Dev Builds » 20200822-2037

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 08:39:49 1959112 3298 2445 45 808 +320.98 +/- 11.98
ncm-et-4 08:39:41 1968242 3359 2519 41 799 +328.49 +/- 12.05
ncm-et-9 08:39:41 1969369 3339 2474 49 816 +319.91 +/- 11.92
ncm-et-10 08:39:39 1960633 3308 2441 42 825 +319.14 +/- 11.85
ncm-et-13 08:39:28 1960488 3348 2455 37 856 +316.96 +/- 11.62
ncm-et-15 08:39:33 1968496 3348 2500 43 805 +325.57 +/- 12.0
20000 14834 257 4909 +321.82 +/- 4.85

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
135859 ncm-et-3 2020-08-23 20:07 00:46:48 1959081 298 225 4 69 +331.47 +/- 41.49
135858 ncm-et-10 2020-08-23 20:04 00:50:16 1956177 308 227 3 78 +320.65 +/- 38.86
135857 ncm-et-9 2020-08-23 20:01 00:53:20 1967546 339 254 3 82 +330.55 +/- 37.9
135856 ncm-et-15 2020-08-23 20:00 00:53:42 1959850 348 260 4 84 +326.9 +/- 37.48
135855 ncm-et-13 2020-08-23 20:00 00:53:47 1960923 348 263 2 83 +338.04 +/- 37.61
135854 ncm-et-4 2020-08-23 19:59 00:54:26 1971725 359 267 2 90 +328.82 +/- 36.04
135853 ncm-et-3 2020-08-23 18:48 01:18:30 1958940 500 376 6 118 +330.23 +/- 31.54
135852 ncm-et-10 2020-08-23 18:45 01:17:04 1962316 500 354 8 138 +295.94 +/- 29.1
135851 ncm-et-13 2020-08-23 18:42 01:16:44 1959391 500 378 6 116 +333.32 +/- 31.82
135850 ncm-et-9 2020-08-23 18:42 01:17:18 1970804 500 379 7 114 +333.32 +/- 32.12
135849 ncm-et-15 2020-08-23 18:41 01:17:40 1975136 500 372 6 122 +324.17 +/- 31.0
135848 ncm-et-4 2020-08-23 18:40 01:17:57 1973142 500 362 5 133 +311.06 +/- 29.6
135847 ncm-et-3 2020-08-23 17:28 01:18:26 1958622 500 359 6 135 +305.45 +/- 29.39
135846 ncm-et-10 2020-08-23 17:26 01:18:38 1953128 500 355 8 137 +297.28 +/- 29.21
135845 ncm-et-9 2020-08-23 17:23 01:17:41 1978099 500 377 8 115 +328.7 +/- 31.98
135844 ncm-et-15 2020-08-23 17:23 01:17:41 1976070 500 378 5 117 +334.88 +/- 31.66
135843 ncm-et-13 2020-08-23 17:22 01:19:03 1954502 500 352 7 141 +294.61 +/- 28.75
135842 ncm-et-4 2020-08-23 17:22 01:17:33 1964930 500 380 5 115 +338.04 +/- 31.95
135841 ncm-et-3 2020-08-23 16:08 01:18:59 1953593 500 374 8 118 +324.17 +/- 31.56
135840 ncm-et-9 2020-08-23 16:05 01:17:43 1968004 500 383 9 108 +336.46 +/- 33.02
135839 ncm-et-10 2020-08-23 16:05 01:20:00 1956636 500 391 4 105 +357.94 +/- 33.48
135838 ncm-et-15 2020-08-23 16:04 01:17:20 1962153 500 362 12 126 +301.33 +/- 30.52
135837 ncm-et-4 2020-08-23 16:04 01:16:58 1967863 500 372 5 123 +325.67 +/- 30.84
135836 ncm-et-13 2020-08-23 16:03 01:18:22 1961077 500 368 6 126 +318.25 +/- 30.48
135835 ncm-et-3 2020-08-23 14:48 01:19:16 1958019 500 370 8 122 +318.25 +/- 31.03
135834 ncm-et-9 2020-08-23 14:46 01:17:19 1974050 500 361 10 129 +302.7 +/- 30.16
135833 ncm-et-4 2020-08-23 14:45 01:17:42 1962624 500 389 4 107 +354.5 +/- 33.15
135832 ncm-et-10 2020-08-23 14:45 01:18:36 1964934 500 372 5 123 +325.67 +/- 30.84
135831 ncm-et-15 2020-08-23 14:44 01:18:45 1970791 500 373 7 120 +324.17 +/- 31.28
135830 ncm-et-13 2020-08-23 14:44 01:17:50 1962921 500 354 6 140 +298.62 +/- 28.83
135829 ncm-et-9 2020-08-23 13:28 01:16:58 1962460 500 356 8 136 +298.62 +/- 29.32
135828 ncm-et-3 2020-08-23 13:27 01:19:25 1961691 500 378 5 117 +334.88 +/- 31.66
135827 ncm-et-10 2020-08-23 13:27 01:16:51 1969241 500 368 8 124 +315.35 +/- 30.77
135826 ncm-et-4 2020-08-23 13:27 01:17:30 1967544 500 368 12 120 +309.64 +/- 31.28
135825 ncm-et-13 2020-08-23 13:26 01:16:28 1963532 500 375 6 119 +328.7 +/- 31.4
135824 ncm-et-15 2020-08-23 13:26 01:17:53 1971784 500 369 3 128 +324.17 +/- 30.13
135823 ncm-et-13 2020-08-23 12:08 01:17:14 1961074 500 365 4 131 +316.8 +/- 29.8
135822 ncm-et-15 2020-08-23 12:08 01:16:32 1963693 500 386 6 108 +346.12 +/- 33.02
135821 ncm-et-4 2020-08-23 12:08 01:17:35 1969870 500 381 8 111 +334.88 +/- 32.57
135820 ncm-et-9 2020-08-23 12:08 01:19:22 1964625 500 364 4 132 +315.35 +/- 29.68
135819 ncm-et-10 2020-08-23 12:08 01:18:14 1962001 500 374 6 120 +327.18 +/- 31.27
135818 ncm-et-3 2020-08-23 12:08 01:18:25 1963839 500 363 8 129 +308.24 +/- 30.14

