Dev Builds » 20200921-0643

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 08:38:46 1959153 3335 2621 28 686 +361.0 +/- 13.01
ncm-et-4 08:38:50 1943246 3280 2570 29 681 +358.54 +/- 13.05
ncm-et-9 08:39:05 1965772 3343 2585 22 736 +351.68 +/- 12.54
ncm-et-10 08:38:56 1962424 3354 2613 25 716 +355.88 +/- 12.72
ncm-et-13 08:38:48 1959895 3330 2556 25 749 +346.17 +/- 12.43
ncm-et-15 08:38:59 1969074 3358 2626 19 713 +359.99 +/- 12.74
20000 15571 148 4281 +355.48 +/- 5.2

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
139077 ncm-et-4 2020-09-22 06:41 00:46:42 1869086 280 211 2 67 +335.22 +/- 42.0 ↓
139076 ncm-et-13 2020-09-22 06:36 00:51:33 1956645 330 265 1 64 +381.7 +/- 43.07 ↓
139075 ncm-et-3 2020-09-22 06:36 00:51:38 1961995 335 253 3 79 +335.09 +/- 38.65 ↓
139074 ncm-et-9 2020-09-22 06:34 00:53:24 1967556 343 259 3 81 +335.16 +/- 38.15 ↓
139073 ncm-et-10 2020-09-22 06:32 00:55:09 1967385 354 277 1 76 +362.9 +/- 39.35 ↓
139072 ncm-et-15 2020-09-22 06:32 00:55:25 1966617 358 273 3 82 +341.39 +/- 37.93 ↓
139071 ncm-et-4 2020-09-22 05:20 01:19:37 1944423 500 399 6 95 +368.59 +/- 35.27 ↓
139070 ncm-et-13 2020-09-22 05:18 01:16:33 1961534 500 392 1 107 +364.98 +/- 33.02 ↓
139069 ncm-et-9 2020-09-22 05:16 01:17:22 1970334 500 389 2 109 +357.94 +/- 32.76 ↓
139068 ncm-et-3 2020-09-22 05:15 01:19:32 1935174 500 389 4 107 +354.5 +/- 33.15 ↓
139067 ncm-et-10 2020-09-22 05:15 01:16:13 1964615 500 382 3 115 +344.48 +/- 31.89 ↓
139066 ncm-et-15 2020-09-22 05:13 01:17:34 1969710 500 398 5 97 +368.59 +/- 34.9 ↓
139065 ncm-et-4 2020-09-22 04:00 01:19:07 1952444 500 393 3 104 +363.2 +/- 33.62 ↓
139064 ncm-et-13 2020-09-22 03:58 01:18:38 1958929 500 363 4 133 +313.91 +/- 29.56 ↓
139063 ncm-et-9 2020-09-22 03:57 01:17:03 1966787 500 393 0 107 +368.58 +/- 32.96 ↓
139062 ncm-et-3 2020-09-22 03:57 01:17:13 1962917 500 384 5 111 +344.48 +/- 32.54 ↓
139061 ncm-et-10 2020-09-22 03:55 01:18:25 1954962 500 398 4 98 +370.41 +/- 34.7 ↓
139060 ncm-et-15 2020-09-22 03:55 01:17:33 1966004 500 403 2 95 +383.64 +/- 35.21 ↓
139059 ncm-et-4 2020-09-22 02:41 01:17:49 1966321 500 383 6 111 +341.24 +/- 32.56 ↓
139058 ncm-et-9 2020-09-22 02:41 01:15:45 1966482 500 393 2 105 +364.98 +/- 33.41 ↓
139057 ncm-et-13 2020-09-22 02:40 01:17:27 1960768 500 396 2 102 +370.41 +/- 33.92 ↓
139056 ncm-et-10 2020-09-22 02:38 01:15:51 1964922 500 403 5 92 +377.87 +/- 35.86 ↓
139055 ncm-et-3 2020-09-22 02:38 01:17:17 1966151 500 406 2 92 +389.56 +/- 35.8 ↓
139054 ncm-et-15 2020-09-22 02:37 01:17:00 1968172 500 390 4 106 +356.21 +/- 33.31 ↓
139053 ncm-et-4 2020-09-22 01:22 01:17:45 1968649 500 397 8 95 +361.43 +/- 35.25 ↓
