Dev Builds » 20201125-2010

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 06:46:54 583152 4016 305 1866 1845 -142.54 ± 5.0 107 1379 490 32 0 -318.33 ± 15.4
ncm-dbt-02 06:44:42 585286 4000 271 1828 1901 -142.77 ± 4.94 92 1410 462 35 1 -324.91 ± 15.87
ncm-dbt-03 06:46:25 585148 4002 281 1856 1865 -144.53 ± 4.81 83 1444 439 35 0 -334.59 ± 16.28
ncm-dbt-04 06:46:50 568212 3982 294 1839 1849 -142.25 ± 4.9 97 1377 491 26 0 -320.65 ± 15.37
ncm-dbt-05 06:45:51 580520 4000 307 1850 1843 -141.34 ± 4.89 96 1377 501 26 0 -317.89 ± 15.22
20000 1458 9239 9303 -142.68 ± 2.19 475 6987 2383 154 1 -323.19 ± 6.98

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
458416 ncm-dbt-03 586097 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
458415 ncm-dbt-01 583992 16 1 7 8 -136.89 ± 61.78 0 6 2 0 0 -337.87 ± 515.83
458414 ncm-dbt-04 567522 482 41 222 219 -137.18 ± 14.26 12 160 66 3 0 -302.18 ± 42.3
458413 ncm-dbt-02 586985 500 35 219 246 -134.15 ± 14.33 10 171 62 7 0 -298.62 ± 43.77
458412 ncm-dbt-05 578095 500 35 233 232 -145.54 ± 13.25 11 178 59 2 0 -336.46 ± 44.87
458411 ncm-dbt-01 584411 500 30 228 242 -145.54 ± 14.02 11 182 51 6 0 -336.46 ± 48.37
458410 ncm-dbt-03 585421 500 32 232 236 -147.19 ± 14.15 12 182 50 6 0 -339.63 ± 48.85
458409 ncm-dbt-04 568434 500 37 233 230 -143.89 ± 13.89 14 170 64 2 0 -321.19 ± 42.95
458408 ncm-dbt-02 586901 500 32 238 230 -152.18 ± 14.52 17 176 53 4 0 -342.85 ± 47.56
458407 ncm-dbt-05 580655 500 38 220 242 -132.54 ± 13.65 9 168 69 4 0 -295.94 ± 41.39
458406 ncm-dbt-01 584790 500 40 229 231 -138.18 ± 14.06 12 169 65 4 0 -306.84 ± 42.73
458405 ncm-dbt-03 584579 500 35 221 244 -135.76 ± 13.01 6 178 62 4 0 -315.35 ± 43.81
458404 ncm-dbt-04 570308 500 43 235 222 -140.62 ± 14.7 13 173 57 7 0 -312.48 ± 45.66
458403 ncm-dbt-05 582360 500 35 239 226 -150.51 ± 14.02 15 177 55 3 0 -342.85 ± 46.64
458402 ncm-dbt-02 581153 500 27 215 258 -137.37 ± 12.96 8 174 66 2 0 -315.35 ± 42.24
458401 ncm-dbt-01 583196 500 40 247 213 -153.02 ± 14.86 19 173 54 4 0 -339.63 ± 47.1
458400 ncm-dbt-03 585674 500 33 234 233 -148.02 ± 13.93 10 188 45 7 0 -349.43 ± 51.3
458399 ncm-dbt-04 568196 500 31 224 245 -141.44 ± 12.61 6 184 57 3 0 -336.46 ± 45.77
458398 ncm-dbt-01 582360 500 37 222 241 -134.95 ± 13.96 12 164 71 3 0 -295.94 ± 40.69
458397 ncm-dbt-02 585211 500 34 240 226 -152.18 ± 14.15 15 180 51 4 0 -349.43 ± 48.52
458396 ncm-dbt-03 586731 500 38 242 220 -150.51 ± 12.62 11 182 57 0 0 -356.21 ± 45.43
458395 ncm-dbt-05 583028 500 45 224 231 -130.14 ± 13.52 9 164 74 3 0 -288.06 ± 39.79
