/*
- Glaurung, a UCI chess playing engine.
- Copyright (C) 2004-2008 Tord Romstad
+ Stockfish, a UCI chess playing engine derived from Glaurung 2.1
+ Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+ Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
- Glaurung is free software: you can redistribute it and/or modify
+ 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.
-
- Glaurung is distributed in the hope that it will be useful,
+
+ 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/>.
*/
-
-////
-//// Includes
-////
-
-#include <cassert>
-#include <cstdarg>
-#include <cstdio>
+#include <cctype>
+#include <iostream>
+#include <sstream>
#include "misc.h"
#include "thread.h"
#include "ucioption.h"
+using std::string;
+using std::cout;
+using std::endl;
-////
-//// Variables
-////
-
-bool Chess960 = false;
-
-
-////
-//// Local definitions
-////
-
-namespace {
-
- ///
- /// Types
- ///
-
- enum OptionType { SPIN, COMBO, CHECK, STRING, BUTTON, OPTION_TYPE_NONE};
-
- struct Option {
- char name[50], defaultValue[300], currentValue[300];
- OptionType type;
- int minValue, maxValue;
- char comboValues[8][64];
- };
-
-
- ///
- /// Variables
- ///
-
- Option Options[] = {
- { "Use Search Log", "false", "false", CHECK, 0, 0, {""} },
- { "Search Log Filename", "SearchLog.txt", "SearchLog.txt", STRING, 0, 0, {""} },
- { "Book File", "book.bin", "book.bin", STRING, 0, 0, {""} },
- { "Mobility (Middle Game)", "100", "100", SPIN, 0, 200, {""} },
- { "Mobility (Endgame)", "100", "100", SPIN, 0, 200, {""} },
- { "Pawn Structure (Middle Game)", "100", "100", SPIN, 0, 200, {""} },
- { "Pawn Structure (Endgame)", "100", "100", SPIN, 0, 200, {""} },
- { "Passed Pawns (Middle Game)", "100", "100", SPIN, 0, 200, {""} },
- { "Passed Pawns (Endgame)", "100", "100", SPIN, 0, 200, {""} },
- { "Aggressiveness", "100", "100", SPIN, 0, 200, {""} },
- { "Cowardice", "100", "100", SPIN, 0, 200, {""} },
- { "King Safety Curve", "Quadratic", "Quadratic", COMBO, 0, 0,
- { "Quadratic", "Linear" /*, "From File"*/ } },
- { "King Safety Coefficient", "40", "40", SPIN, 1, 100 , {""} },
- { "King Safety X Intercept", "0", "0", SPIN, 0, 20, {""} },
- { "King Safety Max Slope", "30", "30", SPIN, 10, 100, {""} },
- { "King Safety Max Value", "500", "500", SPIN, 100, 1000, {""} },
- { "Queen Contact Check Bonus", "4", "4", SPIN, 0, 8, {""} },
- { "Rook Contact Check Bonus", "2", "2", SPIN, 0, 4, {""} },
- { "Queen Check Bonus", "2", "2", SPIN, 0, 4, {""} },
- { "Rook Check Bonus", "1", "1", SPIN, 0, 4, {""} },
- { "Bishop Check Bonus", "1", "1", SPIN, 0, 4, {""} },
- { "Knight Check Bonus", "1", "1", SPIN, 0, 4, {""} },
- { "Discovered Check Bonus", "3", "3", SPIN, 0, 8, {""} },
- { "Mate Threat Bonus", "3", "3", SPIN, 0, 8, {""} },
- { "Check Extension (PV nodes)", "2", "2", SPIN, 0, 2, {""} },
- { "Check Extension (non-PV nodes)", "1", "1", SPIN, 0, 2, {""} },
- { "Single Reply Extension (PV nodes)", "2", "2", SPIN, 0, 2, {""} },
- { "Single Reply Extension (non-PV nodes)", "2", "2", SPIN, 0, 2, {""} },
- { "Mate Threat Extension (PV nodes)", "0", "0", SPIN, 0, 2, {""} },
- { "Mate Threat Extension (non-PV nodes)", "0", "0", SPIN, 0, 2, {""} },
- { "Pawn Push to 7th Extension (PV nodes)", "1", "1", SPIN, 0, 2, {""} },
- { "Pawn Push to 7th Extension (non-PV nodes)", "1", "1", SPIN, 0, 2, {""} },
