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 06:32:53 584492 4014 65 2569 1380 -254.05 ± 6.51 584 1337 85 1 0 -661.82 ± 37.47
ncm-dbt-02 06:32:41 586559 3994 77 2571 1346 -254.41 ± 6.88 610 1277 107 3 0 -614.35 ± 33.27
ncm-dbt-03 06:31:46 586009 4000 64 2602 1334 -260.2 ± 6.79 624 1291 84 1 0 -663.25 ± 37.69
ncm-dbt-04 06:32:08 568133 4000 68 2561 1371 -253.73 ± 6.64 592 1309 99 0 0 -638.21 ± 34.63
ncm-dbt-05 06:33:14 582572 3992 63 2522 1407 -249.63 ± 6.41 555 1351 88 2 0 -650.91 ± 36.79
20000 337 12825 6838 -254.39 ± 2.97 2965 6565 463 7 0 -644.81 ± 15.86

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
461659 ncm-dbt-01 585253 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
461658 ncm-dbt-02 586223 494 6 311 177 -250.43 ± 17.34 66 173 8 0 0 -713.38 ± 146.51
461657 ncm-dbt-05 584034 492 8 303 181 -240.6 ± 18.53 65 166 14 1 0 -589.39 ± 99.41
461656 ncm-dbt-03 586223 500 7 337 156 -275.44 ± 20.01 87 156 7 0 0 -739.05 ± 163.27
461655 ncm-dbt-04 567324 500 4 329 167 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
461654 ncm-dbt-01 583447 500 10 317 173 -248.52 ± 18.59 71 165 14 0 0 -616.18 ± 100.06
461653 ncm-dbt-02 587155 500 6 321 173 -257.59 ± 17.83 72 171 7 0 0 -739.05 ± 163.27
461652 ncm-dbt-05 584453 500 10 314 176 -245.19 ± 17.36 65 174 11 0 0 -659.13 ± 116.77
461651 ncm-dbt-03 586985 500 7 317 176 -251.89 ± 18.76 73 164 13 0 0 -629.41 ± 104.8
461650 ncm-dbt-04 567165 500 8 308 184 -240.82 ± 17.05 62 176 12 0 0 -643.67 ± 110.29
461649 ncm-dbt-01 585253 500 13 323 164 -251.89 ± 19.28 75 160 15 0 0 -603.84 ± 95.91
461648 ncm-dbt-02 587664 500 13 336 151 -266.96 ± 21.95 91 141 18 0 0 -571.09 ± 86.01
461647 ncm-dbt-05 581319 500 10 319 171 -250.76 ± 18.35 71 167 12 0 0 -643.67 ± 110.29
461646 ncm-dbt-03 583950 500 9 318 173 -250.76 ± 18.08 70 169 11 0 0 -659.13 ± 116.77
461645 ncm-dbt-04 567878 500 14 320 166 -247.41 ± 19.21 73 160 17 0 0 -581.38 ± 88.96
461644 ncm-dbt-01 582235 500 7 313 180 -247.41 ± 17.38 66 174 10 0 0 -676.04 ± 124.55
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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