Dev Builds » 20210511-1745

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 06:43:20 584271 3992 292 1800 1900 -138.08 ± 5.04 94 1362 498 42 0 -307.13 ± 15.28
ncm-dbt-02 06:43:03 586533 4000 323 1803 1874 -134.95 ± 5.04 96 1325 543 35 1 -296.27 ± 14.62
ncm-dbt-03 06:43:26 586462 4012 340 1820 1852 -134.51 ± 4.96 96 1316 566 28 0 -294.56 ± 14.29
ncm-dbt-04 06:42:44 567211 4000 335 1809 1856 -134.35 ± 5.03 88 1342 526 44 0 -296.61 ± 14.87
ncm-dbt-05 06:44:20 580900 3996 348 1803 1845 -132.59 ± 5.02 94 1302 567 35 0 -288.83 ± 14.29
20000 1638 9035 9327 -134.89 ± 2.24 468 6647 2700 184 1 -296.61 ± 6.55

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
455843 ncm-dbt-03 586393 12 0 6 6 -190.66 ± 114.09 1 4 1 0 0 -416.21 ± 496.36
455842 ncm-dbt-05 582861 496 46 227 223 -132.91 ± 14.61 13 160 70 5 0 -286.4 ± 41.11
455841 ncm-dbt-01 586139 492 36 230 226 -144.84 ± 14.76 14 172 54 6 0 -323.95 ± 47.0
455840 ncm-dbt-04 567126 500 51 230 219 -130.14 ± 15.23 16 153 75 6 0 -270.57 ± 39.67
455839 ncm-dbt-02 586816 500 43 216 241 -125.38 ± 14.79 11 159 72 8 0 -268.17 ± 40.54
455838 ncm-dbt-03 588686 500 40 233 227 -141.44 ± 13.78 14 166 69 1 0 -312.48 ± 41.11
455837 ncm-dbt-05 582193 500 40 215 245 -126.97 ± 13.76 8 164 73 5 0 -280.42 ± 40.21
455836 ncm-dbt-01 585000 500 47 217 236 -123.02 ± 14.82 11 156 75 8 0 -261.07 ± 39.69
455835 ncm-dbt-04 567680 500 43 235 222 -140.62 ± 14.53 14 169 62 5 0 -309.64 ± 43.82
455834 ncm-dbt-02 586562 500 42 228 230 -135.76 ± 13.57 9 172 65 4 0 -306.84 ± 42.73
455833 ncm-dbt-03 585337 500 52 229 219 -128.55 ± 15.08 16 150 79 5 0 -265.78 ± 38.54
455832 ncm-dbt-05 578342 500 43 221 236 -129.35 ± 13.54 8 166 72 4 0 -288.06 ± 40.46
455831 ncm-dbt-01 584453 500 37 219 244 -132.54 ± 14.18 11 165 69 5 0 -290.66 ± 41.43
455830 ncm-dbt-04 565823 500 51 225 224 -126.17 ± 14.29 10 160 74 6 0 -273.0 ± 39.95
455829 ncm-dbt-02 586181 500 40 209 251 -122.24 ± 14.17 9 157 78 6 0 -263.42 ± 38.85
455828 ncm-dbt-03 588132 500 37 220 243 -133.34 ± 14.68 15 157 74 4 0 -282.94 ± 39.86
455827 ncm-dbt-01 584874 500 38 224 238 -135.76 ± 14.29 13 164 69 4 0 -295.94 ± 41.39
455826 ncm-dbt-05 584369 500 42 220 238 -129.35 ± 13.54 11 157 81 1 0 -280.42 ± 37.62
455825 ncm-dbt-04 567165 500 43 222 235 -130.14 ± 14.23 10 165 69 6 0 -285.49 ± 41.44
455824 ncm-dbt-02 587664 500 36 242 222 -152.18 ± 14.89 19 171 58 1 1 -339.63 ± 45.29
455823 ncm-dbt-03 584201 500 36 227 237 -139.81 ± 13.26 9 176 62 3 0 -321.19 ± 43.77
455822 ncm-dbt-01 582819 500 28 223 249 -143.07 ± 14.81 15 171 58 6 0 -315.35 ± 45.33
455821 ncm-dbt-05 578877 500 46 239 215 -141.44 ± 14.51 15 167 64 4 0 -309.64 ± 43.08
455820 ncm-dbt-04 566928 500 39 226 235 -136.56 ± 13.17 7 177 62 4 0 -315.35 ± 43.81
455819 ncm-dbt-02 583824 500 40 231 229 -139.81 ± 13.83 12 170 65 3 0 -312.48 ± 42.67
455818 ncm-dbt-03 586520 500 30 216 254 -135.76 ± 13.01 7 175 65 3 0 -312.48 ± 42.67
455817 ncm-dbt-04 569310 500 38 229 233 -139.81 ± 13.83 11 173 62 4 0 -315.35 ± 43.81
455816 ncm-dbt-01 582903 500 33 225 242 -140.62 ± 13.04 7 182 57 4 0 -330.23 ± 45.79
455815 ncm-dbt-05 581361 500 41 234 225 -141.44 ± 14.15 14 168 65 3 0 -312.48 ± 42.67
455814 ncm-dbt-02 585548 500 34 231 235 -144.71 ± 14.04 13 175 58 4 0 -327.18 ± 45.37
455813 ncm-dbt-03 584622 500 41 227 232 -135.76 ± 14.12 12 166 68 4 0 -298.62 ± 41.71
455812 ncm-dbt-01 585042 500 39 232 229 -141.44 ± 13.59 10 177 59 4 0 -324.17 ± 44.97
455811 ncm-dbt-04 567442 500 35 217 248 -132.54 ± 14.18 8 174 60 8 0 -298.62 ± 44.44
455810 ncm-dbt-05 579042 500 48 231 221 -133.34 ± 15.02 16 156 73 5 0 -280.42 ± 40.21
455809 ncm-dbt-02 586816 500 42 229 229 -136.56 ± 14.62 15 161 70 4 0 -293.29 ± 41.07
455808 ncm-dbt-03 587579 500 49 231 220 -132.54 ± 13.1 7 171 69 3 0 -301.33 ± 41.33
455807 ncm-dbt-01 582945 500 34 230 236 -143.89 ± 14.25 13 175 57 5 0 -324.17 ± 45.77
455806 ncm-dbt-04 566217 500 35 225 240 -138.99 ± 14.21 12 171 62 5 0 -309.64 ± 43.82
455805 ncm-dbt-03 586689 500 55 231 214 -127.76 ± 14.93 15 151 79 5 0 -265.78 ± 38.54
455804 ncm-dbt-05 580157 500 42 216 242 -126.17 ± 14.46 9 164 69 8 0 -275.45 ± 41.43
455803 ncm-dbt-02 588856 500 46 217 237 -123.81 ± 13.81 8 160 77 5 0 -270.57 ± 39.07

Commit

Commit ID b62af7ac1e78c1b35103dfe6110201d0b810aee0
Author EntityFX
Date 2021-05-11 17:45:14 UTC
E2K: added support for MCST Elbrus 2000 CPU architecture e2k (Elbrus 2000) - this is a VLIW/EPIC architecture, the like Intel Itanium (IA-64) architecture. The architecture has half native / half software support for most Intel/AMD SIMD (e.g. MMX/SSE/SSE2/SSE3/SSSE3/SSE4.1/SSE4.2/AES/AVX/AVX2 & 3DNow!/SSE4a/XOP/FMA4) via intrinsics. https://en.wikipedia.org/wiki/Elbrus_2000 closes https://github.com/official-stockfish/Stockfish/pull/3425 No functional change
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