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Revert store of distinct upper and lower bounds

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Test by Joona prooves the new feature don't value 70 added lines of code.

Grand totals after 10040 games (crashes: 0) for tt_both

master_9edc7 - 6a93488_6a934: 1756 - 1688 - 6596 ELO +2 (+- 2.7)

Confirmed by test of Gary:

After 8680 games:
ELO: 0.80 +- 99%: 9.62 95%: 7.31
LOS: 65.38%
Wins: 1288 Losses: 1268 Draws: 6130

Thanks a lot to both for testing it !!!

bench 5149248
This commit is contained in:
Marco Costalba
2012-12-15 11:11:38 +01:00
parent 9edc7d6958
commit a2f46446cf
4 changed files with 41 additions and 111 deletions
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11
src/tt.cpp
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@@ -82,7 +82,7 @@ void TranspositionTable::clear() {
/// more valuable than a TTEntry t2 if t1 is from the current search and t2 is from
/// a previous search, or if the depth of t1 is bigger than the depth of t2.
void TranspositionTable::store(const Key posKey, Value v, Bound b, Depth d, Move m) {
void TranspositionTable::store(const Key posKey, Value v, Bound t, Depth d, Move m) {
int c1, c2, c3;
TTEntry *tte, *replace;
@@ -92,16 +92,13 @@ void TranspositionTable::store(const Key posKey, Value v, Bound b, Depth d, Move
for (int i = 0; i < ClusterSize; i++, tte++)
{
if (!tte->key())
tte->save(posKey32, v, b, d, m, generation);
if (tte->key() == posKey32)
if (!tte->key() || tte->key() == posKey32) // Empty or overwrite old
{
// Preserve any existing ttMove
if (m == MOVE_NONE)
m = tte->move();
tte->update(v, b, d, m, generation);
tte->save(posKey32, v, t, d, m, generation);
return;
}
@@ -113,7 +110,7 @@ void TranspositionTable::store(const Key posKey, Value v, Bound b, Depth d, Move
if (c1 + c2 + c3 > 0)
replace = tte;
}
replace->save(posKey32, v, b, d, m, generation);
replace->save(posKey32, v, t, d, m, generation);
}