Dev Builds » 20120408-0746

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 08:06:38 1976312 3380 56 2352 972 -287.61 +/- 10.9
ncm-et-4 08:06:29 1977860 3370 71 2320 979 -280.02 +/- 10.88
ncm-et-9 08:06:26 1978556 3387 61 2282 1044 -272.84 +/- 10.51
ncm-et-10 08:06:33 1959878 3323 62 2271 990 -278.4 +/- 10.8
ncm-et-13 08:06:18 1975036 3374 72 2349 953 -284.77 +/- 11.03
ncm-et-15 08:06:44 1872825 3166 54 2186 926 -283.84 +/- 11.17
20000 376 13760 5864 -281.18 +/- 4.44

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
121026 ncm-et-10 2020-03-30 16:07 00:21:19 1962938 146 2 95 49 -261.65 +/- 48.94
121025 ncm-et-4 2020-03-30 16:05 00:23:33 1970024 159 3 114 42 -300.05 +/- 53.54
121024 ncm-et-15 2020-03-30 16:03 00:24:45 1968015 166 2 122 42 -317.44 +/- 53.51
121023 ncm-et-3 2020-03-30 16:03 00:24:59 1963533 175 4 116 55 -263.42 +/- 46.42
121022 ncm-et-9 2020-03-30 16:02 00:25:18 1969415 174 5 121 48 -279.59 +/- 49.93
121021 ncm-et-13 2020-03-30 16:01 00:26:50 1962609 180 4 126 50 -286.63 +/- 48.89
121020 ncm-et-10 2020-03-30 14:54 01:11:48 1960788 500 6 363 131 -311.06 +/- 29.86
121019 ncm-et-15 2020-03-30 14:51 01:10:52 1969897 500 12 354 134 -290.66 +/- 29.58
121018 ncm-et-4 2020-03-30 14:50 01:13:09 1963840 500 7 335 158 -273.0 +/- 27.05
121017 ncm-et-3 2020-03-30 14:50 01:11:40 1964455 500 11 349 140 -285.49 +/- 28.92
121016 ncm-et-9 2020-03-30 14:49 01:12:12 1974359 500 7 332 161 -269.37 +/- 26.77
121015 ncm-et-13 2020-03-30 14:48 01:12:01 1961383 500 10 355 135 -294.61 +/- 29.46
121014 ncm-et-10 2020-03-30 13:39 01:13:46 1968621 500 10 324 166 -256.44 +/- 26.41
121013 ncm-et-15 2020-03-30 13:37 01:13:00 1970958 500 6 339 155 -279.17 +/- 27.3
121012 ncm-et-3 2020-03-30 13:37 01:11:58 1962610 500 11 356 133 -294.61 +/- 29.69
121011 ncm-et-4 2020-03-30 13:36 01:13:13 1961698 500 15 341 144 -270.57 +/- 28.52
121010 ncm-et-13 2020-03-30 13:35 01:11:52 1960467 500 15 345 140 -275.45 +/- 28.93
121009 ncm-et-9 2020-03-30 13:35 01:12:56 1968778 500 11 342 147 -276.69 +/- 28.19
121008 ncm-et-4 2020-03-30 12:23 01:12:17 1970027 500 15 341 144 -270.57 +/- 28.52
121007 ncm-et-13 2020-03-30 12:23 01:11:25 1961844 500 8 348 144 -288.06 +/- 28.45
121006 ncm-et-15 2020-03-30 12:23 01:13:27 1964151 500 10 327 163 -259.91 +/- 26.67
121005 ncm-et-10 2020-03-30 12:23 01:15:27 1958930 500 7 339 154 -277.93 +/- 27.43
121004 ncm-et-9 2020-03-30 12:23 01:11:35 1959710 500 7 325 168 -261.07 +/- 26.16
121003 ncm-et-3 2020-03-30 12:23 01:13:35 1962459 500 6 362 132 -309.64 +/- 29.74
48324 ncm-et-10 2018-08-02 23:24 00:26:11 1980130 177 4 122 51 -279.59 +/- 48.36
48323 ncm-et-13 2018-08-02 23:23 00:26:59 1986097 194 6 147 41 -320.31 +/- 53.99
