Dev Builds » 20200810-1717

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
ncm-dbt-01 04:28:50 584413 2752 37 1765 950 -256.39 ± 7.84 404 921 50 1 0 -686.14 ± 49.36
ncm-dbt-02 04:28:15 586516 2712 58 1742 912 -252.43 ± 8.5 417 853 83 3 0 -587.76 ± 37.88
ncm-dbt-03 04:27:54 585811 2726 44 1774 908 -260.27 ± 8.27 427 877 58 1 0 -659.08 ± 45.66
ncm-dbt-04 04:28:11 568429 2736 49 1754 933 -253.69 ± 8.06 406 893 69 0 0 -634.86 ± 41.7
ncm-dbt-05 04:28:58 582015 2728 39 1728 961 -251.4 ± 7.72 382 926 55 1 0 -668.32 ± 46.95
13654 227 8763 4664 -254.82 ± 3.61 2036 4470 315 6 0 -644.07 ± 19.26

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
461648 ncm-dbt-02 587664 212 6 139 67 -256.06 ± 32.92 36 61 9 0 0 -541.26 ± 132.17
461647 ncm-dbt-05 581319 228 4 142 82 -243.68 ± 24.56 28 82 4 0 0 -699.19 ± 310.39
461646 ncm-dbt-03 583950 226 3 144 79 -254.09 ± 27.63 33 75 5 0 0 -658.1 ± 226.01
461645 ncm-dbt-04 567878 236 7 150 79 -244.05 ± 26.58 32 79 7 0 0 -605.85 ± 160.95
461644 ncm-dbt-01 582235 252 2 159 91 -253.59 ± 24.83 35 87 4 0 0 -716.87 ± 301.48
461643 ncm-dbt-02 586097 500 8 311 181 -244.09 ± 18.01 67 169 14 0 0 -616.18 ± 100.06
461642 ncm-dbt-05 583531 500 9 315 176 -247.41 ± 18.18 69 168 13 0 0 -629.41 ± 104.8
461641 ncm-dbt-03 587240 500 8 312 180 -245.19 ± 17.9 67 170 13 0 0 -629.41 ± 104.8
461640 ncm-dbt-04 568752 500 7 323 170 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
461639 ncm-dbt-01 584327 500 6 327 167 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
461638 ncm-dbt-02 587240 500 8 323 169 -257.59 ± 19.75 78 160 11 1 0 -629.43 ± 115.29
461637 ncm-dbt-03 587325 500 11 331 158 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
461636 ncm-dbt-05 579992 500 6 318 176 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
461635 ncm-dbt-04 569669 500 10 312 178 -243.0 ± 18.38 68 166 16 0 0 -592.27 ± 92.24
461634 ncm-dbt-01 584874 500 10 321 169 -253.02 ± 19.42 75 162 12 1 0 -616.2 ± 109.19
461633 ncm-dbt-02 583279 500 13 316 171 -244.09 ± 19.27 72 159 19 0 0 -561.34 ± 83.33
461632 ncm-dbt-03 586012 500 11 322 167 -253.02 ± 20.18 78 156 15 1 0 -581.4 ± 95.42
461631 ncm-dbt-05 581070 500 5 302 193 -237.58 ± 16.07 57 183 10 0 0 -676.04 ± 124.55
461630 ncm-dbt-04 569629 500 7 319 174 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
461629 ncm-dbt-01 584495 500 8 327 165 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
461628 ncm-dbt-02 586858 500 13 321 166 -249.64 ± 19.99 76 157 16 1 0 -571.11 ± 91.87
461627 ncm-dbt-03 583698 500 4 331 165 -271.78 ± 18.67 81 165 4 0 0 -837.28 ± 240.94
461626 ncm-dbt-01 585000 500 5 315 180 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
461625 ncm-dbt-05 582903 500 7 322 171 -257.59 ± 18.12 73 169 8 0 0 -715.51 ± 146.53
461624 ncm-dbt-04 567561 500 9 318 173 -250.76 ± 18.88 73 163 14 0 0 -616.18 ± 100.06
461623 ncm-dbt-03 586646 500 7 334 159 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
461622 ncm-dbt-02 587962 500 10 332 158 -265.78 ± 21.55 88 147 14 1 0 -592.29 ± 99.42
461621 ncm-dbt-01 585548 500 6 316 178 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
461620 ncm-dbt-04 567086 500 9 332 159 -266.96 ± 20.39 85 153 12 0 0 -643.67 ± 110.29
461619 ncm-dbt-05 583279 500 8 329 163 -264.59 ± 20.09 82 158 9 1 0 -659.17 ± 131.36

Commit

Commit ID 21df37d7fd4dcc9b4a9c319382cc43685c0259c8
Author Fanael Linithien
Date 2020-08-10 17:17:57 UTC
Provide vectorized NNUE code for SSE2 and MMX targets This patch allows old x86 CPUs, from AMD K8 (which the x86-64 baseline targets) all the way down to the Pentium MMX, to benefit from NNUE with comparable performance hit versus hand-written eval as on more modern processors. NPS of the bench with NNUE enabled on a Pentium III 1.13 GHz (using the MMX code): master: 38951 this patch: 80586 NPS of the bench with NNUE enabled using baseline x86-64 arch, which is how linux distros are likely to package stockfish, on a modern CPU (using the SSE2 code): master: 882584 this patch: 1203945 closes https://github.com/official-stockfish/Stockfish/pull/2956 No functional change.
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