Dev Builds » 20200821-1556

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 06:28:43 580805 3998 155 1960 1883 -169.05 ± 4.24 100 1614 276 9 0 -440.13 ± 20.57
ncm-dbt-02 06:27:22 586919 4000 173 1961 1866 -167.1 ± 4.52 108 1594 277 20 1 -424.87 ± 20.5
ncm-dbt-03 06:27:05 587174 4000 159 1978 1863 -170.48 ± 4.37 114 1602 273 11 0 -439.59 ± 20.68
ncm-dbt-04 06:27:41 566054 4002 179 1983 1840 -168.74 ± 4.53 124 1568 297 12 0 -423.78 ± 19.82
ncm-dbt-05 06:28:15 583731 4000 176 1995 1829 -170.48 ± 4.61 137 1556 296 11 0 -425.46 ± 19.86
20000 842 9877 9281 -169.17 ± 1.99 583 7934 1419 63 1 -430.63 ± 9.04

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
443958 ncm-dbt-04 568633 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
443957 ncm-dbt-05 580530 500 19 250 231 -173.66 ± 12.92 19 193 38 0 0 -433.93 ± 56.58
443956 ncm-dbt-01 579992 498 20 246 232 -170.06 ± 12.05 14 198 37 0 0 -438.19 ± 57.4
443955 ncm-dbt-03 584832 500 23 248 229 -168.4 ± 13.94 17 196 32 5 0 -415.05 ± 61.22
443954 ncm-dbt-04 569031 500 25 242 233 -161.49 ± 12.41 11 197 40 2 0 -406.2 ± 55.21
443953 ncm-dbt-02 586562 500 21 239 240 -162.35 ± 12.58 11 198 40 0 1 -415.05 ± 55.18
443952 ncm-dbt-05 583070 500 25 253 222 -171.02 ± 13.34 19 191 39 1 0 -419.61 ± 55.94
443951 ncm-dbt-01 581569 500 16 257 227 -182.6 ± 12.64 20 202 27 1 0 -484.25 ± 68.34
443950 ncm-dbt-03 586858 500 21 249 230 -171.02 ± 13.56 18 195 34 3 0 -424.28 ± 60.03
443949 ncm-dbt-02 587877 500 29 250 221 -164.93 ± 13.51 15 195 36 4 0 -406.2 ± 58.04
443948 ncm-dbt-04 564252 500 14 251 235 -179.0 ± 11.96 17 203 30 0 0 -477.98 ± 64.39
443947 ncm-dbt-05 582652 500 22 238 240 -160.64 ± 12.47 10 199 38 3 0 -406.2 ± 56.64
443946 ncm-dbt-03 585042 500 19 245 236 -169.27 ± 12.55 15 197 37 1 0 -429.05 ± 57.55
443945 ncm-dbt-01 586393 500 18 243 239 -168.4 ± 11.65 11 204 34 1 0 -444.09 ± 60.25
443944 ncm-dbt-02 588345 500 19 248 233 -171.9 ± 13.5 17 199 30 4 0 -433.94 ± 63.67
443943 ncm-dbt-04 566217 500 27 248 225 -164.93 ± 13.08 15 193 40 2 0 -406.2 ± 55.21
443942 ncm-dbt-05 585506 500 22 254 224 -174.55 ± 13.53 21 191 37 1 0 -429.05 ± 57.55
443941 ncm-dbt-03 594063 500 22 255 223 -175.43 ± 12.29 17 199 34 0 0 -454.75 ± 60.11
443940 ncm-dbt-01 580199 500 20 248 232 -171.02 ± 11.68 12 205 32 1 0 -454.76 ± 62.27
443939 ncm-dbt-04 560247 500 21 244 235 -166.66 ± 12.74 15 194 40 1 0 -415.05 ± 55.18
443938 ncm-dbt-02 588047 500 22 242 236 -164.07 ± 12.69 12 199 36 3 0 -415.05 ± 58.26
443937 ncm-dbt-05 583824 500 24 241 235 -161.49 ± 12.41 12 194 43 1 0 -401.92 ± 53.07
443936 ncm-dbt-03 589197 500 14 250 236 -178.11 ± 10.41 11 214 25 0 0 -511.49 ± 71.25
443935 ncm-dbt-01 577889 500 16 240 244 -167.53 ± 12.21 11 205 31 3 0 -438.95 ± 62.99
443934 ncm-dbt-04 568236 500 26 251 223 -168.4 ± 12.14 13 200 36 1 0 -433.94 ± 58.41
443933 ncm-dbt-02 586604 500 17 244 239 -170.15 ± 12.0 12 205 31 2 0 -449.35 ± 63.25
443932 ncm-dbt-05 587877 500 23 255 222 -174.55 ± 13.31 20 193 36 1 0 -433.94 ± 58.41
443931 ncm-dbt-04 566493 500 22 253 225 -173.66 ± 12.92 18 196 35 1 0 -438.95 ± 59.31
443930 ncm-dbt-03 585548 500 19 247 234 -171.02 ± 12.18 14 201 34 1 0 -444.09 ± 60.25
443929 ncm-dbt-01 580365 500 23 248 229 -168.4 ± 12.14 13 200 36 1 0 -433.94 ± 58.41
443928 ncm-dbt-02 587367 500 26 241 233 -159.78 ± 13.18 14 189 45 2 0 -385.59 ± 51.85
443927 ncm-dbt-04 563665 500 21 250 229 -171.9 ± 12.82 16 199 33 2 0 -438.95 ± 61.17
443926 ncm-dbt-05 583070 500 21 249 230 -171.02 ± 13.11 17 196 35 2 0 -429.05 ± 59.28
443925 ncm-dbt-01 581569 500 23 236 241 -158.08 ± 11.72 9 195 46 0 0 -397.71 ± 51.02
443924 ncm-dbt-03 585759 500 19 235 246 -160.64 ± 11.77 9 199 41 1 0 -410.58 ± 54.45
443923 ncm-dbt-02 586943 500 21 249 230 -171.02 ± 13.56 18 195 34 3 0 -424.28 ± 60.03
443922 ncm-dbt-05 583321 500 20 255 225 -177.21 ± 13.1 19 199 30 2 0 -454.76 ± 64.37
443921 ncm-dbt-04 567720 500 23 243 234 -164.07 ± 14.18 19 185 43 3 0 -385.59 ± 53.09
443920 ncm-dbt-02 583614 500 18 248 234 -172.78 ± 10.99 9 214 25 2 0 -484.25 ± 70.99
443919 ncm-dbt-03 586097 500 22 249 229 -170.14 ± 11.76 13 201 36 0 0 -444.08 ± 58.27
443918 ncm-dbt-01 578465 500 19 242 239 -166.66 ± 11.8 10 205 33 2 0 -438.95 ± 61.17

Commit

Commit ID 8b45b1c4907b4b2186441e02edd3b0c37f8b3269
Author Joost VandeVondele
Date 2020-08-21 15:56:33 UTC
Deal with very old linux kernels MADV_HUGEPAGE might not be available, for kernels before 2.6.38 (released 2011). Just skip the madvise. closes https://github.com/official-stockfish/Stockfish/pull/3039 No functional change
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