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 |  Subject: Latest abrok Development Versions January 31st 2021 (SF The gift that keeps on giving ) Sun Jan 31, 2021 4:06 pm | |
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Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64 | Author: bmc4
Date: Sun Jan 31 16:00:06 2021 +0100
Timestamp: 1612105206
Tune ordering of moves at internal nodes
We change the relative weights of the function used to order
quiet moves in our MovePicker class.
Passed STC:
LLR: 2.94 (-2.94,2.94) {-0.25,1.25}
Total: 32184 W: 2936 L: 2773 D: 26475 Elo +1.76
Ptnml(0-2): 115, 2196, 11328, 2317, 136
https://tests.stockfishchess.org/tests/view/60161ee1735dd7f0f03530f8
Passed LTC:
LLR: 2.93 (-2.94,2.94) {0.25,1.25}
Total: 33088 W: 1292 L: 1149 D: 30647 Elo +1.50
Ptnml(0-2): 14, 1030, 14318, 1163, 19
https://tests.stockfishchess.org/tests/view/60163146735dd7f0f03530ff
The new weight were chosen after the following SPSA session:
https://tests.stockfishchess.org/tests/view/60136857735dd7f0f0352f6c
Closes https://github.com/official-stockfish/Stockfish/pull/3331
Bench: 4398803
see source | Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64 | Author: bmc4
Date: Sun Jan 31 10:07:02 2021 +0100
Timestamp: 1612084022
Simplify Chess 960 castling
a little cleanup, and small speedup (about 0.3%) for Chess 960.
Verified with perft on a large set of chess960 positions.
Closes https://github.com/official-stockfish/Stockfish/pull/3317
No functional change
see source | Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64 | Author: bmc4
Date: Sun Jan 31 10:04:41 2021 +0100
Timestamp: 1612083881
Speed Up Perft Search
It speeds up generate, and thus perft, roughly by 2-3%.
closes https://github.com/official-stockfish/Stockfish/pull/3312
No functional change
see source | Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64 | Author: bmc4
Date: Sun Jan 31 10:02:10 2021 +0100
Timestamp: 1612083730
Clean Up Castling in gives_check
There is no need to add rto or kto on the Bitboard which represents the pieces.
STC:
LLR: 2.93 (-2.94,2.94) {-1.25,0.25}
Total: 57064 W: 5096 L: 5067 D: 46901 Elo +0.18
Ptnml(0-2): 202, 3862, 20355, 3931, 182
https://tests.stockfishchess.org/tests/view/6005ea2c6019e097de3efa55
LTC:
LLR: 2.92 (-2.94,2.94) {-0.75,0.25}
Total: 30088 W: 1094 L: 1052 D: 27942 Elo +0.48
Ptnml(0-2): 10, 882, 13217, 926, 9
https://tests.stockfishchess.org/tests/view/6006115a6019e097de3efa6e
closes https://github.com/official-stockfish/Stockfish/pull/3311
No functional change.
see source | Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64 | Author: bmc4
Date: Sun Jan 31 10:00:17 2021 +0100
Timestamp: 1612083617
Avoid more expensive legality check
speedup of the code, enough to pass STC, failed LTC.
Passed STC:
LLR: 2.93 (-2.94,2.94) {-0.25,1.25}
Total: 68928 W: 6334 L: 6122 D: 56472 Elo +1.07
Ptnml(0-2): 233, 4701, 24369, 4943, 218
https://tests.stockfishchess.org/tests/view/6002747f6019e097de3ef8dc
Failed LTC:
LLR: -2.96 (-2.94,2.94) {0.25,1.25}
Total: 44560 W: 1702 L: 1675 D: 41183 Elo +0.21
Ptnml(0-2): 25, 1383, 19438, 1408, 26
https://tests.stockfishchess.org/tests/view/6002a4836019e097de3ef8e3
About 1% speedup:
Result of 50 runs
==================
base (...kfish.master) = 2237500 +/- 7428
test (...ckfish.patch) = 2267003 +/- 7017
diff = +29503 +/- 4774
speedup = +0.0132
P(speedup > 0) = 1.0000
closes https://github.com/official-stockfish/Stockfish/pull/3304
No functional change.
see source |
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