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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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62
src/tt.h
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@@ -46,61 +46,19 @@ class TTEntry {
public:
void save(uint32_t k, Value v, Bound b, Depth d, Move m, int g) {
key32 = (uint32_t)k;
move16 = (uint16_t)m;
bound = (uint8_t)b;
generation8 = (uint8_t)g;
valueUpper = (int16_t)(b & BOUND_UPPER ? v : VALUE_NONE);
depthUpper = (int16_t)(b & BOUND_UPPER ? d : DEPTH_NONE);
valueLower = (int16_t)(b & BOUND_LOWER ? v : VALUE_NONE);
depthLower = (int16_t)(b & BOUND_LOWER ? d : DEPTH_NONE);
key32 = (uint32_t)k;
move16 = (uint16_t)m;
bound = (uint8_t)b;
generation8 = (uint8_t)g;
value16 = (int16_t)v;
depth16 = (int16_t)d;
}
void update(Value v, Bound b, Depth d, Move m, int g) {
move16 = (uint16_t)m;
generation8 = (uint8_t)g;
if (bound == BOUND_EXACT)
bound = BOUND_UPPER | BOUND_LOWER; // Drop 'EXACT' flag
if (b & BOUND_UPPER)
{
valueUpper = (int16_t)v;
depthUpper = (int16_t)d;
if ((bound & BOUND_LOWER) && v < valueLower)
{
bound ^= BOUND_LOWER;
valueLower = VALUE_NONE;
depthLower = DEPTH_NONE;
}
}
if (b & BOUND_LOWER)
{
valueLower = (int16_t)v;
depthLower = (int16_t)d;
if ((bound & BOUND_UPPER) && v > valueUpper)
{
bound ^= BOUND_UPPER;
valueUpper = VALUE_NONE;
depthUpper = DEPTH_NONE;
}
}
bound |= (uint8_t)b;
}
void set_generation(int g) { generation8 = (uint8_t)g; }
uint32_t key() const { return key32; }
Depth depth() const { return (Depth)depthLower; }
Depth depth_upper() const { return (Depth)depthUpper; }
Depth depth() const { return (Depth)depth16; }
Move move() const { return (Move)move16; }
Value value() const { return (Value)valueLower; }
Value value_upper() const { return (Value)valueUpper; }
Value value() const { return (Value)value16; }
Bound type() const { return (Bound)bound; }
int generation() const { return (int)generation8; }
@@ -108,7 +66,7 @@ private:
uint32_t key32;
uint16_t move16;
uint8_t bound, generation8;
int16_t valueLower, depthLower, valueUpper, depthUpper;
int16_t value16, depth16;
};
@@ -138,7 +96,7 @@ public:
~TranspositionTable();
void set_size(size_t mbSize);
void clear();
void store(const Key posKey, Value v, Bound b, Depth d, Move m);
void store(const Key posKey, Value v, Bound type, Depth d, Move m);
TTEntry* probe(const Key posKey) const;
void new_search();
TTEntry* first_entry(const Key posKey) const;