139052 ncm-et-9 2020-09-22 01:21 01:18:09 1957705 500 379 7 114 +333.32 +/- 32.12 ↓
139051 ncm-et-13 2020-09-22 01:20 01:18:52 1959543 500 377 7 116 +330.23 +/- 31.84 ↓
139050 ncm-et-15 2020-09-22 01:19 01:16:13 1969563 500 379 1 120 +342.85 +/- 31.08 ↓
139049 ncm-et-10 2020-09-22 01:19 01:18:06 1961387 500 392 3 105 +361.43 +/- 33.45 ↓
139048 ncm-et-3 2020-09-22 01:19 01:18:03 1961230 500 400 5 95 +372.25 +/- 35.28 ↓
139047 ncm-et-4 2020-09-22 00:02 01:18:31 1961399 500 386 3 111 +351.11 +/- 32.49 ↓
139046 ncm-et-15 2020-09-22 00:02 01:16:13 1973426 500 381 1 118 +346.12 +/- 31.36 ↓
139045 ncm-et-9 2020-09-22 00:02 01:18:24 1963532 500 384 4 112 +346.12 +/- 32.37 ↓
139044 ncm-et-3 2020-09-22 00:01 01:16:39 1962609 500 392 4 104 +359.68 +/- 33.64 ↓
139043 ncm-et-10 2020-09-22 00:01 01:17:20 1961854 500 389 8 103 +347.77 +/- 33.83 ↓
139042 ncm-et-13 2020-09-22 00:00 01:18:52 1960769 500 386 5 109 +347.77 +/- 32.85 ↓
139041 ncm-et-3 2020-09-21 22:42 01:18:24 1963997 500 397 5 98 +366.78 +/- 34.71 ↓
139040 ncm-et-4 2020-09-21 22:42 01:19:19 1940400 500 401 1 98 +381.7 +/- 34.59 ↓
139039 ncm-et-13 2020-09-21 22:42 01:16:53 1961080 500 377 5 118 +333.32 +/- 31.52 ↓
139038 ncm-et-15 2020-09-21 22:42 01:19:01 1970031 500 402 3 95 +379.78 +/- 35.24 ↓
139037 ncm-et-9 2020-09-21 22:42 01:18:58 1968011 500 388 4 108 +352.8 +/- 32.99 ↓
139036 ncm-et-10 2020-09-21 22:42 01:17:52 1961845 500 372 1 127 +331.77 +/- 30.15 ↓

Commit

Commit ID 485d517c687a2d3cb0b88cc8c198483759eaf2c7
Author Sami Kiminki
Date 2020-09-21 06:43:48 UTC
Add large page support for NNUE weights and simplify TT mem management Use TT memory functions to allocate memory for the NNUE weights. This should provide a small speed-up on systems where large pages are not automatically used, including Windows and some Linux distributions. Further, since we now have a wrapper for std::aligned_alloc(), we can simplify the TT memory management a bit: - We no longer need to store separate pointers to the hash table and its underlying memory allocation. - We also get to merge the Linux-specific and default implementations of aligned_ttmem_alloc(). Finally, we'll enable the VirtualAlloc code path with large page support also for Win32. STC: https://tests.stockfishchess.org/tests/view/5f66595823a84a47b9036fba LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 14896 W: 1854 L: 1686 D: 11356 Ptnml(0-2): 65, 1224, 4742, 1312, 105 closes https://github.com/official-stockfish/Stockfish/pull/3081 No functional change.
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