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Bring the changes closer to official-stockfish/master

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This commit is contained in:
Tomasz Sobczyk
2021-04-19 18:57:21 +02:00
parent 19f712cdbb
commit ba32bd5d70
28 changed files with 451 additions and 840 deletions
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src/uci.cpp
+8 -15
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@@ -33,8 +33,8 @@
#include "tt.h"
#include "uci.h"
#include "tools/gensfen.h"
#include "tools/gensfen_nonpv.h"
#include "tools/training_data_generator.h"
#include "tools/training_data_generator_nonpv.h"
#include "tools/convert.h"
#include "tools/transform.h"
#include "tools/stats.h"
@@ -209,14 +209,7 @@ void UCI::setoption(const std::string& name, const std::string& value)
// The win rate model returns the probability (per mille) of winning given an eval
// and a game-ply. The model fits rather accurately the LTC fishtest statistics.
int UCI::win_rate_model(Value v, int ply) {
// Return win rate in per mille (rounded to nearest)
return int(0.5 + win_rate_model_double(v, ply));
}
// The win rate model returns the probability (per mille) of winning given an eval
// and a game-ply. The model fits rather accurately the LTC fishtest statistics.
double UCI::win_rate_model_double(double v, int ply) {
int win_rate_model(Value v, int ply) {
// The model captures only up to 240 plies, so limit input (and rescale)
double m = std::min(240, ply) / 64.0;
@@ -230,10 +223,10 @@ double UCI::win_rate_model_double(double v, int ply) {
double b = (((bs[0] * m + bs[1]) * m + bs[2]) * m) + bs[3];
// Transform eval to centipawns with limited range
double x = std::clamp(double(100 * v) / PawnValueEg, -1000.0, 1000.0);
double x = std::clamp(double(100 * v) / PawnValueEg, -1000.0, 1000.0);
// Return win rate in per mille
return 1000.0 / (1 + std::exp((a - x) / b));
// Return win rate in per mille (rounded to nearest)
return int(0.5 + 1000 / (1 + std::exp((a - x) / b)));
}
// --------------------
@@ -327,8 +320,8 @@ void UCI::loop(int argc, char* argv[]) {
else if (token == "eval") trace_eval(pos);
else if (token == "compiler") sync_cout << compiler_info() << sync_endl;
else if (token == "gensfen") Tools::gensfen(is);
else if (token == "gensfen_nonpv") Tools::gensfen_nonpv(is);
else if (token == "generate_training_data") Tools::generate_training_data(is);
else if (token == "generate_training_data") Tools::generate_training_data_nonpv(is);
else if (token == "convert") Tools::convert(is);
else if (token == "convert_bin") Tools::convert_bin(is);
else if (token == "convert_plain") Tools::convert_plain(is);