119 строки
3.5 KiB
C
119 строки
3.5 KiB
C
/*
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* Copyright (c) 2004-2008 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) 2007-2011 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 "opal_config.h"
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#include "opal/constants.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "opal/mca/common/hwloc/common_hwloc.h"
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#include "opal/mca/paffinity/paffinity.h"
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#include "paffinity_hwloc.h"
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/*
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* Public string showing the paffinity ompi_hwloc component version number
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*/
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const char *opal_paffinity_hwloc_component_version_string =
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"OPAL hwloc paffinity MCA component version " OPAL_VERSION;
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/*
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* Local function
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*/
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static int hwloc_open(void);
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static int hwloc_close(void);
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static int hwloc_register(void);
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/*
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* Instantiate the public struct with all of our public information
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* and pointers to our public functions in it
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*/
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opal_paffinity_hwloc_component_t mca_paffinity_hwloc_component = {
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{
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/* First, the mca_component_t struct containing meta information
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about the component itself */
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{
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OPAL_PAFFINITY_BASE_VERSION_2_0_1,
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/* Component name and version */
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"hwloc",
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OPAL_MAJOR_VERSION,
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OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION,
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/* Component open and close functions */
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hwloc_open,
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hwloc_close,
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opal_paffinity_hwloc_component_query,
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hwloc_register,
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},
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{
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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}
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},
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/* NULL fill the rest of the component data */
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};
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static int hwloc_register(void)
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{
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int i;
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/* Call the registration function of common hwloc */
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opal_common_hwloc_register();
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i = mca_base_param_find("common", NULL, "hwloc_version");
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if (OPAL_ERROR != i) {
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mca_base_param_reg_syn(i,
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&mca_paffinity_hwloc_component.super.base_version,
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"hwloc_version", false);
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}
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mca_base_param_reg_int(&mca_paffinity_hwloc_component.super.base_version,
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"priority",
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"Priority of the hwloc paffinity component",
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false, false, 40, NULL);
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return OPAL_SUCCESS;
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}
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static int hwloc_open(void)
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{
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/* Initialize hwloc */
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if (0 != hwloc_topology_init(&(mca_paffinity_hwloc_component.topology)) ||
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0 != hwloc_topology_load(mca_paffinity_hwloc_component.topology)) {
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return OPAL_ERR_NOT_AVAILABLE;
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}
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mca_paffinity_hwloc_component.topology_need_destroy = true;
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return OPAL_SUCCESS;
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}
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static int hwloc_close(void)
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{
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/* If we set up hwloc, tear it down */
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if (mca_paffinity_hwloc_component.topology_need_destroy) {
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hwloc_topology_destroy(mca_paffinity_hwloc_component.topology);
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mca_paffinity_hwloc_component.topology_need_destroy = false;
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}
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return OPAL_SUCCESS;
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}
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