48322 ncm-et-3 2018-08-02 23:20 00:29:49 1988769 205 0 133 72 -268.63 +/- 39.59
48321 ncm-et-4 2018-08-02 23:20 00:29:44 1989244 211 3 149 59 -295.9 +/- 44.81
48320 ncm-et-9 2018-08-02 23:19 00:30:48 1989874 213 4 142 67 -268.1 +/- 41.9
48319 ncm-et-15 2018-08-02 22:31 01:18:40 1826755 500 11 354 135 -291.97 +/- 29.47
48318 ncm-et-10 2018-08-02 22:13 01:09:52 1982478 500 13 334 153 -264.6 +/- 27.63
48317 ncm-et-13 2018-08-02 22:10 01:12:15 1989400 500 5 346 149 -289.36 +/- 27.85
48316 ncm-et-3 2018-08-02 22:09 01:10:23 1989401 500 9 341 150 -277.93 +/- 27.86
48315 ncm-et-4 2018-08-02 22:07 01:11:57 1989875 500 8 355 137 -297.28 +/- 29.21
48314 ncm-et-9 2018-08-02 22:07 01:11:02 1989244 500 11 339 150 -273.0 +/- 27.9
48313 ncm-et-15 2018-08-02 21:13 01:17:17 1831828 500 4 340 156 -282.94 +/- 27.13
48312 ncm-et-10 2018-08-02 20:59 01:13:26 1958363 500 9 345 146 -282.94 +/- 28.27
48311 ncm-et-3 2018-08-02 20:57 01:11:25 1989875 500 6 348 146 -290.66 +/- 28.19
48310 ncm-et-13 2018-08-02 20:56 01:13:02 1989559 500 13 336 151 -266.97 +/- 27.82
48309 ncm-et-4 2018-08-02 20:55 01:11:14 1989403 500 8 341 151 -279.17 +/- 27.74
48308 ncm-et-9 2018-08-02 20:55 01:11:43 1991140 500 8 332 160 -268.17 +/- 26.89
48307 ncm-et-10 2018-08-02 19:43 01:14:44 1906781 500 11 349 140 -285.49 +/- 28.92
48306 ncm-et-15 2018-08-02 19:43 01:28:43 1578176 500 9 350 141 -289.36 +/- 28.79
48305 ncm-et-13 2018-08-02 19:43 01:11:54 1988929 500 11 346 143 -281.68 +/- 28.6
48304 ncm-et-4 2018-08-02 19:43 01:11:22 1988769 500 12 344 144 -277.93 +/- 28.51
48303 ncm-et-3 2018-08-02 19:43 01:12:49 1989401 500 9 347 144 -285.49 +/- 28.47
48302 ncm-et-9 2018-08-02 19:43 01:10:52 1985933 500 8 349 143 -289.36 +/- 28.56

Commit

Commit ID 0049d3f337b6f3a66a06503c808d6d8b03b68505
Author Marco Costalba
Date 2012-04-08 07:46:04 UTC
Reduce stack usage Shrink dimensions of the biggest stack consumers arrays. In particular movesSearched[] can be safely shrinked without any impact on strenght or risk of crashing. Also MAX_PLY can be reverted to 100 with almost no impact so to limit search recursion and hence stack allocation. A different case is for MAX_MOVES (used by Movepicker's moves[]), because we know that do exsist some artificial position with about 220 legal moves, so in those cases SF will crash. Anyhow these cases are never found in games. An open risk remains perft, especially run above handcrafted positions. This patch originates from a report by Daylen that found SF crashing on his Mac OS X 10.7.3 while in deep analysys on the following position: 8/3Q1pk1/5p2/4r3/5K2/8/8/8 w - - 0 1 No functional change. Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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