static int
gen_cmdkvs(const struct kmr_kv_box kv,
const KMR_KVS *kvi, KMR_KVS *kvo, void *p, long i_)
{
char *cmd1 = "maxprocs=1 /bin/sleep 1";
char *cmd2 = "maxprocs=1 /bin/sleep 5";
char *cmd3 = "maxprocs=1 /bin/sleep 10";
int vlen = (int)strlen(cmd2) + 1;
for (int i = 0; i < NUM_COMMANDS; i++) {
char *cmd = NULL;
if (i % 3 == 0) {
cmd = cmd1;
} else if (i % 3 == 1) {
cmd = cmd2;
} else {
cmd = cmd3;
}
struct kmr_kv_box nkv = { .klen = sizeof(long),
.vlen = vlen * (int)sizeof(char),
.k.i = i,
.v.p = (void *)cmd };
kmr_add_kv(kvo, nkv);
}
return MPI_SUCCESS;
}
static int
output_result(const struct kmr_kv_box kv,
const KMR_KVS *kvi, KMR_KVS *kvo, void *p, long i_)
{
struct kmr_kv_box nkv = { .klen = sizeof(long),
.vlen = sizeof(long),
.k.i = kv.k.i,
.v.i = kv.k.i };
kmr_add_kv(kvo, nkv);
return MPI_SUCCESS;
}
int
main(int argc, char **argv)
{
MPI_Init(&argc, &argv);
kmr_init();
KMR *mr = kmr_create_context(MPI_COMM_WORLD, MPI_INFO_NULL, 0);
int rank;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
fprintf(stderr, "Start\n");
}
MPI_Barrier(MPI_COMM_WORLD);
KMR_KVS *kvs_commands = kmr_create_kvs(mr, KMR_KV_INTEGER, KMR_KV_OPAQUE);
int ret = kmr_map_once(kvs_commands, 0, kmr_noopt, 1, gen_cmdkvs);
if (ret != MPI_SUCCESS) {
MPI_Abort(MPI_COMM_WORLD, 1);
}
kmr_dump_kvs(kvs_commands, 1);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
fprintf(stderr, "MAP_ONCE DONE\n");
}
MPI_Barrier(MPI_COMM_WORLD);
KMR_KVS *kvs_runcmds = kmr_create_kvs(mr, KMR_KV_INTEGER, KMR_KV_OPAQUE);
ret = kmr_shuffle(kvs_commands, kvs_runcmds, kmr_noopt);
if (ret != MPI_SUCCESS) {
MPI_Abort(MPI_COMM_WORLD, 1);
}
kmr_dump_kvs(kvs_runcmds, 1);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
fprintf(stderr, "SHUFFLE DONE\n");
}
MPI_Barrier(MPI_COMM_WORLD);
KMR_KVS *kvs_results = kmr_create_kvs(mr, KMR_KV_INTEGER, KMR_KV_INTEGER);
struct kmr_spawn_option sopt_sepsp = { .separator_space = 1 };
ret = kmr_map_serial_processes(kvs_runcmds, kvs_results, 0, MPI_INFO_NULL,
sopt_sepsp, output_result);
kmr_dump_kvs(kvs_results, 1);
kmr_free_kvs(kvs_results);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
fprintf(stderr, "MAP_SPAWN DONE\n");
}
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
fprintf(stderr, "Finish\n");
}
kmr_free_context(mr);
kmr_fin();
MPI_Finalize();
}
static int
add_initial_data(const struct kmr_kv_box kv,
const KMR_KVS *kvi, KMR_KVS *kvo, void *p, long i_)
{
common_t *common = (common_t *)p;
char filename[FILENAME_LEN];
create_file(common->rank, common->iteration, common->file_size,
filename, FILENAME_LEN);
common->val_count = IO_COUNT * common->file_size;
struct kmr_kv_box nkv = { .klen = sizeof(char) * (strlen(common->key) + 1),
.k.p = common->key,
