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Author SHA1 Message Date
Daylen Yang
81490ebc75 Enable NEON for armv8 2020-08-05 10:45:17 -07:00
Dominik Schlösser
c402fe7d26 apple silicon platform with NEON 
USE_NEON instead of IS_ARM
New platform apple-silicon with default USE_NEON
nnue_common.h includes arm_neon.h for USE_NEON
 2020-08-05 16:45:07 +02:00
Joost VandeVondele
2b8bb8e226 Revert stray functional part of 6e2236c37a 2020-08-05 07:46:45 +02:00
Joost VandeVondele
8a3df0f92f Add and adjust copyright headers/authors. 
Add missing copyright headers, and refer to the AUTHORS file for copyright owners.

Refer to 'The Stockfish developers (see AUTHORS file)' for authors.
 2020-08-05 07:29:12 +02:00
Joost VandeVondele
6e2236c37a Makefile: small follow-up for comp=msys2 removal 2020-08-05 07:20:23 +02:00
Joost VandeVondele
d8d1ecca8c Fixes Makefile issues, #2870 2020-08-04 22:25:01 +02:00
Joost VandeVondele
bb9c6bc6a1 Update default net to nn-97f742aaefcd.nnue 
uploaded by Sergio Vieri

NNUE signature: 4254913
Bench: 4746616
 2020-08-04 08:12:43 +02:00
Joost VandeVondele
97724370e7 Merge branch 'master' into nnue-player-wip 
Bench: 4746616
 2020-08-04 08:03:52 +02:00
Joost VandeVondele
b16db14c87 Merge branch 'netDownloadMakefile' into nnue-player-wip 2020-08-03 20:14:52 +02:00
Joost VandeVondele
2c51afdb14 A new make target to download the default net 
```
make net
```

will download the default net as specified in ucioption.cpp file.

This target assumes that `curl` or `wget` is available (in addition to grep and sed).

Needs some testing on different systems (windows, mac, etc.) to see if the implementation is portable enough.

Note that this is not part executed as part of a `make build` to make sure that a build doesn't need a network connection.
 2020-08-03 14:28:54 +02:00
Joost VandeVondele
1d01b275ce Small Makefile doc fix 2020-08-03 07:23:11 +02:00
Joost VandeVondele
dbbb3fa477 Add info string showing which evaluation is in use 2020-08-02 17:22:19 +02:00
Joost VandeVondele
18686e29c7 Revisit NNUE initialization 
this revisits the initialization of NNUE, basically only changing
the state on the UCI options 'Use NNUE' and 'EvalFile' calling init_NNUE(),
which sets the Eval::useNNUE variable, and loads the network if needed
(i.e. useNNUE is true and the same network is not yet loaded)

init_NNUE is silent (i.e. no info strings), so that it can be called at startup
without confusing certain GUIs.

An error message on wrong setting when asking for (i.e. the net failed to load),
is delayed to the point where everything must be consistent (start of search or eval).
The engine will stop if the settings are wrong at that point.

Also works if the default value of Use NNUE would become true.
 2020-08-02 17:22:19 +02:00
Joost VandeVondele
e45d4f1b65 Small whitespace changes 2020-08-02 16:30:00 +02:00
Joost VandeVondele
f4ecc899d8 Minimal whitespace changes 2020-08-01 22:43:14 +02:00
Dariusz Orzechowski
122c78b521 [NNUE] More cleanup in nnue folder 
No functional change.
 2020-08-01 22:24:26 +02:00
Joost VandeVondele
aa339506db Small target adjustments 2020-08-01 19:19:10 +02:00
Dariusz Orzechowski
292c9efb1d [NNUE] Remove not used network architecture 
No functional change.
 2020-08-01 17:31:20 +02:00
Joost VandeVondele
9f2f46c212 [NNUE] adjust Makefile targets 
clearly differentiate between sse3 and ssse3.
assume popcnt from sse4.
 2020-08-01 17:30:29 +02:00
Joost VandeVondele
61ab908db3 Some coding style changes, white space 2020-08-01 09:25:00 +02:00
Joost VandeVondele
6cd70676b4 Update README.md 
Mostly restores the previous README.md with some info and new UCI options, retaining only the info needed for the player.
The valuable training documentation is best preserved elsewhere.

