Remove "Max Threads per Split Point" UCI option

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index d3dd18679b2a2b9b143caee5cfab79d166094aea..ddeb49021e82977175261f53872fdaac647cf3dd 100644 (file)
--- 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) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
+  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
@@ -67,7 +67,6 @@ struct SplitPoint {
   Depth depth;
   Value beta;
   int nodeType;
-  Move threatMove;
   bool cutNode;
 
   // Const pointers to shared data
@@ -77,7 +76,7 @@ struct SplitPoint {
   // Shared data
   Mutex mutex;
   volatile uint64_t slavesMask;
-  volatile int64_t nodes;
+  volatile uint64_t nodes;
   volatile Value alpha;
   volatile Value bestValue;
   volatile Move bestMove;
@@ -118,7 +117,7 @@ struct Thread : public ThreadBase {
 
   template <bool Fake>
   void split(Position& pos, const Search::Stack* ss, Value alpha, Value beta, Value* bestValue, Move* bestMove,
-             Depth depth, Move threatMove, int moveCount, MovePicker* movePicker, int nodeType, bool cutNode);
+             Depth depth, int moveCount, MovePicker* movePicker, int nodeType, bool cutNode);
 
   SplitPoint splitPoints[MAX_SPLITPOINTS_PER_THREAD];
   Material::Table materialTable;
@@ -143,31 +142,30 @@ struct MainThread : public Thread {
 };
 
 struct TimerThread : public ThreadBase {
-  TimerThread() : msec(0) {}
+  TimerThread() : run(false) {}
   virtual void idle_loop();
-  int msec;
+  bool run;
+  static const int Resolution = 5; // msec between two check_time() calls
 };
 
 
 /// ThreadPool struct handles all the threads related stuff like init, starting,
-/// parking and, the most important, launching a slave thread at a split point.
+/// parking and, most importantly, launching a slave thread at a split point.
 /// All the access to shared thread data is done through this class.
 
 struct ThreadPool : public std::vector<Thread*> {
 
   void init(); // No c'tor and d'tor, threads rely on globals that should
-  void exit(); // be initialized and valid during the whole thread lifetime.
+  void exit(); // be initialized and are valid during the whole thread lifetime.
 
   MainThread* main() { return static_cast<MainThread*>((*this)[0]); }
   void read_uci_options();
   Thread* available_slave(const Thread* master) const;
   void wait_for_think_finished();
-  void start_thinking(const Position&, const Search::LimitsType&,
-                      const std::vector<Move>&, Search::StateStackPtr&);
+  void start_thinking(const Position&, const Search::LimitsType&, Search::StateStackPtr&);
 
   bool sleepWhileIdle;
   Depth minimumSplitDepth;
-  size_t maxThreadsPerSplitPoint;
   Mutex mutex;
   ConditionVariable sleepCondition;
   TimerThread* timer;