Dev Builds » 20200810-0912

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 06:33:18 582307 4014 78 2581 1355 -253.91 ± 6.6 592 1319 96 0 0 -644.31 ± 35.18
ncm-dbt-02 06:33:19 586300 3994 67 2565 1362 -254.98 ± 6.66 592 1318 83 4 0 -652.94 ± 37.84
ncm-dbt-03 06:32:29 586061 4002 63 2582 1357 -257.27 ± 6.66 603 1315 81 2 0 -665.41 ± 38.39
ncm-dbt-04 06:32:02 567170 4000 61 2614 1325 -262.39 ± 6.82 633 1289 76 2 0 -676.08 ± 39.67
ncm-dbt-05 06:33:41 582070 3990 79 2583 1328 -256.2 ± 6.84 613 1279 102 1 0 -628.99 ± 34.11
20000 348 12925 6727 -256.93 ± 3.0 3033 6520 438 9 0 -652.82 ± 16.31

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
437565 ncm-dbt-03 587113 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
437564 ncm-dbt-01 581735 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
437563 ncm-dbt-02 585211 494 5 321 168 -263.22 ± 18.67 75 167 4 1 0 -764.11 ± 273.02
437562 ncm-dbt-05 585126 490 8 313 169 -253.27 ± 18.93 72 161 12 0 0 -640.07 ± 110.27
437561 ncm-dbt-04 567561 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
437560 ncm-dbt-03 585759 500 7 319 174 -254.15 ± 17.68 70 172 8 0 0 -715.51 ± 146.53
437559 ncm-dbt-01 581943 500 11 322 167 -253.02 ± 18.64 73 165 12 0 0 -643.67 ± 110.29
437558 ncm-dbt-05 581236 500 11 331 158 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
437557 ncm-dbt-02 588387 500 6 318 176 -254.15 ± 17.4 69 174 7 0 0 -739.05 ± 163.27
437556 ncm-dbt-04 568633 500 11 317 172 -247.41 ± 18.96 72 162 16 0 0 -592.27 ± 92.24
437555 ncm-dbt-03 587792 500 12 328 160 -258.74 ± 19.63 79 158 13 0 0 -629.41 ± 104.8
437554 ncm-dbt-01 583154 500 12 313 175 -241.91 ± 17.2 63 175 12 0 0 -643.67 ± 110.29
437553 ncm-dbt-05 582110 500 9 319 172 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
437552 ncm-dbt-02 584622 500 10 320 170 -251.89 ± 19.02 74 162 14 0 0 -616.18 ± 100.06
437551 ncm-dbt-03 584579 500 13 323 164 -251.89 ± 19.28 75 160 15 0 0 -603.84 ± 95.91
437550 ncm-dbt-04 561757 500 5 325 170 -263.41 ± 19.12 78 165 6 1 0 -715.55 ± 177.2
437549 ncm-dbt-01 580987 500 10 320 170 -251.89 ± 19.53 76 158 16 0 0 -592.27 ± 92.24
437548 ncm-dbt-02 586181 500 12 328 160 -258.74 ± 19.63 79 158 13 0 0 -629.41 ± 104.8
437547 ncm-dbt-05 583950 500 12 323 165 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
437546 ncm-dbt-03 586012 500 6 328 166 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
437545 ncm-dbt-04 571029 500 4 323 173 -262.24 ± 18.12 75 169 6 0 0 -766.17 ± 188.02
437544 ncm-dbt-01 582611 500 9 316 175 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
437543 ncm-dbt-05 577520 500 7 329 164 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
437542 ncm-dbt-02 587070 500 10 331 159 -264.59 ± 20.63 85 151 14 0 0 -616.18 ± 100.06
437541 ncm-dbt-03 586689 500 5 325 170 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
437540 ncm-dbt-04 567324 500 6 334 160 -272.99 ± 20.29 87 154 9 0 0 -694.7 ± 134.18
437539 ncm-dbt-01 584664 500 17 320 163 -244.09 ± 19.98 75 153 22 0 0 -534.79 ± 76.59
437538 ncm-dbt-05 582110 500 15 322 163 -248.52 ± 19.35 74 159 17 0 0 -581.38 ± 88.96
437537 ncm-dbt-02 585295 500 6 318 176 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
437536 ncm-dbt-03 586435 500 5 307 188 -243.0 ± 17.07 62 179 8 1 0 -676.08 ± 142.43
437535 ncm-dbt-01 582736 500 8 331 161 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
437534 ncm-dbt-04 566178 500 14 331 155 -259.9 ± 20.3 82 153 15 0 0 -603.84 ± 95.91
437533 ncm-dbt-05 582527 500 10 319 171 -250.76 ± 19.14 74 161 15 0 0 -603.84 ± 95.91
437532 ncm-dbt-04 566888 500 9 332 159 -266.97 ± 20.12 83 158 8 1 0 -676.08 ± 142.43
437531 ncm-dbt-03 584453 500 10 320 170 -251.89 ± 19.02 73 165 11 1 0 -629.43 ± 115.29
437530 ncm-dbt-02 588047 500 9 303 188 -234.38 ± 16.97 58 179 12 1 0 -616.2 ± 109.19
437529 ncm-dbt-01 582778 500 5 326 169 -264.59 ± 18.7 78 165 7 0 0 -739.05 ± 163.27
437528 ncm-dbt-04 567997 500 5 325 170 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
437527 ncm-dbt-03 585717 500 5 331 164 -270.57 ± 19.13 82 162 6 0 0 -766.17 ± 188.02
437526 ncm-dbt-02 585590 500 9 326 165 -259.9 ± 20.3 80 159 9 2 0 -629.43 ± 125.74
437525 ncm-dbt-05 581985 500 7 327 166 -263.41 ± 19.4 79 163 7 1 0 -694.74 ± 156.93
437524 ncm-dbt-01 580157 500 6 323 171 -259.9 ± 18.12 74 169 7 0 0 -739.05 ± 163.27

Commit

Commit ID 875183b310a8249922c2155e82cb4cecfae2097e
Author mstembera
Date 2020-08-10 09:12:35 UTC
Workaround using unaligned loads for gcc < 9 despite usage of alignas, the generated (avx2/avx512) code with older compilers needs to use unaligned loads with older gcc (e.g. confirmed crash with gcc 7.3/mingw on abrok). Better performance thus requires gcc >= 9 on hardware supporting avx2/avx512 closes https://github.com/official-stockfish/Stockfish/pull/2969 No functional change
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