parameter.
+    The metaclass will turn these into parameters.
+    This cannot be done in __init__() because the substitution needs to be done before the instance is created.
     """
 
     @classmethod
@@ -125,7 +123,6 @@ def set_default_parameter(self, param_name, default_value):
         """
         if not hasattr(self, param_name):
             setattr(self, param_name, default_value)
-        #
 
     def set_default_parameters(self):
         """Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised."""
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index e1a40f8d..7b7e5e00 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -1,6 +1,5 @@
-from cbenchio import cbenchio_write, Parameterize, cbenchio_read, make_read_test
+from cbenchio import cbenchio_write, Parameterize, make_read_test
 
-import reframe as rfm
 
 """ Cbenchio benchmarks
 
@@ -8,7 +7,9 @@
 
 ## Adding new tests
 
-Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. The class should have a config attribute pointing to a yaml file. The yaml file should contain the parameters for the test. For example:
+Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. 
+The class should have a config attribute pointing to a yaml file. 
+The yaml file should contain the parameters for the test. For example:
 
 ```python
 class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
@@ -16,7 +17,8 @@ class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
     config= "posix.yaml"
 ```
 
-Read tests can be generated from write tests using the make_read_test function. For example we can generate a read test from the write test above using:
+Read tests can be generated from write tests using the make_read_test function. 
+For instance we can generate a read test from the write test above using:
 
 ```python
 cbenchio_bandwidth_read = make_read_test(cbenchio_bandwidth_write)

From f50427a27d02036a2385da3eb98b1a41c4c4de6a Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 14:53:55 +0100
Subject: [PATCH 16/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index fbb0d532..ac5ca7a5 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -11,9 +11,9 @@
 import reframe.core.builtins as builtins
 
 try:
-    from yaml import CLoader as Loader, CDumper as Dumper
+    from yaml import CLoader as Loader
 except ImportError:
-    from yaml import Loader, Dumper
+    from yaml import Loader
 
 import reframe.core.meta as meta
 
@@ -31,8 +31,10 @@ def get_config(filename: str) -> dict:
     """Read parameters from a yaml file
 
     Args:
-        filename: The name of the yaml file containing the parameters. The file should be located in the same directory as this script.
-    Returns:        A dictionary containing the parameters read from the yaml file.
+        filename: The name of the yaml file containing the parameters.
+        The file should be located in the same directory as this script.
+    Returns:
+        A dictionary containing the parameters read from the yaml file.
 
     """
 

From f499b5a0b75e77f8236261c5251bffec962f6988 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 14:56:00 +0100
Subject: [PATCH 17/38] style changes

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 7b7e5e00..10052487 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -7,8 +7,8 @@
 
 ## Adding new tests
 
-Add a new test by inherting from cbenchio_write and using the Parameterize metaclass. 
-The class should have a config attribute pointing to a yaml file. 
+Add a new test by inherting from cbenchio_write and using the Parameterize metaclass.
+The class should have a config attribute pointing to a yaml file.
 The yaml file should contain the parameters for the test. For example:
 
 ```python
@@ -17,7 +17,7 @@ class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
     config= "posix.yaml"
 ```
 
-Read tests can be generated from write tests using the make_read_test function. 
+Read tests can be generated from write tests using the make_read_test function.
 For instance we can generate a read test from the write test above using:
 
 ```python

From c91180ff89bf26da0673bcebb9705364cab6d2c7 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 14:58:37 +0100
Subject: [PATCH 18/38] Added style changes to the benchmarks

---
 tests/synth/cbenchio/cbenchio.py            | 6 +++++-
 tests/synth/cbenchio/cbenchio_benchmarks.py | 4 +++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index ac5ca7a5..e7333b00 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -127,7 +127,11 @@ def set_default_parameter(self, param_name, default_value):
             setattr(self, param_name, default_value)
 
     def set_default_parameters(self):
-        """Set default values for parameters if they are not already set. This is needed as parameters are define at instance creation and will raise an error if the field is not defined, instead of overwriting. That means initialisation need to happen after the instance is initialised."""
+        """Set default values for parameters if they are not already set.
+          This is needed as parameters are define at instance creation and
+          will raise an error if the field is not defined, instead of overwriting.
+          That means initialisation need to happen after the instance is initialised.
+        """
 
         self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
         self.set_default_parameter("repeat", 8)
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 10052487..90399cc4 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -51,7 +51,9 @@ class cbenchio_posix_random_write(cbenchio_write, metaclass=Parameterize):
 
 
 class cbenchio_mpi_1D_write(cbenchio_write, metaclass=Parameterize):
-    """Ideal scaling of a 1D array with one task per node. This tests the ideal scaling of parallel writes to a single file."""
+    """Ideal scaling of a 1D array with one task per node.
+       This tests the ideal scaling of parallel writes to a single file.
+    """
 
     operation = "write"
     config = "mpi-1D.yaml"

From d67bf0da60ca5047b2426d6320dee1dce65bbad8 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 15:00:52 +0100
Subject: [PATCH 19/38] style changes

