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/*
* Copyright (c) 2016 Mellanox Technologies, Inc.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include <stdio.h>
#include <slurm/pmi2.h>
#include "pmi2_pmap_parser.h"
#include "pmi2_utils.h"
static int my_rank, my_node;
static char * kvs_name;
void pmi_init(int *rank, int *size)
{
int spawned, appnum;
int rc;
*size = -1;
*rank = -1;
appnum = -1;
if (PMI2_SUCCESS != (rc = PMI2_Init(&spawned, size, rank, &appnum))) {
fprintf(stderr, "pmi2: PMI2_Init: error rc = %d\n", rc);
abort();
}
if( *size < 0 || *rank < 0 ){
fprintf(stderr, "pmi2: PMI2_Init: bad size=%d or rank=%d values\n",
*size, *rank);
abort();
}
my_rank = *rank;
kvs_name = (char*)malloc(PMI2_MAX_VALLEN);
if( kvs_name == NULL ){
fprintf(stderr, "pmi_init (pmi2): cannot malloc kvs name buffer\n");
abort();
}
rc = PMI2_Job_GetId(kvs_name, PMI2_MAX_VALLEN);
if( PMI2_SUCCESS != rc ){
fprintf(stderr, "pmi_init (pmi2): cannot get kvs name: rc = %d\n", rc);
abort();
}
}
void pmi_get_local_ranks(int **local_ranks, int *local_cnt)
{
int rc, found;
char *pmapping = (char*)malloc(PMI2_MAX_VALLEN);
if( pmapping == NULL ){
fprintf(stderr,"pmi_get_local_ranks (pmi2): cannot mallic for pmappig\n");
abort();
}
rc = PMI2_Info_GetJobAttr("PMI_process_mapping", pmapping, PMI2_MAX_VALLEN, &found);
if( !found || PMI2_SUCCESS != rc ) {
fprintf(stderr,"pmi_get_local_ranks (pmi2): PMI2_Info_GetJobAttr rc = %d\n", rc);
abort();
}
*local_ranks = NULL;
*local_ranks = mca_common_pmi2_parse_pmap(pmapping, my_rank, &my_node, local_cnt);
if (NULL == *local_ranks) {
fprintf(stderr,"mca_common_pmi2_parse_pmap: error\n");
abort();
}
free(pmapping);
}
void pmi_get_shmem_size(char *is_avail, size_t *size)
{
*is_avail = 0;
}
void pmi_put_key_loc(char *key, int *key_val, int key_size)
{
char *encoded = pmi_encode(key_val, key_size * sizeof(int));
if( NULL == encoded ){
fprintf(stderr, "pmi_encode: error on key: %s\n", key);
abort();
}
PMI2_Info_PutNodeAttr(key, encoded);
}
void pmi_put_key_rem(char *key, int *key_val, int key_size)
{
char *encoded = pmi_encode(key_val, key_size * sizeof(int));
if( NULL == encoded ){
fprintf(stderr, "pmi_encode: error on key: %s\n", key);
abort();
}
PMI2_KVS_Put(key, encoded);
}
void pmi_put_double(char *key, double val)
{
char buf[128];
sprintf(buf, "%lf", val);
PMI2_KVS_Put(key, buf);
}
void pmi_commit()
{
}
void pmi_fence(int collect)
{
int rc;
/* now call fence */
if (PMI2_SUCCESS != (rc = PMI2_KVS_Fence()) ) {
fprintf(stderr, "PMI2_KVS_Fence: error %d\n", rc);
abort();
}
}
void pmi_fini()
{
PMI2_Finalize();
}
void pmi_get_key_loc(int rank, char *key_name, int **key_val, int *key_size)
{
int found, rc;
size_t tmp_size;
char *tmp = calloc(PMI2_MAX_VALLEN, sizeof(char));
if( (rc = PMI2_Info_GetNodeAttr(key_name, tmp, PMI2_MAX_VALLEN, &found, 1) ) ){
fprintf(stderr,"PMI2_Info_GetNodeAttr: error rc = %d\n", rc);
abort();
}
if( !found ){
fprintf(stderr,"pmi_get_key_loc: key %s not found\n", key_name);
abort();
}
*key_val = (int*)pmi_decode(tmp, &tmp_size);
*key_size = tmp_size / sizeof(int);
if( NULL == *key_val ){
fprintf(stderr,"pmi_decode: cannot decode key %s\n", key_name);
abort();
}
free(tmp);
}
void pmi_get_key_rem(int rank, char *key_name, int **key_val, int *key_size)
{
int len, rc;
size_t tmp_size;
char *tmp = calloc(PMI2_MAX_VALLEN, sizeof(char));
if( (rc = PMI2_KVS_Get(kvs_name, PMI2_ID_NULL, key_name, tmp, PMI2_MAX_VALLEN, &len) ) ){
fprintf(stderr,"PMI2_Info_GetNodeAttr: error rc = %d\n", rc);
abort();
}
*key_val = (int*)pmi_decode(tmp, &tmp_size);
*key_size = tmp_size / sizeof(int);
if( NULL == *key_val ){
fprintf(stderr,"pmi_decode: cannot decode key %s\n", key_name);
abort();
}
free(tmp);
}
double pmi_get_double(int rank, char *key)
{
int len, rc;
size_t tmp_size;
char *tmp = calloc(PMI2_MAX_VALLEN, sizeof(char));
double v;
if( (rc = PMI2_KVS_Get(kvs_name, PMI2_ID_NULL, key, tmp, PMI2_MAX_VALLEN, &len) ) ){
fprintf(stderr,"PMI2_Info_GetNodeAttr: error rc = %d\n", rc);
abort();
}
sscanf(tmp, "%lf", &v);
free(tmp);
return v;
}
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