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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2014 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* Copyright (c) 2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2021 Amazon.com, Inc. or its affiliates. All Rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/tool/mpit-internal.h"
#include "ompi/runtime/ompi_info_support.h"
#include "opal/include/opal/sys/atomic.h"
#include "opal/runtime/opal.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_T_init_thread = PMPI_T_init_thread
#endif
#define MPI_T_init_thread PMPI_T_init_thread
#endif
extern opal_mutex_t ompi_mpit_big_lock;
extern volatile uint32_t ompi_mpit_init_count;
extern volatile int32_t initted;
int MPI_T_init_thread (int required, int *provided)
{
int rc = MPI_SUCCESS;
ompi_mpit_lock ();
do {
if (0 != ompi_mpit_init_count++) {
break;
}
/* call opal_init_util to initialize the MCA system */
rc = opal_init_util (NULL, NULL);
if (OPAL_SUCCESS != rc) {
rc = MPI_T_ERR_INVALID;
break;
}
/* register all parameters */
rc = ompi_info_register_framework_params (NULL);
if (OMPI_SUCCESS != rc) {
rc = MPI_T_ERR_INVALID;
break;
}
/* determine the thread level. TODO -- this might
be wrong */
ompi_mpi_thread_level (required, provided);
} while (0);
ompi_mpit_unlock ();
return rc;
}
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