Dev Builds » 20120417-1751

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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 08:13:21 1976362 3444 68 2363 1013 -279.41 ± 10.69
ncm-et-4 08:12:14 1969958 3406 67 2354 985 -282.6 ± 10.84
ncm-et-9 08:13:51 1980094 3450 49 2367 1034 -282.87 ± 10.55
ncm-et-10 08:14:56 1968504 3431 83 2412 936 -287.3 ± 11.14
ncm-et-13 08:12:53 1967087 3399 49 2327 1023 -281.81 ± 10.61
ncm-et-15 07:39:40 1798147 2870 43 1975 852 -283.69 ± 11.63
20000 359 13798 5843 -282.91 ± 4.45

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
120649 ncm-et-4 2020-03-27 20:59 00:21:16 1949659 140 3 96 41 -278.1 ± 54.11
120648 ncm-et-13 2020-03-27 20:59 00:21:32 1963379 144 2 95 47 -266.87 ± 50.08
120647 ncm-et-15 2020-03-27 20:56 00:24:35 1974048 172 3 119 50 -284.48 ± 48.79
120646 ncm-et-10 2020-03-27 20:55 00:25:12 1966769 178 2 127 49 -302.87 ± 49.27
120645 ncm-et-3 2020-03-27 20:55 00:25:22 1963226 179 4 117 58 -258.34 ± 45.12
120644 ncm-et-9 2020-03-27 20:54 00:26:56 1969408 187 5 123 59 -258.18 ± 44.81
120643 ncm-et-13 2020-03-27 19:46 01:12:09 1966922 500 9 334 157 -269.37 ± 27.19
120642 ncm-et-4 2020-03-27 19:45 01:12:53 1959395 500 9 336 155 -271.78 ± 27.38
120641 ncm-et-10 2020-03-27 19:43 01:11:08 1968169 500 9 351 140 -290.66 ± 28.9
120640 ncm-et-15 2020-03-27 19:42 01:13:05 1964933 500 10 321 169 -253.02 ± 26.16
120639 ncm-et-9 2020-03-27 19:42 01:10:44 1968943 500 7 333 160 -270.57 ± 26.87
120638 ncm-et-3 2020-03-27 19:41 01:12:46 1964610 500 13 354 133 -289.36 ± 29.7
120637 ncm-et-13 2020-03-27 18:33 01:12:14 1969574 500 6 334 160 -273.0 ± 26.83
120636 ncm-et-9 2020-03-27 18:30 01:11:20 1974686 500 10 356 134 -295.94 ± 29.57
120635 ncm-et-10 2020-03-27 18:29 01:13:03 1968007 500 11 354 135 -291.97 ± 29.47
120634 ncm-et-4 2020-03-27 18:29 01:15:46 1924053 500 15 332 153 -259.91 ± 27.65
120633 ncm-et-3 2020-03-27 18:28 01:11:57 1962153 500 10 352 138 -290.66 ± 29.13
120632 ncm-et-15 2020-03-27 18:28 01:13:17 1963534 500 5 346 149 -289.36 ± 27.85
120631 ncm-et-15 2020-03-27 17:16 01:10:36 1965538 500 9 353 138 -293.29 ± 29.11
120630 ncm-et-4 2020-03-27 17:16 01:11:56 1968480 500 12 350 138 -285.49 ± 29.14
120629 ncm-et-3 2020-03-27 17:16 01:11:51 1961083 500 11 330 159 -262.24 ± 27.05
120628 ncm-et-13 2020-03-27 17:15 01:15:58 1958470 500 6 346 148 -288.06 ± 27.99
120627 ncm-et-10 2020-03-27 17:15 01:12:40 1957094 500 20 354 126 -280.42 ± 30.39
120626 ncm-et-9 2020-03-27 17:15 01:13:02 1974523 500 2 341 157 -286.77 ± 26.94
47977 ncm-et-13 2018-07-31 07:13 00:37:20 1960479 255 6 169 80 -262.96 ± 38.34
47976 ncm-et-15 2018-07-31 07:13 00:37:35 1570681 198 2 150 46 -336.04 ± 51.1
47975 ncm-et-10 2018-07-31 07:13 00:37:28 1949640 253 10 184 59 -293.12 ± 44.62
