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Simplify time management

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Tested with simplification mode SPRT[-4, 0]

Passed both short TC
LLR: 2.95 (-2.94,2.94) [-4.00,0.00]
Total: 34102 W: 6184 L: 6144 D: 21774

And long TC
LLR: 2.96 (-2.94,2.94) [-4.00,0.00]
Total: 16518 W: 2647 L: 2545 D: 11326

And also 40/10 TC
LLR: 2.95 (-2.94,2.94) [-4.00,0.00]
Total: 22406 W: 4390 L: 4312 D: 13704

bench: 8430785
This commit is contained in:
Leonid Pechenik
2014-02-11 04:01:06 -05:00
committed by Marco Costalba
parent e6523e56b8
commit 72e8640f4d
4 changed files with 12 additions and 14 deletions
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14
src/search.cpp
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@@ -320,7 +320,7 @@ namespace {
while (++depth <= MAX_PLY && !Signals.stop && (!Limits.depth || depth <= Limits.depth))
{
// Age out PV variability metric
BestMoveChanges *= 0.8;
BestMoveChanges *= 0.5;
// Save the last iteration's scores before first PV line is searched and
// all the move scores except the (new) PV are set to -VALUE_INFINITE.
@@ -429,11 +429,10 @@ namespace {
if (depth > 4 && depth < 50 && PVSize == 1)
TimeMgr.pv_instability(BestMoveChanges);
// Stop the search if only one legal move is available or most
// of the available time has been used. We probably don't have
// enough time to search the first move at the next iteration anyway.
// Stop the search if only one legal move is available or all
// of the available time has been used.
if ( RootMoves.size() == 1
|| IterationTime > (TimeMgr.available_time() * 62) / 100)
|| IterationTime > TimeMgr.available_time() )
stop = true;
if (stop)
@@ -1628,9 +1627,8 @@ void check_time() {
Time::point elapsed = Time::now() - SearchTime;
bool stillAtFirstMove = Signals.firstRootMove
&& !Signals.failedLowAtRoot
&& ( elapsed > TimeMgr.available_time()
|| ( elapsed > (TimeMgr.available_time() * 62) / 100
&& elapsed > IterationTime * 1.4));
&& elapsed > TimeMgr.available_time()
&& elapsed > IterationTime * 1.4;
bool noMoreTime = elapsed > TimeMgr.maximum_time() - 2 * TimerThread::Resolution
|| stillAtFirstMove;