Dev Builds » 20161106-1048

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 05:48:10 1988331 2385 655 95 1635 +83.13 +/- 7.52
ncm-et-4 05:48:19 1975739 2378 663 125 1590 +79.99 +/- 7.79
ncm-et-5 01:43:32 2023284 720 190 32 498 +77.5 +/- 13.61
ncm-et-6 01:43:46 2025900 718 204 28 486 +86.94 +/- 13.88
ncm-et-7 01:43:52 2024672 707 190 37 480 +76.4 +/- 14.08
ncm-et-8 01:43:42 1976309 705 159 41 505 +58.7 +/- 13.35
ncm-et-9 05:48:14 1989796 2375 672 114 1589 +83.18 +/- 7.77
ncm-et-10 05:48:37 1985401 2367 624 99 1644 +78.36 +/- 7.45
ncm-et-11 01:43:45 2017989 716 202 45 469 +77.44 +/- 14.58
ncm-et-12 01:43:32 2019536 716 217 34 465 +90.81 +/- 14.55
ncm-et-13 05:48:46 1992410 2402 654 114 1634 +79.47 +/- 7.59
ncm-et-14 01:43:46 2021243 719 199 27 493 +84.76 +/- 13.67
ncm-et-15 05:48:32 1990239 2378 699 111 1568 +87.73 +/- 7.86
ncm-et-16 01:43:31 2020836 714 206 37 471 +83.83 +/- 14.4
20000 5534 939 13527 +81.27 +/- 2.65