---
 tests/synth/cbenchio/cbenchio.py            | 6 +++---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index e7333b00..8d399dec 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -128,9 +128,9 @@ def set_default_parameter(self, param_name, default_value):
 
     def set_default_parameters(self):
         """Set default values for parameters if they are not already set.
-          This is needed as parameters are define at instance creation and
-          will raise an error if the field is not defined, instead of overwriting.
-          That means initialisation need to happen after the instance is initialised.
+        This is needed as parameters are define at instance creation and
+        will raise an error if the field is not defined, instead of overwriting.
+        That means initialisation need to happen after the instance is initialised.
         """
 
         self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 90399cc4..c5a40e2c 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -52,7 +52,7 @@ class cbenchio_posix_random_write(cbenchio_write, metaclass=Parameterize):
 
 class cbenchio_mpi_1D_write(cbenchio_write, metaclass=Parameterize):
     """Ideal scaling of a 1D array with one task per node.
-       This tests the ideal scaling of parallel writes to a single file.
+    This tests the ideal scaling of parallel writes to a single file.
     """
 
     operation = "write"

From f3606e598608b32106b553e1b61b7d576526ab53 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 15:06:39 +0100
Subject: [PATCH 20/38] Changing black target version

---
 pyproject.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyproject.toml b/pyproject.toml
index 82510636..70205333 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,6 +8,7 @@ license = {file = "LICENSE"}
 
 [tool.black]
 line-length = 120
+target-version = ["py311"]
 
 [tool.flake8]
 max-line-length = 120

From 09338b247759c2a72799e5db35bd941cad5ccf49 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 15:32:04 +0100
Subject: [PATCH 21/38] linting fixes

---
 tests/synth/cbenchio/cbenchio.py | 47 +++++++++++++++++---------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 8d399dec..e1b61a5d 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -8,24 +8,16 @@
 
 import reframe as rfm
 import reframe.utility.sanity as sn
-import reframe.core.builtins as builtins
+from reframe.core import builtins
 
 try:
     from yaml import CLoader as Loader
 except ImportError:
     from yaml import Loader
 
-import reframe.core.meta as meta
+from reframe.core import meta
 
 
-""" Cbenchio tests
-
-Used for I/O benchmarking.
-
-Base and meta classes for cbenchio benchmarks
-
-"""
-
 
 def get_config(filename: str) -> dict:
     """Read parameters from a yaml file
@@ -55,7 +47,7 @@ class Parameterize(meta.RegressionTestMeta):
     """
 
     @classmethod
-    def __prepare__(metacls, name, bases, **kwds):
+    def __prepare__(cls, name, bases):
         mapping = super().__prepare__(name, bases)
         return mapping
 
@@ -71,7 +63,8 @@ def __new__(cls, name, bases, namespace, *args, **kwds):
         return obj
 
 
-class cbenchio(rfm.RunOnlyRegressionTest):
+class Cbenchio(rfm.RunOnlyRegressionTest):
+    """Base class for cbenchio tests."""
 
     tags = {"performance", "io"}
 
@@ -81,8 +74,6 @@ class cbenchio(rfm.RunOnlyRegressionTest):
     config = None
     modules = ["cbenchio-gcc"]
 
-    def __init__(self):
-        super().__init__()
 
     executable = "benchio"
     executable_opts = ["config.yaml"]
@@ -97,10 +88,13 @@ def write_config(self, config):
 
     @sanity_function
     def completed(self):
+        """Check that the test completed successfully."""
+
         return sn.assert_found(r"Done", self.stdout) and sn.assert_true(os.path.exists("report.yaml"))
 
     @run_before("performance")
     def extract_bandwidth(self):
+        """Extract the bandwidth from the cbenchio yaml report."""
 
         report_file = os.path.join(self.stagedir, "report.yaml")
         with open(report_file, "r") as file:
@@ -116,7 +110,9 @@ def extract_bandwidth(self):
             )
 
 
-class cbenchio_write(cbenchio):
+class CbenchioWrite(Cbenchio):
+    """Class for cbenchio write tests."""
+
 
     def set_default_parameter(self, param_name, default_value):
         """Set a default value for a parameter if it is not already set.
@@ -142,7 +138,8 @@ def set_default_parameters(self):
         self.set_default_parameter("fields", 1)
         self.set_default_parameter("n_dimensions", 1)
         self.set_default_parameter("decomposition", "slab")
-
+        self.set_default_parameter("path", None)
+        
     def create_write_directories(self):
         """If writing data, create the target directory."""
 
