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stable version of BRZ using extenal memory to flush vector g

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This commit is contained in:
fc_botelho 2005-09-23 20:54:31 +00:00
parent 24dbad9bd3
commit 7352e08488
8 changed files with 63 additions and 40 deletions
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4
src/Makefile.am
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@ -16,8 +16,8 @@ libcmph_la_SOURCES = debug.h\
cmph_structs.h cmph_structs.c\
chm.h chm_structs.h chm.c\
bmz.h bmz_structs.h bmz.c\
bmz8.h bmz8_structs.h bmz8.c
# brz.h brz_structs.h brz.c
bmz8.h bmz8_structs.h bmz8.c\
brz.h brz_structs.h brz.c
libcmph_la_LDFLAGS = -version-info 0:0:0

3
src/bmz.c
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@ -446,11 +446,8 @@ int bmz_dump(cmph_t *mphf, FILE *fd)
{
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint32 nbuflen;
cmph_uint32 i;
cmph_uint32 two = 2; //number of hash functions
bmz_data_t *data = (bmz_data_t *)mphf->data;
cmph_uint32 nn, nm;
__cmph_dump(mphf, fd);
fwrite(&two, sizeof(cmph_uint32), 1, fd);

2
src/bmz8.c
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@ -453,10 +453,8 @@ int bmz8_dump(cmph_t *mphf, FILE *fd)
{
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint8 i;
cmph_uint8 two = 2; //number of hash functions
bmz8_data_t *data = (bmz8_data_t *)mphf->data;
cmph_uint8 nn, nm;
__cmph_dump(mphf, fd);
fwrite(&two, sizeof(cmph_uint8), 1, fd);

