Dev Builds » 20210108-1535

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NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.


Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN


Commit ID 23c385ec36f9d5a9514ec5b0811ec99d08b45e90
Author MaximMolchanov
Date 2021-01-08 15:35:44 UTC
Affine transform refactoring. Reordered weights in such a way that accumulated sum fits to output. Weights are grouped in blocks of four elements because four int8 (weight type) corresponds to one int32 (output type). No horizontal additions. Grouped AVX512, AVX2 and SSSE3 implementations. Repeated code was removed. An earlier version passed STC: LLR: 2.97 (-2.94,2.94) {-0.25,1.25} Total: 15336 W: 1495 L: 1355 D: 12486 Ptnml(0-2): 44, 1054, 5350, 1158, 62 Speedup depends on the architecture, up to 4% measured on a NNUE only bench. closes No functional change
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