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038487f95499665bf86ca5343d7a83f970d4b06e
Stockfish/src
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Fanael Linithien 038487f954 Use packed 32-bit MMX operations for updating the PSQT accumulator 
This improves the speed of NNUE by a bit on old hardware that code path
is intended for, like a Pentium III 1.13 GHz:

10 repeats of "./stockfish bench 16 1 13 default depth NNUE":

Before:
54 642 504 897 cycles (± 0.12%)
62 301 937 829 instructions (± 0.03%)

After:
54 320 821 928 cycles (± 0.13%)
62 084 742 699 instructions (± 0.02%)

Speed of go depth 20 from startpos:

Before: 53103 nps
After: 53856 nps

closes https://github.com/official-stockfish/Stockfish/pull/3476

No functional change.
2021-05-19 19:34:44 +02:00
..
incbin
Embed default net, and simplify using non-default nets
2020-08-29 21:56:00 +02:00
nnue
Use packed 32-bit MMX operations for updating the PSQT accumulator
2021-05-19 19:34:44 +02:00
syzygy
Small cleanups (march 2021)
2021-03-24 17:11:06 +01:00
benchmark.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
bitbase.cpp
Small cleanups (march 2021)
2021-03-24 17:11:06 +01:00
bitboard.cpp
Small clean-up
2021-03-31 08:12:25 +02:00
bitboard.h
Small clean-up
2021-03-31 08:12:25 +02:00
endgame.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
endgame.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
evaluate.cpp
New NNUE architecture and net
2021-05-18 18:06:23 +02:00
evaluate.h
New NNUE architecture and net
2021-05-18 18:06:23 +02:00
main.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
Makefile
New NNUE architecture and net
2021-05-18 18:06:23 +02:00
material.cpp
Small cleanups (march 2021)
2021-03-24 17:11:06 +01:00
material.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
misc.cpp
E2K: added support for MCST Elbrus 2000 CPU architecture
2021-05-11 19:45:14 +02:00
misc.h
Cleanup and simplify NNUE code.
2021-04-25 13:16:30 +02:00
movegen.cpp
Simplify pawn moves generator
2021-04-28 13:38:28 +02:00
movegen.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
movepick.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
movepick.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
pawns.cpp
Small cleanups (march 2021)
2021-03-24 17:11:06 +01:00
pawns.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
position.cpp
Small clean-ups
2021-05-17 10:47:14 +02:00
position.h
Simplify check extension
2021-05-02 17:48:57 +02:00
psqt.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
psqt.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
search.cpp
Do more continuation history based pruning
2021-05-19 19:34:37 +02:00
search.h
Replace distanceFromPv with a better logic
2021-04-06 18:23:35 +02:00
thread_win32_osx.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
thread.cpp
Small cleanups (march 2021)
2021-03-24 17:11:06 +01:00
thread.h
Small clean-ups
2021-05-17 10:47:14 +02:00
timeman.cpp
Change tempo with time and threads
2021-04-28 13:58:46 +02:00
timeman.h
Change tempo with time and threads
2021-04-28 13:58:46 +02:00
tt.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
tt.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
tune.cpp
Remove BoolConditions from tuning code
2021-05-15 09:40:40 +02:00
tune.h
Remove BoolConditions from tuning code
2021-05-15 09:40:40 +02:00
types.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
uci.cpp
Exporting the currently loaded network file
2021-05-11 19:36:11 +02:00
uci.h
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00
ucioption.cpp
Add Stockfish namespace.
2021-03-07 14:26:54 +01:00