@@ -154,14 +151,18 @@ def create_write_directories(self):
         if self.stripes == "num_nodes":
             self.stripes = self.nodes
 
-        if self.stripes != 1:  # Only valid on Lustre filesystem
-            self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
+        if hasattr(self, "stripes"):
+            if self.stripes != 1:  # Only valid on Lustre filesystem
+                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
+        
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up
 
     @run_before("run")
     def init_parameters(self):
+        """Initialise the parameters"""
+        
         self.num_tasks = self.nodes * self.tasks_per_node
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
@@ -221,10 +222,12 @@ def generate_config(self):
         return config
 
 
-class cbenchio_read(cbenchio):
+class CbenchioRead(Cbenchio):
 
     @run_before("run")
     def set_read_parameters(self):
+        "" "Set the parameters for the read test based on the write test."""
+
         cbenchio_config = self.write_test.cbenchio_config
 
         # Create mirror read operation
@@ -255,15 +258,15 @@ def cleanup_written_files(self):
 def make_read_test(cls):
 
     # check that the class contains write
-    if cls.__name__.find("write") == -1:
-        raise ValueError("The class passed to make_read_test must contain 'write' in its name")
+    if cls.__name__.find("Write") == -1:
+        raise ValueError("The class passed to make_read_test must contain 'Write' in its name")
 
     fixture = rfm.core.builtins.fixture(cls, scope="environment")
     module = fixture.cls.__module__
     return rfm.simple_test(
         rfm.core.meta.make_test(
             cls.__name__.replace("write", "read"),
-            (cbenchio_read,),
+            (CbenchioRead,),
             {
                 "operation": "read",
                 "write_test": fixture,

From 11eb2506ed2b7e96438a4df7bc40d9184cfcf31d Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:25:14 +0100
Subject: [PATCH 22/38] style update

---
 tests/synth/cbenchio/cbenchio.py            | 44 +++++--------------
 tests/synth/cbenchio/cbenchio_benchmarks.py | 47 ++++++++++++++++-----
 2 files changed, 46 insertions(+), 45 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index e1b61a5d..1c0cfe07 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -18,7 +18,6 @@
 from reframe.core import meta
 
 
-
 def get_config(filename: str) -> dict:
     """Read parameters from a yaml file
 
@@ -38,30 +37,6 @@ def get_config(filename: str) -> dict:
     return config
 
 
-class Parameterize(meta.RegressionTestMeta):
-    """Metaclass to parameterize a regression test based on a yaml configuration file.
-    The yaml file should contain a dictionary where
-    each key is a parameter name and each value is a list of values for that parameter.
-    The metaclass will turn these into parameters.
-    This cannot be done in __init__() because the substitution needs to be done before the instance is created.
-    """
-
-    @classmethod
-    def __prepare__(cls, name, bases):
-        mapping = super().__prepare__(name, bases)
-        return mapping
-
-    def __new__(cls, name, bases, namespace, *args, **kwds):
-
-        # Turn all labels in the yaml configuration
-        config = get_config(namespace["config"])
-        for parameter_name, parameter_values in config.items():
-
-            namespace[parameter_name] = builtins.parameter(parameter_values)
-
-        obj = super().__new__(cls, name, bases, namespace, *args, **kwds)
-        return obj
-
 
 class Cbenchio(rfm.RunOnlyRegressionTest):
     """Base class for cbenchio tests."""
@@ -74,7 +49,6 @@ class Cbenchio(rfm.RunOnlyRegressionTest):
     config = None
     modules = ["cbenchio-gcc"]
 
-
     executable = "benchio"
     executable_opts = ["config.yaml"]
 
@@ -113,7 +87,6 @@ def extract_bandwidth(self):
 class CbenchioWrite(Cbenchio):
     """Class for cbenchio write tests."""
 
-
     def set_default_parameter(self, param_name, default_value):
         """Set a default value for a parameter if it is not already set.
 
@@ -139,7 +112,7 @@ def set_default_parameters(self):
         self.set_default_parameter("n_dimensions", 1)
         self.set_default_parameter("decomposition", "slab")
         self.set_default_parameter("path", None)
-        
+
     def create_write_directories(self):
         """If writing data, create the target directory."""
 
@@ -153,8 +126,10 @@ def create_write_directories(self):
 
         if hasattr(self, "stripes"):
             if self.stripes != 1:  # Only valid on Lustre filesystem
-                self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
-        
+                self.prerun_cmds.append(
+                    f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}"
+                )
+
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up
@@ -162,7 +137,7 @@ def create_write_directories(self):
     @run_before("run")
     def init_parameters(self):
         """Initialise the parameters"""
-        
+
         self.num_tasks = self.nodes * self.tasks_per_node
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
@@ -226,7 +201,7 @@ class CbenchioRead(Cbenchio):
 
     @run_before("run")
     def set_read_parameters(self):
-        "" "Set the parameters for the read test based on the write test."""
+        "" "Set the parameters for the read test based on the write test." ""
 
         cbenchio_config = self.write_test.cbenchio_config
 
@@ -256,7 +231,8 @@ def cleanup_written_files(self):
 
 
 def make_read_test(cls):
-
+    """Create a read test based on a write test class."""
+    
     # check that the class contains write
     if cls.__name__.find("Write") == -1:
         raise ValueError("The class passed to make_read_test must contain 'Write' in its name")
@@ -265,7 +241,7 @@ def make_read_test(cls):
     module = fixture.cls.__module__
     return rfm.simple_test(
         rfm.core.meta.make_test(
-            cls.__name__.replace("write", "read"),
+            cls.__name__.replace("Write", "Read"),
             (CbenchioRead,),
             {
                 "operation": "read",
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index c5a40e2c..ce8ad07f 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -1,4 +1,5 @@
-from cbenchio import cbenchio_write, Parameterize, make_read_test
+from cbenchio import CbenchioWrite, make_read_test
+import reframe as rfm
 
