/*
- 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) 2008-2014 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.
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-
-////
-//// Includes
-////
-
+#include <algorithm>
#include <cassert>
-#include <map>
-#include <string>
+#include <cstdlib>
#include <sstream>
-#include <vector>
+#include "evaluate.h"
#include "misc.h"
#include "thread.h"
+#include "tt.h"
#include "ucioption.h"
+using std::string;
-////
-//// Variables
-////
-
-bool Chess960 = false;
-
-
-////
-//// Local definitions
-////
-
-namespace {
-
- ///
- /// Types
- ///
-
- enum OptionType { SPIN, COMBO, CHECK, STRING, BUTTON, OPTION_TYPE_NONE };
-
- typedef std::vector<std::string> ComboValues;
-
- struct OptionValue
- {
- std::string defaultValue, currentValue;
- OptionType type;
- int minValue, maxValue;
- ComboValues comboValues;
-
- // Helper to convert a bool or an int in a std::string
- template<typename T> std::string stringify(const T& v);
-
- OptionValue(); // this is needed to use a std::map
- OptionValue(const char* defaultValue, OptionType = STRING);
- OptionValue(bool defaultValue);
- OptionValue(int defaultValue, int minValue, int maxValue);
- };
-
- typedef std::map<std::string, OptionValue> Options;
-
- ///
- /// Constants
- ///
-
- // load-defaults populates the options map with the hard
- // coded options names and their default values.
- void load_defaults(Options& options) {
-
- options["Use Search Log"] = OptionValue(false);
- options["Search Log Filename"] = OptionValue("SearchLog.txt");
- options["Book File"] = OptionValue("book.bin");
- options["Mobility (Middle Game)"] = OptionValue(100, 0, 200);
- options["Mobility (Endgame)"] = OptionValue(100, 0, 200);
- options["Pawn Structure (Middle Game)"] = OptionValue(100, 0, 200);
- options["Pawn Structure (Endgame)"] = OptionValue(100, 0, 200);
- options["Passed Pawns (Middle Game)"] = OptionValue(100, 0, 200);
- options["Passed Pawns (Endgame)"] = OptionValue(100, 0, 200);
- options["Aggressiveness"] = OptionValue(100, 0, 200);
- options["Cowardice"] = OptionValue(100, 0, 200);
- options["King Safety Curve"] = OptionValue("Quadratic", COMBO);
-
- options["King Safety Curve"].comboValues.push_back("Quadratic");
- options["King Safety Curve"].comboValues.push_back("Linear"); /*, "From File"*/
-
- options["King Safety Coefficient"] = OptionValue(40, 1, 100);
- options["King Safety X Intercept"] = OptionValue(0, 0, 20);
- options["King Safety Max Slope"] = OptionValue(30, 10, 100);
- options["King Safety Max Value"] = OptionValue(500, 100, 1000);
- options["Queen Contact Check Bonus"] = OptionValue(4, 0, 8);
- options["Rook Contact Check Bonus"] = OptionValue(2, 0, 4);
- options["Queen Check Bonus"] = OptionValue(2, 0, 4);
- options["Rook Check Bonus"] = OptionValue(1, 0, 4);
- options["Bishop Check Bonus"] = OptionValue(1, 0, 4);
- options["Knight Check Bonus"] = OptionValue(1, 0, 4);
- options["Discovered Check Bonus"] = OptionValue(3, 0, 8);
- options["Mate Threat Bonus"] = OptionValue(3, 0, 8);
-
- options["Check Extension (PV nodes)"] = OptionValue(2, 0, 2);
- options["Check Extension (non-PV nodes)"] = OptionValue(1, 0, 2);
- options["Single Reply Extension (PV nodes)"] = OptionValue(2, 0, 2);
- options["Single Reply Extension (non-PV nodes)"] = OptionValue(2, 0, 2);
- options["Mate Threat Extension (PV nodes)"] = OptionValue(2, 0, 2);
- options["Mate Threat Extension (non-PV nodes)"] = OptionValue(0, 0, 2);
- options["Pawn Push to 7th Extension (PV nodes)"] = OptionValue(1, 0, 2);
- options["Pawn Push to 7th Extension (non-PV nodes)"] = OptionValue(1, 0, 2);
- options["Passed Pawn Extension (PV nodes)"] = OptionValue(1, 0, 2);
- options["Passed Pawn Extension (non-PV nodes)"] = OptionValue(0, 0, 2);
- options["Pawn Endgame Extension (PV nodes)"] = OptionValue(2, 0, 2);
- options["Pawn Endgame Extension (non-PV nodes)"] = OptionValue(2, 0, 2);
- options["Full Depth Moves (PV nodes)"] = OptionValue(14, 1, 100);
- options["Full Depth Moves (non-PV nodes)"] = OptionValue(3, 1, 100);
- options["Threat Depth"] = OptionValue(5, 0, 100);
- options["Selective Plies"] = OptionValue(7, 0, 10);
- options["Futility Pruning (Main Search)"] = OptionValue(true);
- options["Futility Pruning (Quiescence Search)"] = OptionValue(true);
- options["Futility Margin 0"] = OptionValue(50, 0, 1000);
- options["Futility Margin 1"] = OptionValue(100, 0, 1000);
- options["Futility Margin 2"] = OptionValue(300, 0, 1000);
- options["Maximum Razoring Depth"] = OptionValue(3, 0, 4);
- options["Razoring Margin"] = OptionValue(300, 150, 600);
- options["Randomness"] = OptionValue(0, 0, 10);
- options["Minimum Split Depth"] = OptionValue(4, 4, 7);
- options["Maximum Number of Threads per Split Point"] = OptionValue(5, 4, 8);
- options["Threads"] = OptionValue(1, 1, 8);
- options["Hash"] = OptionValue(32, 4, 4096);
- options["Clear Hash"] = OptionValue(false);
- options["Ponder"] = OptionValue(true);
- options["OwnBook"] = OptionValue(true);
- options["MultiPV"] = OptionValue(1, 1, 500);
- options["UCI_ShowCurrLine"] = OptionValue(false);
- options["UCI_Chess960"] = OptionValue(false);
- }
-
-
- ///
- /// Variables
- ///
-
- Options options;
-
- // Local functions
- template<typename T> T get_option_value(const std::string& optionName);
-
-}
-
-////
-//// Functions
-////
-
-/// 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.