Comments / fixes welcome.
 2020-08-01 08:27:59 +02:00
Joost VandeVondele
56c9b608c9 Remove unused variable 2020-08-01 08:18:35 +02:00
Joost VandeVondele
dbab8b03cf Recreate Position object for eval 
takes the current option settings into account.

Fixes #2859
Fixes #2579
 2020-07-31 19:16:38 +02:00
Joost VandeVondele
8e28c99f79 Use a global instead of a variable in pos 2020-07-31 15:58:33 +02:00
Joost VandeVondele
e42258db5a Merge branch 'nnue-notemplate2' of https://github.com/dorzechowski/Stockfish into dorzechowski-nnue-notemplate2 2020-07-31 12:19:26 +02:00
Dariusz Orzechowski
69fa1111e6 [NNUE] StateInfo handling speed improvement 
Don't copy NNUE parts of StateInfo when not needed in do_null_move().
Measurement vs master at STC shows only ~3 Elo regression when NNUE
is not used, was ~5 Elo before.

https://tests.stockfishchess.org/tests/view/5f23a9052f7e63962b99f51b
ELO: -3.02 +-1.7 (95%) LOS: 0.0%
Total: 60000 W: 11145 L: 11666 D: 37189
Ptnml(0-2): 1018, 6945, 14494, 6626, 917

No functional change.
 2020-07-31 11:58:13 +02:00
Stefan Geschwentner
9587eeeb5e Tweak cutnode reduction 
Less reduction for second move at non-check CUT node with depth <= 10.

STC:
LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 38680 W: 7490 L: 7245 D: 23945
Ptnml(0-2): 643, 4441, 8967, 4606, 683
https://tests.stockfishchess.org/tests/view/5f21e1782f7e63962b99f451

LTC:
LLR: 2.95 (-2.94,2.94) {0.25,1.75}
Total: 71976 W: 9003 L: 8636 D: 54337
Ptnml(0-2): 440, 6414, 21972, 6663, 499
https://tests.stockfishchess.org/tests/view/5f2245762f7e63962b99f4bd

closes https://github.com/official-stockfish/Stockfish/pull/2868

Bench: 4746616
 2020-07-31 10:12:54 +02:00
Stéphane Nicolet
33f3cfae00 Improve handling of queen imbalance 
We double the bonus for potential threats by minors and rooks against
our queen, in case of "queen vs pieces imbalance". Hopefully this will
improve a little bit the evaluation for this well-known Stockfish weakness.

passed STC:
LLR: 2.93 (-2.94,2.94) {-0.50,1.50}
Total: 72976 W: 14003 L: 13710 D: 45263
Ptnml(0-2): 1218, 8370, 17094, 8513, 1293
https://tests.stockfishchess.org/tests/view/5efa50eb020eec13834a977d

passed LTC:
LLR: 2.93 (-2.94,2.94) {0.25,1.75}
Total: 22232 W: 2779 L: 2560 D: 16893
Ptnml(0-2): 129, 1885, 6896, 2050, 156
https://tests.stockfishchess.org/tests/view/5f1fdd2dc09435d870cb9f13

closes https://github.com/official-stockfish/Stockfish/pull/2864

Bench: 4367349
 2020-07-31 10:01:39 +02:00
UnaiCorzo
62d3106caa Remove late irreversible move extension 
We simplify away the late irreversible move extension, which
does not seem to be necessary in the current master.

STC
LLR: 2.93 (-2.94,2.94) {-1.50,0.50}
Total: 38584 W: 7464 L: 7342 D: 23778
Ptnml(0-2): 581, 4328, 9365, 4424, 594
https://tests.stockfishchess.org/tests/view/5f1c9669c09435d870cb9de9

LTC
LLR: 2.94 (-2.94,2.94) {-1.50,0.50}
Total: 27840 W: 3417 L: 3353 D: 21070
Ptnml(0-2): 120, 2315, 8994, 2363, 128
https://tests.stockfishchess.org/tests/view/5f1d2e22c09435d870cb9e21

closes https://github.com/official-stockfish/Stockfish/pull/2836

bench: 4829420
 2020-07-31 09:55:56 +02:00
protonspring
f0abde241d Remove conditional_more_than_two(). 
This is a functional simplification that removes the conditional_more_than_two()
function, which was quite strange and kooky. Note the very minor change to the bench
value.