458394 ncm-dbt-04 567363 500 34 239 227 -151.34 ± 13.8 15 177 56 2 0 -346.12 ± 46.15
458393 ncm-dbt-01 583782 500 32 223 245 -139.81 ± 13.83 11 173 62 4 0 -315.35 ± 43.81
458392 ncm-dbt-02 587537 500 32 229 239 -144.71 ± 13.48 9 184 52 5 0 -339.63 ± 47.98
458391 ncm-dbt-03 582193 500 31 226 243 -143.07 ± 14.1 12 176 57 5 0 -324.17 ± 45.77
458390 ncm-dbt-05 579578 500 35 229 236 -142.25 ± 13.94 13 171 63 3 0 -318.25 ± 43.39
458389 ncm-dbt-04 568434 500 33 223 244 -138.99 ± 14.39 11 175 57 7 0 -312.48 ± 45.66
458388 ncm-dbt-02 585885 500 39 232 229 -141.44 ± 14.15 13 171 62 4 0 -315.35 ± 43.81
458387 ncm-dbt-01 580075 500 40 240 220 -147.19 ± 14.15 13 179 53 5 0 -336.46 ± 47.52
458386 ncm-dbt-03 586774 500 39 230 231 -139.81 ± 13.26 9 176 62 3 0 -321.19 ± 43.77
458385 ncm-dbt-05 575802 500 41 236 223 -143.07 ± 14.28 13 174 58 5 0 -321.19 ± 45.36
458384 ncm-dbt-04 567324 500 38 235 227 -144.71 ± 13.08 12 173 65 0 0 -330.23 ± 42.3
458383 ncm-dbt-02 585211 500 37 230 233 -141.44 ± 13.21 9 178 60 3 0 -327.18 ± 44.54
458382 ncm-dbt-01 579124 500 45 227 228 -132.54 ± 13.83 11 163 73 3 0 -290.66 ± 40.08
458381 ncm-dbt-03 585000 500 28 235 237 -153.02 ± 13.32 10 192 43 5 0 -370.41 ± 52.84
458380 ncm-dbt-05 580655 500 37 239 224 -148.85 ± 13.51 13 178 57 2 0 -342.85 ± 45.71
458379 ncm-dbt-02 583405 500 35 225 240 -138.99 ± 14.74 11 176 56 6 1 -315.35 ± 46.07
458378 ncm-dbt-05 583992 500 41 230 229 -138.18 ± 14.23 13 167 66 4 0 -304.07 ± 42.38
458377 ncm-dbt-01 586646 500 40 243 217 -149.68 ± 14.61 18 170 59 3 0 -330.23 ± 44.94
458376 ncm-dbt-03 583866 500 45 235 220 -138.99 ± 14.39 13 169 63 5 0 -306.84 ± 43.45
458375 ncm-dbt-04 568116 500 37 228 235 -139.81 ± 14.01 14 165 69 2 0 -306.84 ± 41.23

Commit

Commit ID 7615e3485e75c2f1715d372f7bb1f546738a5c76
Author MaximMolchanov
Date 2020-11-25 20:10:13 UTC
Calculate sum from first elements in affine transform for AVX512/AVX2/SSSE3 The idea is to initialize sum with the first element instead of zero. Reduce one add_epi32 and one set_zero SIMD instructions for each output dimension. sum = 0; for i = 1 to n sum += a[i] -> sum = a[1]; for i = 2 to n sum += a[i] STC: LLR: 2.95 (-2.94,2.94) {-0.25,1.25} Total: 69048 W: 7024 L: 6799 D: 55225 Ptnml(0-2): 260, 5175, 23458, 5342, 289 https://tests.stockfishchess.org/tests/view/5faf2cf467cbf42301d6aa06 closes https://github.com/official-stockfish/Stockfish/pull/3227 No functional change.
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