-
-void init_uci_options() {
-
- load_defaults(options);
-
- // 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.
- assert(options.find("Threads") != options.end());
-
- options["Threads"].defaultValue = Min(cpu_count(), 7);
- options["Threads"].currentValue = 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.
- if(cpu_count() > 4)
- {
- assert(options.find("Minimum Split Depth") != options.end());
-
- options["Minimum Split Depth"].defaultValue = 6;
- options["Minimum Split Depth"].currentValue = 6;
- }
-}
-
-
-/// print_uci_options() prints all the UCI options to the standard output,
-/// in the format defined by the UCI protocol.
-
-void print_uci_options() {
+UCI::OptionsMap Options; // Global object
- static const char optionTypeName[][16] = {
- "spin", "combo", "check", "string", "button"
- };
+namespace UCI {
- for (Options::iterator it = options.begin(); it != options.end(); ++it)
- {
- const OptionValue& o = it->second;
+/// 'On change' actions, triggered by an option's value change
+void on_logger(const Option& o) { start_logger(o); }
+void on_eval(const Option&) { Eval::init(); }
+void on_threads(const Option&) { Threads.read_uci_options(); }
+void on_hash_size(const Option& o) { TT.set_size(o); }
+void on_clear_hash(const Option&) { TT.clear(); }
- std::cout << "option name " << it->first
- << " type " << optionTypeName[o.type];
- if (o.type != BUTTON)
- {
- std::cout << " default " << o.defaultValue;
+/// Our case insensitive less() function as required by UCI protocol
+bool ci_less(char c1, char c2) { return tolower(c1) < tolower(c2); }
- if (o.type == SPIN)
- std::cout << " min " << o.minValue
- << " max " << o.maxValue;
-
- else if (o.type == COMBO)
- for(ComboValues::size_type i = 0; i < o.comboValues.size(); ++i)
- std::cout << " var " << o.comboValues[i];
- }
- std::cout << std::endl;
- }
+bool CaseInsensitiveLess::operator() (const string& s1, const string& s2) const {
+ return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(), s2.end(), ci_less);
}
-/// get_option_value_bool() returns the current value of a UCI parameter of
-/// type "check".
-
-bool get_option_value_bool(const std::string& optionName) {
- return get_option_value<bool>(optionName);
+/// init() initializes the UCI options to their hard-coded default values
+
+void init(OptionsMap& o) {
+
+ o["Write Debug Log"] = Option(false, on_logger);
+ o["Write Search Log"] = Option(false);
+ o["Search Log Filename"] = Option("SearchLog.txt");
+ o["Book File"] = Option("book.bin");
+ o["Best Book Move"] = Option(false);
+ o["Contempt Factor"] = Option(0, -50, 50);
+ o["Mobility (Midgame)"] = Option(100, 0, 200, on_eval);
+ o["Mobility (Endgame)"] = Option(100, 0, 200, on_eval);
+ o["Pawn Structure (Midgame)"] = Option(100, 0, 200, on_eval);
+ o["Pawn Structure (Endgame)"] = Option(100, 0, 200, on_eval);
+ o["Passed Pawns (Midgame)"] = Option(100, 0, 200, on_eval);
+ o["Passed Pawns (Endgame)"] = Option(100, 0, 200, on_eval);
+ o["Space"] = Option(100, 0, 200, on_eval);
+ o["Aggressiveness"] = Option(100, 0, 200, on_eval);
+ o["Cowardice"] = Option(100, 0, 200, on_eval);
+ o["Min Split Depth"] = Option(0, 0, 12, on_threads);
+ o["Max Threads per Split Point"] = Option(5, 4, 8, on_threads);
+ o["Threads"] = Option(1, 1, MAX_THREADS, on_threads);
+ o["Idle Threads Sleep"] = Option(true);
+ o["Hash"] = Option(32, 1, 8192, on_hash_size);
+ o["Clear Hash"] = Option(on_clear_hash);
+ o["Ponder"] = Option(true);
+ o["OwnBook"] = Option(false);
+ o["MultiPV"] = Option(1, 1, 500);
+ o["Skill Level"] = Option(20, 0, 20);
+ o["Emergency Move Horizon"] = Option(40, 0, 50);
+ o["Emergency Base Time"] = Option(60, 0, 30000);
+ o["Emergency Move Time"] = Option(30, 0, 5000);
+ o["Minimum Thinking Time"] = Option(20, 0, 5000);
+ o["Slow Mover"] = Option(70, 10, 1000);
+ o["UCI_Chess960"] = Option(false);
+ o["UCI_AnalyseMode"] = Option(false, on_eval);
}
-/// 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.
