235388161b
MPI_PARAM_CHECK, intended to be used as
if (MPI_PARAM_CHECK) {
/* ...do MPI param checks in here... */
}
MPI_PARAM_CHECK will be 0, 1, or lam_mpi_param_check.
This commit was SVN r785.
126 строки
3.2 KiB
C
126 строки
3.2 KiB
C
/*
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* $HEADER$
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*/
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#include "lam_config.h"
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#include "lam/constants.h"
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#include "lam/runtime/runtime.h"
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#include "mpi.h"
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#include "mpi/runtime/runtime.h"
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#include "mpi/communicator/communicator.h"
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#include "mpi/group/group.h"
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#include "mca/lam/base/base.h"
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#include "mca/mpi/base/base.h"
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#include "mca/mpi/ptl/ptl.h"
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#include "mca/mpi/ptl/base/base.h"
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#include "mca/mpi/pml/pml.h"
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#include "mca/mpi/pml/base/base.h"
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#include "mca/mpi/coll/coll.h"
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#include "mca/mpi/coll/base/base.h"
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/*
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* Global variables and symbols for the MPI layer
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*/
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bool lam_mpi_initialized = false;
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bool lam_mpi_finalized = false;
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bool lam_mpi_param_check = true;
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bool lam_mpi_thread_multiple = false;
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int lam_mpi_thread_requested = MPI_THREAD_SINGLE;
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int lam_mpi_thread_provided = MPI_THREAD_SINGLE;
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int lam_mpi_init(int argc, char **argv, int requested, int *provided)
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{
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int ret, param, value;
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bool allow_multi_user_threads;
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bool have_hidden_threads;
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/* Become a LAM process */
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if (LAM_SUCCESS != (ret = lam_init(argc, argv))) {
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return ret;
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}
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/* Open up the MCA */
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if (LAM_SUCCESS != (ret = mca_base_open())) {
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return ret;
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}
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/* Join the run-time environment */
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if (LAM_SUCCESS != (ret = lam_rte_init(&allow_multi_user_threads, &have_hidden_threads))) {
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return ret;
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}
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/* Open up relevant MCA modules. Do not open io, topo, or one
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module types here -- they are loaded upon demand (i.e., upon
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relevant constructors). */
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if (LAM_SUCCESS != (ret = mca_pml_base_open())) {
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/* JMS show_help */
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return ret;
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}
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if (LAM_SUCCESS != (ret = mca_ptl_base_open())) {
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/* JMS show_help */
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return ret;
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}
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if (LAM_SUCCESS != (ret = mca_coll_base_open())) {
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/* JMS show_help */
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return ret;
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}
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/* Select which pml, ptl, and coll modules to use, and determine the
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final thread level */
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if (LAM_SUCCESS !=
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(ret = mca_mpi_init_select_modules(requested, allow_multi_user_threads,
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have_hidden_threads, provided))) {
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/* JMS show_help */
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return ret;
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}
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/* initialize lam procs */
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if (LAM_SUCCESS != (ret = lam_proc_init())) {
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return ret;
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}
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/* initialize groups */
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if (LAM_SUCCESS != (ret = lam_group_init())) {
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return ret;
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}
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/* initialize communicators */
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if (LAM_SUCCESS != (ret = lam_comm_init())) {
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return ret;
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}
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/* If we have run-time MPI parameter checking possible, register
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an MCA paramter to find out if the user wants it on or off by
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default */
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param = mca_base_param_register_int("base", NULL, "mpi_param_check",
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"mpi_param_check", 0);
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mca_base_param_lookup_int(param, &value);
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lam_mpi_param_check = (bool) value;
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/* do module exchange */
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/* add all lam_proc_t's to PML */
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/* save the resulting thread levels */
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lam_mpi_thread_requested = requested;
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*provided = lam_mpi_thread_provided;
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lam_mpi_thread_multiple = (lam_mpi_thread_provided == MPI_THREAD_MULTIPLE);
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/* All done */
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lam_mpi_initialized = true;
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return MPI_SUCCESS;
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}
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