 
 """ Cbenchio benchmarks
@@ -27,18 +28,23 @@ class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
 """
 
 
-class cbenchio_posix_sequential_write(cbenchio_write, metaclass=Parameterize):
+class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""
 
     operation = "write"
-    config = "posix-sequential.yaml"
     fields = 1
+    nodes = parameter([1, 4, 8])
+    tasks_per_node = parameter([288])
+    base_path = parameter(["base_path"])
+    chunk_size = parameter([1048576])
+    field_size_per_process_per_dimension = parameter([1073741824])
+    api = "posix"
 
 
-cbenchio_posix_sequential_read = make_read_test(cbenchio_posix_sequential_write)
+CbenchioPosixSequentialRead = make_read_test(CbenchioPosixSequentialWrite)
 
 
-class cbenchio_posix_random_write(cbenchio_write, metaclass=Parameterize):
+class CbenchioPosixRandomWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O."""
 
     operation = "write"
@@ -46,28 +52,41 @@ class cbenchio_posix_random_write(cbenchio_write, metaclass=Parameterize):
     random_strided = True
     fields = 4
 
+    nodes = parameter([1, 4, 8])
+    tasks_per_node = parameter([288])
+    base_path = parameter(["/work/z19/shared/io_benchmarks"])
+    api = "posix"
+    chunk_size = parameter([4096])
+    field_size_per_process_per_dimension = parameter([65536])
 
-cbenchio_posix_random_read = make_read_test(cbenchio_posix_random_write)
 
+CbenchioPosixRandomRead = make_read_test(CbenchioPosixRandomWrite)
 
-class cbenchio_mpi_1D_write(cbenchio_write, metaclass=Parameterize):
+
+class CbenchioMpi1DWrite(CbenchioWrite):
     """Ideal scaling of a 1D array with one task per node.
     This tests the ideal scaling of parallel writes to a single file.
     """
 
     operation = "write"
-    config = "mpi-1D.yaml"
     file_per_process = False
     dimensions = 1
     fields = 4
     n_dimensions = 1
     stripe_size = 4194304
 
+    nodes = parameter([1, 4, 8])
+    tasks_per_node = parameter([1])
+    base_path = parameter(["/work/z19/shared/io_benchmarks"])
+    api = "mpi"
+    stripes = parameter(["num_nodes"])
+    field_size_per_process_per_dimension = parameter([1073741824])
+
 
-cbenchio_mpi_1D_read = make_read_test(cbenchio_mpi_1D_write)
+CbenchioMpi1DRead = make_read_test(CbenchioMpi1DWrite)
 
 
-class cbenchio_mpi_3D_write(cbenchio_write, metaclass=Parameterize):
+class CbenchioMpi3DWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for a single file written by all processes in a 3D layout."""
 
     operation = "write"
@@ -77,6 +96,12 @@ class cbenchio_mpi_3D_write(cbenchio_write, metaclass=Parameterize):
     fields = 4
     n_dimensions = 3
     stripe_size = 4194304
+    nodes = parameter([1, 4, 8])
+    tasks_per_node = parameter([288])
+    base_path = parameter(["/work/z19/shared/io_benchmarks"])
+    api = "mpi"
+    stripes = parameter([-1])
+    field_size_per_process_per_dimension = parameter([1024])
 
 
-cbenchio_mpi_3D_read = make_read_test(cbenchio_mpi_3D_write)
+CbenchioMpi3DRead = make_read_test(CbenchioMpi3DWrite)

From c9c37524f42090cee72c0c528331a87c7500d451 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:39:55 +0100
Subject: [PATCH 23/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 1c0cfe07..295d623d 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -37,7 +37,6 @@ def get_config(filename: str) -> dict:
     return config
 
 
-
 class Cbenchio(rfm.RunOnlyRegressionTest):
     """Base class for cbenchio tests."""
 
@@ -51,6 +50,8 @@ class Cbenchio(rfm.RunOnlyRegressionTest):
 
     executable = "benchio"
     executable_opts = ["config.yaml"]
+    path = None
+    cbenchio_config = None
 
     def write_config(self, config):
         """Write the configuration for cbenchio to a yaml file."""
@@ -105,13 +106,13 @@ def set_default_parameters(self):
         self.set_default_parameter("field_size_per_process_per_dimension", 1048576)
         self.set_default_parameter("repeat", 8)
         self.set_default_parameter("stripe_size", 1048576)
-        self.set_default_parameter("stripes", 1)
         self.set_default_parameter("random_strided", False)
         self.set_default_parameter("file_per_process", True)
         self.set_default_parameter("fields", 1)
         self.set_default_parameter("n_dimensions", 1)
         self.set_default_parameter("decomposition", "slab")
         self.set_default_parameter("path", None)
+        self.set_default_parameter("stripes", 1)
 
     def create_write_directories(self):
         """If writing data, create the target directory."""
@@ -124,11 +125,8 @@ def create_write_directories(self):
         if self.stripes == "num_nodes":
             self.stripes = self.nodes
 
