Dev Builds » 20171226-0940

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 06:02:26 2001923 2451 959 70 1422 +132.03 +/- 8.51
ncm-et-4 06:02:10 1993821 2438 918 71 1449 +125.95 +/- 8.37
ncm-et-5 01:52:53 2024672 755 274 25 456 +119.03 +/- 14.92
ncm-et-6 01:53:24 2026228 771 305 30 436 +129.62 +/- 15.59
ncm-et-7 01:53:31 2024264 771 328 30 413 +141.65 +/- 16.2
ncm-et-8 01:53:34 1976389 756 304 25 427 +134.57 +/- 15.69
ncm-et-9 06:02:27 2001577 2431 937 72 1422 +129.28 +/- 8.5
ncm-et-10 06:02:02 1982288 2455 936 68 1451 +128.38 +/- 8.37
ncm-et-11 01:53:31 1997597 779 293 27 459 +123.6 +/- 14.99
ncm-et-12 01:53:28 2001249 765 289 19 457 +128.13 +/- 14.84
ncm-et-13 06:02:15 2000854 2437 949 79 1409 +129.75 +/- 8.58
ncm-et-14 01:53:10 2020754 768 319 16 433 +144.93 +/- 15.43
ncm-et-15 06:02:21 1975685 2423 981 71 1371 +137.2 +/- 8.72
20000 7792 603 11605 +130.72 +/- 2.98

