Dev Builds » 20121104-0948

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 06:58:49 1989655 2905 49 2035 821 -290.43 ± 11.87
ncm-et-4 06:59:06 1988254 2899 55 2000 844 -282.26 ± 11.71
ncm-et-9 06:58:51 1986054 2899 41 1934 924 -271.17 ± 11.14
ncm-et-10 06:58:40 1989429 2938 47 2076 815 -295.01 ± 11.92
ncm-et-11 02:58:01 2027538 1260 20 865 375 -282.08 ± 17.56
ncm-et-12 02:58:05 2018458 1237 21 827 389 -270.32 ± 17.22
ncm-et-13 06:59:10 1994528 2941 64 1988 889 -271.9 ± 11.41
ncm-et-15 06:58:42 1985962 2921 42 1993 886 -280.37 ± 11.4
20000 339 13718 5943 -281.02 ± 4.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
115130 ncm-et-3 2020-02-09 08:43 00:21:30 1961688 149 2 110 37 -318.86 ± 57.22
115129 ncm-et-9 2020-02-09 08:42 00:22:15 1972194 152 4 105 43 -278.22 ± 52.85
115128 ncm-et-10 2020-02-09 08:39 00:24:44 1972553 173 2 128 43 -321.43 ± 52.87
115127 ncm-et-4 2020-02-09 08:39 00:25:03 1961844 173 4 118 51 -274.81 ± 48.34
115126 ncm-et-15 2020-02-09 08:39 00:25:08 1967238 171 5 111 55 -251.83 ± 46.45
115125 ncm-et-13 2020-02-09 08:39 00:25:40 1972201 182 7 116 59 -240.23 ± 44.84
115124 ncm-et-3 2020-02-09 07:29 01:12:51 1966460 500 10 347 143 -284.22 ± 28.59
115123 ncm-et-9 2020-02-09 07:29 01:12:25 1952971 500 6 323 171 -259.91 ± 25.87
115122 ncm-et-4 2020-02-09 07:27 01:11:32 1968165 500 9 351 140 -290.66 ± 28.9
115121 ncm-et-10 2020-02-09 07:27 01:11:45 1960341 500 8 358 134 -301.33 ± 29.55
115120 ncm-et-13 2020-02-09 07:26 01:11:12 1968779 500 7 331 162 -268.17 ± 26.68
115119 ncm-et-15 2020-02-09 07:26 01:12:07 1964147 500 10 352 138 -290.66 ± 29.13
115118 ncm-et-3 2020-02-09 06:13 01:14:44 1958782 500 6 350 144 -293.29 ± 28.4
115117 ncm-et-4 2020-02-09 06:13 01:12:31 1970174 500 13 342 145 -274.22 ± 28.41
115116 ncm-et-10 2020-02-09 06:13 01:12:39 1965694 500 6 348 146 -290.66 ± 28.19
115115 ncm-et-15 2020-02-09 06:13 01:12:00 1968952 500 6 340 154 -280.42 ± 27.4
115114 ncm-et-9 2020-02-09 06:13 01:14:42 1932954 500 6 341 153 -281.68 ± 27.49
115113 ncm-et-13 2020-02-09 06:13 01:12:38 1968471 500 16 341 143 -269.37 ± 28.62
115112 ncm-et-15 2020-02-09 05:00 01:11:22 1972338 500 6 344 150 -285.49 ± 27.79
115111 ncm-et-10 2020-02-09 05:00 01:11:37 1968002 500 15 355 130 -288.06 ± 30.02
115110 ncm-et-13 2020-02-09 05:00 01:11:37 1977162 500 9 331 160 -265.78 ± 26.92
115109 ncm-et-4 2020-02-09 05:00 01:12:02 1972346 500 8 329 163 -264.6 ± 26.63
115108 ncm-et-9 2020-02-09 05:00 01:11:43 1965083 500 7 332 161 -269.37 ± 26.77
115107 ncm-et-3 2020-02-09 05:00 01:12:06 1962304 500 5 347 148 -290.66 ± 27.95
42785 ncm-et-4 2018-06-22 08:22 00:33:15 2028194 226 2 154 70 -283.3 ± 40.78
