Dev Builds » 20191019-2227

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 08:26:19 1970332 3325 2036 58 1231 +238.06 +/- 9.61
ncm-et-4 08:28:01 1973615 3330 2045 55 1230 +239.52 +/- 9.6
ncm-et-9 08:27:31 1971808 3349 2054 61 1234 +238.18 +/- 9.6
ncm-et-10 08:26:12 1962782 3345 2016 63 1266 +232.19 +/- 9.47
ncm-et-13 08:25:28 1972036 3313 2004 51 1258 +235.18 +/- 9.47
ncm-et-15 08:25:32 1972185 3338 2030 67 1241 +234.42 +/- 9.58
20000 12185 355 7460 +236.25 +/- 3.9

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
100636 ncm-et-13 2019-10-21 03:49 00:47:05 1974825 313 191 6 116 +236.01 +/- 31.48
100635 ncm-et-4 2019-10-21 03:46 00:49:47 1974994 330 199 7 124 +231.12 +/- 30.45
100634 ncm-et-3 2019-10-21 03:46 00:49:42 1967540 325 200 9 116 +234.22 +/- 31.66
100633 ncm-et-15 2019-10-21 03:45 00:50:44 1978892 338 198 7 133 +222.46 +/- 29.3
100632 ncm-et-10 2019-10-21 03:43 00:52:33 1960772 345 217 2 126 +253.7 +/- 29.91
100631 ncm-et-9 2019-10-21 03:42 00:53:12 1968020 349 214 2 133 +244.9 +/- 29.02
100630 ncm-et-13 2019-10-21 02:31 01:16:11 1974216 500 299 6 195 +233.32 +/- 24.03
100629 ncm-et-4 2019-10-21 02:29 01:15:21 1981802 500 301 12 187 +229.12 +/- 24.79
100628 ncm-et-15 2019-10-21 02:28 01:15:55 1973897 500 311 11 178 +240.82 +/- 25.45
100627 ncm-et-3 2019-10-21 02:27 01:17:26 1967238 500 297 5 198 +232.26 +/- 23.77
100626 ncm-et-10 2019-10-21 02:25 01:16:27 1959558 500 308 13 179 +235.45 +/- 25.42
100625 ncm-et-9 2019-10-21 02:25 01:16:32 1973893 500 309 9 182 +240.82 +/- 25.09
100624 ncm-et-13 2019-10-21 01:13 01:17:10 1969101 500 291 9 200 +221.9 +/- 23.78
100623 ncm-et-4 2019-10-21 01:12 01:16:03 1972511 500 318 8 174 +251.89 +/- 25.69
100622 ncm-et-15 2019-10-21 01:12 01:15:07 1978926 500 307 11 182 +236.51 +/- 25.14
100621 ncm-et-3 2019-10-21 01:11 01:15:10 1971110 500 285 14 201 +210.89 +/- 23.85
100620 ncm-et-10 2019-10-21 01:08 01:16:06 1975039 500 284 6 210 +217.85 +/- 23.01
100619 ncm-et-9 2019-10-21 01:08 01:15:52 1980363 500 314 7 179 +248.53 +/- 25.26
100618 ncm-et-13 2019-10-20 23:55 01:17:07 1963072 500 310 6 184 +245.2 +/- 24.83
100617 ncm-et-15 2019-10-20 23:55 01:15:45 1966167 500 290 15 195 +214.85 +/- 24.29
100616 ncm-et-4 2019-10-20 23:54 01:17:09 1983468 500 294 7 199 +227.04 +/- 23.78
100615 ncm-et-3 2019-10-20 23:54 01:16:15 1965389 500 300 12 188 +228.08 +/- 24.72
100614 ncm-et-10 2019-10-20 23:53 01:14:19 1962624 500 295 13 192 +221.9 +/- 24.45
100613 ncm-et-9 2019-10-20 23:51 01:15:31 1970640 500 300 8 192 +232.26 +/- 24.31
100612 ncm-et-15 2019-10-20 22:39 01:15:11 1978307 500 311 9 180 +243.0 +/- 25.24
100611 ncm-et-13 2019-10-20 22:37 01:16:40 1969248 500 286 9 205 +216.85 +/- 23.45
100610 ncm-et-3 2019-10-20 22:37 01:16:05 1979037 500 319 8 173 +253.02 +/- 25.77
100609 ncm-et-10 2019-10-20 22:36 01:15:26 1960466 500 319 12 169 +248.53 +/- 26.2
100608 ncm-et-4 2019-10-20 22:36 01:16:58 1970336 500 312 5 183 +248.53 +/- 24.87
100607 ncm-et-9 2019-10-20 22:35 01:14:58 1969086 500 304 13 183 +231.21 +/- 25.11
100606 ncm-et-15 2019-10-20 21:22 01:15:28 1968180 500 310 5 185 +246.3 +/- 24.72
100605 ncm-et-13 2019-10-20 21:21 01:15:19 1982679 500 313 9 178 +245.2 +/- 25.4
100604 ncm-et-3 2019-10-20 21:20 01:15:46 1977707 500 316 8 176 +249.64 +/- 25.53
100603 ncm-et-10 2019-10-20 21:19 01:16:07 1946311 500 302 11 187 +231.21 +/- 24.77
100602 ncm-et-4 2019-10-20 21:19 01:15:51 1969866 500 311 8 181 +244.1 +/- 25.14
100601 ncm-et-9 2019-10-20 21:18 01:15:45 1970950 500 296 13 191 +222.92 +/- 24.53
100600 ncm-et-13 2019-10-20 20:04 01:15:56 1971116 500 314 6 180 +249.64 +/- 25.14
100599 ncm-et-15 2019-10-20 20:04 01:17:22 1960927 500 303 9 188 +234.38 +/- 24.64
100598 ncm-et-10 2019-10-20 20:03 01:15:14 1974707 500 291 6 203 +224.97 +/- 23.47
100597 ncm-et-3 2019-10-20 20:03 01:15:55 1964309 500 319 2 179 +259.91 +/- 25.04
100596 ncm-et-9 2019-10-20 20:02 01:15:41 1969706 500 317 9 174 +249.64 +/- 25.72
100595 ncm-et-4 2019-10-20 20:01 01:16:52 1962334 500 310 8 182 +243.0 +/- 25.06

Commit

Commit ID 12d58adc68b1aa084d383d06bc47abbb3495ce3e
Author xoto10
Date 2019-10-19 22:27:17 UTC
Remove uithread With the current questions and issues around threading, I had a look at https://github.com/official-stockfish/Stockfish/issues/2299. It seems there was a problem with data races when requesting eval via UCI while a search was already running. To fix this an extra thread uithread was created, presumably to avoid an overlap with Threads.main() that was causing problems. Making this eval request seems to be outside the scope of UCI, and @vondele also reports that the data race is not even fixed reliably by this change. I suggest we simplify the threading here by removing this uithread and adding a comment signaling that user should not request eval when a search is already running. Closes https://github.com/official-stockfish/Stockfish/pull/2310 No functional change.
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