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Code Issues Releases Wiki Activity

Call TT.new_search() earlier.

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TT.new_search() was being called by mainThread in Thread::search(). However, mainThread is the last to start searching, and helper threads could reach a measured rootDepth 10 (on 64 cores) before mainThread increments the TT generation. Fixed by moving the call to MaintThread::search() before helper threads start searching.

No functional change.

Closes #1134
This commit is contained in:
Joost VandeVondele 2017-06-06 09:48:57 +02:00 • committed by Joona Kiiski
parent 659990b43f
commit ebc563059c
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -244,6 +244,7 @@ void MainThread::search() {
Color us = rootPos.side_to_move();
Time.init(Limits, us, rootPos.game_ply());
TT.new_search();
int contempt = Options["Contempt"] * PawnValueEg / 100; // From centipawns
DrawValue[ us] = VALUE_DRAW - Value(contempt);
@ -347,7 +348,6 @@ void Thread::search() {
EasyMove.clear();
mainThread->easyMovePlayed = mainThread->failedLow = false;
mainThread->bestMoveChanges = 0;
TT.new_search();
}
size_t multiPV = Options["MultiPV"];