X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=e863d3269237b66fab96108422926eb3b9669eb0;hp=dcaa5ca3c29c66f662e55cbd1c16d778eea0bd23;hb=6088ac210883c272832360f28c8922ff1514ef87;hpb=5b8ca1eee77b736c35b418b1cb11da9fc66f83e0 diff --git a/src/thread.h b/src/thread.h index dcaa5ca3..e863d326 100644 --- a/src/thread.h +++ b/src/thread.h @@ -1,7 +1,7 @@ /* 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 + Copyright (C) 2008-2012 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 @@ -20,7 +20,7 @@ #if !defined(THREAD_H_INCLUDED) #define THREAD_H_INCLUDED -#include +#include #include "lock.h" #include "material.h" @@ -30,7 +30,7 @@ #include "search.h" const int MAX_THREADS = 32; -const int MAX_ACTIVE_SPLIT_POINTS = 8; +const int MAX_SPLITPOINTS_PER_THREAD = 8; struct SplitPoint { @@ -40,7 +40,6 @@ struct SplitPoint { Depth depth; Value beta; int nodeType; - int ply; int master; Move threatMove; @@ -50,12 +49,12 @@ struct SplitPoint { // Shared data Lock lock; + volatile uint64_t slavesMask; volatile int64_t nodes; volatile Value alpha; volatile Value bestValue; volatile int moveCount; - volatile bool is_betaCutoff; - volatile bool is_slave[MAX_THREADS]; + volatile bool cutoff; }; @@ -69,28 +68,24 @@ struct Thread { void wake_up(); bool cutoff_occurred() const; bool is_available_to(int master) const; - void idle_loop(SplitPoint* sp); + void idle_loop(SplitPoint* sp_master); void main_loop(); void timer_loop(); + void wait_for_stop_or_ponderhit(); - SplitPoint splitPoints[MAX_ACTIVE_SPLIT_POINTS]; + SplitPoint splitPoints[MAX_SPLITPOINTS_PER_THREAD]; MaterialInfoTable materialTable; PawnInfoTable pawnTable; int threadID; int maxPly; Lock sleepLock; WaitCondition sleepCond; - SplitPoint* volatile splitPoint; - volatile int activeSplitPoints; + ThreadHandle handle; + SplitPoint* volatile curSplitPoint; + volatile int splitPointsCnt; volatile bool is_searching; volatile bool do_sleep; - volatile bool do_terminate; - -#if defined(_MSC_VER) - HANDLE handle; -#else - pthread_t handle; -#endif + volatile bool do_exit; }; @@ -115,11 +110,10 @@ public: void set_size(int cnt); void read_uci_options(); bool available_slave_exists(int master) const; - bool split_point_finished(SplitPoint* sp) const; void set_timer(int msec); - void wait_for_stop_or_ponderhit(); + void stop_thinking(); void start_thinking(const Position& pos, const Search::LimitsType& limits, - const std::vector& searchMoves, bool asyncMode); + const std::set& = std::set(), bool async = false); template Value split(Position& pos, Search::Stack* ss, Value alpha, Value beta, Value bestValue, @@ -128,12 +122,12 @@ private: friend struct Thread; Thread threads[MAX_THREADS + 1]; // Last one is used as a timer - Lock threadsLock; + Lock splitLock; + WaitCondition sleepCond; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; int activeThreads; bool useSleepingThreads; - WaitCondition sleepCond; }; extern ThreadsManager Threads;