-        if hasattr(self, "stripes"):
-            if self.stripes != 1:  # Only valid on Lustre filesystem
-                self.prerun_cmds.append(
-                    f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}"
-                )
+        if self.stripes != 1:  # Only valid on Lustre filesystem
+            self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
 
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
@@ -138,11 +136,12 @@ def create_write_directories(self):
     def init_parameters(self):
         """Initialise the parameters"""
 
+        self.set_default_parameters()  # Set default values for parameters if they are not already set.
+
         self.num_tasks = self.nodes * self.tasks_per_node
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = self.current_partition.processor.num_cpus // self.num_tasks_per_node
         self.path = os.path.join(self.base_path, f"{self.short_name}")
-        self.set_default_parameters()  # Set default values for parameters if they are not already set.
         self.cbenchio_config = self.generate_config()  # Generate the parameters for cbenchio executable
         self.write_config(self.cbenchio_config)
         self.create_write_directories()
@@ -198,6 +197,7 @@ def generate_config(self):
 
 
 class CbenchioRead(Cbenchio):
+    """Class for cbenchio read tests."""
 
     @run_before("run")
     def set_read_parameters(self):
@@ -232,7 +232,7 @@ def cleanup_written_files(self):
 
 def make_read_test(cls):
     """Create a read test based on a write test class."""
-    
+
     # check that the class contains write
     if cls.__name__.find("Write") == -1:
         raise ValueError("The class passed to make_read_test must contain 'Write' in its name")

From 2ad01e7a60d4be985639e73afe6ec50850426b45 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:48:17 +0100
Subject: [PATCH 24/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 295d623d..6129eb4b 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -8,14 +8,12 @@
 
 import reframe as rfm
 import reframe.utility.sanity as sn
-from reframe.core import builtins
 
 try:
     from yaml import CLoader as Loader
 except ImportError:
     from yaml import Loader
 
-from reframe.core import meta
 
 
 def get_config(filename: str) -> dict:
@@ -36,7 +34,6 @@ def get_config(filename: str) -> dict:
         config = yaml.load(f, Loader=Loader)
     return config
 
-
 class Cbenchio(rfm.RunOnlyRegressionTest):
     """Base class for cbenchio tests."""
 
@@ -122,6 +119,7 @@ def create_write_directories(self):
         self.prerun_cmds.append(f"rm -rf {self.path}")  # Cleaun up any previously written data
         self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
+        # pylint: disable=access-member-before-definition
         if self.stripes == "num_nodes":
             self.stripes = self.nodes
 
@@ -224,9 +222,8 @@ def cleanup_written_files(self):
         """
         # Remove the directory in path once we are done reading them.
 
-        try:
-            os.system(f"rm -rf {self.path}")
-        except Exception as e:
+        result=os.system(f"rm -rf {self.path}")
+        if result != 0:
             print(f"Warning: Failed to clean up directory {self.path}: {e}")
 
 

From cc9fbcbf843c6608501a2eb57658bdd020c213c8 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:50:01 +0100
Subject: [PATCH 25/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 6129eb4b..f68f74cd 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -120,12 +120,17 @@ def create_write_directories(self):
         self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
         # pylint: disable=access-member-before-definition
+        # pylint: disable=attribute-defined-outside-init
+
         if self.stripes == "num_nodes":
             self.stripes = self.nodes
 
         if self.stripes != 1:  # Only valid on Lustre filesystem
             self.prerun_cmds.append(f"lfs setstripe -C {self.stripes} -S {int(self.stripe_size/2**10)}K {self.path}")
 
+        # pylint: enable=access-member-before-definition
+        # pylint: enable=attribute-defined-outside-init
+                
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up

From 90bc85c1573cf603e3feeddfc611bbf3d3ebe489 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:54:21 +0100
Subject: [PATCH 26/38] style changes

---
 tests/synth/cbenchio/cbenchio.py            | 11 ++++++-----
 tests/synth/cbenchio/cbenchio_benchmarks.py |  8 +++-----
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index f68f74cd..52b9881d 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -15,7 +15,6 @@
     from yaml import Loader
 
 
-
 def get_config(filename: str) -> dict:
     """Read parameters from a yaml file
 
@@ -34,6 +33,7 @@ def get_config(filename: str) -> dict:
         config = yaml.load(f, Loader=Loader)
     return config
 
+
 class Cbenchio(rfm.RunOnlyRegressionTest):
     """Base class for cbenchio tests."""
 
@@ -130,7 +130,7 @@ def create_write_directories(self):
 
         # pylint: enable=access-member-before-definition
         # pylint: enable=attribute-defined-outside-init
-                
+
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up
@@ -227,9 +227,9 @@ def cleanup_written_files(self):
         """
         # Remove the directory in path once we are done reading them.
 
