Dev Builds » 20200617-0532

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

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

Commit ID 1ea488d34c0b6a03fa3d89d289fe72fd1408cafd
Author mstembera
Date 2020-06-17 05:32:16 UTC
Use 128 bit multiply for TT index Remove super cluster stuff from TT and just use a 128 bit multiply. STC https://tests.stockfishchess.org/tests/view/5ee719b3aae8aec816ab7548 LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 12736 W: 2502 L: 2333 D: 7901 Ptnml(0-2): 191, 1452, 2944, 1559, 222 LTC https://tests.stockfishchess.org/tests/view/5ee732d1aae8aec816ab7556 LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 27584 W: 3431 L: 3350 D: 20803 Ptnml(0-2): 173, 2500, 8400, 2511, 208 Scheme back to being derived from https://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/ Also the default optimized version of the index calculation now uses fewer instructions. https://godbolt.org/z/Tktxbv Might benefit from mulx (requires -mbmi2) closes https://github.com/official-stockfish/Stockfish/pull/2744 bench: 4320954
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