.vlen = sizeof(char) * (strlen(filename) + 1),
.v.p = (void *)filename };
kmr_add_kv(kvo, nkv);
return MPI_SUCCESS;
}
static int
increment_in_file_value(const struct kmr_kv_box kv,
const KMR_KVS *kvi, KMR_KVS *kvo, void *p, long i_)
{
common_t *common = (common_t *)p;
char *infile = (char *)kv.v.p;
char outfile[FILENAME_LEN];
snprintf(outfile, FILENAME_LEN, "./%06d-%02d.dat", common->rank,
common->iteration + 1);
FILE *ifp = fopen(infile, "r");
FILE *ofp = fopen(outfile, "w+");
assert(ifp != 0 && ofp != 0);
/* read/write 1MB at once */
long *buf = (long *)malloc(sizeof(long) * IO_COUNT);
for (int i = 0; i < common->file_size; i++) {
size_t cc = fread(buf, sizeof(long), IO_COUNT, ifp);
assert(cc == IO_COUNT);
for (int j = 0; j < IO_COUNT; j++) {
buf[j] += 1;
}
cc = fwrite(buf, sizeof(long), IO_COUNT, ofp);
assert(cc == IO_COUNT);
}
free(buf);
fclose(ofp);
struct kmr_kv_box nkv = { .klen = sizeof(char) * (strlen(common->key) + 1),
.k.p = common->key,
.vlen = sizeof(char) * (strlen(outfile) + 1),
.v.p = (void *)outfile };
kmr_add_kv(kvo, nkv);
#ifdef DEBUG
fseek(ifp, 0, SEEK_SET);
long val;
fread(&val, sizeof(long), 1, ifp);
fprintf(stderr, "Rank[%d]: process key[%s]-val[%ld]\n",
common->rank, (char *)kv.k.p, val);
#endif
fclose(ifp);
delete_file(common->rank, common->iteration);
return MPI_SUCCESS;
}
int
main(int argc, char **argv)
{
int thlv;
MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &thlv);
int nprocs, rank, task_nprocs;
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
check_nprocs(nprocs, rank, &task_nprocs);
kmr_init();
KMR *mr = kmr_create_context(MPI_COMM_WORLD, MPI_INFO_NULL, 0);
mr->verbosity = 5;
mr->trace_map_mp = 1;
char even_key[KEY_LEN];
char odd_key[KEY_LEN];
snprintf(even_key, KEY_LEN, "even%06d", (rank / task_nprocs + 1));
snprintf(odd_key, KEY_LEN, "odd%06d", (rank % task_nprocs + 1));
common_t common0;
common0.key = even_key;
parse_param_file(argc, argv, &(common0.file_size));
common0.rank = rank;
common0.iteration = 0;
KMR_KVS *kvs0 = kmr_create_kvs(mr, KMR_KV_OPAQUE, KMR_KV_OPAQUE);
kmr_map_once(kvs0, &common0, kmr_noopt, 0, add_initial_data);
double itr_times[ITERATIONS];
for (int i = 0; i < ITERATIONS; i++) {
common0.key = (i % 2 == 0)? odd_key : even_key;
common0.iteration = i;
KMR_KVS *kvs1 = kmr_create_kvs(mr, KMR_KV_OPAQUE, KMR_KV_OPAQUE);
struct timeval ts;
measure_time(&ts);
kmr_map_multiprocess_by_key(kvs0, kvs1, &common0, kmr_noopt, rank,
increment_in_file_value);
struct timeval te;
measure_time(&te);
itr_times[i] = calc_time_diff(&ts, &te);
kvs0 = kvs1;
}
kmr_free_kvs(kvs0);
delete_file(common0.rank, common0.iteration + 1);
print_time(itr_times, ITERATIONS, rank);
kmr_free_context(mr);
kmr_fin();
MPI_Finalize();
return 0;
}
