Dev Builds » 20200824-0930

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 06:29:25 582981 4004 177 1997 1830 -170.39 ± 4.48 125 1581 285 11 0 -432.28 ± 20.24
ncm-dbt-02 06:28:52 584321 4000 169 1979 1852 -169.49 ± 4.39 115 1589 287 9 0 -433.33 ± 20.17
ncm-dbt-03 06:28:31 584789 3996 168 1969 1859 -168.71 ± 4.6 131 1551 304 12 0 -419.42 ± 19.59
ncm-dbt-04 06:28:46 567787 4014 175 1986 1853 -168.91 ± 4.44 118 1586 292 11 0 -428.51 ± 19.99
ncm-dbt-05 06:30:08 582038 3986 166 1970 1850 -169.53 ± 4.25 105 1599 284 5 0 -439.57 ± 20.26
20000 855 9901 9244 -169.41 ± 1.98 594 7906 1452 48 0 -430.51 ± 8.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
460752 ncm-dbt-01 583572 4 0 2 2 -190.27 ± 27.79 0 2 0 0 0 -1199.83 ± 312.71
460751 ncm-dbt-04 566375 14 0 8 6 -225.47 ± 69.17 1 6 0 0 0 -1199.83 ± 201.74
460750 ncm-dbt-05 584706 486 22 241 223 -168.67 ± 12.4 14 191 38 0 0 -428.59 ± 56.56
460749 ncm-dbt-03 582235 496 23 237 236 -160.4 ± 15.04 21 176 47 4 0 -361.63 ± 50.62
460748 ncm-dbt-02 575680 500 24 248 228 -167.53 ± 12.21 13 199 37 1 0 -429.05 ± 57.55
460747 ncm-dbt-04 568275 500 18 252 230 -176.32 ± 12.7 18 199 32 1 0 -454.76 ± 62.27
460746 ncm-dbt-01 583866 500 26 256 218 -172.78 ± 12.27 16 198 36 0 0 -444.08 ± 58.27
460745 ncm-dbt-05 581985 500 18 247 235 -171.9 ± 11.07 11 207 32 0 0 -466.03 ± 62.14
460744 ncm-dbt-03 585590 500 17 250 233 -175.43 ± 12.04 15 204 30 1 0 -466.04 ± 64.5
460743 ncm-dbt-02 585084 500 21 247 232 -169.27 ± 12.55 13 203 31 3 0 -438.95 ± 62.99
460742 ncm-dbt-04 567126 500 22 237 241 -159.78 ± 11.83 9 198 42 1 0 -406.2 ± 53.75
460741 ncm-dbt-01 580157 500 20 246 234 -169.27 ± 13.67 17 196 33 4 0 -419.61 ± 60.67
460740 ncm-dbt-05 582652 500 20 244 236 -167.53 ± 10.96 9 206 35 0 0 -449.34 ± 59.17
460739 ncm-dbt-03 583405 500 23 247 230 -167.53 ± 12.21 13 199 37 1 0 -429.05 ± 57.55
460738 ncm-dbt-02 586985 500 15 245 240 -172.78 ± 11.78 13 205 31 1 0 -460.32 ± 63.35
460737 ncm-dbt-01 576373 500 19 254 227 -177.21 ± 13.1 19 199 30 2 0 -454.76 ± 64.37
460736 ncm-dbt-04 567442 500 12 249 239 -179.0 ± 9.99 10 217 23 0 0 -526.7 ± 74.68
460735 ncm-dbt-03 587919 500 21 257 222 -178.11 ± 13.27 22 192 36 0 0 -444.08 ± 58.27
460734 ncm-dbt-05 584453 500 19 245 236 -169.27 ± 13.24 16 197 34 3 0 -424.28 ± 60.03
460733 ncm-dbt-02 586985 500 18 252 230 -176.32 ± 13.17 20 195 34 1 0 -444.09 ± 60.25
460732 ncm-dbt-01 583363 500 24 244 232 -164.07 ± 11.76 10 201 38 1 0 -424.28 ± 56.73
