Reduce lock contention in sp_search_pv()

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index d0c1d8e9519edd6d7966f86cbdd9da6f4b5415d2..899ccfe93ed00d1eb3d21bf8d01aeeaef3ed4ee9 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -51,7 +51,8 @@ struct SplitPoint {
   SearchStack *parentSstack;
   int ply;
   Depth depth;
-  volatile Value alpha, beta, bestValue, futilityValue;
+  volatile Value alpha, beta, bestValue;
+  Value futilityValue;
   bool pvNode;
   int master, slaves[THREAD_MAX];
   Lock lock;