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b9f1c9bf3f
This patch will make possible to free mapped TB files with "ucinewgame" command. We wrote this patch specifically to address a problem that arose while running Stockfish with 7-piece tablebases as a kibitzer at TCEC for extended periods of time across multiple games. It was noted that after some time, the NPS of the kibitzing Stockfish (which is usually 3x faster than the Stockfish actually competing) would drop precipitously, eventually falling to preposterously low numbers until restarted. Their eval bot basically inputs FEN, go infinite, stop and loop, it probably didn't do ucinewgame either. As time goes it gradually slowed down and OS starts to use swap, this is not reasonable since the engine only uses 16GB hash and the machine has 1TB physical RAM and does nothing else. Author : noobpwnftw Closes https://github.com/official-stockfish/Stockfish/pull/1790 No functional change.
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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Stockfish, a UCI chess playing engine derived from Glaurung 2.1
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Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
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Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
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Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
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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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#include <iostream>
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#include "bitboard.h"
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#include "position.h"
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#include "search.h"
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#include "thread.h"
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#include "tt.h"
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#include "uci.h"
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#include "syzygy/tbprobe.h"
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namespace PSQT {
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void init();
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}
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int main(int argc, char* argv[]) {
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std::cout << engine_info() << std::endl;
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UCI::init(Options);
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PSQT::init();
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Bitboards::init();
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Position::init();
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Bitbases::init();
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Search::init();
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Pawns::init();
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Threads.set(Options["Threads"]);
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Search::clear(); // After threads are up
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UCI::loop(argc, argv);
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Threads.set(0);
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return 0;
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}
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