f5ad90c920
Proposed extensions for Open MPI: - If MPI_INITLIZED is invoked and MPI is only partially initialized, wait until MPI is fully initialized before returning. - If MPI_FINALIZED is invoked and MPI is only partially finalized, wait until MPI is fully finalized before returning. - If the ompi_mpix_allow_multi_init MCA param is true, allow MPI_INIT and MPI_INIT_THREAD to be invoked multiple times without error (MPI will be safely initialized only the first time it is invoked).
89 строки
3.0 KiB
C
89 строки
3.0 KiB
C
/*
|
|
* Copyright (c) 2004-2007 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) 2004-2006 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 (c) 2010 Oak Ridge National Labs. All rights reserved.
|
|
* Copyright (c) 2015 Research Organization for Information Science
|
|
* and Technology (RIST). All rights reserved.
|
|
* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "opal/util/show_help.h"
|
|
#include "ompi/mpi/c/bindings.h"
|
|
#include "ompi/runtime/params.h"
|
|
#include "ompi/communicator/communicator.h"
|
|
#include "ompi/errhandler/errhandler.h"
|
|
#include "ompi/constants.h"
|
|
|
|
#if OMPI_BUILD_MPI_PROFILING
|
|
#if OPAL_HAVE_WEAK_SYMBOLS
|
|
#pragma weak MPI_Init_thread = PMPI_Init_thread
|
|
#endif
|
|
#define MPI_Init_thread PMPI_Init_thread
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Init_thread";
|
|
|
|
|
|
int MPI_Init_thread(int *argc, char ***argv, int required,
|
|
int *provided)
|
|
{
|
|
int err;
|
|
|
|
if ( MPI_PARAM_CHECK ) {
|
|
if (required < MPI_THREAD_SINGLE || required > MPI_THREAD_MULTIPLE) {
|
|
ompi_mpi_errors_are_fatal_comm_handler(NULL, NULL, FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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_THREAD_MULTIPLE
|
|
*provided = MPI_THREAD_MULTIPLE;
|
|
#else
|
|
*provided = MPI_THREAD_SINGLE;
|
|
#endif
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* Since we don't have a communicator to invoke an errorhandler on
|
|
here, don't use the fancy-schmancy ERRHANDLER macros; they're
|
|
really designed for real communicator objects. Just use the
|
|
back-end function directly. */
|
|
|
|
if (MPI_SUCCESS != err) {
|
|
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
|
|
err < 0 ? ompi_errcode_get_mpi_code(err) :
|
|
err, FUNC_NAME);
|
|
}
|
|
|
|
OPAL_CR_INIT_LIBRARY();
|
|
|
|
return MPI_SUCCESS;
|
|
}
|