Dev Builds » 20130426-1014

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 05:54:01 1984017 2465 53 1572 840 -249.77 +/- 11.7
ncm-et-4 05:53:57 1985999 2420 51 1540 829 -249.25 +/- 11.77
ncm-et-5 01:50:17 2023938 763 18 477 268 -241.68 +/- 20.74
ncm-et-6 01:49:53 2024100 761 16 496 249 -258.03 +/- 21.56
ncm-et-7 01:50:09 2000588 770 29 484 257 -235.93 +/- 21.29
ncm-et-9 05:53:50 1983572 2427 54 1579 794 -256.64 +/- 12.05
ncm-et-10 05:53:37 1982321 2438 69 1573 796 -250.15 +/- 12.06
ncm-et-11 01:50:20 2025817 759 19 503 237 -262.06 +/- 22.15
ncm-et-12 01:50:14 2020185 778 21 488 269 -240.96 +/- 20.74
ncm-et-13 05:53:50 1990815 2452 60 1561 831 -247.5 +/- 11.78
ncm-et-14 01:50:27 2020266 776 21 501 254 -251.08 +/- 21.38
ncm-et-15 05:54:03 1983257 2435 53 1527 855 -243.74 +/- 11.58
ncm-et-16 01:49:59 1985441 756 20 500 236 -260.44 +/- 22.21
20000 484 12801 6715 -249.56 +/- 4.14

