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add info in pos_print, start perft TT testing

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Bruno Raoult
2024-06-13 10:28:32 +02:00
parent 8be03c6230
commit 148fef20ea
9 changed files with 310 additions and 49 deletions
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11
src/hash.h
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@@ -18,7 +18,7 @@
#include "chessdefs.h"
#define NBUCKETS 4 /* buckets per hash table entry */
#define ENTRIES_PER_BUCKET 4 /* buckets per hash table entry */
#define HASH_SIZE_DEFAULT 32 /* default: 32Mb */
#define HASH_SIZE_MIN 4
@@ -35,7 +35,7 @@ typedef u64 hkey_t; /* cannot use typedef for key_
* 16 bytes in future, it should be updated to be exactly 32 bytes.
*/
typedef struct {
hkey_t key; /* zobrist */
hkey_t key; /* zobrist */
union {
u64 data;
struct {
@@ -59,7 +59,7 @@ typedef struct {
typedef struct {
hentry_t entry[NBUCKETS];
hentry_t entry[ENTRIES_PER_BUCKET];
} bucket_t;
typedef struct {
@@ -78,9 +78,11 @@ typedef struct {
u32 mask; /* nbuckets - 1, key mask */
/* stats - unsure about usage */
size_t used_buckets;
//size_t used_buckets;
size_t used_keys;
u64 collisions;
u64 hits;
u64 misses;
} hasht_t;
/* hack:
@@ -128,5 +130,6 @@ void tt_delete(void);
hentry_t *tt_probe(hkey_t key);
hentry_t *tt_probe_perft(const hkey_t key, const u16 depth);
hentry_t *tt_store_perft(const hkey_t key, const u16 depth, const u64 nodes);
void tt_stats(void);
#endif /* HASH_H */