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Refactor accumulator storage/updates

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Passed Non-regression STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 115840 W: 29983 L: 29854 D: 56003
Ptnml(0-2): 338, 12990, 31149, 13091, 352
https://tests.stockfishchess.org/tests/view/67d0a044166a3e8781d84223

closes https://github.com/official-stockfish/Stockfish/pull/5927

No functional change
This commit is contained in:
Shawn Xu
2025-03-21 11:12:47 +01:00
committed by Disservin
parent 66aee01bb1
commit fc0e0a44d4
17 changed files with 813 additions and 527 deletions
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src/position.h
+11 -13
View File
@@ -26,8 +26,6 @@
#include <string>
#include "bitboard.h"
#include "nnue/nnue_accumulator.h"
#include "nnue/nnue_architecture.h"
#include "types.h"
namespace Stockfish {
@@ -61,11 +59,6 @@ struct StateInfo {
Bitboard checkSquares[PIECE_TYPE_NB];
Piece capturedPiece;
int repetition;
// Used by NNUE
DirtyPiece dirtyPiece;
Eval::NNUE::Accumulator<Eval::NNUE::TransformedFeatureDimensionsBig> accumulatorBig;
Eval::NNUE::Accumulator<Eval::NNUE::TransformedFeatureDimensionsSmall> accumulatorSmall;
};
@@ -140,11 +133,11 @@ class Position {
Piece captured_piece() const;
// Doing and undoing moves
void do_move(Move m, StateInfo& newSt, const TranspositionTable* tt);
void do_move(Move m, StateInfo& newSt, bool givesCheck, const TranspositionTable* tt);
void undo_move(Move m);
void do_null_move(StateInfo& newSt, const TranspositionTable& tt);
void undo_null_move();
void do_move(Move m, StateInfo& newSt, const TranspositionTable* tt);
DirtyPiece do_move(Move m, StateInfo& newSt, bool givesCheck, const TranspositionTable* tt);
void undo_move(Move m);
void do_null_move(StateInfo& newSt, const TranspositionTable& tt);
void undo_null_move();
// Static Exchange Evaluation
bool see_ge(Move m, int threshold = 0) const;
@@ -187,7 +180,12 @@ class Position {
// Other helpers
void move_piece(Square from, Square to);
template<bool Do>
void do_castling(Color us, Square from, Square& to, Square& rfrom, Square& rto);
void do_castling(Color us,
Square from,
Square& to,
Square& rfrom,
Square& rto,
DirtyPiece* const dp = nullptr);
template<bool AfterMove>
Key adjust_key50(Key k) const;