X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.h;h=a88bb6d311c6e14474ee7d0cc411025866586555;hp=10d120140843dcd17b1c6977729526a8ae7f4e7d;hb=553655eb073cdd59c726dd77fcf368d499029467;hpb=51e8efdab5f62ebc23e4f7adaea96f619cbca194 diff --git a/src/thread.h b/src/thread.h index 10d12014..a88bb6d3 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" @@ -30,23 +29,23 @@ #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; @@ -54,8 +53,9 @@ struct SplitPoint { volatile int64_t nodes; volatile Value alpha; volatile Value bestValue; + volatile Move bestMove; volatile int moveCount; - volatile bool is_betaCutoff; + volatile bool cutoff; }; @@ -66,14 +66,18 @@ 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_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; @@ -81,8 +85,8 @@ 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_exit; @@ -99,7 +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(); @@ -107,22 +111,23 @@ 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; 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 + Thread* timer; + Thread* threads[MAX_THREADS]; Lock splitLock; WaitCondition sleepCond; Depth minimumSplitDepth;