/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008 Marco Costalba
+ Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-
-////
-//// Includes
-////
-
+#include <algorithm>
#include <cassert>
-#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 };
-
- typedef std::vector<std::string> ComboValues;
-
- struct Option {
-
- std::string name, defaultValue, currentValue;
- OptionType type;
- int minValue, maxValue;
- ComboValues comboValues;
-
- Option(const char* name, const char* defaultValue, OptionType = STRING);
- Option(const char* name, bool defaultValue, OptionType = CHECK);
- Option(const char* name, int defaultValue, int minValue, int maxValue);
- };
-
- typedef std::vector<Option> Options;
-
- ///
- /// Constants
- ///
-
- // load_defaults populates the options vector with the hard
- // coded names and default values.
-
- void load_defaults(Options& o) {
-
- o.push_back(Option("Use Search Log", false));
- o.push_back(Option("Search Log Filename", "SearchLog.txt"));
- o.push_back(Option("Book File", "book.bin"));
- o.push_back(Option("Mobility (Middle Game)", 100, 0, 200));
- o.push_back(Option("Mobility (Endgame)", 100, 0, 200));
- o.push_back(Option("Pawn Structure (Middle Game)", 100, 0, 200));
- o.push_back(Option("Pawn Structure (Endgame)", 100, 0, 200));
- o.push_back(Option("Passed Pawns (Middle Game)", 100, 0, 200));
- o.push_back(Option("Passed Pawns (Endgame)", 100, 0, 200));
- o.push_back(Option("Aggressiveness", 100, 0, 200));
- o.push_back(Option("Cowardice", 100, 0, 200));
- o.push_back(Option("King Safety Curve", "Quadratic", COMBO));
-
- o.back().comboValues.push_back("Quadratic");
- o.back().comboValues.push_back("Linear"); /*, "From File"*/
-
- o.push_back(Option("King Safety Coefficient", 40, 1, 100));
- o.push_back(Option("King Safety X Intercept", 0, 0, 20));
- o.push_back(Option("King Safety Max Slope", 30, 10, 100));
- o.push_back(Option("King Safety Max Value", 500, 100, 1000));
- o.push_back(Option("Queen Contact Check Bonus", 4, 0, 8));
- o.push_back(Option("Rook Contact Check Bonus", 2, 0, 4));
- o.push_back(Option("Queen Check Bonus", 2, 0, 4));
- o.push_back(Option("Rook Check Bonus", 1, 0, 4));
- o.push_back(Option("Bishop Check Bonus", 1, 0, 4));
- o.push_back(Option("Knight Check Bonus", 1, 0, 4));
- o.push_back(Option("Discovered Check Bonus", 3, 0, 8));
- o.push_back(Option("Mate Threat Bonus", 3, 0, 8));
- o.push_back(Option("Check Extension (PV nodes)", 2, 0, 2));
- o.push_back(Option("Check Extension (non-PV nodes)", 1, 0, 2));
- o.push_back(Option("Single Reply Extension (PV nodes)", 2, 0, 2));
- o.push_back(Option("Single Reply Extension (non-PV nodes)", 2, 0, 2));
- o.push_back(Option("Mate Threat Extension (PV nodes)", 0, 0, 2));
- o.push_back(Option("Mate Threat Extension (non-PV nodes)", 0, 0, 2));
- o.push_back(Option("Pawn Push to 7th Extension (PV nodes)", 1, 0, 2));
- o.push_back(Option("Pawn Push to 7th Extension (non-PV nodes)", 1, 0, 2));
- o.push_back(Option("Passed Pawn Extension (PV nodes)", 1, 0, 2));
- o.push_back(Option("Passed Pawn Extension (non-PV nodes)", 0, 0, 2));
- o.push_back(Option("Pawn Endgame Extension (PV nodes)", 2, 0, 2));
- o.push_back(Option("Pawn Endgame Extension (non-PV nodes)", 2, 0, 2));
- o.push_back(Option("Full Depth Moves (PV nodes)", 14, 1, 100));
- o.push_back(Option("Full Depth Moves (non-PV nodes)", 3, 1, 100));
- o.push_back(Option("Threat Depth", 5, 0, 100));
- o.push_back(Option("Selective Plies", 7, 0, 10));
- o.push_back(Option("Futility Pruning (Main Search)", true));
- o.push_back(Option("Futility Pruning (Quiescence Search)", true));
- o.push_back(Option("Futility Margin 0", 50, 0, 1000));
- o.push_back(Option("Futility Margin 1", 100, 0, 1000));
- o.push_back(Option("Futility Margin 2", 300, 0, 1000));
- o.push_back(Option("Maximum Razoring Depth", 3, 0, 4));
- o.push_back(Option("Razoring Margin", 300, 150, 600));
- o.push_back(Option("LSN filtering", false));
- o.push_back(Option("LSN Time Margin (sec)", 4, 1, 10));
- o.push_back(Option("LSN Value Margin", 200, 100, 600));
- o.push_back(Option("Randomness", 0, 0, 10));
- o.push_back(Option("Minimum Split Depth", 4, 4, 7));
- o.push_back(Option("Maximum Number of Threads per Split Point", 5, 4, 8));
- o.push_back(Option("Threads", 1, 1, 8));
- o.push_back(Option("Hash", 32, 4, 4096));
- o.push_back(Option("Clear Hash", false, BUTTON));
- o.push_back(Option("Ponder", true));
- o.push_back(Option("OwnBook", true));
- o.push_back(Option("MultiPV", 1, 1, 500));
- o.push_back(Option("UCI_ShowCurrLine", false));
- o.push_back(Option("UCI_Chess960", false));
- }
-
- ///
- /// Variables
- ///
-
- Options options;
-
- // Local functions
- Options::iterator option_with_name(const std::string& optionName);
-
- // stringify converts a value of type T to a std::string
- template<typename T>
- std::string stringify(const T& v) {
-
- std::ostringstream ss;
- ss << v;
- return ss.str();
- }
-
- // We want conversion from a bool value to be "true" or "false",
- // not "1" or "0", so add a specialization for bool type.
