Dev Builds » 20200824-1003

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 08:39:46 1963248 3326 2454 38 834 +320.01 +/- 11.78
ncm-et-4 08:39:30 1967652 3319 2442 30 847 +320.25 +/- 11.67
ncm-et-9 08:39:47 1970358 3378 2465 43 870 +313.19 +/- 11.53
ncm-et-10 08:39:37 1959639 3305 2449 48 808 +320.07 +/- 11.98
ncm-et-13 08:39:41 1961671 3342 2443 46 853 +313.36 +/- 11.65
ncm-et-15 08:39:39 1968259 3330 2453 49 828 +316.74 +/- 11.84
20000 14706 254 5040 +317.23 +/- 4.79

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
136159 ncm-et-10 2020-08-26 10:19 00:47:08 1966310 305 220 3 82 +309.28 +/- 37.82
136158 ncm-et-4 2020-08-26 10:16 00:49:41 1969256 319 236 3 80 +322.98 +/- 38.36
136157 ncm-et-3 2020-08-26 10:16 00:50:25 1963532 326 246 3 77 +334.41 +/- 39.16
136156 ncm-et-15 2020-08-26 10:15 00:51:34 1967706 330 233 3 94 +299.28 +/- 35.21
136155 ncm-et-13 2020-08-26 10:12 00:53:46 1963688 342 254 3 85 +325.61 +/- 37.19
136154 ncm-et-9 2020-08-26 10:09 00:57:28 1970025 378 272 2 104 +311.26 +/- 33.39
136153 ncm-et-10 2020-08-26 08:58 01:19:22 1950018 500 382 6 112 +339.63 +/- 32.41
136152 ncm-et-4 2020-08-26 08:57 01:18:09 1968801 500 381 5 114 +339.63 +/- 32.09
136151 ncm-et-15 2020-08-26 08:56 01:17:39 1967848 500 355 12 133 +291.97 +/- 29.7
136150 ncm-et-3 2020-08-26 08:56 01:18:59 1963226 500 373 6 121 +325.67 +/- 31.13
136149 ncm-et-13 2020-08-26 08:54 01:16:57 1963072 500 375 7 118 +327.18 +/- 31.56
136148 ncm-et-9 2020-08-26 08:51 01:16:46 1968330 500 361 7 132 +306.84 +/- 29.77
136147 ncm-et-10 2020-08-26 07:38 01:19:19 1959246 500 384 3 113 +347.77 +/- 32.18
136146 ncm-et-4 2020-08-26 07:37 01:19:07 1956333 500 362 5 133 +311.06 +/- 29.6
136145 ncm-et-3 2020-08-26 07:37 01:17:51 1961999 500 370 7 123 +319.72 +/- 30.88
136144 ncm-et-15 2020-08-26 07:36 01:19:12 1970332 500 376 5 119 +331.77 +/- 31.38
136143 ncm-et-13 2020-08-26 07:34 01:19:26 1959695 500 366 7 127 +313.91 +/- 30.37
136142 ncm-et-9 2020-08-26 07:32 01:17:34 1968627 500 356 8 136 +298.62 +/- 29.32
136141 ncm-et-4 2020-08-26 06:18 01:18:17 1967080 500 367 5 128 +318.25 +/- 30.2
136140 ncm-et-10 2020-08-26 06:17 01:19:49 1959085 500 374 11 115 +319.72 +/- 31.97
136139 ncm-et-3 2020-08-26 06:17 01:18:49 1964147 500 366 4 130 +318.25 +/- 29.92
136138 ncm-et-15 2020-08-26 06:16 01:18:28 1965082 500 366 8 126 +312.48 +/- 30.51
136137 ncm-et-13 2020-08-26 06:16 01:17:07 1962303 500 356 6 138 +301.33 +/- 29.05
136136 ncm-et-9 2020-08-26 06:13 01:18:28 1969550 500 377 5 118 +333.32 +/- 31.52
136135 ncm-et-4 2020-08-26 04:59 01:17:07 1976381 500 367 4 129 +319.72 +/- 30.05
136134 ncm-et-15 2020-08-26 04:58 01:16:43 1967239 500 369 4 127 +322.67 +/- 30.3
136133 ncm-et-3 2020-08-26 04:58 01:17:55 1960767 500 364 8 128 +309.64 +/- 30.26
136132 ncm-et-13 2020-08-26 04:58 01:17:04 1962148 500 352 6 142 +295.94 +/- 28.61
136131 ncm-et-10 2020-08-26 04:56 01:19:38 1958322 500 347 10 143 +284.22 +/- 28.59
136130 ncm-et-9 2020-08-26 04:55 01:16:53 1971745 500 354 3 143 +302.7 +/- 28.39
136129 ncm-et-4 2020-08-26 03:41 01:17:34 1967862 500 376 3 121 +334.88 +/- 31.04
136128 ncm-et-15 2020-08-26 03:39 01:18:18 1969422 500 362 10 128 +304.07 +/- 30.28
136127 ncm-et-3 2020-08-26 03:38 01:18:28 1963071 500 358 7 135 +302.7 +/- 29.42
136126 ncm-et-13 2020-08-26 03:38 01:18:20 1957555 500 361 6 133 +308.24 +/- 29.62
136125 ncm-et-10 2020-08-26 03:38 01:17:11 1963704 500 377 8 115 +328.7 +/- 31.98
136124 ncm-et-9 2020-08-26 03:36 01:17:27 1971117 500 375 11 114 +321.19 +/- 32.11
136123 ncm-et-4 2020-08-26 02:20 01:19:35 1967851 500 353 5 142 +298.62 +/- 28.58
136122 ncm-et-15 2020-08-26 02:20 01:17:45 1970189 500 392 7 101 +354.5 +/- 34.18
136121 ncm-et-13 2020-08-26 02:20 01:17:01 1963242 500 379 11 110 +327.18 +/- 32.69
136120 ncm-et-3 2020-08-26 02:20 01:17:19 1965996 500 377 3 120 +336.46 +/- 31.18
136119 ncm-et-9 2020-08-26 02:20 01:15:11 1973116 500 370 7 123 +319.72 +/- 30.88
136118 ncm-et-10 2020-08-26 02:20 01:17:10 1960790 500 365 7 128 +312.48 +/- 30.25

Commit

Commit ID 701b2427bd84d112376ce858b66befc5b66c4bb2
Author mstembera
Date 2020-08-24 10:03:04 UTC
Support VNNI on 256bit vectors due to downclocking on current chips (tested up to cascade lake) supporting avx512 and vnni512, it is better to use avx2 or vnni256 in multithreaded (in particular hyperthreaded) engine use. In single threaded use, the picture is different. gcc compilation for vnni256 requires a toolchain for gcc >= 9. closes https://github.com/official-stockfish/Stockfish/pull/3038 No functional change
Copyright 2011–2024 Next Chess Move LLC