+/// operator<<() is used to print all the options default values in chronological
+/// insertion order (the idx field) and in the format defined by the UCI protocol.
-int get_option_value_int(const std::string& optionName) {
-
- return get_option_value<int>(optionName);
-}
+std::ostream& operator<<(std::ostream& os, const OptionsMap& om) {
+ for (size_t idx = 0; idx < om.size(); ++idx)
+ for (OptionsMap::const_iterator it = om.begin(); it != om.end(); ++it)
+ if (it->second.idx == idx)
+ {
+ const Option& o = it->second;
+ os << "\noption name " << it->first << " type " << o.type;
-/// 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".
+ if (o.type != "button")
+ os << " default " << o.defaultValue;
-const std::string get_option_value_string(const std::string& optionName) {
+ if (o.type == "spin")
+ os << " min " << o.min << " max " << o.max;
- return get_option_value<std::string>(optionName);
+ break;
+ }
+ return os;
}
-/// button_was_pressed() tests whether a UCI parameter of type "button" has
-/// been selected since the last time the function was called.
+/// Option c'tors and conversion operators
-bool button_was_pressed(const std::string& buttonName) {
+Option::Option(const char* v, Fn* f) : type("string"), min(0), max(0), idx(Options.size()), on_change(f)
+{ defaultValue = currentValue = v; }
- if (get_option_value<bool>(buttonName))
- {
- set_option_value(buttonName, "false");
- return true;
- }
-
- return false;
-}
+Option::Option(bool v, Fn* f) : type("check"), min(0), max(0), idx(Options.size()), on_change(f)
+{ defaultValue = currentValue = (v ? "true" : "false"); }
+Option::Option(Fn* f) : type("button"), min(0), max(0), idx(Options.size()), on_change(f)
+{}
-/// 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::Option(int v, int minv, int maxv, Fn* f) : type("spin"), min(minv), max(maxv), idx(Options.size()), on_change(f)
+{ std::ostringstream ss; ss << v; defaultValue = currentValue = ss.str(); }
-void set_option_value(const std::string& optionName,
- const std::string& newValue) {
- if (options.find(optionName) != options.end())
- options[optionName].currentValue = newValue;
- else
- std::cout << "No such option: " << optionName << std::endl;
+Option::operator int() const {
+ assert(type == "check" || type == "spin");
+ return (type == "spin" ? atoi(currentValue.c_str()) : currentValue == "true");
}
-
-/// 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");
+Option::operator std::string() const {
+ assert(type == "string");
+ return currentValue;
}
-namespace {
-
- // methods and c'tors of OptionValue class.
-
- template<typename T>
- std::string OptionValue::stringify(const T& v)
- {
- std::ostringstream ss;
- ss << v;
-
- return ss.str();
- }
+/// operator=() updates currentValue and triggers on_change() action. It's up to
+/// the GUI to check for option's limits, but we could receive the new value from
+/// the user by console window, so let's check the bounds anyway.
- OptionValue::OptionValue() {}
+Option& Option::operator=(const string& v) {
- OptionValue::OptionValue(const char* def, OptionType t)
- : defaultValue(def), currentValue(def), type(t), minValue(0), maxValue(0) {}
+ assert(!type.empty());
- OptionValue::OptionValue(bool def)
- : defaultValue(stringify(def)), currentValue(stringify(def)), type(CHECK), minValue(0), maxValue(0) {}
+ if ( (type != "button" && v.empty())
+ || (type == "check" && v != "true" && v != "false")
+ || (type == "spin" && (atoi(v.c_str()) < min || atoi(v.c_str()) > max)))
+ return *this;
- OptionValue::OptionValue(int def, int minv, int maxv)
- : defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), minValue(minv), maxValue(maxv) {}
+ if (type != "button")
+ currentValue = v;
- // get_option_value is the implementation of the various
- // get_option_value_<type>, because only the option value
- // type changes a template is the proper solution.
-
- template<typename T>
- T get_option_value(const std::string& optionName) {
-
- T ret;
-
- if (options.find(optionName) != options.end())
- {
- std::istringstream ss(options[optionName].currentValue);
- ss >> ret;
- }
- return ret;
- }
+ if (on_change)
+ (*on_change)(*this);
+ return *this;
}
+
+} // namespace UCI
projects / stockfish / blobdiff