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openmpi/ompi/mpi/c/init_thread.c
Ralph Castain b400b84162 Merge in the modified thread configure option branch per today's telecon.
Remove the --enable-progress-threads option as this is no longer functional, and hardcode OPAL_ENABLE_PROGRESS_THREADS to 0.

Replace the --enable-mpi-threads option with --enable-mpi-thread-multiple as this is clearer as to meaning. This option automatically turns "on" opal thread support if it wasn't already so specified. If the user specifies --disable-opal-multi-threads --enable-mpi-thread-multiple, we will error out with a message

Add a new --enable-opal-multi-threads option that turns "on" opal thread support without doing anything wrt mpi-thread-multiple

This commit was SVN r22841.
2010-03-16 23:10:50 +00:00

104 строки
3.5 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "orte/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 OPAL_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;
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
/* Ensure that we were not already initialized or finalized */
if (ompi_mpi_finalized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
orte_show_help("help-mpi-api.txt", "mpi-function-after-finalize",
true, FUNC_NAME);
}
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_OTHER, FUNC_NAME);
} else if (ompi_mpi_initialized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
orte_show_help("help-mpi-api.txt", "mpi-initialize-twice",
true, FUNC_NAME);
}
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_OTHER, FUNC_NAME);
}
OPAL_CR_ENTER_LIBRARY();
/* 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);
}
OPAL_CR_EXIT_LIBRARY();
/* 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);
}
return MPI_SUCCESS;
}