int shmem_pe_accessible(int pe)
{
RUNTIME_CHECK_INIT();
/* Assume that everything between 0 and num_pes() is reachable. */
return 0 <= pe && pe < _num_pes() ? 1 : 0;
}
static inline void _shfree(void* ptr)
{
int rc;
RUNTIME_CHECK_INIT(); RUNTIME_CHECK_ADDR(ptr);
#if OSHMEM_SPEC_COMPAT == 1
shmem_barrier_all();
#endif
rc = MCA_MEMHEAP_CALL(free(ptr));
if (OSHMEM_SUCCESS != rc) {
SHMEM_API_VERBOSE(10, "shfree failure.");
}
}
int shmem_addr_accessible(const void *addr, int pe)
{
void* rva;
sshmem_mkey_t *mkey;
int i;
RUNTIME_CHECK_INIT();
for (i = 0; i < mca_memheap_base_num_transports(); i++) {
mkey = mca_memheap_base_get_cached_mkey(pe, (void *)addr, i, &rva);
if (mkey) {
return 1;
}
}
return 0;
}
void shmem_barrier(int PE_start, int logPE_stride, int PE_size, long *pSync)
{
int rc = OSHMEM_SUCCESS;
oshmem_group_t* group = NULL;
RUNTIME_CHECK_INIT();
#if OSHMEM_SPEC_COMPAT == 1
/* all outstanding puts must be completed */
shmem_fence();
#endif
if ((0 <= PE_start) && (0 <= logPE_stride)) {
/* Create group basing PE_start, logPE_stride and PE_size */
#if OSHMEM_GROUP_CACHE_ENABLED == 0
group = oshmem_proc_group_create(PE_start, (1 << logPE_stride), PE_size);
if (!group)
rc = OSHMEM_ERROR;
#else
group = find_group_in_cache(PE_start, logPE_stride, PE_size);
if (!group) {
group = oshmem_proc_group_create(PE_start,
(1 << logPE_stride),
PE_size);
if (!group) {
rc = OSHMEM_ERROR;
} else {
cache_group(group, PE_start, logPE_stride, PE_size);
}
}
#endif /* OSHMEM_GROUP_CACHE_ENABLED */
/* Collective operation call */
if (rc == OSHMEM_SUCCESS) {
/* Call barrier operation */
rc = group->g_scoll.scoll_barrier(group, pSync, SCOLL_DEFAULT_ALG);
}
#if OSHMEM_GROUP_CACHE_ENABLED == 0
if ( rc == OSHMEM_SUCCESS )
{
oshmem_proc_group_destroy(group);
}
#endif /* OSHMEM_GROUP_CACHE_ENABLED */
}
RUNTIME_CHECK_RC(rc);
}
int my_pe(void)
{
RUNTIME_CHECK_INIT();
return oshmem_my_proc_id();
}
int num_pes(void)
{
RUNTIME_CHECK_INIT();
return oshmem_num_procs();
}