50
src/brz.c
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@ -1,4 +1,3 @@
#include "graph.h"
#include "bmz8.h"
#include "bmz8_structs.h"
@ -23,7 +22,7 @@ static cmph_uint32 brz_min_index(cmph_uint32 * vector, cmph_uint32 n);
static char * brz_read_key(FILE * fd);
static void brz_destroy_keys_vd(char ** keys_vd, cmph_uint8 nkeys);
static void brz_copy_partial_mphf(brz_config_data_t *brz, bmz8_data_t * bmzf, cmph_uint32 index, cmph_io_adapter_t *source);
static void brz_flush_g(brz_config_data_t *brz, cmph_uint32 *start_index, FILE * fd);
brz_config_data_t *brz_config_new()
{
brz_config_data_t *brz = NULL;
@ -48,7 +47,6 @@ void brz_config_destroy(cmph_config_t *mph)
{
brz_config_data_t *data = (brz_config_data_t *)mph->data;
DEBUGP("Destroying algorithm dependent data\n");
free(data->tmp_dir);
free(data);
}
@ -81,12 +79,12 @@ void brz_config_set_tmp_dir(cmph_config_t *mph, cmph_uint8 *tmp_dir)
if(tmp_dir[len-1] != '/')
{
brz->tmp_dir = calloc(len+2, sizeof(cmph_uint8));
sprintf(brz->tmp_dir, "%s/\0", tmp_dir);
sprintf(brz->tmp_dir, "%s/", tmp_dir);
}
else
{
brz->tmp_dir = calloc(len+1, sizeof(cmph_uint8));
sprintf(brz->tmp_dir, "%s\0", tmp_dir);
sprintf(brz->tmp_dir, "%s", tmp_dir);
}
}
@ -169,6 +167,8 @@ cmph_t *brz_new(cmph_config_t *mph, float c)
brz->size = NULL; //transfer memory ownership
brzf->offset = brz->offset;
brz->offset = NULL; //transfer memory ownership
brzf->tmp_dir = brz->tmp_dir;
brz->tmp_dir = NULL; //transfer memory ownership
brzf->k = brz->k;
brzf->c = brz->c;
brzf->m = brz->m;
@ -204,6 +204,7 @@ static int brz_gen_graphs(cmph_config_t *mph)
cmph_uint32 max_size = 0;
cmph_uint32 cur_bucket = 0;
cmph_uint8 nkeys_vd = 0;
cmph_uint32 start_index = 0;
char ** keys_vd = NULL;
@ -333,7 +334,11 @@ static int brz_gen_graphs(cmph_config_t *mph)
tmp_fds = (FILE **)calloc(nflushes, sizeof(FILE *));
buffer_merge = (cmph_uint8 **)calloc(nflushes, sizeof(cmph_uint8 *));
buffer_h3 = (cmph_uint32 *)calloc(nflushes, sizeof(cmph_uint32));
filename = (char *)calloc(strlen(brz->tmp_dir) + 11, sizeof(char));
sprintf(filename, "%stmpg.cmph",brz->tmp_dir);
tmp_fd = fopen(filename, "w");
free(filename);
memory_usage = 0;
for(i = 0; i < nflushes; i++)
{
filename = (char *)calloc(strlen(brz->tmp_dir) + 11, sizeof(char));
@ -406,6 +411,12 @@ static int brz_gen_graphs(cmph_config_t *mph)
mphf_tmp = cmph_new(config);
bmzf = (bmz8_data_t *)mphf_tmp->data;
brz_copy_partial_mphf(brz, bmzf, cur_bucket, source);
memory_usage += brz->size[cur_bucket];
if((cur_bucket+1 == brz->k)||(memory_usage > brz->memory_availability))
{
brz_flush_g(brz, &start_index, tmp_fd);
memory_usage = 0;
}
cmph_config_destroy(config);
brz_destroy_keys_vd(keys_vd, nkeys_vd);
cmph_destroy(mphf_tmp);
@ -413,6 +424,7 @@ static int brz_gen_graphs(cmph_config_t *mph)
nkeys_vd = 0;
}
}
fclose(tmp_fd);
for(i = 0; i < nflushes; i++) fclose(tmp_fds[i]);
free(tmp_fds);
free(keys_vd);
@ -458,6 +470,17 @@ static void brz_destroy_keys_vd(char ** keys_vd, cmph_uint8 nkeys)
for(i = 0; i < nkeys; i++) free(keys_vd[i]);
}
static void brz_flush_g(brz_config_data_t *brz, cmph_uint32 *start_index, FILE * fd)
{
while(*start_index < brz->k && brz->g[*start_index] != NULL)
{
fwrite(brz->g[*start_index], sizeof(cmph_uint8), brz->size[*start_index], fd);
free(brz->g[*start_index]);
brz->g[*start_index] = NULL;
*start_index = *start_index + 1;
}
}
static void brz_copy_partial_mphf(brz_config_data_t *brz, bmz8_data_t * bmzf, cmph_uint32 index, cmph_io_adapter_t *source)
{
cmph_uint32 i;
@ -477,9 +500,14 @@ int brz_dump(cmph_t *mphf, FILE *fd)
{
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint32 nbuflen;
cmph_uint32 i;
brz_data_t *data = (brz_data_t *)mphf->data;
FILE * tmpg_fd = NULL;
char * filename = NULL;
filename = (char *)calloc(strlen(data->tmp_dir) + 11, sizeof(char));
sprintf(filename, "%stmpg.cmph",data->tmp_dir);
tmpg_fd = fopen(filename, "rb");
free(filename);
DEBUGP("Dumping brzf\n");
__cmph_dump(mphf, fd);
@ -517,14 +545,17 @@ int brz_dump(cmph_t *mphf, FILE *fd)
for(i = 0; i < data->k; i++)
{
cmph_uint32 n = ceil(data->c * data->size[i]);
fwrite(data->g[i], sizeof(cmph_uint8)*n, 1, fd);
buf = (char *)calloc(n, sizeof(cmph_uint8));
fread(buf, sizeof(cmph_uint8), n, tmpg_fd);
fwrite(buf, sizeof(cmph_uint8), n, fd);
free(buf);
}
fclose(tmpg_fd);
return 1;
}
void brz_load(FILE *f, cmph_t *mphf)
{
cmph_uint32 nhashes;
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint32 i;
@ -614,6 +645,7 @@ void brz_destroy(cmph_t *mphf)
free(data->h2);
free(data->size);
free(data->offset);
free(data->tmp_dir);
free(data);
free(mphf);
}

3
src/brz_structs.h
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@ -13,7 +13,8 @@ struct __brz_data_t
cmph_uint32 k; // number of components
hash_state_t **h1;
hash_state_t **h2;
hash_state_t * h3;
hash_state_t * h3;
cmph_uint8 * tmp_dir; // temporary directory
};
struct __brz_config_data_t

5
src/chm.c
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@ -182,7 +182,7 @@ static int chm_gen_edges(cmph_config_t *mph)
if (h1 == h2) if (++h2 >= chm->n) h2 = 0;
if (h1 == h2)
{
if (mph->verbosity) fprintf(stderr, "Self loop for key %e\n", e);
if (mph->verbosity) fprintf(stderr, "Self loop for key %u\n", e);
mph->key_source->dispose(mph->key_source->data, key, keylen);
return 0;
}
@ -201,7 +201,6 @@ int chm_dump(cmph_t *mphf, FILE *fd)
{
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint32 i;
cmph_uint32 two = 2; //number of hash functions
chm_data_t *data = (chm_data_t *)mphf->data;
__cmph_dump(mphf, fd);
@ -234,11 +233,9 @@ int chm_dump(cmph_t *mphf, FILE *fd)
void chm_load(FILE *f, cmph_t *mphf)
{
cmph_uint32 nhashes;
char fbuf[BUFSIZ];
char *buf = NULL;
cmph_uint32 buflen;
cmph_uint32 i;
hash_state_t *state;
chm_data_t *chm = (chm_data_t *)malloc(sizeof(chm_data_t));
DEBUGP("Loading chm mphf\n");

