Dev Builds » 20181127-0739

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	08:37:48	1964774	3330	1802	89	1439	+197.59 ± 8.84
ncm-et-4	08:37:51	1961451	3339	1841	81	1417	+203.64 ± 8.91
ncm-et-9	08:37:59	1969622	3353	1919	62	1372	+216.76 ± 9.05
ncm-et-10	08:37:44	1964854	3322	1867	89	1366	+207.57 ± 9.11
ncm-et-13	08:38:08	1974742	3350	1939	73	1338	+218.36 ± 9.2
ncm-et-15	08:38:08	1953940	3306	1816	67	1423	+204.57 ± 8.86
			20000	11184	461	8355	+208.02 ± 3.67

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
60997	ncm-et-15	2018-12-01 23:08	00:48:48	1904279	306	185	9	112	+227.64 ± 32.21	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2887541802 \ -pgnout /tmp/ncm-dbt-20181127-0739-042.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=25.21+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60996	ncm-et-10	2018-12-01 23:06	00:49:53	1965071	322	187	8	127	+217.8 ± 30.05	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 135608092 \ -pgnout /tmp/ncm-dbt-20181127-0739-041.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.43+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60995	ncm-et-3	2018-12-01 23:05	00:51:12	1964455	330	179	7	144	+200.82 ± 27.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1949035736 \ -pgnout /tmp/ncm-dbt-20181127-0739-040.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.43+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60994	ncm-et-4	2018-12-01 23:04	00:52:35	1963843	339	186	8	145	+202.67 ± 27.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2978677827 \ -pgnout /tmp/ncm-dbt-20181127-0739-039.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60993	ncm-et-13	2018-12-01 23:03	00:53:52	1978566	350	197	8	145	+209.91 ± 27.98	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4283449510 \ -pgnout /tmp/ncm-dbt-20181127-0739-038.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.26+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60992	ncm-et-9	2018-12-01 23:02	00:54:58	1976748	353	198	4	151	+214.64 ± 27.1	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1063877090 \ -pgnout /tmp/ncm-dbt-20181127-0739-037.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.28+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60991	ncm-et-15	2018-12-01 21:48	01:18:30	1965395	500	262	9	229	+193.64 ± 21.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 43823403 \ -pgnout /tmp/ncm-dbt-20181127-0739-036.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60990	ncm-et-3	2018-12-01 21:47	01:16:48	1966771	500	269	11	220	+198.34 ± 22.55	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3032316512 \ -pgnout /tmp/ncm-dbt-20181127-0739-035.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60989	ncm-et-4	2018-12-01 21:46	01:16:31	1969947	500	283	15	202	+207.95 ± 23.81	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2834914526 \ -pgnout /tmp/ncm-dbt-20181127-0739-034.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.37+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60988	ncm-et-10	2018-12-01 21:45	01:20:30	1957401	500	291	10	199	+220.88 ± 23.88	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1085058315 \ -pgnout /tmp/ncm-dbt-20181127-0739-033.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.52+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60987	ncm-et-13	2018-12-01 21:43	01:18:24	1977007	500	282	8	210	+213.85 ± 23.08	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3529607623 \ -pgnout /tmp/ncm-dbt-20181127-0739-032.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.28+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60986	ncm-et-9	2018-12-01 21:43	01:17:21	1971572	500	293	8	199	+224.97 ± 23.82	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1334379412 \ -pgnout /tmp/ncm-dbt-20181127-0739-031.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.35+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60985	ncm-et-15	2018-12-01 20:31	01:16:40	1962314	500	279	6	215	+212.86 ± 22.68	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2854748920 \ -pgnout /tmp/ncm-dbt-20181127-0739-030.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60984	ncm-et-3	2018-12-01 20:29	01:17:02	1960615	500	271	13	216	+198.34 ± 22.86	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3946084656 \ -pgnout /tmp/ncm-dbt-20181127-0739-029.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.48+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60983	ncm-et-4	2018-12-01 20:28	01:16:49	1971626	500	274	9	217	+205.04 ± 22.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2645312746 \ -pgnout /tmp/ncm-dbt-20181127-0739-028.