- template<>
- std::string stringify<bool>(const bool& v) {
-
- return v ? "true" : "false";
- }
-
- // get_option_value implements the various get_option_value_<type>
- // functions defined later, because only the option value
- // type changes a template seems a proper solution.
-
- template<typename T>
- T get_option_value(const std::string& optionName) {
-
- T ret = T();
- Options::iterator it = option_with_name(optionName);
-
- if (it != options.end())
- {
- std::istringstream ss(it->currentValue);
- ss >> ret;
- }
- return ret;
- }
-
- // Unfortunatly we need a specialization to convert "false" and "true"
- // to proper bool values. The culprit is that we use a non standard way
- // to store a bool value in a string, in particular we use "false" and
- // "true" instead of "0" and "1" due to how UCI protocol works.
-
- template<>
- bool get_option_value<bool>(const std::string& optionName) {
-
- Options::iterator it = option_with_name(optionName);
-
- return it != options.end() && it->currentValue == "true";
- }
-}
-
-////
-//// 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.
- Options::iterator it = option_with_name("Threads");
+UCI::OptionsMap Options; // Global object
- assert(it != options.end());
+namespace UCI {
- it->defaultValue = stringify(Min(cpu_count(), 7));
- it->currentValue = stringify(Min(cpu_count(), 7));
+/// '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(); }
- // 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)
- {
- it = option_with_name("Minimum Split Depth");
- assert(it != options.end());
+/// Our case insensitive less() function as required by UCI protocol
+bool ci_less(char c1, char c2) { return tolower(c1) < tolower(c2); }
- it->defaultValue = "6";
- it->currentValue = "6";
- }
+bool CaseInsensitiveLess::operator() (const string& s1, const string& s2) const {
+ return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(), s2.end(), ci_less);
}
-/// 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 (Options::iterator it = options.begin(); it != options.end(); ++it)
- {
- std::cout << "option name " << it->name
- << " type " << optionTypeName[it->type];
-
- if (it->type != BUTTON)
- {
- std::cout << " default " << it->defaultValue;
-
- if (it->type == SPIN)
- std::cout << " min " << it->minValue
- << " max " << it->maxValue;
-
- else if (it->type == COMBO)
- for(ComboValues::iterator itc = it->comboValues.begin();
- itc != it->comboValues.end(); ++itc)
- std::cout << " var " << *itc;
- }
- std::cout << std::endl;
- }
+/// 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_bool() returns the current value of a UCI parameter of
-/// type "check".
-bool get_option_value_bool(const std::string& optionName) {
+/// 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.
- return get_option_value<bool>(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_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.
+ if (o.type != "button")
+ os << " default " << o.defaultValue;
-int get_option_value_int(const std::string& optionName) {
+ if (o.type == "spin")
+ os << " min " << o.min << " max " << o.max;
- return get_option_value<int>(optionName);
+ break;
+ }
+ return os;
}
-/// 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".
+/// Option c'tors and conversion operators
-const std::string get_option_value_string(const std::string& optionName) {
+Option::Option(const char* v, Fn* f) : type("string"), min(0), max(0), idx(Options.size()), on_change(f)
+{ defaultValue = currentValue = v; }
- return get_option_value<std::string>(optionName);
-}
-
-
-/// button_was_pressed() tests whether a UCI parameter of type "button" has
-/// been selected since the last time the function was called.
-
-bool button_was_pressed(const std::string& buttonName) {
-
- 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) {
- Options::iterator it = option_with_name(optionName);
-
- if (it != options.end())
- it->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 {
+/// 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.
- // Define constructors of Option class.
+Option& Option::operator=(const string& v) {
- Option::Option(const char* nm, const char* def, OptionType t)
- : name(nm), defaultValue(def), currentValue(def), type(t), minValue(0), maxValue(0) {}
+ assert(!type.empty());
- Option::Option(const char* nm, bool def, OptionType t)
- : name(nm), defaultValue(stringify(def)), currentValue(stringify(def)), type(t), 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;
- Option::Option(const char* nm, int def, int minv, int maxv)
- : name(nm), defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), minValue(minv), maxValue(maxv) {}
+ if (type != "button")
+ currentValue = v;
- // option_with_name() tries to find a UCI option with a given
- // name. It returns an iterator to the UCI option or to options.end(),
- // depending on whether an option with the given name exists.
+ if (on_change)
+ (*on_change)(*this);
- Options::iterator option_with_name(const std::string& optionName) {
-
- for (Options::iterator it = options.begin(); it != options.end(); ++it)
- if (it->name == optionName)
- return it;
-
- return options.end();
- }
+ return *this;
}
+
+} // namespace UCI
projects / stockfish / blobdiff