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BadFish/src/timeman.h
Disservin d3fc1d835e Refactor elapsed time checks in search
Small improvement of the elapsed time usage in search, makes the code easier to read overall.
Also Search::Worker::iterative_deepening() now only checks the elapsed time once, instead of 3 times in a row.

Non Regression STC:
https://tests.stockfishchess.org/tests/view/6617005d5a4693796d965c3c
LLR: 2.97 (-2.94,2.94) <-1.75,0.25>
Total: 61024 W: 16002 L: 15806 D: 29216
Ptnml(0-2): 243, 6874, 16102, 7030, 263

closes https://github.com/official-stockfish/Stockfish/pull/5163

No functional change
2024-04-21 14:35:01 +02:00

62 lines
1.8 KiB
C++

/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2024 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Stockfish is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TIMEMAN_H_INCLUDED
#define TIMEMAN_H_INCLUDED
#include <cstdint>
#include "misc.h"
#include "types.h"
namespace Stockfish {
class OptionsMap;
namespace Search {
struct LimitsType;
}
// The TimeManagement class computes the optimal time to think depending on
// the maximum available time, the game move number, and other parameters.
class TimeManagement {
public:
void init(Search::LimitsType& limits, Color us, int ply, const OptionsMap& options);
TimePoint optimum() const;
TimePoint maximum() const;
template<typename FUNC>
TimePoint elapsed(FUNC nodes) const {
return useNodesTime ? TimePoint(nodes()) : now() - startTime;
}
void clear();
void advance_nodes_time(std::int64_t nodes);
private:
TimePoint startTime;
TimePoint optimumTime;
TimePoint maximumTime;
std::int64_t availableNodes = 0; // When in 'nodes as time' mode
bool useNodesTime = false; // True if we are in 'nodes as time' mode
};
} // namespace Stockfish
#endif // #ifndef TIMEMAN_H_INCLUDED