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.35+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60982	ncm-et-9	2018-12-01 20:25	01:16:42	1977475	500	282	10	208	+211.87 ± 23.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3939627766 \ -pgnout /tmp/ncm-dbt-20181127-0739-027.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.27+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60981	ncm-et-10	2018-12-01 20:25	01:18:21	1969086	500	280	17	203	+203.11 ± 23.78	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 812842135 \ -pgnout /tmp/ncm-dbt-20181127-0739-026.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.38+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60980	ncm-et-13	2018-12-01 20:24	01:17:48	1972084	500	304	10	186	+234.38 ± 24.81	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 390564750 \ -pgnout /tmp/ncm-dbt-20181127-0739-025.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.34+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60979	ncm-et-15	2018-12-01 19:13	01:16:53	1962624	500	267	14	219	+193.64 ± 22.7	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 850815785 \ -pgnout /tmp/ncm-dbt-20181127-0739-024.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60978	ncm-et-3	2018-12-01 19:11	01:17:06	1971600	500	271	18	211	+193.64 ± 23.29	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 245999391 \ -pgnout /tmp/ncm-dbt-20181127-0739-023.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.35+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60977	ncm-et-4	2018-12-01 19:09	01:18:43	1961998	500	278	7	215	+210.89 ± 22.72	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 445656994 \ -pgnout /tmp/ncm-dbt-20181127-0739-022.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60976	ncm-et-10	2018-12-01 19:08	01:16:08	1965847	500	281	14	205	+206.98 ± 23.59	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1724013592 \ -pgnout /tmp/ncm-dbt-20181127-0739-021.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60975	ncm-et-13	2018-12-01 19:07	01:16:04	1966613	500	288	11	201	+216.85 ± 23.78	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1039926484 \ -pgnout /tmp/ncm-dbt-20181127-0739-020.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60974	ncm-et-9	2018-12-01 19:07	01:17:16	1966305	500	286	13	201	+212.86 ± 23.83	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4216371153 \ -pgnout /tmp/ncm-dbt-20181127-0739-019.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60973	ncm-et-15	2018-12-01 17:53	01:18:52	1965079	500	269	9	222	+200.24 ± 22.36	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1253595680 \ -pgnout /tmp/ncm-dbt-20181127-0739-018.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.43+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60972	ncm-et-3	2018-12-01 17:51	01:18:58	1962302	500	281	8	211	+212.86 ± 23.02	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1616096852 \ -pgnout /tmp/ncm-dbt-20181127-0739-017.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60971	ncm-et-13	2018-12-01 17:50	01:15:48	1975985	500	293	9	198	+223.94 ± 23.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2186562097 \ -pgnout /tmp/ncm-dbt-20181127-0739-016.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.29+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60970	ncm-et-4	2018-12-01 17:50	01:17:25	1962302	500	273	14	213	+199.29 ± 23.07	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2626651814 \ -pgnout /tmp/ncm-dbt-20181127-0739-015.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60969	ncm-et-10	2018-12-01 17:50	01:17:02	1974876	500	274	14	212	+200.24 ± 23.14	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3581855252 \ -pgnout /tmp/ncm-dbt-20181127-0739-014.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.31+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60968	ncm-et-9	2018-12-01 17:49	01:17:28	1965380	500	273	16	211	+197.4 ± 23.25	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 572497028 \ -pgnout /tmp/ncm-dbt-20181127-0739-013.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60967	ncm-et-15	2018-12-01 16:32	01:19:16	1961085	500	273	10	217	+203.11 ± 22.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2789280315 \ -pgnout /tmp/ncm-dbt-20181127-0739-012.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.48+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60966	ncm-et-3	2018-12-01 16:32	01:17:44	1963532	500	269	14	217	+195.51 ± 22.82	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 659576741 \ -pgnout /tmp/ncm-dbt-20181127-0739-011.