- { "Passed Pawn Extension (PV nodes)", "1", "1", SPIN, 0, 2, {""} },
- { "Passed Pawn Extension (non-PV nodes)", "0", "0", SPIN, 0, 2, {""} },
- { "Pawn Endgame Extension (PV nodes)", "2", "2", SPIN, 0, 2, {""} },
- { "Pawn Endgame Extension (non-PV nodes)", "2", "2", SPIN, 0, 2, {""} },
- { "Full Depth Moves (PV nodes)", "14", "14", SPIN, 1, 100, {""} },
- { "Full Depth Moves (non-PV nodes)", "3", "3", SPIN, 1, 100, {""} },
- { "Threat Depth", "5", "5", SPIN, 0, 100, {""} },
- { "Selective Plies", "7", "7", SPIN, 0, 10, {""} },
- { "Futility Pruning (Main Search)", "true", "true", CHECK, 0, 0, {""} },
- { "Futility Pruning (Quiescence Search)", "true", "true", CHECK, 0, 0, {""} },
- { "Futility Margin 0", "50", "50", SPIN, 0, 1000, {""} },
- { "Futility Margin 1", "100", "100", SPIN, 0, 1000, {""} },
- { "Futility Margin 2", "300", "300", SPIN, 0, 1000, {""} },
- { "Maximum Razoring Depth", "3", "3", SPIN, 0, 4, {""} },
- { "Razoring Margin", "300", "300", SPIN, 150, 600, {""} },
- { "Randomness", "0", "0", SPIN, 0, 10, {""} },
- { "Minimum Split Depth", "4", "4", SPIN, 4, 7, {""} },
- { "Maximum Number of Threads per Split Point", "5", "5", SPIN, 4, 8, {""} },
- { "Threads", "1", "1", SPIN, 1, 8, {""} },
- { "Hash", "32", "32", SPIN, 4, 4096, {""} },
- { "Clear Hash", "false", "false", BUTTON, 0, 0, {""} },
- { "Ponder", "true", "true", CHECK, 0, 0, {""} },
- { "OwnBook", "true", "true", CHECK, 0, 0, {""} },
- { "MultiPV", "1", "1", SPIN, 1, 500, {""} },
- { "UCI_ShowCurrLine", "false", "false", CHECK, 0, 0, {""} },
- { "UCI_Chess960", "false", "false", CHECK, 0, 0, {""} },
- { "", "", "", OPTION_TYPE_NONE, 0, 0, {""}}
- };
-
-
- ///
- /// Functions
- ///
-
- Option *option_with_name(const char *optionName);
+OptionsMap Options; // Global object
-}
+// Our case insensitive less() function as required by UCI protocol
+bool CaseInsensitiveLess::operator() (const string& s1, const string& s2) const {
-////
-//// Functions
-////
+ int c1, c2;
+ size_t i = 0;
-/// init_uci_options() initializes the UCI options. Currently, the only
-/// thing this function does is to initialize the default value of the
-/// "Threads" parameter to the number of available CPU cores.
+ while (i < s1.size() && i < s2.size())
+ {
+ c1 = tolower(s1[i]);
+ c2 = tolower(s2[i++]);
-void init_uci_options() {
- Option *o;
-
- o = option_with_name("Threads");
- assert(o != NULL);
-
- // Limit the default value of "Threads" to 7 even if we have 8 CPU cores.
- // According to Ken Dail's tests, Glaurung plays much better with 7 than
- // with 8 threads. This is weird, but it is probably difficult to find out
- // why before I have a 8-core computer to experiment with myself.
- sprintf(o->defaultValue, "%d", Min(cpu_count(), 7));
- sprintf(o->currentValue, "%d", Min(cpu_count(), 7));
-
- // Increase the minimum split depth when the number of CPUs is big.
- // It would probably be better to let this depend on the number of threads
- // instead.
- o = option_with_name("Minimum Split Depth");
- assert(o != NULL);
- if(cpu_count() > 4) {
- sprintf(o->defaultValue, "%d", 6);
- sprintf(o->defaultValue, "%d", 6);
+ if (c1 != c2)
+ return c1 < c2;
}
+ return s1.size() < s2.size();
}
-/// print_uci_options() prints all the UCI options to the standard output,
-/// in the format defined by the UCI protocol.
