2008-08-31 23:59:13 -06:00
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/*
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2008-10-19 10:56:28 -06:00
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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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2011-12-30 05:24:41 -07:00
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Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
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2008-08-31 23:59:13 -06:00
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2008-10-19 10:56:28 -06:00
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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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2009-01-07 06:26:58 -07:00
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2008-10-19 10:56:28 -06:00
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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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2009-01-07 06:26:58 -07:00
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2008-08-31 23:59:13 -06:00
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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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2008-09-18 02:55:35 -06:00
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#include <fstream>
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#include <iostream>
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#include <vector>
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#include "misc.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 "ucioption.h"
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using namespace std;
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2011-12-04 02:53:40 -07:00
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static const char* Defaults[] = {
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"rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",
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2011-07-03 04:32:34 -06:00
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"r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 10",
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"8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - 0 11",
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"4rrk1/pp1n3p/3q2pQ/2p1pb2/2PP4/2P3N1/P2B2PP/4RRK1 b - - 7 19",
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"rq3rk1/ppp2ppp/1bnpb3/3N2B1/3NP3/7P/PPPQ1PP1/2KR3R w - - 7 14",
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"r1bq1r1k/1pp1n1pp/1p1p4/4p2Q/4Pp2/1BNP4/PPP2PPP/3R1RK1 w - - 2 14",
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"r3r1k1/2p2ppp/p1p1bn2/8/1q2P3/2NPQN2/PPP3PP/R4RK1 b - - 2 15",
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"r1bbk1nr/pp3p1p/2n5/1N4p1/2Np1B2/8/PPP2PPP/2KR1B1R w kq - 0 13",
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"r1bq1rk1/ppp1nppp/4n3/3p3Q/3P4/1BP1B3/PP1N2PP/R4RK1 w - - 1 16",
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"4r1k1/r1q2ppp/ppp2n2/4P3/5Rb1/1N1BQ3/PPP3PP/R5K1 w - - 1 17",
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"2rqkb1r/ppp2p2/2npb1p1/1N1Nn2p/2P1PP2/8/PP2B1PP/R1BQK2R b KQ - 0 11",
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"r1bq1r1k/b1p1npp1/p2p3p/1p6/3PP3/1B2NN2/PP3PPP/R2Q1RK1 w - - 1 16",
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"3r1rk1/p5pp/bpp1pp2/8/q1PP1P2/b3P3/P2NQRPP/1R2B1K1 b - - 6 22",
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"r1q2rk1/2p1bppp/2Pp4/p6b/Q1PNp3/4B3/PP1R1PPP/2K4R w - - 2 18",
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"4k2r/1pb2ppp/1p2p3/1R1p4/3P4/2r1PN2/P4PPP/1R4K1 b - - 3 22",
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"3q2k1/pb3p1p/4pbp1/2r5/PpN2N2/1P2P2P/5PP1/Q2R2K1 b - - 4 26"
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};
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/// benchmark() runs a simple benchmark by letting Stockfish analyze a set
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/// of positions for a given limit each. There are five parameters; the
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/// transposition table size, the number of search threads that should
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/// be used, the limit value spent for each position (optional, default is
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/// depth 12), an optional file name where to look for positions in fen
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/// format (defaults are the positions defined above) and the type of the
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/// limit value: depth (default), time in secs or number of nodes.
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void benchmark(int argc, char* argv[]) {
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vector<string> fens;
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Search::LimitsType limits;
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int64_t nodes = 0;
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// Assign default values to missing arguments
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string ttSize = argc > 2 ? argv[2] : "128";
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string threads = argc > 3 ? argv[3] : "1";
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string valStr = argc > 4 ? argv[4] : "12";
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string fenFile = argc > 5 ? argv[5] : "default";
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string valType = argc > 6 ? argv[6] : "depth";
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Options["Hash"] = ttSize;
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Options["Threads"] = threads;
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if (valType == "time")
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limits.movetime = 1000 * atoi(valStr.c_str()); // movetime is in ms
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else if (valType == "nodes")
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limits.nodes = atoi(valStr.c_str());
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else
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limits.depth = atoi(valStr.c_str());
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if (fenFile != "default")
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{
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string fen;
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ifstream file(fenFile.c_str());
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if (!file.is_open())
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{
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cerr << "Unable to open file " << fenFile << endl;
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exit(EXIT_FAILURE);
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}
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while (getline(file, fen))
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if (!fen.empty())
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fens.push_back(fen);
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file.close();
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}
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else
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fens.assign(Defaults, Defaults + 16);
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Time time = Time::current_time();
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for (size_t i = 0; i < fens.size(); i++)
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{
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Position pos(fens[i], false, 0);
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cerr << "\nPosition: " << i + 1 << '/' << fens.size() << endl;
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if (valType == "perft")
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{
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int64_t cnt = Search::perft(pos, limits.depth * ONE_PLY);
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cerr << "\nPerft " << limits.depth << " leaf nodes: " << cnt << endl;
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nodes += cnt;
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}
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else
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{
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Threads.start_searching(pos, limits);
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Threads.wait_for_search_finished();
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nodes += Search::RootPosition.nodes_searched();
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}
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}
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int e = time.elapsed();
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cerr << "\n==========================="
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<< "\nTotal time (ms) : " << e
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<< "\nNodes searched : " << nodes
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<< "\nNodes/second : " << int(nodes / (e / 1000.0)) << endl;
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}
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