In split() release the lock before slow search stack copy

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index 6c6ccf7ea9750b6cec2d7b071c8f30e0ca3a1ace..d12ec845c01f4bc4a288bd6bfe076b8652ca9b5b 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -37,6 +37,7 @@
 ////
 
 const int THREAD_MAX = 8;
+const int ACTIVE_SPLIT_POINTS_MAX = 8;
 
 
 ////
@@ -45,15 +46,13 @@ const int THREAD_MAX = 8;
 
 struct SplitPoint {
   SplitPoint *parent;
-  Position pos;
-  SearchStack sstack[THREAD_MAX][PLY_MAX];
+  const Position* pos;
+  SearchStack sstack[THREAD_MAX][PLY_MAX_PLUS_2];
   SearchStack *parentSstack;
   int ply;
   Depth depth;
   volatile Value alpha, beta, bestValue, futilityValue;
-  Value approximateEval;
   bool pvNode;
-  Bitboard dcCandidates;
   int master, slaves[THREAD_MAX];
   Lock lock;
   MovePicker *mp;