60 строки
2.0 KiB
C
60 строки
2.0 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2015 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012-2015 Inria. All rights reserved.
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* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
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* 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 "ompi_config.h"
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#include <stdio.h>
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#include "ompi/constants.h"
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#include "ompi/mca/topo/base/base.h"
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/* This function is invoked by the top-level MPI API functions to
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lazily load the topo framework components (if it wasn't already --
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it's safe to invoke this function multiple times). We do this
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because most MPI apps don't use MPI topology functions, so we might
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as well not load them unless we have to. */
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int mca_topo_base_lazy_init(void)
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{
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int err;
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if (!mca_base_framework_is_open (&ompi_topo_base_framework)) {
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/**
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* Register and open all available components, giving them a chance to access the MCA parameters.
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*/
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err = mca_base_framework_open (&ompi_topo_base_framework, MCA_BASE_OPEN_DEFAULT);
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if (OMPI_SUCCESS != err) {
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return err;
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}
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if (OMPI_SUCCESS !=
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(err = mca_topo_base_find_available(OPAL_ENABLE_PROGRESS_THREADS, 1))) {
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return err;
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}
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}
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return OMPI_SUCCESS;
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}
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