-        result=os.system(f"rm -rf {self.path}")
+        result = os.system(f"rm -rf {self.path}")
         if result != 0:
-            print(f"Warning: Failed to clean up directory {self.path}: {e}")
+            print(f"Warning: Failed to clean up directory {self.path}. Return error code: {result}")
 
 
 def make_read_test(cls):
@@ -238,8 +238,9 @@ def make_read_test(cls):
     # check that the class contains write
     if cls.__name__.find("Write") == -1:
         raise ValueError("The class passed to make_read_test must contain 'Write' in its name")
-
+    # pylint: disable=no-member
     fixture = rfm.core.builtins.fixture(cls, scope="environment")
+    # pylint: enable=no-member
     module = fixture.cls.__module__
     return rfm.simple_test(
         rfm.core.meta.make_test(
diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index ce8ad07f..704e29dc 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -1,8 +1,4 @@
-from cbenchio import CbenchioWrite, make_read_test
-import reframe as rfm
-
-
-""" Cbenchio benchmarks
+"""Cbenchio benchmarks
 
 Contains I/O benchmarks based on cbenchio.
 
@@ -27,6 +23,8 @@ class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
 
 """
 
+from cbenchio import CbenchioWrite, make_read_test
+
 
 class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""

From 78f4c7dfae93919b220509e371af2fb1957eeb10 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 17:58:56 +0100
Subject: [PATCH 27/38] style changes

---
 tests/apps/lammps/exaalt.py                  | 1 +
 tests/apps/openfoam/openfoam_org_cavity3d.py | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/apps/lammps/exaalt.py b/tests/apps/lammps/exaalt.py
index 90ae50bd..ff9b8b7e 100644
--- a/tests/apps/lammps/exaalt.py
+++ b/tests/apps/lammps/exaalt.py
@@ -77,6 +77,7 @@ class LAMMPSExaaltSmall(LAMMPSBaseExaalt):
 
 @rfm.simple_test
 class LAMMPSExaaltRef(LAMMPSBaseExaalt):
+    """ReFrame LAMMPS largescale test based on NERSC-10 Exaalt benchmark"""
 
     valid_systems = ["archer2:compute", "cirrus-ex:compute"]
 
diff --git a/tests/apps/openfoam/openfoam_org_cavity3d.py b/tests/apps/openfoam/openfoam_org_cavity3d.py
index 061c90d6..5d4a0084 100644
--- a/tests/apps/openfoam/openfoam_org_cavity3d.py
+++ b/tests/apps/openfoam/openfoam_org_cavity3d.py
@@ -16,6 +16,7 @@ class OpenFOAMCavity3DBase(OpenFOAMBase):
 
     @run_before("run")
     def setup_tasks(self):
+        """Set up the number of tasks and tasks per node for the test."""
         self.num_tasks_per_node = self.current_partition.processor.num_cpus
         self.num_tasks = self.num_nodes * self.num_tasks_per_node
 
@@ -61,4 +62,4 @@ class OpenFOAMCavity3D4Node(OpenFOAMCavity3DBase):
     executable = "icoFoam"
     executable_opts = ["-parallel", "-fileHandler", "collated"]
 
-    reference_performance_cirrus_ex = (78, -0.2, 0.1, "seconds")
+    reference_performance_cirrus_ex = (78, -0.2, 0.05, "seconds")

From dca05dd35175a59d681c1df4d4dbc906675371fe Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 18:01:40 +0100
Subject: [PATCH 28/38] style changes

---
 tests/synth/mdtest/mdtest.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/synth/mdtest/mdtest.py b/tests/synth/mdtest/mdtest.py
index 501e832a..cee3f6a0 100644
--- a/tests/synth/mdtest/mdtest.py
+++ b/tests/synth/mdtest/mdtest.py
@@ -27,12 +27,15 @@ class Mdtest(rfm.RunOnlyRegressionTest):
     # Set the number of tasks based on test parameters, defined in derived classes.
     @run_after("init")
     def set_num_tasks(self):
+        """Set the number of tasks based on test parameters."""
+
         self.num_tasks = self.tasks_per_node * self.nodes
         self.num_tasks_per_node = self.tasks_per_node
         self.num_cpus_per_task = 288 // self.tasks_per_node
 
     @run_before("run")
     def set_executable_opts(self):
+        """Set the executable options for mdtest based on test parameters."""
 
         opts = [
             "-F",

From 49d66a3e5469c8486b4c0bb08e54c257a23c8bd0 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 18:05:41 +0100
Subject: [PATCH 29/38] style changes

---
 tests/apps/vasp/vasp.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tests/apps/vasp/vasp.py b/tests/apps/vasp/vasp.py
index 1bd9e6a4..4efd9213 100644
--- a/tests/apps/vasp/vasp.py
+++ b/tests/apps/vasp/vasp.py
@@ -5,9 +5,6 @@
 import reframe.utility.sanity as sn
 
 
-VASP_BENCHMARK_DIR = "/work/z19/z19/lparisi/2026-06_NCR-expansion-9Jul2026/VASP/CdTe/6.5.1_GCC13_LibSci-OFI"
-
-
 @rfm.simple_test
 class VASPCdTeCheck(rfm.RunOnlyRegressionTest):
     """VASP CdTe correctness and performance check."""

