Dev Builds » 20200627-0819

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 08:25:16 1958685 3328 2157 57 1114 +258.18 +/- 10.14
ncm-et-4 08:27:05 1961292 3345 2120 39 1186 +253.09 +/- 9.77
ncm-et-9 08:23:02 1968904 3335 2130 51 1154 +253.81 +/- 9.94
ncm-et-10 08:26:03 1963134 3328 2087 53 1188 +246.96 +/- 9.79
ncm-et-13 08:22:35 1961932 3336 2112 34 1190 +253.54 +/- 9.74
ncm-et-15 08:22:55 1967140 3328 2136 41 1151 +257.31 +/- 9.93
20000 12742 275 6983 +253.79 +/- 4.03

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
133400 ncm-et-3 2020-07-01 07:29 00:48:37 1963073 328 221 6 101 +272.69 +/- 34.02
133399 ncm-et-15 2020-07-01 07:28 00:49:53 1966785 328 214 3 111 +265.36 +/- 32.13
133398 ncm-et-10 2020-07-01 07:27 00:49:49 1961861 328 201 3 124 +242.82 +/- 30.18
133397 ncm-et-13 2020-07-01 07:27 00:50:26 1962149 336 218 2 116 +265.1 +/- 31.3
133396 ncm-et-9 2020-07-01 07:26 00:50:58 1971280 335 220 2 113 +269.82 +/- 31.76
133395 ncm-et-4 2020-07-01 07:26 00:50:59 1969403 345 220 2 123 +258.68 +/- 30.33
133394 ncm-et-13 2020-07-01 06:10 01:15:19 1964457 500 311 5 184 +247.41 +/- 24.79
133393 ncm-et-10 2020-07-01 06:10 01:16:11 1967079 500 314 11 175 +244.1 +/- 25.69
133392 ncm-et-9 2020-07-01 06:10 01:15:19 1972041 500 319 8 173 +253.02 +/- 25.77
133391 ncm-et-3 2020-07-01 06:10 01:17:47 1958776 500 324 5 171 +262.24 +/- 25.83
133390 ncm-et-4 2020-07-01 06:10 01:15:23 1968324 500 321 5 174 +258.75 +/- 25.59
133389 ncm-et-15 2020-07-01 06:09 01:17:30 1965235 500 317 4 179 +255.3 +/- 25.14
133388 ncm-et-3 2020-07-01 04:54 01:14:58 1961843 500 322 6 172 +258.75 +/- 25.79
133387 ncm-et-9 2020-07-01 04:54 01:15:19 1968172 500 311 9 180 +243.0 +/- 25.24
133386 ncm-et-13 2020-07-01 04:54 01:15:42 1962457 500 321 4 175 +259.91 +/- 25.46
133385 ncm-et-4 2020-07-01 04:53 01:15:39 1961846 500 315 5 180 +251.89 +/- 25.1
133384 ncm-et-10 2020-07-01 04:53 01:16:07 1964633 500 317 2 181 +257.59 +/- 24.89
133383 ncm-et-15 2020-07-01 04:52 01:15:29 1969092 500 331 5 164 +270.57 +/- 26.44
133382 ncm-et-3 2020-07-01 03:38 01:15:01 1963071 500 330 10 160 +263.42 +/- 26.94
133381 ncm-et-13 2020-07-01 03:38 01:15:00 1959548 500 314 7 179 +248.53 +/- 25.26
133380 ncm-et-10 2020-07-01 03:37 01:14:51 1963100 500 313 9 178 +245.2 +/- 25.4
133379 ncm-et-4 2020-07-01 03:37 01:14:56 1965714 500 307 5 188 +243.0 +/- 24.49
133378 ncm-et-9 2020-07-01 03:36 01:16:13 1968320 500 308 13 179 +235.45 +/- 25.42
133377 ncm-et-15 2020-07-01 03:36 01:15:07 1974363 500 319 6 175 +255.3 +/- 25.54
133376 ncm-et-15 2020-07-01 02:21 01:13:58 1966478 500 308 10 182 +238.66 +/- 25.12
133375 ncm-et-4 2020-07-01 02:21 01:15:02 1973586 500 318 6 176 +254.16 +/- 25.46
133374 ncm-et-13 2020-07-01 02:21 01:15:42 1963071 500 320 5 175 +257.59 +/- 25.5
133373 ncm-et-3 2020-07-01 02:21 01:15:57 1962764 500 313 7 180 +247.41 +/- 25.18
133372 ncm-et-9 2020-07-01 02:21 01:14:39 1974216 500 334 5 161 +274.22 +/- 26.71
133371 ncm-et-10 2020-07-01 02:21 01:15:21 1969085 500 313 10 177 +244.1 +/- 25.51
133118 ncm-et-4 2020-06-28 21:47 01:17:22 1965228 500 319 8 173 +253.02 +/- 25.77
133117 ncm-et-3 2020-06-28 21:47 01:15:11 1962609 500 343 13 144 +275.45 +/- 28.51
133116 ncm-et-15 2020-06-28 21:46 01:14:18 1970478 500 326 9 165 +259.91 +/- 26.48
133115 ncm-et-10 2020-06-28 21:46 01:17:08 1959082 500 314 9 177 +246.3 +/- 25.48
133114 ncm-et-9 2020-06-28 21:45 01:14:18 1963842 500 328 10 162 +261.07 +/- 26.76
133113 ncm-et-13 2020-06-28 21:44 01:15:43 1961535 500 314 8 178 +247.41 +/- 25.37
133112 ncm-et-13 2020-06-28 20:28 01:14:43 1960312 500 314 3 183 +253.02 +/- 24.78
133111 ncm-et-9 2020-06-28 20:28 01:16:16 1964458 500 310 4 186 +247.41 +/- 24.6
133110 ncm-et-4 2020-06-28 20:28 01:17:44 1924947 500 320 8 172 +254.16 +/- 25.86
133109 ncm-et-3 2020-06-28 20:28 01:17:45 1938663 500 304 10 186 +234.38 +/- 24.81
133108 ncm-et-15 2020-06-28 20:28 01:16:40 1957555 500 321 4 175 +259.91 +/- 25.46
133107 ncm-et-10 2020-06-28 20:28 01:16:36 1957098 500 315 9 176 +247.41 +/- 25.56

Commit

Commit ID aecfca2dc2d760df257e18cd6b29d266a3c3e68a
Author Niklas Fiekas
Date 2020-06-27 08:19:29 UTC
support popcnt on armv8 * Supports popcnt (thanks @daylen) * bits = 64 is now the default Tested with g++ (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 on ThunderX CN8890, yields about 9% speedup. Also tested with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final). closes https://github.com/official-stockfish/Stockfish/pull/2770 No functional change.
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