47974 ncm-et-3 2018-07-31 07:13 00:37:41 1989718 265 4 186 75 -292.49 ± 39.63
47973 ncm-et-4 2018-07-31 07:13 00:37:55 1989558 266 1 184 81 -293.27 ± 37.72
47972 ncm-et-9 2018-07-31 07:13 00:37:54 1991297 263 2 182 79 -290.93 ± 38.35
47924 ncm-et-4 2018-07-30 21:00 01:08:48 1990191 500 10 353 137 -291.97 ± 29.24
47923 ncm-et-10 2018-07-30 21:00 01:12:10 1980442 500 10 351 139 -289.36 ± 29.02
47922 ncm-et-3 2018-07-30 21:00 01:10:20 1991140 500 8 342 150 -280.42 ± 27.84
47921 ncm-et-9 2018-07-30 21:00 01:10:51 1987036 500 7 340 153 -279.17 ± 27.52
47920 ncm-et-13 2018-07-30 20:59 01:11:19 1965478 500 7 350 143 -291.97 ± 28.53
47919 ncm-et-15 2018-07-30 20:04 01:31:56 1571677 500 8 339 153 -276.69 ± 27.55
47918 ncm-et-4 2018-07-30 19:47 01:11:55 1990192 500 13 338 149 -269.37 ± 28.02
47917 ncm-et-3 2018-07-30 19:47 01:12:07 1988777 500 4 352 144 -298.62 ± 28.33
47916 ncm-et-9 2018-07-30 19:47 01:12:17 1987823 500 4 345 151 -289.36 ± 27.61
47915 ncm-et-10 2018-07-30 19:47 01:12:30 1979661 500 8 347 145 -286.77 ± 28.35
47914 ncm-et-13 2018-07-30 19:46 01:11:41 1964413 500 6 347 147 -289.36 ± 28.09
47913 ncm-et-10 2018-07-30 18:35 01:10:45 1978255 500 13 344 143 -276.69 ± 28.62
47912 ncm-et-9 2018-07-30 18:35 01:10:47 1987036 500 12 347 141 -281.68 ± 28.82
47911 ncm-et-4 2018-07-30 18:35 01:11:45 1988139 500 4 365 131 -316.8 ± 29.8
47910 ncm-et-13 2018-07-30 18:35 01:10:40 1987983 500 7 352 141 -294.61 ± 28.75
47909 ncm-et-15 2018-07-30 18:35 01:28:36 1576622 500 6 347 147 -289.36 ± 28.09
47908 ncm-et-3 2018-07-30 18:35 01:11:17 1990190 500 14 330 156 -258.75 ± 27.36

Commit

Commit ID ce159b16b9483f83b9e96ac6bf3d6e2ba7e5619c
Author Marco Costalba
Date 2012-04-17 17:51:49 UTC
Fix endless reaparenting loop The check for detecting when a split point has all the slaves still running is done with: slavesMask == allSlavesMask When a thread reparents, slavesMask is increased, then, if the same thread finishes, because there are no more moves, slavesMask returns to original value and the above condition returns to be true. So that the just finished thread immediately reparents again with the same split point, then starts and then immediately exits in a tight loop that ends only when a second slave finishes, so that slavesMask decrements and the condition becomes false. This gives a spurious and anomaly high number of faked reparents. With this patch, that rewrites the logic to avoid this pitfall, the reparenting success rate drops to a more realistical 5-10% for 4 threads case. As a side effect note that now there is no more the limit of maxThreadsPerSplitPoint when reparenting. No functional change. Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Copyright 2011–2024 Next Chess Move LLC