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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
62 lines
1.8 KiB
C++
62 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 TIMEMAN_H_INCLUDED
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#define TIMEMAN_H_INCLUDED
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#include <cstdint>
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#include "misc.h"
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#include "types.h"
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namespace Stockfish {
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class OptionsMap;
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namespace Search {
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struct LimitsType;
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}
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// The TimeManagement class computes the optimal time to think depending on
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// the maximum available time, the game move number, and other parameters.
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class TimeManagement {
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public:
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void init(Search::LimitsType& limits, Color us, int ply, const OptionsMap& options);
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TimePoint optimum() const;
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TimePoint maximum() const;
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template<typename FUNC>
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TimePoint elapsed(FUNC nodes) const {
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return useNodesTime ? TimePoint(nodes()) : now() - startTime;
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}
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void clear();
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void advance_nodes_time(std::int64_t nodes);
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private:
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TimePoint startTime;
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TimePoint optimumTime;
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TimePoint maximumTime;
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std::int64_t availableNodes = 0; // When in 'nodes as time' mode
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bool useNodesTime = false; // True if we are in 'nodes as time' mode
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};
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} // namespace Stockfish
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#endif // #ifndef TIMEMAN_H_INCLUDED
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