-
-void print_uci_options() {
- static const char optionTypeName[][16] = {
- "spin", "combo", "check", "string", "button"
- };
- for(Option *o = Options; o->type != OPTION_TYPE_NONE; o++) {
- printf("option name %s type %s", o->name, optionTypeName[o->type]);
- if(o->type != BUTTON) {
- printf(" default %s", o->defaultValue);
- if(o->type == SPIN)
- printf(" min %d max %d", o->minValue, o->maxValue);
- else if(o->type == COMBO)
- for(int i = 0; strlen(o->comboValues[i]) > 0; i++)
- printf(" var %s", o->comboValues[i]);
- }
- printf("\n");
- }
+// stringify() converts a numeric value of type T to a std::string
+template<typename T>
+static string stringify(const T& v) {
+
+ std::ostringstream ss;
+ ss << v;
+ return ss.str();
}
-/// get_option_value_bool() returns the current value of a UCI parameter of
-/// type "check".
+/// init_uci_options() initializes the UCI options to their hard coded default
+/// values and initializes the default value of "Threads" and "Minimum Split Depth"
+/// parameters according to the number of CPU cores.
-bool get_option_value_bool(const std::string &optionName) {
- Option *o = option_with_name(optionName.c_str());
- return o != NULL && strcmp(o->currentValue, "true") == 0;
-}
+void init_uci_options() {
+ Options["Use Search Log"] = Option(false);
+ Options["Search Log Filename"] = Option("SearchLog.txt");
+ Options["Book File"] = Option("book.bin");
+ Options["Best Book Move"] = Option(false);
+ Options["Mobility (Middle Game)"] = Option(100, 0, 200);
+ Options["Mobility (Endgame)"] = Option(100, 0, 200);
+ Options["Pawn Structure (Middle Game)"] = Option(100, 0, 200);
+ Options["Pawn Structure (Endgame)"] = Option(100, 0, 200);
+ Options["Passed Pawns (Middle Game)"] = Option(100, 0, 200);
+ Options["Passed Pawns (Endgame)"] = Option(100, 0, 200);
+ Options["Space"] = Option(100, 0, 200);
+ Options["Aggressiveness"] = Option(100, 0, 200);
+ Options["Cowardice"] = Option(100, 0, 200);
+ Options["Check Extension (PV nodes)"] = Option(2, 0, 2);
+ Options["Check Extension (non-PV nodes)"] = Option(1, 0, 2);
+ Options["Mate Threat Extension (PV nodes)"] = Option(2, 0, 2);
+ Options["Mate Threat Extension (non-PV nodes)"] = Option(2, 0, 2);
+ Options["Pawn Push to 7th Extension (PV nodes)"] = Option(1, 0, 2);
+ Options["Pawn Push to 7th Extension (non-PV nodes)"] = Option(1, 0, 2);
+ Options["Passed Pawn Extension (PV nodes)"] = Option(1, 0, 2);
+ Options["Passed Pawn Extension (non-PV nodes)"] = Option(0, 0, 2);
+ Options["Pawn Endgame Extension (PV nodes)"] = Option(2, 0, 2);
+ Options["Pawn Endgame Extension (non-PV nodes)"] = Option(2, 0, 2);
+ Options["Minimum Split Depth"] = Option(4, 4, 7);
+ Options["Maximum Number of Threads per Split Point"] = Option(5, 4, 8);
+ Options["Threads"] = Option(1, 1, MAX_THREADS);
+ Options["Use Sleeping Threads"] = Option(true);
+ Options["Hash"] = Option(32, 4, 8192);
+ Options["Clear Hash"] = Option(false, "button");
+ Options["Ponder"] = Option(true);
+ Options["OwnBook"] = Option(true);
+ Options["MultiPV"] = Option(1, 1, 500);
+ Options["Emergency Move Horizon"] = Option(40, 0, 50);
+ Options["Emergency Base Time"] = Option(200, 0, 30000);
+ Options["Emergency Move Time"] = Option(70, 0, 5000);
+ Options["Minimum Thinking Time"] = Option(20, 0, 5000);
+ Options["UCI_Chess960"] = Option(false);
+ Options["UCI_AnalyseMode"] = Option(false);
+
+ // Set some SMP parameters accordingly to the detected CPU count
+ Option& thr = Options["Threads"];
+ Option& msd = Options["Minimum Split Depth"];
+
+ thr.defaultValue = thr.currentValue = stringify(cpu_count());
+
+ if (cpu_count() >= 8)
+ msd.defaultValue = msd.currentValue = stringify(7);
+}
-/// get_option_value_int() returns the value of a UCI parameter as an integer.
