Dev Builds » 20121209-1215

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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 04:55:21 1989669 2745 9 2474 262 -507.87 ± 21.12
ncm-et-4 04:55:23 1981663 2775 11 2494 270 -502.18 ± 20.8
ncm-et-7 01:56:39 2024590 1108 3 1010 95 -528.4 ± 35.35
ncm-et-9 04:55:33 1992368 2746 10 2498 238 -522.89 ± 22.16
ncm-et-10 04:55:27 1984434 2767 16 2503 248 -509.33 ± 21.67
ncm-et-11 01:56:35 2026009 1124 4 1024 96 -525.68 ± 35.14
ncm-et-12 01:56:27 2007560 1122 1 1009 112 -508.59 ± 32.47
ncm-et-13 04:55:41 1995662 2799 9 2527 263 -510.78 ± 21.08
ncm-et-15 04:55:25 1988603 2814 7 2550 257 -518.38 ± 21.33
20000 70 18089 1841 -513.25 ± 7.94

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
114494 ncm-et-9 2020-02-04 17:52 00:16:15 1961410 150 0 138 12 -552.06 ± 109.54 ↓
114493 ncm-et-10 2020-02-04 17:52 00:16:25 1959849 158 1 141 16 -487.58 ± 91.52 ↓
114492 ncm-et-3 2020-02-04 17:52 00:16:27 1962150 155 0 139 16 -505.67 ± 91.67 ↓
114491 ncm-et-4 2020-02-04 17:51 00:16:53 1955387 156 0 139 17 -495.73 ± 88.41 ↓
114490 ncm-et-15 2020-02-04 17:49 00:19:23 1981831 197 0 178 19 -518.09 ± 83.1 ↓
114489 ncm-et-13 2020-02-04 17:48 00:20:08 1971422 184 0 167 17 -525.92 ± 88.64 ↓
114488 ncm-et-10 2020-02-04 16:58 00:53:17 1961400 500 2 453 45 -515.19 ± 52.03 ↓
114487 ncm-et-4 2020-02-04 16:57 00:53:27 1972042 500 3 446 51 -487.45 ± 48.66 ↓
114486 ncm-et-9 2020-02-04 16:57 00:54:14 1970177 500 3 458 39 -530.72 ± 55.91 ↓
114485 ncm-et-3 2020-02-04 16:56 00:54:48 1963686 500 3 454 43 -515.19 ± 53.15 ↓
114484 ncm-et-13 2020-02-04 16:55 00:52:03 1972505 500 3 452 45 -507.88 ± 51.92 ↓
114483 ncm-et-15 2020-02-04 16:55 00:53:06 1967247 500 3 454 43 -515.19 ± 53.15 ↓
114482 ncm-et-4 2020-02-04 16:02 00:53:34 1968314 500 4 445 51 -481.1 ± 48.55 ↓
114481 ncm-et-9 2020-02-04 16:02 00:53:42 1970637 500 0 454 46 -526.71 ± 51.41 ↓
114480 ncm-et-13 2020-02-04 16:02 00:52:17 1978720 500 0 447 53 -500.82 ± 47.69 ↓
114479 ncm-et-10 2020-02-04 16:02 00:54:51 1957572 500 5 439 56 -460.32 ± 46.18 ↓
114478 ncm-et-3 2020-02-04 16:01 00:53:41 1962922 500 2 444 54 -484.25 ± 47.29 ↓
114477 ncm-et-15 2020-02-04 16:00 00:53:40 1975137 500 2 447 51 -494.03 ± 48.72 ↓
114476 ncm-et-4 2020-02-04 15:07 00:54:47 1968952 500 1 444 55 -487.45 ± 46.83 ↓
114475 ncm-et-15 2020-02-04 15:06 00:52:37 1973760 500 0 446 54 -497.39 ± 47.22 ↓
114474 ncm-et-3 2020-02-04 15:06 00:53:55 1961232 500 1 455 44 -526.72 ± 52.69 ↓
114473 ncm-et-10 2020-02-04 15:06 00:54:18 1955569 500 3 457 40 -526.72 ± 55.18 ↓
114472 ncm-et-13 2020-02-04 15:06 00:54:31 1968474 500 2 457 41 -530.72 ± 54.64 ↓
114471 ncm-et-9 2020-02-04 15:06 00:54:47 1969110 500 1 464 35 -566.17 ± 59.55 ↓
42017 ncm-et-3 2018-06-18 23:59 00:09:44 2024917 90 0 81 9 -511.46 ± 131.56 ↓
42016 ncm-et-9 2018-06-18 23:59 00:10:08 2024753 96 0 85 11 -486.48 ± 114.82 ↓