From bc638f4b450c462aa00a8f302bbe679feb45af46 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 18:10:32 +0100
Subject: [PATCH 30/38] Added explaination for linting exceptions

---
 tests/synth/cbenchio/cbenchio.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 52b9881d..38a5f4b2 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -119,6 +119,7 @@ def create_write_directories(self):
         self.prerun_cmds.append(f"rm -rf {self.path}")  # Cleaun up any previously written data
         self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
+        # pylint complain about stripes but not for the other similarly parameters, so we disable the warning while we use stripes in this function.
         # pylint: disable=access-member-before-definition
         # pylint: disable=attribute-defined-outside-init
 
@@ -130,7 +131,7 @@ def create_write_directories(self):
 
         # pylint: enable=access-member-before-definition
         # pylint: enable=attribute-defined-outside-init
-
+        
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up
@@ -238,6 +239,7 @@ def make_read_test(cls):
     # check that the class contains write
     if cls.__name__.find("Write") == -1:
         raise ValueError("The class passed to make_read_test must contain 'Write' in its name")
+    # The fixture confuses pylint, so we disable the warning for the next line.
     # pylint: disable=no-member
     fixture = rfm.core.builtins.fixture(cls, scope="environment")
     # pylint: enable=no-member

From 2d98fdea457895623954d9043262096819c662ed Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 18:12:51 +0100
Subject: [PATCH 31/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 38a5f4b2..6c22f688 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -119,7 +119,9 @@ def create_write_directories(self):
         self.prerun_cmds.append(f"rm -rf {self.path}")  # Cleaun up any previously written data
         self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
-        # pylint complain about stripes but not for the other similarly parameters, so we disable the warning while we use stripes in this function.
+        # pylint complain about stripes but not 
+        # for the other similarly parameters, so we disable the
+        # warning while we use stripes in this function.
         # pylint: disable=access-member-before-definition
         # pylint: disable=attribute-defined-outside-init
 
@@ -131,7 +133,7 @@ def create_write_directories(self):
 
         # pylint: enable=access-member-before-definition
         # pylint: enable=attribute-defined-outside-init
-        
+
         self.prerun_cmds.append(
             f"chmod -R o+wXr {self.path}"
         )  # Allow anyone to delete the data from the benchmarks if not properly cleaned up

From 193179888707f946bf1f85ca3ee1097f5b34f28a Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Mon, 10 Aug 2026 18:14:46 +0100
Subject: [PATCH 32/38] style changes

---
 tests/synth/cbenchio/cbenchio.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/synth/cbenchio/cbenchio.py b/tests/synth/cbenchio/cbenchio.py
index 6c22f688..fdd01c90 100644
--- a/tests/synth/cbenchio/cbenchio.py
+++ b/tests/synth/cbenchio/cbenchio.py
@@ -119,7 +119,7 @@ def create_write_directories(self):
         self.prerun_cmds.append(f"rm -rf {self.path}")  # Cleaun up any previously written data
         self.prerun_cmds.append(f"mkdir -p {self.path}")  # Create the directory where to write the data
 
-        # pylint complain about stripes but not 
+        # pylint complain about stripes but not
         # for the other similarly parameters, so we disable the
         # warning while we use stripes in this function.
         # pylint: disable=access-member-before-definition

From a799a97a877176b27c270f0fa3bdf64ca7d81aa9 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 10:32:59 +0100
Subject: [PATCH 33/38] Removed references to the yaml files, now obsolete

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 21 ---------------------
 tests/synth/cbenchio/mpi-1D.yaml            |  6 ------
 tests/synth/cbenchio/mpi-3D.yaml            |  6 ------
 tests/synth/cbenchio/posix-random.yaml      |  6 ------
 tests/synth/cbenchio/posix-sequential.yaml  |  6 ------
 5 files changed, 45 deletions(-)
 delete mode 100644 tests/synth/cbenchio/mpi-1D.yaml
 delete mode 100644 tests/synth/cbenchio/mpi-3D.yaml
 delete mode 100644 tests/synth/cbenchio/posix-random.yaml
 delete mode 100644 tests/synth/cbenchio/posix-sequential.yaml

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 704e29dc..da63857f 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -2,25 +2,6 @@
 
 Contains I/O benchmarks based on cbenchio.
 
-## Adding new tests
-
-Add a new test by inherting from cbenchio_write and using the Parameterize metaclass.
-The class should have a config attribute pointing to a yaml file.
-The yaml file should contain the parameters for the test. For example:
-
-```python
-class cbenchio_bandwidth_write(cbenchio_write,metaclass=Parameterize):
-    operation = "write"
-    config= "posix.yaml"
-```
-
-Read tests can be generated from write tests using the make_read_test function.
-For instance we can generate a read test from the write test above using:
-
-```python
-cbenchio_bandwidth_read = make_read_test(cbenchio_bandwidth_write)
-```
-
 """
 
 from cbenchio import CbenchioWrite, make_read_test
@@ -46,7 +27,6 @@ class CbenchioPosixRandomWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns random 4KiB I/O."""
 
     operation = "write"
-    config = "posix-random.yaml"
     random_strided = True
     fields = 4
 
@@ -88,7 +68,6 @@ class CbenchioMpi3DWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for a single file written by all processes in a 3D layout."""
 