See this thread for relevant comments on the passing branch:
protonspring/Stockfish@d89730d...ff35b50

STC
LLR: 2.95 (-2.94,2.94) {-1.50,0.50}
Total: 59760 W: 11411 L: 11311 D: 37038
Ptnml(0-2): 992, 6863, 14044, 7015, 966
https://tests.stockfishchess.org/tests/view/5f179988c09435d870cb9b9a

LTC
LLR: 2.93 (-2.94,2.94) {-1.50,0.50}
Total: 45208 W: 5553 L: 5497 D: 34158
Ptnml(0-2): 315, 4081, 13761, 4127, 320
https://tests.stockfishchess.org/tests/view/5f184847c09435d870cb9bee

closes https://github.com/official-stockfish/Stockfish/pull/2826

Bench: 4578290
 2020-07-31 09:47:24 +02:00
Dariusz Orzechowski
ffae13edff Remove some code unused in the current network architecture 
No functional change.
 2020-07-30 05:05:27 +02:00
mstembera
21d43e9500 Remove some unnecessary declarations and headers. 
bench: 4578298
 2020-07-28 20:08:10 -07:00
NguyenPham
5c616bc46b Change data file extension of nnue networks 
move from .bin (used for polyglot books etc) to .nnue
 2020-07-28 14:02:35 +02:00
Joost VandeVondele
2f459fb161 Add authors to the AUTHORS file 
add missing contributors based on git commit history
 2020-07-28 10:27:07 +02:00
Joost VandeVondele
c8f7fa6a02 [NNUE] update compiler info with flags 
as several new flags are added document compilation specifics under the compiler command.

No functional change.
 2020-07-28 09:28:10 +02:00
Dariusz Orzechowski
7bb14c2489 Clamp NNUE evaluation score 
No functional change.
 2020-07-28 04:30:47 +02:00
Joost VandeVondele
6349062d42 [NNUE] remove evalnn command 
instead eval uses the evaluation according to the state of Use NNUE

No functional change.
 2020-07-27 20:14:25 +02:00
erbsenzaehler
7182c55e5c Update appveyor to use MSVC 2019 2020-07-27 13:09:48 +02:00
Joost VandeVondele
b536b0ac67 [NNUE] init networks also for cmdline use 
`./stockfish go depth 10`

now works if `Use NNUE` defaults to true.

No functional change
 2020-07-27 09:43:19 +02:00
mstembera
60497a85d6 Fix a crash on Use NNUE default true 
This was because the UCI::use_nnue variable was never updated to true.

closes https://github.com/official-stockfish/Stockfish/pull/2843

bench: 4578298
NNUE: 3377227
 2020-07-27 07:17:41 +02:00
Joost VandeVondele
a8bdf69c71 Use _mm_malloc on _WIN32 2020-07-26 22:22:36 +02:00
Joost VandeVondele
a6c614da03 Include header if _MSC_VER 2020-07-26 20:44:47 +02:00
Joost VandeVondele
98ffe0cd97 [NNUE] Wrap aligned_alloc 
For some systems std::aligned_alloc is not available even if c++17 is specified.
Wrap the function and use specific solutions.

Update macosx-version-min to the required minimum.

No functional change.
 2020-07-26 20:32:00 +02:00
Joost VandeVondele
2b0ba70436 [NNUE] update travis CI to use new toolchain 
No functional change.
 2020-07-26 18:03:54 +02:00
Joost VandeVondele
27b87ddf5d [NNUE] use_nue=false for getting the material key 
No functional change.
 2020-07-26 14:57:38 +02:00
Joost VandeVondele
319b8e8e7b Fix unused variable warning 
for certain targets. Only define variable when needed.

No functional change.
 2020-07-26 14:57:38 +02:00
Joost VandeVondele
44461911f7 [NNUE] Add C++17 to appveyor 
update CMakeList.txt to add required C++ standard version.

Fix signature.

the code is up-to-date with master d89730d5c8 adjust signature

Bench: 4578298
 2020-07-26 14:57:29 +02:00
Dariusz Orzechowski
a285850bf6 Fix valgrind issue 
No functional change.
 2020-07-26 08:52:22 +02:00
Dariusz Orzechowski
cae61bbb65 Fix memset/memcpy warnings 
No functional change.
 2020-07-26 08:52:22 +02:00
Joost VandeVondele
ab09c74783 Revert "[NNUE] Update travis clang on linux." 
This reverts commit e3367756b5.
 2020-07-25 19:48:20 +02:00