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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/constants.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Init_thread = PMPI_Init_thread
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Init_thread";
int MPI_Init_thread(int *argc, char ***argv, int required,
int *provided)
{
int err;
MPI_Comm null = NULL;
/*
* A thread compliant MPI implementation will be able to return provided
* = MPI_THREAD_MULTIPLE. Such an implementation may always return provided
* = MPI_THREAD_MULTIPLE, irrespective of the value of required.
*/
#if OMPI_ENABLE_MPI_THREADS
*provided = MPI_THREAD_MULTIPLE;
#else
*provided = MPI_THREAD_SINGLE;
#endif
/* Ensure that we were not already initialized or finalized */
if (ompi_mpi_finalized) {
/* JMS show_help */
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_OTHER, FUNC_NAME);
} else if (ompi_mpi_initialized) {
/* JMS show_help */
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_OTHER, FUNC_NAME);
}
/* Call the back-end initialization function (we need to put as
little in this function as possible so that if it's profiled, we
don't lose anything) */
if (NULL != argc && NULL != argv) {
err = ompi_mpi_init(*argc, *argv, required, provided);
} else {
err = ompi_mpi_init(0, NULL, required, provided);
}
OMPI_ERRHANDLER_RETURN(err, null, err, FUNC_NAME);
}
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