     operation = "write"
-    config = "mpi-3D.yaml"
     file_per_process = False
     dimensions = 3
     fields = 4
diff --git a/tests/synth/cbenchio/mpi-1D.yaml b/tests/synth/cbenchio/mpi-1D.yaml
deleted file mode 100644
index abca21db..00000000
--- a/tests/synth/cbenchio/mpi-1D.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-nodes: [ 1, 4, 8 ]
-tasks_per_node: [ 1 ]
-base_path: ["/work/z19/shared/io_benchmarks"]
-api: ["mpi"]
-stripes: [ "num_nodes" ]
-field_size_per_process_per_dimension: [ 1073741824 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/mpi-3D.yaml b/tests/synth/cbenchio/mpi-3D.yaml
deleted file mode 100644
index 0d89e923..00000000
--- a/tests/synth/cbenchio/mpi-3D.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-nodes: [1, 4, 8]
-tasks_per_node: [288]
-base_path: ["/work/z19/shared/io_benchmarks"]
-api: ["mpi"]
-stripes: [ -1 ]
-field_size_per_process_per_dimension: [ 1024 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-random.yaml b/tests/synth/cbenchio/posix-random.yaml
deleted file mode 100644
index b097dcea..00000000
--- a/tests/synth/cbenchio/posix-random.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-nodes: [ 1, 4 , 8 ]
-tasks_per_node: [ 288 ]
-base_path: ["/work/z19/shared/io_benchmarks" ]
-api: ["posix"]
-chunk_size: [ 4096 ]
-field_size_per_process_per_dimension: [  65536 ]
\ No newline at end of file
diff --git a/tests/synth/cbenchio/posix-sequential.yaml b/tests/synth/cbenchio/posix-sequential.yaml
deleted file mode 100644
index cf7aa048..00000000
--- a/tests/synth/cbenchio/posix-sequential.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-nodes: [ 1,4, 8 ]
-tasks_per_node: [ 288 ]
-base_path: ["/work/z19/shared/io_benchmarks"]
-api: ["posix"]
-chunk_size: [ 4194304 ]
-field_size_per_process_per_dimension: [  536870912 ]
\ No newline at end of file

From ab933a7d08ae1fb51db160210a4acaa1882ed1af Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 11:45:13 +0100
Subject: [PATCH 34/38] fixed bug cbenchio tests ignored

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index da63857f..0a19b698 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -5,7 +5,7 @@
 """
 
 from cbenchio import CbenchioWrite, make_read_test
-
+import reframe as rfm
 
 class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""

From 417af9bc341820eb374cba4fcbd18fa12aef60bd Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 12:04:36 +0100
Subject: [PATCH 35/38] style changes

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 0a19b698..f5d11de2 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -5,7 +5,11 @@
 """
 
 from cbenchio import CbenchioWrite, make_read_test
-import reframe as rfm
+# Needs to import reframe so that the test runner can find the test classes, even if they are not used directly in this file.
+#pylint: disable=unused-import
+import reframe as rfm 
+#pylint: enable=unused-import
+
 
 class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""

From 1b56266d5286e6aa561910ac99061bdf0a327cda Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 12:05:55 +0100
Subject: [PATCH 36/38] style changes

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index f5d11de2..99f27d88 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -5,10 +5,13 @@
 """
 
 from cbenchio import CbenchioWrite, make_read_test
-# Needs to import reframe so that the test runner can find the test classes, even if they are not used directly in this file.
-#pylint: disable=unused-import
-import reframe as rfm 
-#pylint: enable=unused-import
+
+# Needs to import reframe so that the test runner can find the test classes,
+# even if they are not used directly in this file.
+# pylint: disable=unused-import
+import reframe as rfm
+
+# pylint: enable=unused-import
 
 
 class CbenchioPosixSequentialWrite(CbenchioWrite):

From bf392857805471c85b62d7933b8340635245ec83 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 12:12:16 +0100
Subject: [PATCH 37/38] style changes

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 99f27d88..028aa592 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -9,11 +9,10 @@
 # Needs to import reframe so that the test runner can find the test classes,
 # even if they are not used directly in this file.
 # pylint: disable=unused-import
+# flake8: noqa: F401
 import reframe as rfm
 
 # pylint: enable=unused-import
-
-
 class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""
 

From f8b3a41b984d104370dee86426ab8fecc7316302 Mon Sep 17 00:00:00 2001
From: lparisi <l.parisi@epcc.ed.ac.uk>
Date: Tue, 11 Aug 2026 12:13:50 +0100
Subject: [PATCH 38/38] style changes

---
 tests/synth/cbenchio/cbenchio_benchmarks.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/synth/cbenchio/cbenchio_benchmarks.py b/tests/synth/cbenchio/cbenchio_benchmarks.py
index 028aa592..805c8520 100644
--- a/tests/synth/cbenchio/cbenchio_benchmarks.py
+++ b/tests/synth/cbenchio/cbenchio_benchmarks.py
@@ -12,6 +12,7 @@
 # flake8: noqa: F401
 import reframe as rfm
 
+
 # pylint: enable=unused-import
 class CbenchioPosixSequentialWrite(CbenchioWrite):
     """Measure the bandwidth of the filesystem for file per process patterns for large sequential I/O."""