42784 ncm-et-9 2018-06-22 08:21 00:34:38 2026226 247 2 166 79 -277.91 ± 38.26
42783 ncm-et-12 2018-06-22 08:21 00:34:47 2014188 237 8 154 75 -249.66 ± 39.67
42782 ncm-et-15 2018-06-22 08:20 00:35:38 2017259 250 6 164 80 -258.75 ± 38.32
42781 ncm-et-3 2018-06-22 08:19 00:35:50 2026555 256 5 181 70 -292.96 ± 41.13
42780 ncm-et-13 2018-06-22 08:19 00:36:32 2026884 259 4 189 66 -311.26 ± 42.4
42779 ncm-et-10 2018-06-22 08:19 00:36:40 2019697 265 1 192 72 -315.89 ± 40.24
42778 ncm-et-11 2018-06-22 08:18 00:37:48 2027540 260 7 170 83 -255.83 ± 37.64
42777 ncm-et-4 2018-06-22 07:10 01:10:47 2012789 500 10 365 125 -308.24 ± 30.65
42776 ncm-et-10 2018-06-22 07:09 01:08:53 2019211 500 8 347 145 -286.77 ± 28.35
42775 ncm-et-12 2018-06-22 07:08 01:11:27 2021815 500 8 332 160 -268.17 ± 26.89
42774 ncm-et-3 2018-06-22 07:08 01:10:19 2025735 500 8 356 136 -298.62 ± 29.32
42773 ncm-et-15 2018-06-22 07:08 01:11:03 1991615 500 3 333 164 -275.45 ± 26.35
42772 ncm-et-9 2018-06-22 07:07 01:12:32 2028032 500 12 322 166 -251.89 ± 26.45
42771 ncm-et-13 2018-06-22 07:07 01:10:47 2024263 500 9 351 140 -290.66 ± 28.9
42770 ncm-et-11 2018-06-22 07:05 01:11:01 2027866 500 5 345 150 -288.06 ± 27.75
42769 ncm-et-3 2018-06-22 05:55 01:11:29 2026063 500 13 344 143 -276.69 ± 28.62
42768 ncm-et-9 2018-06-22 05:55 01:10:36 2024919 500 4 345 151 -289.36 ± 27.61
42767 ncm-et-13 2018-06-22 05:55 01:10:44 2023938 500 12 329 159 -259.91 ± 27.07
42766 ncm-et-11 2018-06-22 05:55 01:09:12 2027210 500 8 350 142 -290.66 ± 28.66
42765 ncm-et-10 2018-06-22 05:55 01:12:22 2020511 500 7 348 145 -289.36 ± 28.32
42764 ncm-et-4 2018-06-22 05:55 01:13:56 2004270 500 9 341 150 -277.93 ± 27.86
42763 ncm-et-12 2018-06-22 05:55 01:11:51 2019372 500 5 341 154 -282.94 ± 27.36
42762 ncm-et-15 2018-06-22 05:55 01:11:24 2020185 500 6 349 145 -291.97 ± 28.3

Commit

Commit ID 37e9802411fa122eb140ada2edfc9df3be55dbb8
Author Marco Costalba
Date 2012-11-04 09:48:14 UTC
Skip evaluate() call after a null move Reuse the evaluation of the parent with inverted sign and set margin to zero (this is an hack!). This is done only in qsearch where almost 15% of calls are from a null move. In normal search the number of nodes where (ss-1)->currentMove == MOVE_NULL is almost zero and so there is no need of using this trick. The big advantage of this patch is a speed-up due to skipped evaluate() calls, that are very costly. Functionality is of course affected and we will need to proper test it later. For now we just register a 3-4% speed up. Suggested by Hongzhi Cheng. bench: 5051328
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