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
54444 ncm-et-15 2018-09-20 02:13 00:23:54 1914117 155 52 4 99 +111.24 +/- 31.27
54443 ncm-et-13 2018-09-20 02:13 00:24:08 1986572 156 58 5 93 +122.92 +/- 33.24
54442 ncm-et-4 2018-09-20 02:12 00:25:25 1989716 169 69 8 92 +131.32 +/- 34.51
54441 ncm-et-9 2018-09-20 02:12 00:25:34 1989878 165 61 5 99 +122.79 +/- 32.1
54440 ncm-et-3 2018-09-20 02:11 00:26:17 1992088 178 66 5 107 +124.08 +/- 30.79
54439 ncm-et-10 2018-09-20 02:10 00:26:39 1953705 176 69 3 104 +136.97 +/- 31.07
54438 ncm-et-13 2018-09-20 00:58 01:14:23 1989401 500 175 13 312 +116.78 +/- 17.73
54437 ncm-et-3 2018-09-20 00:57 01:13:12 1989244 500 207 14 279 +141.44 +/- 19.4
54436 ncm-et-4 2018-09-20 00:56 01:14:52 1988454 500 175 13 312 +116.78 +/- 17.73
54435 ncm-et-10 2018-09-20 00:55 01:14:09 1936953 500 188 9 303 +130.15 +/- 18.03
54434 ncm-et-15 2018-09-20 00:55 01:17:11 1938356 500 204 21 275 +133.34 +/- 19.8
54433 ncm-et-9 2018-09-20 00:55 01:15:42 1988927 500 200 19 281 +131.74 +/- 19.45
54432 ncm-et-13 2018-09-19 23:43 01:13:51 1988927 500 210 14 276 +143.89 +/- 19.55
54431 ncm-et-10 2018-09-19 23:41 01:13:24 1982948 500 167 12 321 +111.37 +/- 17.26
54430 ncm-et-4 2018-09-19 23:40 01:14:22 1988455 500 191 12 297 +130.15 +/- 18.44
54429 ncm-et-15 2018-09-19 23:40 01:13:36 1982008 500 212 10 278 +148.85 +/- 19.31
54428 ncm-et-3 2018-09-19 23:40 01:15:35 1992406 500 173 15 312 +113.68 +/- 17.8
54427 ncm-et-9 2018-09-19 23:40 01:14:16 1988138 500 197 15 288 +132.54 +/- 18.98
54426 ncm-et-4 2018-09-19 22:25 01:14:00 1989559 500 190 22 288 +121.46 +/- 19.17
54425 ncm-et-13 2018-09-19 22:25 01:16:31 1989243 500 198 16 286 +132.54 +/- 19.11
54424 ncm-et-15 2018-09-19 22:25 01:14:17 1981538 500 206 15 279 +139.81 +/- 19.43
54423 ncm-et-9 2018-09-19 22:25 01:13:26 1989245 500 198 13 289 +134.95 +/- 18.87
54422 ncm-et-10 2018-09-19 22:25 01:14:15 1981381 500 191 15 294 +127.76 +/- 18.68
54421 ncm-et-3 2018-09-19 22:25 01:13:47 1988296 500 196 16 288 +130.94 +/- 19.01
7866 ncm-et-5 2018-03-13 03:26 00:36:58 2025409 255 88 8 159 +112.8 +/- 25.0
7865 ncm-et-8 2018-03-13 03:26 00:37:49 1996384 256 108 9 139 +141.73 +/- 27.84
7864 ncm-et-12 2018-03-13 03:25 00:38:35 2021815 265 100 6 159 +128.84 +/- 25.12
7863 ncm-et-6 2018-03-13 03:24 00:39:19 2025738 271 101 10 160 +121.37 +/- 25.46
7862 ncm-et-14 2018-03-13 03:24 00:39:26 2020999 268 106 4 158 +139.24 +/- 25.13
7861 ncm-et-10 2018-03-13 03:24 00:39:32 2020349 279 115 4 160 +146.3 +/- 25.15
7860 ncm-et-4 2018-03-13 03:24 00:39:34 2005787 269 111 8 150 +140.17 +/- 26.53
7859 ncm-et-9 2018-03-13 03:24 00:39:40 2025408 266 100 4 162 +131.3 +/- 24.57
7858 ncm-et-3 2018-03-13 03:24 00:39:44 2025735 273 113 7 153 +142.37 +/- 26.15
7857 ncm-et-7 2018-03-13 03:24 00:40:08 2023775 271 111 11 149 +134.55 +/- 26.91
7856 ncm-et-13 2018-03-13 03:23 00:40:31 2026063 281 104 13 164 +116.72 +/- 25.39
7855 ncm-et-15 2018-03-13 03:23 00:40:23 2020184 268 110 9 149 +137.72 +/- 26.72
7854 ncm-et-11 2018-03-13 03:23 00:40:58 1977612 279 112 8 159 +136.06 +/- 25.61
7853 ncm-et-5 2018-03-13 02:09 01:15:55 2023936 500 186 17 297 +122.24 +/- 18.59
7852 ncm-et-14 2018-03-13 02:09 01:13:44 2020510 500 213 12 275 +148.02 +/- 19.54
7851 ncm-et-13 2018-03-13 02:09 01:12:51 2024918 500 204 18 278 +135.76 +/- 19.57
7850 ncm-et-6 2018-03-13 02:09 01:14:05 2026718 500 204 20 276 +134.15 +/- 19.72
7849 ncm-et-12 2018-03-13 02:09 01:14:53 1980683 500 189 13 298 +127.76 +/- 18.42
7848 ncm-et-9 2018-03-13 02:09 01:13:49 2027866 500 181 16 303 +119.11 +/- 18.27
7847 ncm-et-7 2018-03-13 02:09 01:13:23 2024754 500 217 19 264 +145.54 +/- 20.31
7846 ncm-et-15 2018-03-13 02:09 01:13:00 2017908 500 197 12 291 +134.95 +/- 18.73
7845 ncm-et-8 2018-03-13 02:09 01:15:45 1956394 500 196 16 288 +130.94 +/- 19.01
7844 ncm-et-4 2018-03-13 02:09 01:13:57 2000956 500 182 8 310 +126.18 +/- 17.65
7843 ncm-et-3 2018-03-13 02:09 01:13:51 2023773 500 204 13 283 +139.81 +/- 19.17
7842 ncm-et-11 2018-03-13 02:09 01:12:33 2017583 500 181 19 300 +116.78 +/- 18.5
7841 ncm-et-10 2018-03-13 02:09 01:14:03 2018395 500 206 25 269 +131.74 +/- 20.19

Commit

Commit ID 1c50d8cbf554733c0db6ab423b413d75cc0c1928
Author Joost VandeVondele
Date 2017-12-26 09:40:42 UTC
Upon changing the number of threads, make sure all threads are bound The heuristic to avoid thread binding if less than 8 threads are requested resulted in the first 7 threads not being bound. The branch was verified to yield a roughly 13% speedup by @CoffeeOne on the appropriate hardware and OS, and an earlier version of this patch tested well on his machine: http://tests.stockfishchess.org/tests/view/5a3693480ebc590ccbb8be5a ELO: 9.24 +-4.6 (95%) LOS: 100.0% Total: 5000 W: 634 L: 501 D: 3865 To make sure all threads (including mainThread) are bound as soon as the total number exceeds 7, recreate all threads on a change of thread number. To do this, unify Threads::init, Threads::exit and Threads::set are unified in a single Threads::set function that goes through the needed steps. The code includes several suggestions from @joergoster. Fixes issue #1312 No functional change
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