Dev Builds » 20210108-1535

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 06:52:38 582434 4014 299 1803 1912 -136.84 ± 4.98 89 1367 510 41 0 -304.78 ± 15.1
ncm-dbt-02 06:53:32 586273 3986 312 1805 1869 -136.79 ± 4.85 74 1382 500 37 0 -309.64 ± 15.25
ncm-dbt-03 06:51:29 586812 4000 322 1800 1878 -134.75 ± 4.91 86 1337 546 31 0 -298.62 ± 14.57
ncm-dbt-04 06:52:18 567175 4020 324 1815 1881 -135.31 ± 4.89 83 1359 534 34 0 -301.67 ± 14.74
ncm-dbt-05 06:51:57 583531 3980 295 1800 1885 -138.24 ± 4.8 75 1386 498 31 0 -314.34 ± 15.27
20000 1552 9023 9425 -136.38 ± 2.19 407 6831 2588 174 0 -305.73 ± 6.69

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
442750 ncm-dbt-01 584369 14 2 7 5 -129.72 ± 68.06 0 5 2 0 0 -311.09 ± 530.6
442749 ncm-dbt-04 567759 20 2 9 9 -126.91 ± 57.06 0 7 3 0 0 -301.22 ± 341.95
442748 ncm-dbt-05 586097 480 35 224 221 -144.61 ± 13.25 8 176 53 3 0 -341.37 ± 47.55
442747 ncm-dbt-02 585632 486 38 223 225 -139.26 ± 15.05 16 157 66 4 0 -298.27 ± 42.36
442746 ncm-dbt-03 588089 500 49 229 222 -130.94 ± 14.04 11 162 73 4 0 -285.49 ± 40.16
442745 ncm-dbt-01 582068 500 34 229 237 -143.07 ± 13.73 11 177 58 4 0 -327.18 ± 45.37
442744 ncm-dbt-04 567878 500 43 226 231 -133.34 ± 14.17 11 166 68 5 0 -293.29 ± 41.75
442743 ncm-dbt-05 580904 500 35 237 228 -148.85 ± 13.31 13 177 59 1 0 -342.85 ± 44.76
442742 ncm-dbt-02 585000 500 39 231 230 -140.62 ± 13.8 11 174 61 4 0 -318.25 ± 44.18
442741 ncm-dbt-03 587452 500 44 223 233 -130.14 ± 13.34 8 166 73 3 0 -290.66 ± 40.08
442740 ncm-dbt-04 567205 500 31 226 243 -143.07 ± 13.54 10 179 57 4 0 -330.23 ± 45.79
442739 ncm-dbt-01 580696 500 34 234 232 -147.19 ± 14.7 18 167 62 3 0 -321.19 ± 43.77
442738 ncm-dbt-05 583447 500 29 225 246 -143.89 ± 12.92 11 174 65 0 0 -330.23 ± 42.3
442737 ncm-dbt-02 587792 500 48 229 223 -131.74 ± 13.85 7 174 62 7 0 -298.62 ± 43.77
442736 ncm-dbt-03 587579 500 34 229 237 -143.07 ± 13.15 12 171 67 0 0 -324.16 ± 41.61
442735 ncm-dbt-01 585126 500 31 214 255 -133.34 ± 14.34 9 173 60 8 0 -298.62 ± 44.44
442734 ncm-dbt-04 568077 500 39 212 249 -125.38 ± 13.07 4 170 71 5 0 -285.49 ± 40.81
442733 ncm-dbt-05 585759 500 34 214 252 -130.94 ± 14.72 7 178 53 12 0 -295.94 ± 46.62
442732 ncm-dbt-02 588132 500 28 225 247 -144.71 ± 12.88 9 181 58 2 0 -339.63 ± 45.29
442731 ncm-dbt-03 587452 500 39 219 242 -130.94 ± 14.39 10 167 66 7 0 -288.06 ± 42.4
442730 ncm-dbt-01 582569 500 31 225 244 -142.25 ± 14.48 16 165 66 3 0 -309.64 ± 42.33
442729 ncm-dbt-04 566296 500 50 232 218 -132.54 ± 15.03 16 155 74 5 0 -277.93 ± 39.92
442728 ncm-dbt-05 580365 500 46 232 222 -135.76 ± 13.94 11 168 67 4 0 -301.33 ± 42.04
442727 ncm-dbt-02 584958 500 30 215 255 -134.95 ± 13.41 7 176 62 5 0 -309.64 ± 43.82
442726 ncm-dbt-04 566572 500 31 222 247 -139.81 ± 13.64 9 178 58 5 0 -321.19 ± 45.36
442725 ncm-dbt-01 579909 500 37 229 234 -140.62 ± 13.04 8 179 60 3 0 -327.18 ± 44.54
442724 ncm-dbt-03 586054 500 40 214 246 -126.17 ± 13.77 8 163 74 5 0 -277.93 ± 39.92
442723 ncm-dbt-05 587664 500 44 222 234 -129.35 ± 13.9 9 165 71 5 0 -285.49 ± 40.81
442722 ncm-dbt-02 587070 500 39 228 233 -138.18 ± 13.32 8 177 61 4 0 -318.25 ± 44.18
442721 ncm-dbt-01 583782 500 44 225 231 -131.74 ± 14.88 13 162 68 7 0 -282.94 ± 41.76
442720 ncm-dbt-04 566612 500 43 227 230 -134.15 ± 13.8 10 168 68 4 0 -298.62 ± 41.71
442719 ncm-dbt-03 586181 500 50 233 217 -133.34 ± 13.26 6 176 63 5 0 -306.84 ± 43.45
442718 ncm-dbt-05 581610 500 30 224 246 -142.25 ± 12.58 9 176 65 0 0 -330.23 ± 42.3
442717 ncm-dbt-02 586604 500 39 220 241 -131.74 ± 15.21 12 167 61 10 0 -285.49 ± 43.92
442716 ncm-dbt-04 565272 500 47 227 226 -130.94 ± 14.72 14 157 74 5 0 -277.93 ± 39.92
442715 ncm-dbt-01 581985 500 36 222 242 -135.76 ± 13.39 6 180 58 6 0 -315.35 ± 45.33
442714 ncm-dbt-03 584622 500 36 223 241 -136.56 ± 14.96 17 157 72 4 0 -288.06 ± 40.46
442713 ncm-dbt-05 582402 500 42 222 236 -130.94 ± 13.69 7 172 65 6 0 -295.94 ± 42.75
442712 ncm-dbt-04 568912 500 38 234 228 -143.89 ± 12.71 9 179 61 1 0 -336.46 ± 43.96
442711 ncm-dbt-01 581402 500 50 218 232 -121.45 ± 14.17 8 159 76 7 0 -263.42 ± 39.41
442710 ncm-dbt-02 585000 500 51 234 215 -133.34 ± 12.09 4 176 69 1 0 -312.48 ± 41.11
442709 ncm-dbt-03 587070 500 30 230 240 -147.19 ± 13.96 14 175 58 3 0 -333.32 ± 45.35

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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