X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.cpp;h=6d07ec35f3e29d1e83295c7417481dac7c9ffead;hp=cb3f8223aacf26a93199c7c2ed6cef1b8a02916c;hb=44432f67d724573d0f6e3cfea6165c9b1d125d72;hpb=d66b765eb6b3725b468a3c5f8f2cdb9693fd6bdf

diff --git a/src/thread.cpp b/src/thread.cpp
index cb3f8223..6d07ec35 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -319,6 +319,7 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
   sp->master = master;
   sp->cutoff = false;
   sp->slavesMask = 1ULL << master->idx;
+  sp->allSlavesMask = 1ULL << master->idx;
   sp->depth = depth;
   sp->bestMove = *bestMove;
   sp->threatMove = threatMove;
@@ -347,6 +348,7 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
       if (threads[i]->is_available_to(master))
       {
           sp->slavesMask |= 1ULL << i;
+          sp->allSlavesMask |= 1ULL << i;
           threads[i]->curSplitPoint = sp;
           threads[i]->is_searching = true; // Slave leaves idle_loop()
 
@@ -354,7 +356,10 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
               threads[i]->wake_up();
 
           if (++slavesCnt + 1 >= maxThreadsPerSplitPoint) // Master is always included
+          {
+              sp->allSlavesMask = 0; // Disable reparenting to this split point
               break;
+          }
       }
 
   lock_release(splitLock);