5cf43de445
When the provider does not support FI_REMOTE_CQ_DATA, the OFI tag does not have sizeof(int) bits for the rank. Therefore, unexpected behavior will occur when this limit is crossed. Check the max allowed number of ranks during add_procs() and return if there is danger of exceeding this threshold. Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@intel.com>
58 строки
1.6 KiB
C
58 строки
1.6 KiB
C
/*
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* Copyright (c) 2013-2016 Intel, Inc. All rights reserved
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*
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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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#ifndef OMPI_MTL_OFI_ENDPOINT_H
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#define OMPI_MTL_OFI_ENDPOINT_H
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BEGIN_C_DECLS
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extern int ompi_mtl_ofi_add_procs(struct mca_mtl_base_module_t *mtl,
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size_t nprocs,
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struct ompi_proc_t **procs);
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OBJ_CLASS_DECLARATION(mca_mtl_ofi_endpoint_t);
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/**
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* An abstraction that represents a connection to a endpoint process.
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* An instance of mca_mtl_ofi_endpoint_t is associated with each process
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* and MTL pair at startup. However, connections to the endpoint
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* are established dynamically on an as-needed basis:
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*/
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struct mca_mtl_ofi_endpoint_t {
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opal_list_item_t super;
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/** MTL instance that created this connection */
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struct mca_mtl_ofi_module_t *mtl_ofi_module;
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/** The peer's fi_addr */
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fi_addr_t peer_fiaddr;
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};
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typedef struct mca_mtl_ofi_endpoint_t mca_mtl_ofi_endpoint_t;
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static inline mca_mtl_ofi_endpoint_t *ompi_mtl_ofi_get_endpoint (struct mca_mtl_base_module_t* mtl, ompi_proc_t *ompi_proc)
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{
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if (OPAL_UNLIKELY(NULL == ompi_proc->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_MTL])) {
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if (OPAL_UNLIKELY(OMPI_SUCCESS != ompi_mtl_ofi_add_procs(mtl, 1, &ompi_proc))) {
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/* Fatal error. exit() out */
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opal_output(0, "%s:%d: *** The Open MPI OFI MTL is aborting the MPI job (via exit(3)).\n",
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__FILE__, __LINE__);
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fflush(stderr);
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exit(1);
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}
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}
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return ompi_proc->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_MTL];
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}
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END_C_DECLS
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#endif
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