Dev Builds » 20200824-1003

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 06:28:27 580672 4000 163 1970 1867 -169.16 ± 4.46 117 1586 284 13 0 -430.27 ± 20.28
ncm-dbt-02 06:28:52 586527 4012 148 1999 1865 -173.39 ± 4.38 128 1602 269 7 0 -447.92 ± 20.83
ncm-dbt-03 06:28:00 585313 3992 166 1979 1847 -170.22 ± 4.36 112 1600 273 11 0 -439.21 ± 20.68
ncm-dbt-04 06:29:12 567247 3996 140 1959 1897 -170.68 ± 4.4 116 1599 271 12 0 -439.4 ± 20.76
ncm-dbt-05 06:28:40 582450 4000 154 1972 1874 -170.37 ± 4.47 122 1586 280 12 0 -433.94 ± 20.42
20000 771 9879 9350 -170.76 ± 1.97 595 7973 1377 55 0 -438.07 ± 9.18

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
448842 ncm-dbt-02 586901 12 0 5 7 -154.02 ± 64.21 0 5 1 0 0 -416.21 ± 496.36
448841 ncm-dbt-03 587113 492 22 252 218 -176.09 ± 12.65 17 197 31 1 0 -457.32 ± 63.35
448840 ncm-dbt-05 583656 500 21 239 240 -162.35 ± 13.24 13 196 37 4 0 -401.92 ± 57.23
448839 ncm-dbt-04 569509 496 20 243 233 -168.22 ± 11.22 9 206 32 1 0 -453.27 ± 62.26
448838 ncm-dbt-01 580945 500 24 251 225 -170.15 ± 13.18 17 195 36 2 0 -424.28 ± 58.4
448837 ncm-dbt-02 586435 500 24 254 222 -172.78 ± 11.52 13 204 33 0 0 -460.31 ± 61.1
448836 ncm-dbt-03 585885 500 20 248 232 -171.02 ± 13.78 20 190 38 2 0 -415.05 ± 56.74
448835 ncm-dbt-05 580530 500 13 255 232 -183.51 ± 14.21 25 195 27 3 0 -460.32 ± 67.69
448834 ncm-dbt-04 567601 500 14 250 236 -178.11 ± 12.79 20 196 34 0 0 -454.75 ± 60.11
448833 ncm-dbt-01 582110 500 13 242 245 -171.9 ± 11.6 12 206 31 1 0 -460.32 ± 63.35
448832 ncm-dbt-02 584411 500 17 248 235 -173.66 ± 11.95 14 204 31 1 0 -460.32 ± 63.35
448831 ncm-dbt-03 583154 500 22 250 228 -171.02 ± 12.42 15 199 35 1 0 -438.95 ± 59.31
448830 ncm-dbt-04 568275 500 18 245 237 -170.14 ± 11.76 13 201 36 0 0 -444.08 ± 58.27
448829 ncm-dbt-05 585169 500 25 250 225 -168.4 ± 13.29 17 193 38 2 0 -415.05 ± 56.74
448828 ncm-dbt-01 579331 500 21 243 236 -165.79 ± 12.57 13 198 37 2 0 -419.61 ± 57.55
448827 ncm-dbt-02 588302 500 16 238 246 -165.79 ± 11.87 11 201 37 1 0 -429.05 ± 57.55
448826 ncm-dbt-04 569829 500 16 246 238 -172.78 ± 12.75 16 200 32 2 0 -444.09 ± 62.18
448825 ncm-dbt-05 584664 500 15 242 243 -170.15 ± 12.49 15 198 36 1 0 -433.94 ± 58.41
448824 ncm-dbt-01 580116 500 15 248 237 -175.43 ± 12.54 17 200 32 1 0 -454.76 ± 62.27
448823 ncm-dbt-03 587707 500 23 241 236 -162.35 ± 11.4 7 206 35 2 0 -429.05 ± 59.28
448822 ncm-dbt-02 588472 500 16 250 234 -176.32 ± 14.29 24 188 36 2 0 -424.28 ± 58.4
448821 ncm-dbt-01 583908 500 30 244 226 -158.93 ± 12.13 11 192 47 0 0 -393.59 ± 50.43
448820 ncm-dbt-04 566060 500 18 251 231 -175.43 ± 12.78 15 207 24 4 0 -466.04 ± 71.23
448819 ncm-dbt-03 585843 500 17 243 240 -169.27 ± 10.23 6 215 28 1 0 -477.99 ± 66.98
448818 ncm-dbt-05 581943 500 20 247 233 -170.15 ± 12.49 15 198 36 1 0 -433.94 ± 58.41
448817 ncm-dbt-02 587240 500 28 249 223 -164.93 ± 13.51 17 189 42 2 0 -397.72 ± 53.79
448816 ncm-dbt-04 566572 500 15 252 233 -179.0 ± 12.72 19 200 30 1 0 -466.04 ± 64.5
448815 ncm-dbt-03 581153 500 23 249 228 -169.27 ± 12.32 15 196 39 0 0 -429.05 ± 55.79
448814 ncm-dbt-05 583698 500 19 242 239 -166.66 ± 11.55 10 204 35 1 0 -438.95 ± 59.31
448813 ncm-dbt-01 573729 500 23 250 227 -170.15 ± 13.4 17 196 34 3 0 -424.28 ± 60.03
448812 ncm-dbt-02 584201 500 14 248 238 -176.32 ± 11.17 12 211 26 1 0 -490.71 ± 69.77
448811 ncm-dbt-03 587537 500 16 255 229 -180.8 ± 13.04 20 201 27 2 0 -471.92 ± 68.11
448810 ncm-dbt-05 579289 500 22 252 226 -172.78 ± 12.51 17 196 37 0 0 -438.94 ± 57.41
448809 ncm-dbt-01 580157 500 13 243 244 -172.78 ± 12.03 14 203 32 1 0 -454.76 ± 62.27
448808 ncm-dbt-04 561059 500 19 235 246 -160.64 ± 12.47 11 196 41 2 0 -401.92 ± 54.49
448807 ncm-dbt-02 586393 500 14 249 237 -177.21 ± 11.88 16 203 31 0 0 -471.91 ± 63.24
448806 ncm-dbt-03 584117 500 23 241 236 -162.35 ± 12.58 12 196 40 2 0 -406.2 ± 55.21
448805 ncm-dbt-01 585084 500 24 249 227 -168.4 ± 13.29 16 196 35 3 0 -419.61 ± 59.12
448804 ncm-dbt-04 569071 500 20 237 243 -161.49 ± 12.86 13 193 42 2 0 -397.72 ± 53.79
448803 ncm-dbt-02 586393 500 19 258 223 -180.8 ± 12.8 21 197 32 0 0 -466.03 ± 62.14
448802 ncm-dbt-05 580655 500 19 245 236 -169.27 ± 11.06 10 206 34 0 0 -454.75 ± 60.11

Commit

Commit ID 701b2427bd84d112376ce858b66befc5b66c4bb2
Author mstembera
Date 2020-08-24 10:03:04 UTC
Support VNNI on 256bit vectors due to downclocking on current chips (tested up to cascade lake) supporting avx512 and vnni512, it is better to use avx2 or vnni256 in multithreaded (in particular hyperthreaded) engine use. In single threaded use, the picture is different. gcc compilation for vnni256 requires a toolchain for gcc >= 9. closes https://github.com/official-stockfish/Stockfish/pull/3038 No functional change
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