42015 ncm-et-7 2018-06-18 23:57 00:11:31 2023609 108 0 98 10 -525.51 ± 122.81 ↓
42014 ncm-et-13 2018-06-18 23:57 00:11:35 2024754 115 0 105 10 -536.93 ± 123.0 ↓
42013 ncm-et-10 2018-06-18 23:57 00:11:49 2020347 109 3 97 9 -452.56 ± 119.43 ↓
42012 ncm-et-15 2018-06-18 23:57 00:12:08 2018233 117 0 112 5 -664.28 ± 226.34 ↓
42011 ncm-et-4 2018-06-18 23:56 00:12:56 1997150 119 2 107 10 -481.65 ± 117.64 ↓
42010 ncm-et-11 2018-06-18 23:56 00:13:06 2025408 124 0 112 12 -517.46 ± 109.15 ↓
42009 ncm-et-12 2018-06-18 23:55 00:13:08 1981336 122 0 111 11 -530.35 ± 115.49 ↓
42008 ncm-et-9 2018-06-18 23:05 00:52:22 2023774 500 2 448 50 -497.4 ± 49.23 ↓
42007 ncm-et-3 2018-06-18 23:05 00:52:56 2027046 500 1 453 46 -518.96 ± 51.46 ↓
42006 ncm-et-13 2018-06-18 23:04 00:52:05 2027210 500 3 446 51 -487.45 ± 48.66 ↓
42005 ncm-et-12 2018-06-18 23:03 00:50:53 2021488 500 1 450 49 -507.88 ± 49.77 ↓
42004 ncm-et-15 2018-06-18 23:03 00:52:35 1986595 500 0 457 43 -538.97 ± 53.29 ↓
42003 ncm-et-10 2018-06-18 23:03 00:52:54 2016447 500 2 456 42 -526.72 ± 53.95 ↓
42002 ncm-et-7 2018-06-18 23:03 00:53:35 2024754 500 3 456 41 -522.8 ± 54.48 ↓
42001 ncm-et-11 2018-06-18 23:02 00:52:09 2027702 500 1 460 39 -547.61 ± 56.19 ↓
42000 ncm-et-4 2018-06-18 23:02 00:52:38 1984388 500 1 461 38 -552.08 ± 56.98 ↓
41999 ncm-et-3 2018-06-18 22:10 00:53:50 2025736 500 2 448 50 -497.4 ± 49.23 ↓
41998 ncm-et-9 2018-06-18 22:10 00:54:05 2026718 500 4 451 45 -500.83 ± 51.75 ↓
41997 ncm-et-7 2018-06-18 22:10 00:51:33 2025409 500 0 456 44 -534.79 ± 52.64 ↓
41996 ncm-et-15 2018-06-18 22:10 00:51:56 2017420 500 2 456 42 -526.72 ± 53.95 ↓
41995 ncm-et-10 2018-06-18 22:10 00:51:53 2019860 500 0 460 40 -552.08 ± 55.4 ↓
41994 ncm-et-4 2018-06-18 22:10 00:51:08 2025409 500 0 452 48 -518.95 ± 50.26 ↓
41993 ncm-et-11 2018-06-18 22:10 00:51:20 2024917 500 3 452 45 -507.88 ± 51.92 ↓
41992 ncm-et-12 2018-06-18 22:10 00:52:26 2019858 500 0 448 52 -504.32 ± 48.17 ↓
41991 ncm-et-13 2018-06-18 22:10 00:53:02 2026554 500 1 453 46 -518.96 ± 51.46 ↓

Commit

Commit ID feeafb0a50556654e345a09d16529a5eb7715dc0
Author Marco Costalba
Date 2012-12-09 12:15:50 UTC
Store distinct upper and lower bound scores This is more complex than what I'd like but I was unable to split in small chunks. Here we add 2 slots to TTEntry (valueUpper and depthUpper) so that sizeof(TTEntry) returns to the original 16 bytes and we can pack exactly 4 entries in a 64 bytes cache line. Now we save an upper bound score alongside a lower (exact) score. The idea is to increase TT cut-offs rates becuase there is now an higher probability for a node to use TT info. This patch is highly experimental and probably needs further steps as is hinted by an unrealistic bench number: bench: 2022385
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