kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 00:33:09 +00:00
Code Issues Releases Wiki Activity

Use only 'level' as late join metric

Browse source 
It seems other metric are useless, this allow us
to simplify the code and to prune useless stuff.

STC 20K games 4 threads
ELO: -0.76 +-2.8 (95%) LOS: 29.9%
Total: 20000 W: 3477 L: 3521 D: 13002

STC 10K games 16 threads
ELO: 1.36 +-3.9 (95%) LOS: 75.0%
Total: 10000 W: 1690 L: 1651 D: 6659

bench: 8253813
This commit is contained in:
Marco Costalba 2015-02-19 14:14:20 +01:00
parent 5fd5453e59
commit e2226cbb20
1 changed files with 5 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
src/search.cpp
View file

@ -1590,7 +1590,7 @@ void Thread::idle_loop() {
// Try to late join to another split point if none of its slaves has
// already finished.
SplitPoint* bestSp = NULL;
int bestScore = INT_MAX;
int minLevel = INT_MAX;
for (size_t i = 0; i < Threads.size(); ++i)
{
@ -1608,16 +1608,14 @@ void Thread::idle_loop() {
// Prefer to join to SP with few parents to reduce the probability
// that a cut-off occurs above us, and hence we waste our work.
int level = -1;
for (SplitPoint* spp = Threads[i]->activeSplitPoint; spp; spp = spp->parentSplitPoint)
int level = 0;
for (SplitPoint* p = Threads[i]->activeSplitPoint; p; p = p->parentSplitPoint)
level++;
int score = level * 256 * 256 + (int)sp->slavesMask.count() * 256 - sp->depth * 1;
if (score < bestScore)
if (level < minLevel)
{
bestSp = sp;
bestScore = score;
minLevel = level;
}
}
}