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
65514 ncm-et-15 2019-01-10 08:22 00:22:53 1971723 158 45 7 106 +85.23 +/- 30.04
65513 ncm-et-9 2019-01-10 08:22 00:23:04 1961688 151 40 9 102 +72.36 +/- 30.83
65512 ncm-et-10 2019-01-10 08:21 00:23:49 1964474 168 45 7 116 +79.97 +/- 28.22
65511 ncm-et-4 2019-01-10 08:20 00:24:48 1963072 169 56 10 103 +97.01 +/- 31.93
65510 ncm-et-3 2019-01-10 08:20 00:25:02 1965072 170 58 7 105 +107.54 +/- 31.14
65509 ncm-et-13 2019-01-10 08:18 00:27:12 1979973 184 38 10 136 +53.28 +/- 25.1
65508 ncm-et-15 2019-01-10 07:08 01:13:31 1984427 500 137 28 335 +76.98 +/- 17.01
65507 ncm-et-4 2019-01-10 07:07 01:12:27 1968098 500 134 26 340 +76.25 +/- 16.72
65506 ncm-et-10 2019-01-10 07:07 01:13:48 1962003 500 113 20 367 +65.38 +/- 15.19
65505 ncm-et-3 2019-01-10 07:06 01:13:23 1975813 500 132 24 344 +76.25 +/- 16.47
65504 ncm-et-9 2019-01-10 07:06 01:15:06 1982362 500 139 30 331 +76.98 +/- 17.25
65503 ncm-et-13 2019-01-10 07:04 01:12:38 1985972 500 162 19 319 +102.22 +/- 17.58
65502 ncm-et-4 2019-01-10 05:53 01:12:42 1960010 500 123 25 352 +68.99 +/- 16.09
65501 ncm-et-10 2019-01-10 05:52 01:13:52 1986573 500 140 20 340 +85.04 +/- 16.57
65500 ncm-et-15 2019-01-10 05:51 01:15:17 1971897 500 142 25 333 +82.83 +/- 17.04
65499 ncm-et-13 2019-01-10 05:51 01:12:09 1969860 500 135 20 345 +81.37 +/- 16.32
65498 ncm-et-3 2019-01-10 05:51 01:13:47 1966151 500 134 18 348 +82.1 +/- 16.11
65497 ncm-et-9 2019-01-10 05:50 01:14:28 1968166 500 144 29 327 +81.37 +/- 17.42
65496 ncm-et-3 2019-01-10 04:38 01:12:18 1970826 500 123 19 358 +73.34 +/- 15.63
65495 ncm-et-4 2019-01-10 04:37 01:14:47 1962456 500 151 25 324 +89.48 +/- 17.48
65494 ncm-et-9 2019-01-10 04:37 01:11:53 1976239 500 149 18 333 +93.2 +/- 16.86
65493 ncm-et-13 2019-01-10 04:37 01:13:02 1968494 500 138 27 335 +78.44 +/- 16.99
65492 ncm-et-10 2019-01-10 04:37 01:13:42 1960615 500 146 24 330 +86.52 +/- 17.17
65491 ncm-et-15 2019-01-10 04:37 01:13:20 1975292 500 157 24 319 +94.7 +/- 17.7
5872 ncm-et-10 2018-03-07 13:50 00:29:01 2020673 199 39 13 147 +45.65 +/- 24.31
5871 ncm-et-8 2018-03-07 13:49 00:29:57 1996361 205 45 11 149 +58.16 +/- 24.28
5870 ncm-et-7 2018-03-07 13:49 00:30:01 2025245 207 63 9 135 +92.78 +/- 26.93
5869 ncm-et-14 2018-03-07 13:48 00:31:21 2021488 219 57 7 155 +80.75 +/- 23.83
5868 ncm-et-11 2018-03-07 13:48 00:31:22 2016934 216 59 12 145 +76.83 +/- 25.85
5867 ncm-et-4 2018-03-07 13:47 00:31:31 1997049 209 64 10 135 +91.85 +/- 27.12
5866 ncm-et-15 2018-03-07 13:47 00:31:19 2017258 220 59 8 153 +82.03 +/- 24.34
5865 ncm-et-3 2018-03-07 13:47 00:31:35 2026226 215 65 5 145 +99.6 +/- 25.12
5864 ncm-et-16 2018-03-07 13:47 00:31:34 2021162 214 70 9 135 +101.86 +/- 27.26
5863 ncm-et-13 2018-03-07 13:47 00:31:48 2025572 218 53 14 151 +62.83 +/- 25.05
5862 ncm-et-12 2018-03-07 13:47 00:31:39 2018073 216 71 12 133 +97.37 +/- 27.94
5861 ncm-et-6 2018-03-07 13:47 00:32:07 2024754 218 61 10 147 +82.81 +/- 25.45
5860 ncm-et-5 2018-03-07 13:47 00:32:06 2024754 220 59 10 151 +78.7 +/- 24.87
5859 ncm-et-9 2018-03-07 13:46 00:33:12 2025245 224 74 5 145 +110.61 +/- 25.58
5858 ncm-et-10 2018-03-07 12:34 01:14:25 2018071 500 141 15 344 +89.48 +/- 16.22
5857 ncm-et-4 2018-03-07 12:34 01:12:04 2003752 500 135 29 336 +74.79 +/- 16.98
5856 ncm-et-5 2018-03-07 12:34 01:11:26 2021814 500 131 22 347 +76.98 +/- 16.27
5855 ncm-et-3 2018-03-07 12:34 01:12:05 2025899 500 143 22 335 +85.78 +/- 16.87
5854 ncm-et-16 2018-03-07 12:34 01:11:57 2020510 500 136 28 336 +76.25 +/- 16.96
5853 ncm-et-8 2018-03-07 12:34 01:13:45 1956258 500 114 30 356 +58.93 +/- 15.98
5852 ncm-et-15 2018-03-07 12:34 01:12:12 2020838 500 159 19 322 +99.95 +/- 17.43
5851 ncm-et-6 2018-03-07 12:34 01:11:39 2027046 500 143 18 339 +88.74 +/- 16.56
5850 ncm-et-13 2018-03-07 12:34 01:11:57 2024591 500 128 24 348 +73.34 +/- 16.27
5849 ncm-et-11 2018-03-07 12:34 01:12:23 2019045 500 143 33 324 +77.71 +/- 17.65
5848 ncm-et-12 2018-03-07 12:34 01:11:53 2020999 500 146 22 332 +88.0 +/- 17.02
5847 ncm-et-9 2018-03-07 12:34 01:10:31 2025081 500 126 23 351 +72.61 +/- 16.09
5846 ncm-et-14 2018-03-07 12:34 01:12:25 2020999 500 142 20 338 +86.52 +/- 16.67
5845 ncm-et-7 2018-03-07 12:34 01:13:51 2024100 500 127 28 345 +69.71 +/- 16.51

Commit

Commit ID 876f07cbeea5b583ca75685cefa0fd4be1e904a4
Author Joost VandeVondele
Date 2016-11-06 10:48:07 UTC
Fix undefined behaviour with unaligned loads in syzygy code Casting a pointer to a different type with stricter alignment requirements yields to implementation dependent behaviour. Practicaly everything is fine for common platforms because the CPU/OS/compiler will generate correct code, but anyhow it is better to be safe than sorry. Testing with dbg_hit_on() shows that the unalignment accesses are very rare (below 0.1%) so it makes sense to split the code in a fast path for the common case and a slower path as a fallback. No functional change (verified with TB enabled).
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