Split L1 double dpbusd accumulators in NNUE forward pass for AVX-512 VNNI - #1119
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…VNNI VSTC Elo | 4.48 +- 2.74 (95%) SPRT | 4.0+0.04s Threads=1 Hash=16MB LLR | 2.99 (-2.25, 2.89) [0.00, 3.00] Games | N: 17216 W: 4620 L: 4398 D: 8198 Penta | [110, 1832, 4521, 2016, 129] https://recklesschess.space/test/15620/ Bench: 2569707
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VSTC
Elo | 4.48 +- 2.74 (95%)
SPRT | 4.0+0.04s Threads=1 Hash=16MB
LLR | 2.99 (-2.25, 2.89) [0.00, 3.00]
Games | N: 17216 W: 4620 L: 4398 D: 8198
Penta | [110, 1832, 4521, 2016, 129]
https://recklesschess.space/test/15620/
Bench: 2569707