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Only evaluate the PSQT part of the small net for large evals.

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Thanks to Viren6 for suggesting to set complexity to 0.

STC https://tests.stockfishchess.org/tests/view/65d7d6709b2da0226a5a203f
LLR: 2.92 (-2.94,2.94) <0.00,2.00>
Total: 328384 W: 85316 L: 84554 D: 158514
Ptnml(0-2): 1414, 39076, 82486, 39766, 1450

LTC https://tests.stockfishchess.org/tests/view/65dce6d290f639b028a54d2e
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 165162 W: 41918 L: 41330 D: 81914
Ptnml(0-2): 102, 18332, 45124, 18922, 101

closes https://github.com/official-stockfish/Stockfish/pull/5083

bench: 1504003
This commit is contained in:
mstembera
2024-02-29 14:27:00 -08:00
committed by Joost VandeVondele
parent 0a3eb1d8fa
commit 7831131591
6 changed files with 193 additions and 148 deletions
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23
src/position.cpp
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@@ -680,10 +680,14 @@ void Position::do_move(Move m, StateInfo& newSt, bool givesCheck) {
++st->pliesFromNull;
// Used by NNUE
st->accumulatorBig.computed[WHITE] = st->accumulatorBig.computed[BLACK] =
st->accumulatorSmall.computed[WHITE] = st->accumulatorSmall.computed[BLACK] = false;
auto& dp = st->dirtyPiece;
dp.dirty_num = 1;
st->accumulatorBig.computed[WHITE] = st->accumulatorBig.computed[BLACK] =
st->accumulatorBig.computedPSQT[WHITE] = st->accumulatorBig.computedPSQT[BLACK] =
st->accumulatorSmall.computed[WHITE] = st->accumulatorSmall.computed[BLACK] =
st->accumulatorSmall.computedPSQT[WHITE] = st->accumulatorSmall.computedPSQT[BLACK] =
false;
auto& dp = st->dirtyPiece;
dp.dirty_num = 1;
Color us = sideToMove;
Color them = ~us;
@@ -965,10 +969,13 @@ void Position::do_null_move(StateInfo& newSt, TranspositionTable& tt) {
newSt.previous = st;
st = &newSt;
st->dirtyPiece.dirty_num = 0;
st->dirtyPiece.piece[0] = NO_PIECE; // Avoid checks in UpdateAccumulator()
st->accumulatorBig.computed[WHITE] = st->accumulatorBig.computed[BLACK] =
st->accumulatorSmall.computed[WHITE] = st->accumulatorSmall.computed[BLACK] = false;
st->dirtyPiece.dirty_num = 0;
st->dirtyPiece.piece[0] = NO_PIECE; // Avoid checks in UpdateAccumulator()
st->accumulatorBig.computed[WHITE] = st->accumulatorBig.computed[BLACK] =
st->accumulatorBig.computedPSQT[WHITE] = st->accumulatorBig.computedPSQT[BLACK] =
st->accumulatorSmall.computed[WHITE] = st->accumulatorSmall.computed[BLACK] =
st->accumulatorSmall.computedPSQT[WHITE] = st->accumulatorSmall.computedPSQT[BLACK] =
false;
if (st->epSquare != SQ_NONE)
{