c10bbfded6
* Include a 'demo' component that shows some of the features.
* Currently has hooks for:
- MPI_Initialized
- top, bottom
- MPI_Init_thread
- top, bottom
- MPI_Finalized
- top, bottom
- MPI_Init
- top (pre-opal_init), top (post-opal_init), error, bottom
- MPI_Finalize
- top, bottom
* Other places in ompi can 'register' to hook into any one of these places
by passing back a component structure filled with function pointers.
* Add a `MCA_BASE_COMPONENT_FLAG_REQUIRED` flag to the MCA structure that
is checked by the `hook` framework. If a required, static component has
been excluded then the `hook` framework will fail to initialize.
- See note in `opal/mca/mca.h` as to why this is checked in the `hook`
framework and not in `opal/mca/base/mca_base_component_find.c`
Signed-off-by: Joshua Hursey <jhursey@us.ibm.com>
84 строки
3.0 KiB
C
84 строки
3.0 KiB
C
/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2015 Intel, Inc. All rights reserved
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/mca/hook/base/base.h"
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#if OMPI_BUILD_MPI_PROFILING
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#if OPAL_HAVE_WEAK_SYMBOLS
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#pragma weak MPI_Finalized = PMPI_Finalized
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#endif
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#define MPI_Finalized PMPI_Finalized
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#endif
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static const char FUNC_NAME[] = "MPI_Finalized";
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int MPI_Finalized(int *flag)
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{
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OPAL_CR_NOOP_PROGRESS();
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ompi_hook_base_mpi_finalized_top(flag);
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/* We must obtain the lock to guarnatee consistent values of
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ompi_mpi_initialized and ompi_mpi_finalized. Note, too, that
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this lock is held for the bulk of the duration of
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ompi_mpi_init() and ompi_mpi_finalize(), so when we get the
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lock, we are guaranteed that some other thread is not part way
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through initialization or finalization. */
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opal_mutex_lock(&ompi_mpi_bootstrap_mutex);
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if (MPI_PARAM_CHECK) {
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if (NULL == flag) {
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/* If we have an error, the action that we take depends on
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whether we're currently (after MPI_Init and before
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MPI_Finalize) or not */
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if (ompi_mpi_initialized && !ompi_mpi_finalized) {
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opal_mutex_unlock(&ompi_mpi_bootstrap_mutex);
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
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FUNC_NAME);
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} else {
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opal_mutex_unlock(&ompi_mpi_bootstrap_mutex);
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/* We have no MPI object here so call ompi_errhandle_invoke
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* directly */
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return ompi_errhandler_invoke(NULL, NULL, -1,
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ompi_errcode_get_mpi_code(MPI_ERR_ARG),
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FUNC_NAME);
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}
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}
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}
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*flag = ompi_mpi_finalized;
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opal_mutex_unlock(&ompi_mpi_bootstrap_mutex);
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ompi_hook_base_mpi_finalized_bottom(flag);
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return MPI_SUCCESS;
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}
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