34
src/cmph.c
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@ -3,11 +3,11 @@
#include "chm.h"
#include "bmz.h"
#include "bmz8.h" /* included -- Fabiano */
//#include "brz.h" /* included -- Fabiano */
#include "brz.h" /* included -- Fabiano */
#include <stdlib.h>
#include <assert.h>
#include <string.h>
//#define DEBUG
#include "debug.h"
@ -159,7 +159,7 @@ void cmph_config_set_algo(cmph_config_t *mph, CMPH_ALGO algo)
bmz8_config_destroy(mph);
break;
case CMPH_BRZ:
// brz_config_destroy(mph);
brz_config_destroy(mph);
break;
default:
assert(0);
@ -176,7 +176,7 @@ void cmph_config_set_algo(cmph_config_t *mph, CMPH_ALGO algo)
mph->data = bmz8_config_new();
break;
case CMPH_BRZ:
// mph->data = brz_config_new();
mph->data = brz_config_new();
break;
default:
assert(0);
@ -196,7 +196,7 @@ void cmph_config_set_tmp_dir(cmph_config_t *mph, cmph_uint8 *tmp_dir)
case CMPH_BMZ8: /* included -- Fabiano */
break;
case CMPH_BRZ: /* included -- Fabiano */
// brz_config_set_tmp_dir(mph, tmp_dir);
brz_config_set_tmp_dir(mph, tmp_dir);
break;
default:
assert(0);
@ -215,7 +215,7 @@ void cmph_config_set_memory_availability(cmph_config_t *mph, cmph_uint32 memory_
case CMPH_BMZ8: /* included -- Fabiano */
break;
case CMPH_BRZ: /* included -- Fabiano */
// brz_config_set_memory_availability(mph, memory_availability);
brz_config_set_memory_availability(mph, memory_availability);
break;
default:
assert(0);
@ -238,7 +238,7 @@ void cmph_config_destroy(cmph_config_t *mph)
bmz8_config_destroy(mph);
break;
case CMPH_BRZ: /* included -- Fabiano */
// brz_config_destroy(mph);
brz_config_destroy(mph);
break;
default:
assert(0);
@ -265,7 +265,7 @@ void cmph_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs)
bmz8_config_set_hashfuncs(mph, hashfuncs);
break;
case CMPH_BRZ: /* included -- Fabiano */
// brz_config_set_hashfuncs(mph, hashfuncs);
brz_config_set_hashfuncs(mph, hashfuncs);
break;
default:
break;
@ -302,9 +302,9 @@ cmph_t *cmph_new(cmph_config_t *mph)
mphf = bmz8_new(mph, c);
break;
case CMPH_BRZ: /* included -- Fabiano */
/* DEBUGP("Creating brz hash\n");
DEBUGP("Creating brz hash\n");
if (c == 0) c = 1.15;
mphf = brz_new(mph, c);*/
mphf = brz_new(mph, c);
break;
default:
assert(0);
@ -323,8 +323,7 @@ int cmph_dump(cmph_t *mphf, FILE *f)
case CMPH_BMZ8: /* included -- Fabiano */
return bmz8_dump(mphf, f);
case CMPH_BRZ: /* included -- Fabiano */
break;
/* return brz_dump(mphf, f);*/
return brz_dump(mphf, f);
default:
assert(0);
}
@ -353,8 +352,8 @@ cmph_t *cmph_load(FILE *f)
bmz8_load(f, mphf);
break;
case CMPH_BRZ: /* included -- Fabiano */
/* DEBUGP("Loading brz algorithm dependent parts\n");
brz_load(f, mphf);*/
DEBUGP("Loading brz algorithm dependent parts\n");
brz_load(f, mphf);
break;
default:
assert(0);
@ -378,9 +377,8 @@ cmph_uint32 cmph_search(cmph_t *mphf, const char *key, cmph_uint32 keylen)
DEBUGP("bmz8 algorithm search\n");
return bmz8_search(mphf, key, keylen);
case CMPH_BRZ: /* included -- Fabiano */
break;
/* DEBUGP("brz algorithm search\n");
return brz_search(mphf, key, keylen);*/
DEBUGP("brz algorithm search\n");
return brz_search(mphf, key, keylen);
default:
assert(0);
}
@ -407,7 +405,7 @@ void cmph_destroy(cmph_t *mphf)
bmz8_destroy(mphf);
return;
case CMPH_BRZ: /* included -- Fabiano */
/* brz_destroy(mphf);*/
brz_destroy(mphf);
return;
default:
assert(0);

2
src/main.c
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@ -143,7 +143,7 @@ int main(int argc, char **argv)
break;
}
}
if (!valid || mph_algo == CMPH_BRZ)
if (!valid)
{
fprintf(stderr, "Invalid mph algorithm: %s. It is not available in version %s\n", optarg, VERSION);
return -1;