185 строки
6.1 KiB
C
185 строки
6.1 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; -*- */
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/*
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* Copyright (c) 2004-2010 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) 2004-2007 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) 2004-2007 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) 2009 Cisco Systems, 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 <stdio.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNIST_H */
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#include "opal/mca/mca.h"
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#include "opal/util/output.h"
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#include "opal/mca/base/base.h"
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#include "ompi/constants.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/mca/pml/base/base.h"
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#include "ompi/mca/pml/base/pml_base_request.h"
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/*
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* The following file was created by configure. It contains extern
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* statements and the definition of an array of pointers to each
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* component's public mca_base_component_t struct.
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*/
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#include "ompi/mca/pml/base/static-components.h"
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int mca_pml_base_progress(void)
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{
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return OMPI_SUCCESS;
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}
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#define xstringify(pml) #pml
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#define stringify(pml) xstringify(pml)
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/*
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* Global variables
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*/
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int mca_pml_base_output = 0;
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mca_pml_base_module_t mca_pml = {
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NULL, /* pml_add_procs */
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NULL, /* pml_del_procs */
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NULL, /* pml_enable */
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mca_pml_base_progress, /* pml_progress */
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NULL, /* pml_add_comm */
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NULL, /* pml_del_comm */
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NULL, /* pml_irecv_init */
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NULL, /* pml_irecv */
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NULL, /* pml_recv */
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NULL, /* pml_isend_init */
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NULL, /* pml_isend */
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NULL, /* pml_send */
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NULL, /* pml_iprobe */
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NULL, /* pml_probe */
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NULL, /* pml_start */
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NULL, /* pml_dump */
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NULL, /* pml_ft_event */
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0, /* pml_max_contextid */
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0 /* pml_max_tag */
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};
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opal_list_t mca_pml_base_components_available;
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mca_pml_base_component_t mca_pml_base_selected_component;
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opal_pointer_array_t mca_pml_base_pml;
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/**
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* Function for finding and opening either all MCA components, or the one
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* that was specifically requested via a MCA parameter.
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*/
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int mca_pml_base_open(void)
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{
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int value;
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#if OPAL_ENABLE_FT_CR == 1
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char* wrapper_pml = NULL;
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#endif
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/*
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* Register some MCA parameters
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*/
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/* Debugging/Verbose output */
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mca_base_param_reg_int_name("pml",
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"base_verbose",
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"Verbosity level of the PML framework",
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false, false,
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0, &value);
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mca_pml_base_output = opal_output_open(NULL);
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opal_output_set_verbosity(mca_pml_base_output, value);
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/**
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* Construct the send and receive request queues. There are 2 reasons to do it
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* here. First, as they are globals it's better to construct them in one common
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* place. Second, in order to be able to allow the external debuggers to show
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* their content, they should get constructed as soon as possible once the MPI
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* process is started.
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*/
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OBJ_CONSTRUCT(&mca_pml_base_send_requests, ompi_free_list_t);
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OBJ_CONSTRUCT(&mca_pml_base_recv_requests, ompi_free_list_t);
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OBJ_CONSTRUCT(&mca_pml_base_pml, opal_pointer_array_t);
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/* Open up all available components */
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if (OMPI_SUCCESS !=
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mca_base_components_open("pml", mca_pml_base_output, mca_pml_base_static_components,
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&mca_pml_base_components_available,
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!MCA_ompi_pml_DIRECT_CALL)) {
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return OMPI_ERROR;
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}
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/* Set a sentinel in case we don't select any components (e.g.,
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ompi_info) */
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mca_pml_base_selected_component.pmlm_finalize = NULL;
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/**
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* Right now our selection of BTLs is completely broken. If we have
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* multiple PMLs that use BTLs than we will open all BTLs several times, leading to
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* undefined behaviors. The simplest solution, at least until we
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* figure out the correct way to do it, is to force a default PML that
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* uses BTLs and any other PMLs that do not in the mca_pml_base_pml array.
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*/
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#if MCA_ompi_pml_DIRECT_CALL
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opal_pointer_array_add(&mca_pml_base_pml,
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strdup(stringify(MCA_ompi_pml_DIRECT_CALL_COMPONENT)));
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#else
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{
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char* default_pml = NULL;
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mca_base_param_reg_string_name("pml", NULL,
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"Specify a specific PML to use",
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false, false, "", &default_pml);
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if( (0 == strlen(default_pml)) || (default_pml[0] == '^') ) {
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opal_pointer_array_add(&mca_pml_base_pml, strdup("ob1"));
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opal_pointer_array_add(&mca_pml_base_pml, strdup("cm"));
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} else {
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opal_pointer_array_add(&mca_pml_base_pml, strdup(default_pml));
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}
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free (default_pml);
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}
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#if OPAL_ENABLE_FT_CR == 1
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/*
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* Which PML Wrapper component to use, if any
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* - NULL or "" = No wrapper
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* - ow. select that specific wrapper component
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*/
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mca_base_param_reg_string_name("pml", "wrapper",
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"Use a Wrapper component around the selected PML component",
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false, false,
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NULL, &wrapper_pml);
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if( NULL != wrapper_pml ) {
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opal_pointer_array_add(&mca_pml_base_pml, wrapper_pml);
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}
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#endif
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#endif
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return OMPI_SUCCESS;
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}
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