Dev Builds » 20210108-1535

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:22:44 1971001 3348 2637 18 693 +365.21 +/- 12.92
ncm-et-4 08:22:59 1962369 3326 2703 7 616 +392.16 +/- 13.7
ncm-et-9 08:23:00 1968071 3342 2686 16 640 +380.66 +/- 13.45
ncm-et-10 08:22:58 1961616 3320 2636 20 664 +370.37 +/- 13.21
ncm-et-13 08:22:58 1960181 3318 2626 20 672 +368.05 +/- 13.13
ncm-et-15 08:22:54 1968751 3346 2653 20 673 +369.42 +/- 13.12
20000 15941 101 3958 +374.11 +/- 5.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
142110 ncm-et-13 2021-01-10 01:01 00:48:10 1961227 318 260 0 58 +399.39 +/- 45.24
142109 ncm-et-10 2021-01-10 01:00 00:48:47 1962159 320 254 5 61 +361.54 +/- 44.23
142108 ncm-et-4 2021-01-10 01:00 00:49:30 1965400 326 265 2 59 +388.31 +/- 45.03
142107 ncm-et-15 2021-01-10 00:57 00:52:27 1967695 346 277 0 69 +382.25 +/- 41.3
142106 ncm-et-3 2021-01-10 00:57 00:52:11 1964768 348 265 2 81 +342.65 +/- 38.1
142105 ncm-et-9 2021-01-10 00:56 00:52:58 1956030 342 271 1 70 +371.77 +/- 41.08
142104 ncm-et-13 2021-01-09 23:45 01:14:25 1961536 500 389 4 107 +354.5 +/- 33.15
142103 ncm-et-10 2021-01-09 23:44 01:15:10 1966173 500 392 3 105 +361.43 +/- 33.45
142102 ncm-et-4 2021-01-09 23:44 01:14:31 1943922 500 400 0 100 +381.69 +/- 34.16
142101 ncm-et-9 2021-01-09 23:41 01:14:13 1967252 500 410 2 88 +397.72 +/- 36.65
142100 ncm-et-3 2021-01-09 23:41 01:14:54 1969258 500 395 2 103 +368.59 +/- 33.75
142099 ncm-et-15 2021-01-09 23:39 01:16:08 1967393 500 392 3 105 +361.43 +/- 33.45
142098 ncm-et-13 2021-01-09 22:29 01:15:21 1960308 500 398 4 98 +370.41 +/- 34.7
142097 ncm-et-4 2021-01-09 22:28 01:14:56 1975607 500 424 2 74 +429.05 +/- 40.11
142096 ncm-et-10 2021-01-09 22:26 01:16:51 1958331 500 399 0 101 +379.77 +/- 33.98
142095 ncm-et-9 2021-01-09 22:24 01:15:39 1968783 500 398 5 97 +368.59 +/- 34.9
142094 ncm-et-3 2021-01-09 22:24 01:15:48 1968623 500 382 1 117 +347.77 +/- 31.5
142093 ncm-et-15 2021-01-09 22:24 01:14:50 1968169 500 400 4 96 +374.11 +/- 35.07
142092 ncm-et-13 2021-01-09 21:11 01:17:16 1960923 500 386 2 112 +352.8 +/- 32.29
142091 ncm-et-10 2021-01-09 21:09 01:16:03 1957858 500 407 4 89 +387.57 +/- 36.48
142090 ncm-et-4 2021-01-09 21:09 01:18:03 1946829 500 397 0 103 +375.98 +/- 33.63
142089 ncm-et-15 2021-01-09 21:08 01:14:17 1975758 500 398 4 98 +370.41 +/- 34.7
142088 ncm-et-9 2021-01-09 21:08 01:15:04 1973124 500 403 1 96 +385.59 +/- 34.96
142087 ncm-et-3 2021-01-09 21:07 01:15:19 1975296 500 402 2 96 +381.7 +/- 35.02
142086 ncm-et-13 2021-01-09 19:55 01:14:35 1964610 500 400 4 96 +374.11 +/- 35.07
142085 ncm-et-4 2021-01-09 19:53 01:14:44 1963696 500 405 2 93 +387.57 +/- 35.6
142084 ncm-et-15 2021-01-09 19:53 01:14:37 1974050 500 390 2 108 +359.68 +/- 32.92
142083 ncm-et-10 2021-01-09 19:52 01:15:47 1961390 500 389 3 108 +356.21 +/- 32.96
142082 ncm-et-3 2021-01-09 19:52 01:14:22 1973595 500 403 4 93 +379.78 +/- 35.66
142081 ncm-et-9 2021-01-09 19:52 01:15:17 1974358 500 407 1 92 +393.6 +/- 35.75
142080 ncm-et-13 2021-01-09 18:37 01:16:51 1956640 500 395 5 100 +363.2 +/- 34.35
142079 ncm-et-4 2021-01-09 18:37 01:15:10 1972353 500 414 0 86 +410.58 +/- 36.97
142078 ncm-et-3 2021-01-09 18:36 01:14:57 1976382 500 400 1 99 +379.78 +/- 34.4
142077 ncm-et-10 2021-01-09 18:36 01:15:18 1965078 500 403 4 93 +379.78 +/- 35.66
142076 ncm-et-15 2021-01-09 18:36 01:16:00 1958636 500 392 3 105 +361.43 +/- 33.45
142075 ncm-et-9 2021-01-09 18:35 01:15:33 1969399 500 398 5 97 +368.59 +/- 34.9
142074 ncm-et-15 2021-01-09 17:20 01:14:35 1969556 500 404 4 92 +381.7 +/- 35.86
142073 ncm-et-10 2021-01-09 17:20 01:15:02 1960325 500 392 1 107 +364.98 +/- 33.02
142072 ncm-et-13 2021-01-09 17:20 01:16:20 1956026 500 398 1 101 +375.98 +/- 34.04
142071 ncm-et-4 2021-01-09 17:20 01:16:05 1968777 500 398 1 101 +375.98 +/- 34.04
142070 ncm-et-9 2021-01-09 17:20 01:14:16 1967552 500 399 1 100 +377.87 +/- 34.22
142069 ncm-et-3 2021-01-09 17:20 01:15:13 1969085 500 390 6 104 +352.8 +/- 33.67

Commit

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 https://tests.stockfishchess.org/tests/view/5ff60e106019e097de3eefd5 Speedup depends on the architecture, up to 4% measured on a NNUE only bench. closes https://github.com/official-stockfish/Stockfish/pull/3287 No functional change
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