Upon changing the number of threads, make sure all threads are bound

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 8b3b8fb4864436c17c6964a24151a85db92f873f..c72f0afbc114930d84691f678399b374fee4554f 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -173,13 +173,7 @@ void Search::clear() {
 
   Time.availableNodes = 0;
   TT.clear();
-
-  for (Thread* th : Threads)
-      th->clear();
-
-  Threads.main()->callsCnt = 0;
-  Threads.main()->previousScore = VALUE_INFINITE;
-  Threads.main()->previousTimeReduction = 1;
+  Threads.clear();
 }
 
 
@@ -557,7 +551,7 @@ namespace {
     // search to overwrite a previous full search TT value, so we use a different
     // position key in case of an excluded move.
     excludedMove = ss->excludedMove;
-    posKey = pos.key() ^ Key(excludedMove);
+    posKey = pos.key() ^ Key(excludedMove << 16); // isn't a very good hash
     tte = TT.probe(posKey, ttHit);
     ttValue = ttHit ? value_from_tt(tte->value(), ss->ply) : VALUE_NONE;
     ttMove =  rootNode ? thisThread->rootMoves[thisThread->PVIdx].pv[0]