2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2020 The Stockfish developers (see AUTHORS file)
5 Stockfish is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 Stockfish is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 // Class for difference calculation of NNUE evaluation function
21 #ifndef NNUE_ACCUMULATOR_H_INCLUDED
22 #define NNUE_ACCUMULATOR_H_INCLUDED
24 #include "nnue_architecture.h"
26 namespace Eval::NNUE {
28 // Class that holds the result of affine transformation of input features
29 struct alignas(kCacheLineSize) Accumulator {
31 accumulation[2][kRefreshTriggers.size()][kTransformedFeatureDimensions];
32 bool computed_accumulation;
35 } // namespace Eval::NNUE
37 #endif // NNUE_ACCUMULATOR_H_INCLUDED