-/// Normally, this function will be used for a parameter of type "spin", but
-/// it could also be used with a "combo" parameter, where all the available
-/// values are integers.
-int get_option_value_int(const std::string &optionName) {
- Option *o = option_with_name(optionName.c_str());
- return atoi(o->currentValue);
-}
+/// options_to_uci() returns a string with all the UCI options in chronological
+/// insertion order (the idx field) and in the format defined by the UCI protocol.
+string options_to_uci() {
-/// get_option_value_string() returns the current value of a UCI parameter as
-/// a string. It is used with parameters of type "combo" and "string".
+ std::stringstream s;
-const std::string get_option_value_string(const std::string &optionName) {
- Option *o = option_with_name(optionName.c_str());
- return o->currentValue;
-}
+ for (size_t i = 0; i <= Options.size(); i++)
+ for (OptionsMap::const_iterator it = Options.begin(); it != Options.end(); ++it)
+ if (it->second.idx == i)
+ {
+ const Option& o = it->second;
+ s << "\noption name " << it->first << " type " << o.type;
+ if (o.type != "button")
+ s << " default " << o.defaultValue;
-/// button_was_pressed() tests whether a UCI parameter of type "button" has
-/// been selected since the last time the function was called.
+ if (o.type == "spin")
+ s << " min " << o.minValue << " max " << o.maxValue;
-bool button_was_pressed(const std::string &buttonName) {
- if(get_option_value_bool(buttonName)) {
- set_option_value(buttonName, "false");
- return true;
- }
- else
- return false;
+ break;
+ }
+ return s.str();
}
-/// set_option_value() inserts a new value for a UCI parameter. Note that
-/// the function does not check that the new value is legal for the given
-/// parameter: This is assumed to be the responsibility of the GUI.
+/// Option class c'tors
-void set_option_value(const std::string &optionName,
- const std::string &newValue) {
- Option *o = option_with_name(optionName.c_str());
+Option::Option(const char* def) : type("string"), idx(Options.size()), minValue(0), maxValue(0)
+{ defaultValue = currentValue = def; }
- if(o != NULL)
- strcpy(o->currentValue, newValue.c_str());
- else
- std::cout << "No such option: " << optionName << std::endl;
-}
+Option::Option(bool def, string t) : type(t), idx(Options.size()), minValue(0), maxValue(0)
+{ defaultValue = currentValue = (def ? "true" : "false"); }
+Option::Option(int def, int minv, int maxv) : type("spin"), idx(Options.size()), minValue(minv), maxValue(maxv)
+{ defaultValue = currentValue = stringify(def); }
-/// push_button() is used to tell the engine that a UCI parameter of type
-/// "button" has been selected:
-void push_button(const std::string &buttonName) {
- set_option_value(buttonName, "true");
-}
+/// set_value() updates currentValue of the Option object. Normally it's up to
+/// the GUI to check for option's limits, but we could receive the new value
+/// directly from the user by teminal window. So let's check the bounds anyway.
+
+void Option::set_value(const string& value) {
+
+ assert(!type.empty());
+ if (value.empty())
+ return;
-namespace {
+ if ( (type == "check" || type == "button")
+ != (value == "true" || value == "false"))
+ return;
- // option_with_name() tries to find a UCI option with a given
- // name. It returns a pointer to the UCI option or the null pointer,
- // depending on whether an option with the given name exists.
-
- Option *option_with_name(const char *optionName) {
- for(Option *o = Options; o->type != OPTION_TYPE_NONE; o++)
- if(strcmp(o->name, optionName) == 0)
- return o;
- return NULL;
+ if (type == "spin")
+ {
+ int v = atoi(value.c_str());
+ if (v < minValue || v > maxValue)
+ return;
}
+ currentValue = value;
}
projects / stockfish / blobdiff