mirror of
https://github.com/official-stockfish/Stockfish.git
synced 2026-07-22 12:47:08 +00:00
Linmiao XuandJoost VandeVondele
b55217fd02
Created by updating output weights (256) and biases (8) of the previous main net with values found with spsa around 101k / 120k games at 140+1.4. 264 spsa params: output weights and biases in nn-e8bac1c07a5a.nnue A: 6000, alpha: 0.602, gamma: 0.101 weights: [-127, 127], c_end = 6 biases: [-8192, 8192], c_end = 64 Among the 264 params, 189 weights and all 8 biases were changed. Changes in the weights: - mean: -0.111 +/- 3.57 - range: [-8, 8] Found with the same method as: https://github.com/official-stockfish/Stockfish/pull/5459 Due to the original name (nn-ea8c9128c325.nnue) being too similar to the previous main net (nn-e8bac1c07a5a.nnue) and creating confusion, it was renamed by making non-functional changes to the .nnue file the same way as past nets with: https://github.com/linrock/nnue-namer To verify that bench is the same and view the modified non-functional bytes: ``` echo -e "setoption name EvalFile value nn-ea8c9128c325.nnue\nbench" | ./stockfish echo -e "setoption name EvalFile value nn-31337bea577c.nnue\nbench" | ./stockfish cmp -l nn-ea8c9128c325.nnue nn-31337bea577c.nnue diff <(xxd nn-ea8c9128c325.nnue) <(xxd nn-31337bea577c.nnue) ``` Passed STC: https://tests.stockfishchess.org/tests/view/669564154ff211be9d4ec080 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 57280 W: 15139 L: 14789 D: 27352 Ptnml(0-2): 209, 6685, 14522, 6995, 229 Passed LTC: https://tests.stockfishchess.org/tests/view/669694204ff211be9d4ec1b4 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 63030 W: 16093 L: 15720 D: 31217 Ptnml(0-2): 47, 6766, 17516, 7139, 47 closes https://github.com/official-stockfish/Stockfish/pull/5509 bench 1371485
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/*
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Stockfish, a UCI chess playing engine derived from Glaurung 2.1
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Copyright (C) 2004-2024 The Stockfish developers (see AUTHORS file)
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Stockfish is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Stockfish is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EVALUATE_H_INCLUDED
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#define EVALUATE_H_INCLUDED
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#include <string>
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#include "types.h"
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namespace Stockfish {
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class Position;
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namespace Eval {
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// The default net name MUST follow the format nn-[SHA256 first 12 digits].nnue
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// for the build process (profile-build and fishtest) to work. Do not change the
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// name of the macro or the location where this macro is defined, as it is used
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// in the Makefile/Fishtest.
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#define EvalFileDefaultNameBig "nn-31337bea577c.nnue"
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#define EvalFileDefaultNameSmall "nn-37f18f62d772.nnue"
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namespace NNUE {
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struct Networks;
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struct AccumulatorCaches;
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}
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std::string trace(Position& pos, const Eval::NNUE::Networks& networks);
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int simple_eval(const Position& pos, Color c);
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bool use_smallnet(const Position& pos);
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Value evaluate(const NNUE::Networks& networks,
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const Position& pos,
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Eval::NNUE::AccumulatorCaches& caches,
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int optimism);
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} // namespace Eval
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} // namespace Stockfish
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#endif // #ifndef EVALUATE_H_INCLUDED
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