X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=a88bb6d311c6e14474ee7d0cc411025866586555;hp=6bccde4c4671425cbd1f1c279c3e1f9c6a5b2f75;hb=553655eb073cdd59c726dd77fcf368d499029467;hpb=a29dd88f7563c5af871d9adc137218c39586b09c diff --git a/src/thread.h b/src/thread.h index 6bccde4c..a88bb6d3 100644 --- a/src/thread.h +++ b/src/thread.h @@ -20,10 +20,8 @@ #if !defined(THREAD_H_INCLUDED) #define THREAD_H_INCLUDED -#include #include -#include "lock.h" #include "material.h" #include "movepick.h" #include "pawns.h" @@ -31,32 +29,33 @@ #include "search.h" const int MAX_THREADS = 32; -const int MAX_ACTIVE_SPLIT_POINTS = 8; +const int MAX_SPLITPOINTS_PER_THREAD = 8; struct SplitPoint { - // Const data after splitPoint has been setup - SplitPoint* parent; + // Const data after split point has been setup const Position* pos; + const Search::Stack* ss; Depth depth; Value beta; int nodeType; - int ply; int master; Move threatMove; // Const pointers to shared data MovePicker* mp; - Search::Stack* ss; + SplitPoint* parent; + // Shared data Lock lock; + volatile uint64_t slavesMask; volatile int64_t nodes; volatile Value alpha; volatile Value bestValue; + volatile Move bestMove; volatile int moveCount; - volatile bool is_betaCutoff; - volatile bool is_slave[MAX_THREADS]; + volatile bool cutoff; }; @@ -67,31 +66,30 @@ struct SplitPoint { struct Thread { + Thread(int id); + ~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; }; @@ -105,7 +103,7 @@ class ThreadsManager { static storage duration are automatically set to zero before enter main() */ public: - Thread& operator[](int threadID) { return threads[threadID]; } + Thread& operator[](int threadID) { return *threads[threadID]; } void init(); void exit(); @@ -113,29 +111,29 @@ public: int min_split_depth() const { return minimumSplitDepth; } int size() const { return activeThreads; } - void set_size(int cnt); + void wake_up(); + void sleep(); 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::set& 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, + Value split(Position& pos, Search::Stack* ss, Value alpha, Value beta, Value bestValue, Move* bestMove, Depth depth, Move threatMove, int moveCount, MovePicker* mp, int nodeType); private: friend struct Thread; - Thread threads[MAX_THREADS + 1]; // Last one is used as a timer - Lock threadsLock; + Thread* timer; + Thread* threads[MAX_THREADS]; + Lock splitLock; + WaitCondition sleepCond; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; int activeThreads; bool useSleepingThreads; - WaitCondition sleepCond; }; extern ThreadsManager Threads;