X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=e71db835734d7bd2bc146b0cf71332e0d9b6ca61;hp=80363fa7f187aac9c65cec13314a879b2c4807a9;hb=b356e0fae3b78e39af2ae8aca6ca6197e8669819;hpb=3d937e1e901c59c04cd5d602c05f72892222ded8 diff --git a/src/thread.h b/src/thread.h index 80363fa7..e71db835 100644 --- a/src/thread.h +++ b/src/thread.h @@ -22,7 +22,6 @@ #include -#include "lock.h" #include "material.h" #include "movepick.h" #include "pawns.h" @@ -30,32 +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; }; @@ -69,11 +69,12 @@ 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; @@ -81,11 +82,11 @@ struct Thread { Lock sleepLock; WaitCondition sleepCond; ThreadHandle handle; - SplitPoint* volatile splitPoint; - volatile int activeSplitPoints; + SplitPoint* volatile curSplitPoint; + volatile int splitPointsCnt; volatile bool is_searching; volatile bool do_sleep; - volatile bool do_terminate; + volatile bool do_exit; }; @@ -110,26 +111,24 @@ 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::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; + Lock splitLock; + WaitCondition sleepCond; Depth minimumSplitDepth; int maxThreadsPerSplitPoint; int activeThreads; bool useSleepingThreads; - WaitCondition sleepCond; }; extern ThreadsManager Threads;