Dev Builds » 20200609-1644

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 08:26:11 1962788 3347 2148 51 1148 +255.6 +/- 9.97
ncm-et-4 08:27:30 1966141 3338 2083 48 1207 +246.11 +/- 9.69
ncm-et-9 08:27:01 1969476 3338 2092 67 1179 +244.46 +/- 9.85
ncm-et-10 08:26:10 1960830 3319 2157 48 1114 +260.74 +/- 10.13
ncm-et-13 08:26:43 1958324 3305 2097 60 1148 +249.83 +/- 9.98
ncm-et-15 08:27:10 1966760 3353 2119 46 1188 +250.91 +/- 9.78
20000 12696 320 6984 +251.22 +/- 4.04

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
132182 ncm-et-13 2020-06-10 08:45 00:46:09 1961075 305 199 5 101 +261.11 +/- 33.9
132181 ncm-et-10 2020-06-10 08:43 00:48:30 1961246 319 203 4 112 +254.06 +/- 32.01
132180 ncm-et-4 2020-06-10 08:40 00:51:06 1969398 338 200 3 135 +231.65 +/- 28.78
132179 ncm-et-9 2020-06-10 08:40 00:51:44 1963387 338 211 7 120 +242.76 +/- 31.04
132178 ncm-et-3 2020-06-10 08:39 00:52:30 1964149 347 226 5 116 +261.59 +/- 31.56
132177 ncm-et-15 2020-06-10 08:38 00:53:33 1963532 353 231 5 117 +263.55 +/- 31.43
132176 ncm-et-13 2020-06-10 07:27 01:16:48 1958787 500 327 7 166 +263.42 +/- 26.33
132175 ncm-et-10 2020-06-10 07:24 01:17:33 1958322 500 318 6 176 +254.16 +/- 25.46
132174 ncm-et-9 2020-06-10 07:23 01:15:59 1970791 500 304 12 184 +232.26 +/- 25.02
132173 ncm-et-4 2020-06-10 07:22 01:16:58 1967562 500 314 7 179 +248.53 +/- 25.26
132172 ncm-et-3 2020-06-10 07:22 01:15:36 1963380 500 324 4 172 +263.42 +/- 25.71
132171 ncm-et-15 2020-06-10 07:22 01:14:42 1968780 500 330 7 163 +266.97 +/- 26.6
132170 ncm-et-13 2020-06-10 06:08 01:18:01 1961538 500 315 12 173 +244.1 +/- 25.87
132169 ncm-et-10 2020-06-10 06:06 01:16:51 1966936 500 315 9 176 +247.41 +/- 25.56
132168 ncm-et-3 2020-06-10 06:05 01:15:58 1962462 500 323 11 166 +254.16 +/- 26.44
132167 ncm-et-9 2020-06-10 06:05 01:16:21 1963075 500 307 12 181 +235.45 +/- 25.24
132166 ncm-et-4 2020-06-10 06:04 01:16:46 1966156 500 315 13 172 +243.0 +/- 25.97
132165 ncm-et-15 2020-06-10 06:04 01:17:03 1965072 500 312 9 179 +244.1 +/- 25.32
132164 ncm-et-13 2020-06-10 04:52 01:14:53 1965690 500 315 5 180 +251.89 +/- 25.1
132163 ncm-et-3 2020-06-10 04:50 01:14:19 1962303 500 319 8 173 +253.02 +/- 25.77
132162 ncm-et-10 2020-06-10 04:49 01:16:09 1954197 500 334 8 158 +270.57 +/- 27.08
132161 ncm-et-9 2020-06-10 04:48 01:15:49 1974204 500 321 9 170 +254.16 +/- 26.05
132160 ncm-et-4 2020-06-10 04:47 01:16:13 1964918 500 317 6 177 +253.02 +/- 25.38
132159 ncm-et-15 2020-06-10 04:47 01:16:08 1972807 500 324 4 172 +263.42 +/- 25.71
132158 ncm-et-3 2020-06-10 03:34 01:15:10 1963532 500 327 10 163 +259.91 +/- 26.67
132157 ncm-et-10 2020-06-10 03:33 01:15:37 1959577 500 351 7 142 +293.29 +/- 28.64
132156 ncm-et-13 2020-06-10 03:31 01:19:43 1936416 500 313 10 177 +244.1 +/- 25.51
132155 ncm-et-15 2020-06-10 03:31 01:14:45 1967694 500 314 11 175 +244.1 +/- 25.69
132154 ncm-et-9 2020-06-10 03:31 01:16:20 1974683 500 312 7 181 +246.3 +/- 25.1
132153 ncm-et-4 2020-06-10 03:31 01:15:23 1965688 500 320 7 173 +255.3 +/- 25.74
132152 ncm-et-3 2020-06-10 02:17 01:15:54 1962615 500 317 7 176 +251.89 +/- 25.5
132151 ncm-et-10 2020-06-10 02:16 01:15:25 1964920 500 322 6 172 +258.75 +/- 25.79
132150 ncm-et-15 2020-06-10 02:15 01:15:04 1959109 500 307 3 190 +245.2 +/- 24.26
132149 ncm-et-9 2020-06-10 02:14 01:15:21 1972961 500 332 6 162 +270.57 +/- 26.65
132148 ncm-et-13 2020-06-10 02:14 01:16:18 1961535 500 315 11 174 +245.2 +/- 25.77
132147 ncm-et-4 2020-06-10 02:14 01:15:53 1967270 500 310 6 184 +245.2 +/- 24.83
132146 ncm-et-10 2020-06-10 00:59 01:16:05 1960614 500 314 8 178 +247.41 +/- 25.37
132145 ncm-et-3 2020-06-10 00:59 01:16:44 1961075 500 312 6 182 +247.41 +/- 24.99
132144 ncm-et-13 2020-06-10 00:58 01:14:51 1963227 500 313 10 177 +244.1 +/- 25.51
132143 ncm-et-9 2020-06-10 00:58 01:15:27 1967231 500 305 14 181 +231.21 +/- 25.28
132142 ncm-et-15 2020-06-10 00:58 01:15:55 1970327 500 301 7 192 +234.38 +/- 24.28
132141 ncm-et-4 2020-06-10 00:58 01:15:11 1962000 500 307 6 187 +241.91 +/- 24.61

Commit

Commit ID 4b10578acbe099482ed40200478df4d775c01af5
Author Sami Kiminki
Date 2020-06-09 16:44:07 UTC
Increase the maximum hash size by a factor of 256 Conceptually group hash clusters into super clusters of 256 clusters. This scheme allows us to use hash sizes up to 32 TB (= 2^32 super clusters = 2^40 clusters). Use 48 bits of the Zobrist key to choose the cluster index. We use 8 extra bits to mitigate the quantization error for very large hashes when scaling the hash key to cluster index. The hash index computation is organized to be compatible with the existing scheme for power-of-two hash sizes up to 128 GB. Fixes https://github.com/official-stockfish/Stockfish/issues/1349 closes https://github.com/official-stockfish/Stockfish/pull/2722 Passed non-regression STC: LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 37976 W: 7336 L: 7211 D: 23429 Ptnml(0-2): 578, 4295, 9149, 4356, 610 https://tests.stockfishchess.org/tests/view/5edcbaaef29b40b0fc95abc5 No functional change.
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