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dc7e9f2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | /*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2026 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/>.
*/
#include "tune.h"
#include <algorithm>
#include <iostream>
#include <map>
#include <optional>
#include <sstream>
#include <string>
#include "ucioption.h"
using std::string;
namespace Stockfish {
bool Tune::update_on_last;
const Option* LastOption = nullptr;
OptionsMap* Tune::options;
namespace {
std::map<std::string, int> TuneResults;
std::optional<std::string> on_tune(const Option& o) {
if (!Tune::update_on_last || LastOption == &o)
Tune::read_options();
return std::nullopt;
}
}
void Tune::make_option(OptionsMap* opts, const string& n, int v, const SetRange& r) {
// Do not generate option when there is nothing to tune (ie. min = max)
if (r(v).first == r(v).second)
return;
if (TuneResults.count(n))
v = TuneResults[n];
opts->add(n, Option(v, r(v).first, r(v).second, on_tune));
LastOption = &((*opts)[n]);
// Print formatted parameters, ready to be copy-pasted in Fishtest
std::cout << n << "," //
<< v << "," //
<< r(v).first << "," //
<< r(v).second << "," //
<< (r(v).second - r(v).first) / 20.0 << "," //
<< "0.0020" << std::endl;
}
string Tune::next(string& names, bool pop) {
string name;
do
{
string token = names.substr(0, names.find(','));
if (pop)
names.erase(0, token.size() + 1);
std::stringstream ws(token);
name += (ws >> token, token); // Remove trailing whitespace
} while (std::count(name.begin(), name.end(), '(') - std::count(name.begin(), name.end(), ')'));
return name;
}
template<>
void Tune::Entry<int>::init_option() {
make_option(options, name, value, range);
}
template<>
void Tune::Entry<int>::read_option() {
if (options->count(name))
value = int((*options)[name]);
}
// Instead of a variable here we have a PostUpdate function: just call it
template<>
void Tune::Entry<Tune::PostUpdate>::init_option() {}
template<>
void Tune::Entry<Tune::PostUpdate>::read_option() {
value();
}
} // namespace Stockfish
// Init options with tuning session results instead of default values. Useful to
// get correct bench signature after a tuning session or to test tuned values.
// Just copy fishtest tuning results in a result.txt file and extract the
// values with:
//
// cat results.txt | sed 's/^param: \([^,]*\), best: \([^,]*\).*/ TuneResults["\1"] = int(round(\2));/'
//
// Then paste the output below, as the function body
namespace Stockfish {
void Tune::read_results() { /* ...insert your values here... */ }
} // namespace Stockfish
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