Commit

Commit ID 3542033342f15625f808013b69aa8c2d274a2f91
Author St├ęphane Nicolet
Date 2020-08-22 20:37:50 UTC
Instructions to build on older Macintosh In recent Macs, it is possible to use the Clang compiler provided by Apple to compile Stockfish out of the box, and this is the method used by default in our Makefile (the Makefile sets the macosx-version-min=10.14 flag to select the right libc++ library for the Clang compiler with recent c++17 support). But it is quite possible to compile and run Stockfish on older Macs! Below we describe a method to install a recent GNU compiler on these Macs, to get the c++17 support. We have tested the following procedure to install gcc10 on machines running Mac OS 10.7, Mac OS 10.9 and Mac OS 10.13: 1) install XCode for your machine. 2) install Apple command-line developer tools for XCode, by typing the following command in a Terminal: ``` sudo xcode-select --install ``` 3) go to the Stockfish "src" directory, then try a default build and run Stockfish: ``` make clean make build make net ./stockfish ``` 4) if step 3 worked, congrats! You have a compiler recent enough on your Mac to compile Stockfish. If not, continue with step 5 to install GNU gcc10 :-) 5) install the MacPorts package manager (https://www.macports.org/install.php), for instance using the fast method in the "macOS Package (.pkg) Installer" section of the page. 6) use the "port" command to install the gcc10 package of MacPorts by typing the following command: ``` sudo port install gcc10 ``` With this step, MacPorts will install the gcc10 compiler under the name "g++-mp-10" in the /opt/local/bin directory: ``` which g++-mp-10 /opt/local/bin/g++-mp-10 <--- answer ``` 7) You can now go back to the "src" directory of Stockfish, and try to build Stockfish by pointing at the right compiler: ``` make clean make build COMP=gcc COMPCXX=/opt/local/bin/g++-mp-10 make net ./stockfish ``` 8) Enjoy Stockfish on Macintosh! See this pull request for further discussion: https://github.com/official-stockfish/Stockfish/pull/3049 No functional change
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