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
108911 ncm-et-9 2019-12-24 22:14 00:23:17 1966785 156 6 91 59 -212.3 +/- 44.66
108910 ncm-et-13 2019-12-24 22:13 00:23:41 1975921 164 4 108 52 -259.99 +/- 47.79
108909 ncm-et-15 2019-12-24 22:13 00:23:58 1964917 167 4 100 63 -227.48 +/- 42.98
108908 ncm-et-4 2019-12-24 22:13 00:24:32 1961860 164 2 109 53 -270.84 +/- 47.05
108907 ncm-et-10 2019-12-24 22:12 00:24:36 1966793 164 4 109 51 -263.56 +/- 48.29
108906 ncm-et-3 2019-12-24 22:10 00:27:12 1962611 185 4 102 79 -204.91 +/- 37.91
108905 ncm-et-9 2019-12-24 21:01 01:11:23 1962613 500 16 339 145 -266.97 +/- 28.42
108904 ncm-et-13 2019-12-24 20:59 01:12:49 1975300 500 15 307 178 -232.26 +/- 25.53
108903 ncm-et-15 2019-12-24 20:59 01:13:33 1965537 500 12 323 165 -253.02 +/- 26.54
108902 ncm-et-4 2019-12-24 20:58 01:13:21 1965380 500 12 320 168 -249.64 +/- 26.29
108901 ncm-et-3 2019-12-24 20:57 01:11:32 1963532 500 8 319 173 -253.02 +/- 25.77
108900 ncm-et-10 2019-12-24 20:57 01:14:22 1956191 500 10 320 170 -251.89 +/- 26.08
108899 ncm-et-9 2019-12-24 19:46 01:14:31 1958776 500 15 325 160 -251.89 +/- 27.01
108898 ncm-et-15 2019-12-24 19:45 01:12:38 1965383 500 8 312 180 -245.2 +/- 25.21
108897 ncm-et-3 2019-12-24 19:44 01:11:44 1964613 500 11 311 178 -240.82 +/- 25.45
108896 ncm-et-13 2019-12-24 19:44 01:14:05 1972503 500 16 305 179 -229.12 +/- 25.47
108895 ncm-et-4 2019-12-24 19:44 01:13:02 1972666 500 11 313 176 -243.0 +/- 25.61
108894 ncm-et-10 2019-12-24 19:43 01:12:38 1960923 500 21 332 147 -253.02 +/- 28.19
108893 ncm-et-10 2019-12-24 18:30 01:11:51 1970947 500 15 326 159 -253.02 +/- 27.1
108892 ncm-et-3 2019-12-24 18:30 01:13:05 1961383 500 12 308 180 -236.51 +/- 25.32
108891 ncm-et-9 2019-12-24 18:30 01:14:26 1962768 500 6 321 173 -257.59 +/- 25.71
108890 ncm-et-4 2019-12-24 18:30 01:12:44 1967236 500 14 305 181 -231.21 +/- 25.28
108889 ncm-et-13 2019-12-24 18:30 01:13:00 1967400 500 10 322 168 -254.16 +/- 26.24
108888 ncm-et-15 2019-12-24 18:30 01:13:30 1964153 500 9 312 179 -244.1 +/- 25.32
37046 ncm-et-11 2018-05-31 19:37 00:37:24 2025899 259 7 165 87 -246.33 +/- 36.7
37045 ncm-et-16 2018-05-31 19:36 00:37:32 1951675 256 6 169 81 -261.49 +/- 38.09
37044 ncm-et-4 2018-05-31 19:36 00:37:47 2024427 256 4 168 84 -263.78 +/- 37.23
37043 ncm-et-5 2018-05-31 19:36 00:38:05 2022304 263 9 156 98 -219.33 +/- 34.49
37042 ncm-et-9 2018-05-31 19:36 00:38:15 2024426 271 4 173 94 -253.94 +/- 35.05
37041 ncm-et-6 2018-05-31 19:36 00:38:02 2024754 261 6 182 73 -284.43 +/- 40.26
37040 ncm-et-10 2018-05-31 19:35 00:38:41 2017422 274 7 175 92 -248.05 +/- 35.66
37039 ncm-et-15 2018-05-31 19:35 00:39:19 2018883 268 7 165 96 -235.21 +/- 34.82
37038 ncm-et-13 2018-05-31 19:35 00:39:15 2027867 288 6 187 95 -256.72 +/- 35.05
37037 ncm-et-3 2018-05-31 19:35 00:39:35 2023936 280 1 188 91 -280.33 +/- 35.44
37036 ncm-et-12 2018-05-31 19:35 00:39:32 2019208 278 7 177 94 -247.14 +/- 35.26
37035 ncm-et-7 2018-05-31 19:35 00:39:33 1974786 270 11 164 95 -223.26 +/- 35.14
37034 ncm-et-14 2018-05-31 19:34 00:40:02 2020022 276 7 181 88 -257.84 +/- 36.53
37033 ncm-et-9 2018-05-31 18:23 01:11:58 2026064 500 7 330 163 -266.97 +/- 26.6
37032 ncm-et-16 2018-05-31 18:23 01:12:27 2019208 500 14 331 155 -259.91 +/- 27.46
37031 ncm-et-7 2018-05-31 18:23 01:10:36 2026391 500 18 320 162 -243.0 +/- 26.86
37030 ncm-et-10 2018-05-31 18:23 01:11:29 2021651 500 12 311 177 -239.74 +/- 25.55
37029 ncm-et-12 2018-05-31 18:23 01:10:42 2021162 500 14 311 175 -237.58 +/- 25.75
37028 ncm-et-5 2018-05-31 18:23 01:12:12 2025573 500 9 321 170 -254.16 +/- 26.05
37027 ncm-et-4 2018-05-31 18:23 01:12:31 2024426 500 8 325 167 -259.91 +/- 26.28
37026 ncm-et-13 2018-05-31 18:23 01:11:00 2025899 500 9 332 159 -266.97 +/- 27.01
37025 ncm-et-11 2018-05-31 18:23 01:12:56 2025735 500 12 338 150 -270.57 +/- 27.91
37024 ncm-et-6 2018-05-31 18:23 01:11:51 2023446 500 10 314 176 -245.2 +/- 25.59
37023 ncm-et-15 2018-05-31 18:23 01:11:05 2020673 500 13 315 172 -243.0 +/- 25.97
37022 ncm-et-3 2018-05-31 18:23 01:10:53 2028031 500 17 344 139 -271.78 +/- 29.02
37021 ncm-et-14 2018-05-31 18:23 01:10:25 2020510 500 14 320 166 -247.41 +/- 26.48

Commit

Commit ID e508494a9985a5d54e77df694e8f160bb3346de3
Author Marco Costalba
Date 2013-04-26 10:14:01 UTC
Fix a crash introduced few days ago Crash is due to uninitialized ss->futilityMoveCount that when happens to be negative, yields to an out of range access in futility_margin(). Bug is subtle because it shows itself only in SMP case. Indeed in single thread mode we only use the Stack ss[MAX_PLY_PLUS_2]; Allocated at the begin of id_loop() and due to pure (bad) luck, it happens that for all the MAX_PLY_PLUS_2 elements, ss[i].futilityMoveCount >= 0 Note that the patch does not prevent futilityMoveCount to be overwritten after, for instance singular search or null verification, but to keep things readable and because the effect is almost unmeasurable, we here prefer a slightly incorrect but simpler patch. bench: 4311634
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