File: pml_crcpw_component.c

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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2004-2009 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2006 The University of Tennessee and The University
 *                         of Tennessee Research Foundation.  All rights
 *                         reserved.
 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
 *                         University of Stuttgart.  All rights reserved.
 * Copyright (c) 2004-2006 The Regents of the University of California.
 *                         All rights reserved.
 * Copyright (c) 2010      Cisco Systems, Inc. All rights reserved.
 * Copyright (c) 2015      Los Alamos National Security, LLC. All rights
 *                         reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 */

#include "ompi_config.h"
#include "opal/runtime/opal.h"
#include "opal/util/output.h"
#include "opal/mca/event/event.h"
#include "opal/mca/btl/base/base.h"

#include "mpi.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/mca/pml/base/pml_base_bsend.h"
#include "ompi/mca/pml/crcpw/pml_crcpw.h"
#include "ompi/mca/bml/base/base.h"

static int mca_pml_crcpw_component_register(void);

mca_pml_crcpw_component_t mca_pml_crcpw_component = {
    {
        /* First, the mca_base_component_t struct containing meta
           information about the component itself */

        .pmlm_version = {
            MCA_PML_BASE_VERSION_2_0_0,

            .mca_component_name = "crcpw",
            MCA_BASE_MAKE_VERSION(component, OMPI_MAJOR_VERSION, OMPI_MINOR_VERSION,
                                  OMPI_RELEASE_VERSION),
            .mca_open_component = mca_pml_crcpw_component_open,
            .mca_close_component = mca_pml_crcpw_component_close,
            .mca_register_component_params = mca_pml_crcpw_component_register,
        },
        .pmlm_data = {
            /* The component is checkpoint ready */
            MCA_BASE_METADATA_PARAM_CHECKPOINT
        },

        .pmlm_init = mca_pml_crcpw_component_init,
        .pmlm_finalize = mca_pml_crcpw_component_finalize,
    },
    /* Verbosity */
    0,
    /* Priority */
    PML_SELECT_WRAPPER_PRIORITY,
    /* Are we being used as a wrapper? */
    false
};

opal_free_list_t pml_state_list;
bool pml_crcpw_is_finalized = false;

static int mca_pml_crcpw_component_register(void)
{
    /*
     * Register some MCA parameters
     */
    mca_pml_crcpw_component.priority = PML_SELECT_WRAPPER_PRIORITY;
    (void) mca_base_component_var_register(&mca_pml_crcpw_component.super.pmlm_version, "priority",
                                           "Priority of the PML crcpw component",
                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
                                           OPAL_INFO_LVL_9,
                                           MCA_BASE_VAR_SCOPE_READONLY,
                                           &mca_pml_crcpw_component.priority);

    mca_pml_crcpw_component.verbose = 0;
    (void) mca_base_component_var_register(&mca_pml_crcpw_component.super.pmlm_version, "verbose",
                                           "Verbose level for the PML crcpw component",
                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
                                           OPAL_INFO_LVL_9,
                                           MCA_BASE_VAR_SCOPE_READONLY,
                                           &mca_pml_crcpw_component.verbose);

    return OMPI_SUCCESS;
}

int mca_pml_crcpw_component_open(void)
{
    opal_output_verbose( 10, mca_pml_crcpw_component.output_handle,
                         "pml:crcpw: component_open: Open");

    mca_pml_crcpw_component.output_handle = opal_output_open(NULL);
    if ( 0 != mca_pml_crcpw_component.verbose) {
        opal_output_set_verbosity(mca_pml_crcpw_component.output_handle,
                                  mca_pml_crcpw_component.verbose);
    }

    /*
     * Debug Output
     */
    opal_output_verbose(10, mca_pml_crcpw_component.output_handle,
                        "pml:crcpw: open()");
    opal_output_verbose(20, mca_pml_crcpw_component.output_handle,
                        "pml:crcpw: open: priority   = %d",
                        mca_pml_crcpw_component.priority);
    opal_output_verbose(20, mca_pml_crcpw_component.output_handle,
                        "pml:crcpw: open: verbosity  = %d",
                        mca_pml_crcpw_component.verbose);

    return OMPI_SUCCESS;
}


int mca_pml_crcpw_component_close(void)
{
    opal_output_verbose( 20, mca_pml_crcpw_component.output_handle,
                         "pml:crcpw: component_close: Close");

    return OMPI_SUCCESS;
}


mca_pml_base_module_t* mca_pml_crcpw_component_init(int* priority,
                                                     bool enable_progress_threads,
                                                     bool enable_mpi_threads)
{
    /* We use the PML_SELECT_WRAPPER_PRIORITY to indicate when this
     * component should wrap around what is already selected
     * If it is not set to this seminal value, then we are doing a
     * normal selection operation
     */
    if(*priority == PML_SELECT_WRAPPER_PRIORITY ) {
        opal_output_verbose( 20, mca_pml_crcpw_component.output_handle,
                             "pml:crcpw: component_init: Wrap the selected component %s",
                             mca_pml_base_selected_component.pmlm_version.mca_component_name);

        mca_pml_crcpw_module.wrapped_pml_component = mca_pml_base_selected_component;
        mca_pml_crcpw_module.wrapped_pml_module    = mca_pml;
        mca_pml_crcpw_component.pml_crcp_wrapped = true;

        opal_output_verbose( 20, mca_pml_crcpw_component.output_handle,
                             "pml:crcpw: component_init: Initalize Wrapper");

        OBJ_CONSTRUCT(&pml_state_list, opal_free_list_t);
        opal_free_list_init (&pml_state_list,
                             sizeof(ompi_crcp_base_pml_state_t),
                             opal_cache_line_size,
                             OBJ_CLASS(ompi_crcp_base_pml_state_t),
                             0,opal_cache_line_size,
                             5,  /* Initial number */
                             -1, /* Max = Unlimited */
                             64, /* Increment by */
                             NULL, 0, NULL, NULL, NULL);
    }
    else {
        opal_output_verbose( 20, mca_pml_crcpw_component.output_handle,
                             "pml:crcpw: component_init: Priority %d",
                             mca_pml_crcpw_component.priority);
    }


    *priority = mca_pml_crcpw_component.priority;

    pml_crcpw_is_finalized = false;

    return &mca_pml_crcpw_module.super;
}

int mca_pml_crcpw_component_finalize(void)
{
    opal_output_verbose( 20, mca_pml_crcpw_component.output_handle,
                         "pml:crcpw: component_finalize: Finalize");

    OBJ_DESTRUCT(&pml_state_list);

    pml_crcpw_is_finalized = true;

    if(mca_pml_crcpw_component.pml_crcp_wrapped) {
        return mca_pml_crcpw_module.wrapped_pml_component.pmlm_finalize();
    }

    return OMPI_SUCCESS;
}