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Split at root!

Browse Source 
Another great success by Joona !

After 5876 games at 10"+0.1
Mod vs Orig: 1073 - 849 - 3954 ELO +13 (+- 5.2)

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski
2011-08-06 09:43:46 +01:00
committed by Marco Costalba
parent 13bc6ba2c6
commit ffa150bec3
3 changed files with 12 additions and 11 deletions
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11
src/search.cpp
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@@ -1226,15 +1226,14 @@ split_point_start: // At split points actual search starts from here
}
// Step 19. Check for split
if ( !RootNode
&& !SpNode
if ( !SpNode
&& depth >= Threads.min_split_depth()
&& bestValue < beta
&& Threads.available_slave_exists(pos.thread())
&& !StopRequest
&& !thread.cutoff_occurred())
Threads.split<FakeSplit>(pos, ss, &alpha, beta, &bestValue, depth,
threatMove, moveCount, &mp, PvNode);
threatMove, moveCount, &mp, NT);
}
// Step 20. Check for mate and stalemate
@@ -2210,9 +2209,11 @@ void ThreadsManager::idle_loop(int threadID, SplitPoint* sp) {
memcpy(ss, tsp->ss - 1, 4 * sizeof(SearchStack));
(ss+1)->sp = tsp;
if (tsp->pvNode)
if (tsp->nodeType == Root)
search<SplitPointRoot>(pos, ss+1, tsp->alpha, tsp->beta, tsp->depth);
else if (tsp->nodeType == PV)
search<SplitPointPV>(pos, ss+1, tsp->alpha, tsp->beta, tsp->depth);
else
else if (tsp->nodeType == NonPV)
search<SplitPointNonPV>(pos, ss+1, tsp->alpha, tsp->beta, tsp->depth);
assert(threads[threadID].state == Thread::SEARCHING);