460731 ncm-dbt-04 568752 500 28 247 225 -163.21 ± 12.97 13 196 38 3 0 -406.2 ± 56.64
460730 ncm-dbt-05 579537 500 23 249 228 -169.27 ± 12.78 15 198 35 2 0 -429.05 ± 59.28
460729 ncm-dbt-03 586266 500 21 239 240 -162.35 ± 11.4 9 200 41 0 0 -419.6 ± 54.3
460728 ncm-dbt-02 585464 500 19 253 228 -176.32 ± 11.7 15 204 31 0 0 -471.91 ± 63.24
460727 ncm-dbt-04 566691 500 21 245 234 -167.53 ± 13.35 17 192 39 2 0 -410.58 ± 55.96
460726 ncm-dbt-01 585632 500 26 258 216 -174.55 ± 13.53 22 188 40 0 0 -424.27 ± 55.03
460725 ncm-dbt-03 585000 500 25 249 226 -167.53 ± 12.68 13 201 33 3 0 -429.05 ± 60.97
460724 ncm-dbt-05 579289 500 20 250 230 -172.78 ± 11.52 13 204 33 0 0 -460.31 ± 61.1
460723 ncm-dbt-02 583992 500 29 254 217 -168.4 ± 13.29 18 190 41 1 0 -410.58 ± 54.45
460722 ncm-dbt-04 567126 500 21 245 234 -167.53 ± 12.45 15 194 41 0 0 -419.6 ± 54.3
460721 ncm-dbt-01 584411 500 24 247 229 -166.66 ± 12.74 15 194 40 1 0 -415.05 ± 55.18
460720 ncm-dbt-03 584874 500 14 250 236 -178.11 ± 12.79 18 202 28 2 0 -466.04 ± 66.79
460719 ncm-dbt-05 583154 500 20 245 235 -168.4 ± 12.38 15 195 40 0 0 -424.27 ± 55.03
460718 ncm-dbt-04 569749 500 30 256 214 -169.27 ± 14.91 23 184 39 4 0 -393.6 ± 55.71
460717 ncm-dbt-02 586308 500 26 245 229 -163.21 ± 13.19 15 191 42 2 0 -397.72 ± 53.79
460716 ncm-dbt-01 583698 500 13 245 242 -174.55 ± 13.08 18 198 32 2 0 -444.09 ± 62.18
460715 ncm-dbt-03 583028 500 24 240 236 -160.64 ± 14.16 20 177 52 1 0 -366.78 ± 47.92
460714 ncm-dbt-04 568554 500 23 247 230 -167.53 ± 11.73 12 200 38 0 0 -433.93 ± 56.58
460713 ncm-dbt-05 580530 500 24 249 227 -168.4 ± 11.65 12 201 37 0 0 -438.94 ± 57.41
460712 ncm-dbt-01 585759 500 25 245 230 -164.07 ± 11.26 8 205 36 1 0 -433.94 ± 58.41
460711 ncm-dbt-02 584076 500 17 235 248 -162.35 ± 11.15 8 202 40 0 0 -424.27 ± 55.03

Commit

Commit ID e453f09f06f41680ef96f594f593f8de33e62b8f
Author George Sobala
Date 2020-08-24 09:30:55 UTC
armv8 AArch64 does not require -mfpu=neon -mpfu is not required on AArch64 / armv8 architecture on Linux and throws an error if present. This PR has been tested on gcc and clang on Gentoo-64 and Raspian-64 on a Raspberry Pi 4, as well as with a cross from Ubuntu (`make clean && make -j build ARCH=armv8 COMP=gcc COMPILER=aarch64-linux-gnu-g++`) fixes https://github.com/official-stockfish/Stockfish/issues/3056 closes https://github.com/official-stockfish/Stockfish/pull/3059 No functional change
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