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.45+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60965	ncm-et-13	2018-12-01 16:32	01:17:22	1976397	500	282	10	208	+211.87 ± 23.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 582370097 \ -pgnout /tmp/ncm-dbt-20181127-0739-010.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.29+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60964	ncm-et-10	2018-12-01 16:31	01:18:02	1959242	500	269	11	220	+198.34 ± 22.55	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 951217180 \ -pgnout /tmp/ncm-dbt-20181127-0739-009.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.50+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60963	ncm-et-9	2018-12-01 16:31	01:16:59	1960775	500	288	6	206	+221.9 ± 23.27	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3113661345 \ -pgnout /tmp/ncm-dbt-20181127-0739-008.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.48+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60962	ncm-et-4	2018-12-01 16:30	01:18:56	1936284	500	290	13	197	+216.85 ± 24.1	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 265213863 \ -pgnout /tmp/ncm-dbt-20181127-0739-007.pgn \ -openings \ file=/home/chess/www/releases/20181201153604/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.79+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60961	ncm-et-3	2018-12-01 15:12	01:18:58	1964148	500	262	18	220	+185.33 ± 22.73	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2984958052 \ -pgnout /tmp/ncm-dbt-20181127-0739-006.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60960	ncm-et-9	2018-12-01 15:12	01:17:15	1969103	500	299	5	196	+234.38 ± 23.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1844922187 \ -pgnout /tmp/ncm-dbt-20181127-0739-005.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.38+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60959	ncm-et-13	2018-12-01 15:12	01:18:50	1976543	500	293	17	190	+215.85 ± 24.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 392529681 \ -pgnout /tmp/ncm-dbt-20181127-0739-004.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.28+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60958	ncm-et-4	2018-12-01 15:12	01:16:52	1964157	500	257	15	228	+183.51 ± 22.19	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1676516431 \ -pgnout /tmp/ncm-dbt-20181127-0739-003.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60957	ncm-et-15	2018-12-01 15:12	01:19:09	1956805	500	281	10	209	+210.89 ± 23.22	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3039652251 \ -pgnout /tmp/ncm-dbt-20181127-0739-002.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.53+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
60956	ncm-et-10	2018-12-01 15:12	01:17:48	1962461	500	285	15	200	+209.91 ± 23.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1318073016 \ -pgnout /tmp/ncm-dbt-20181127-0739-001.pgn \ -openings \ file=/home/chess/www/releases/20181128180048/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20181127-0739 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20181127-0739-de7182f4eee33029a7b79f6b097db06357669127/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish

Commit

Commit ID	de7182f4eee33029a7b79f6b097db06357669127
Author	Steinar H. Gunderson
Date	2018-11-27 07:39:23 UTC
Turn on MADV_RANDOM for Syzygy mmaps (on Unix-like builds) When running on a cloud VM (n1-highcpu-96) with several NVMe SSDs and some non-SSDs for tablebases, I noticed that the average SSD request size was more than 256 kB. This doesn't make a lot of sense for Syzygy tablebases, which have a block size of 32 bytes and very low locality. Seemingly, the tablebase access patterns during probing make the OS, at least Linux, think that readahead is advantageous; normally, it gives up doing readahead if there are too many misses, but it doesn't, perhaps due to the fairly high overall hit rates. (It seems the kernel cannot distinguish between reading a block that was paged in because the userspace wanted it explicitly, and one that was read as part of readahead.) Setting MADV_RANDOM effectively turns off readahead, which causes the request size to drop to 4 kB. In the aforemented cloud VM test, this roughly tripled the amount of I/O requests that were able to go through, while reducing the total traffic from 2.8 GB/sec to 56 MB/sec (moving the bottleneck to the non-SSDs; it seems the SSDs could have sustained many more requests). Closes https://github.com/official-stockfish/Stockfish/pull/1829 No functional change.