int oshmem_shmem_preconnect_all(void) { int rc = OSHMEM_SUCCESS; /* force qp creation and rkey exchange for memheap. Does not force exchange of static vars */ if (oshmem_preconnect_all) { long val; int nproc; int my_pe; int i; val = 0xdeadbeaf; if (!preconnect_value) { rc = MCA_MEMHEAP_CALL(private_alloc(sizeof(long), (void **)&preconnect_value)); } if (!preconnect_value || (rc != OSHMEM_SUCCESS)) { SHMEM_API_ERROR("shmem_preconnect_all failed"); return OSHMEM_ERR_OUT_OF_RESOURCE; } nproc = oshmem_num_procs(); my_pe = oshmem_my_proc_id(); for (i = 0; i < nproc; i++) { shmem_long_p(preconnect_value, val, (my_pe + i) % nproc); } shmem_barrier_all(); SHMEM_API_VERBOSE(5, "Preconnected all PEs"); } return OSHMEM_SUCCESS; }
void shmem_udcflush(void) { #if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64) do {SHMEM_API_VERBOSE(10,"shmem_udcflush is not supported by the current CPU architecture");}while (0); #else /* another implementation */ #endif }
void shmem_clear_cache_inv(void) { #if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64) do {SHMEM_API_VERBOSE(10,"shmem_clear_cache_inv is not supported by the current CPU architecture");}while (0); #else /* another implementation */ #endif }
int oshmem_shmem_preconnect_all(void) { int mca_value = 0; int rc = OSHMEM_SUCCESS; (void) mca_base_var_register("oshmem", "runtime", NULL, "preconnect_all", "Whether to force SHMEM processes to fully " "wire-up the connections between SHMEM " "processes during " "initialization (vs. making connections lazily -- " "upon the first SHMEM traffic between each " "process peer pair)", MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE, OPAL_INFO_LVL_9, MCA_BASE_VAR_SCOPE_READONLY, &mca_value); /* force qp creation and rkey exchange for memheap. Does not force exchange of static vars */ if (mca_value) { long val; int nproc = 0; int i; val = 0xdeadbeaf; if (!preconnect_value) { rc = MCA_MEMHEAP_CALL(private_alloc(sizeof(long), (void **)&preconnect_value)); } if (!preconnect_value || (rc != OSHMEM_SUCCESS)) { SHMEM_API_ERROR("shmem_preconnect_all failed"); return OSHMEM_ERR_OUT_OF_RESOURCE; } nproc = _num_pes(); for (i = 0; i < nproc; i++) { shmem_long_p(preconnect_value, val, i); } shmem_fence(); shmem_barrier_all(); SHMEM_API_VERBOSE(5, "Preconnected all PEs"); } return OSHMEM_SUCCESS; }
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."); } }