72 строки
1.5 KiB
C
72 строки
1.5 KiB
C
/*
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* Copyright (c) 2013 Mellanox Technologies, Inc.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "oshmem_config.h"
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#include <stdlib.h>
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#include "orte/util/show_help.h"
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#include "oshmem/constants.h"
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#include "oshmem/include/shmem.h"
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#include "oshmem/shmem/shmem_api_logger.h"
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#include "oshmem/runtime/runtime.h"
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#include "oshmem/mca/memheap/memheap.h"
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#include "oshmem/mca/memheap/base/base.h"
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#if OSHMEM_PROFILING
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#include "oshmem/include/pshmem.h"
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#pragma weak shmem_ptr = pshmem_ptr
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#include "oshmem/shmem/c/profile/defines.h"
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#endif
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void *shmem_ptr(const void *dst_addr, int pe)
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{
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ompi_proc_t *proc;
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sshmem_mkey_t *mkey;
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int i;
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void *rva;
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RUNTIME_CHECK_INIT();
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RUNTIME_CHECK_PE(pe);
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RUNTIME_CHECK_ADDR(dst_addr);
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/* process can access its own memory */
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if (pe == oshmem_my_proc_id()) {
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return (void *)dst_addr;
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}
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/* The memory must be on the local node */
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proc = oshmem_proc_group_find(oshmem_group_all, pe);
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if (!OPAL_PROC_ON_LOCAL_NODE(proc->super.proc_flags)) {
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return NULL;
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}
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for (i = 0; i < mca_memheap_base_num_transports(); i++) {
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mkey = mca_memheap_base_get_cached_mkey(pe, (void *)dst_addr, i, &rva);
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if (!mkey) {
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continue;
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}
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if (mca_memheap_base_mkey_is_shm(mkey)) {
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return rva;
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}
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rva = MCA_SPML_CALL(rmkey_ptr(dst_addr, mkey, pe));
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if (rva != NULL) {
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return rva;
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}
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}
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return NULL;
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}
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