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/*
* Copyright (c) 2011-2018 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2013-2020 Intel, Inc. All rights reserved.
* Copyright (c) 2016-2017 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2019 IBM Corporation. All rights reserved.
* Copyright (c) 2021 Nanook Consulting. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/constants.h"
#include "opal/mca/base/base.h"
#include "opal/mca/mca.h"
#include "opal/mca/threads/tsd.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "opal/mca/hwloc/base/base.h"
#include "opal/mca/hwloc/hwloc-internal.h"
/*
* The following file was created by configure. It contains extern
* statements and the definition of an array of pointers to each
* component's public mca_base_component_t struct.
*/
#include "opal/mca/hwloc/base/static-components.h"
/*
* Globals
*/
bool opal_hwloc_base_inited = false;
hwloc_topology_t opal_hwloc_topology = NULL;
hwloc_cpuset_t opal_hwloc_my_cpuset = NULL;
opal_hwloc_base_mbfa_t opal_hwloc_base_mbfa = OPAL_HWLOC_BASE_MBFA_WARN;
extern bool opal_hwloc_topo_in_shmem;
static mca_base_var_enum_value_t hwloc_failure_action[] = {{OPAL_HWLOC_BASE_MBFA_SILENT, "silent"},
{OPAL_HWLOC_BASE_MBFA_WARN, "warn"},
{OPAL_HWLOC_BASE_MBFA_ERROR, "error"},
{0, NULL}};
static int opal_hwloc_base_register(mca_base_register_flag_t flags);
static int opal_hwloc_base_open(mca_base_open_flag_t flags);
static int opal_hwloc_base_close(void);
MCA_BASE_FRAMEWORK_DECLARE(opal, hwloc, NULL, opal_hwloc_base_register, opal_hwloc_base_open,
opal_hwloc_base_close, mca_hwloc_base_static_components, 0);
static int opal_hwloc_base_register(mca_base_register_flag_t flags)
{
mca_base_var_enum_t *new_enum;
int ret;
/* hwloc_base_bind_failure_action */
opal_hwloc_base_mbfa = OPAL_HWLOC_BASE_MBFA_WARN;
mca_base_var_enum_create("hwloc memory bind failure action", hwloc_failure_action, &new_enum);
ret = mca_base_var_register(
"opal", "hwloc", "base", "mem_bind_failure_action",
"What Open MPI will do if it explicitly tries to bind memory to a specific NUMA location, "
"and fails. Note that this is a different case than the general allocation policy "
"described by hwloc_base_alloc_policy. A value of \"silent\" means that Open MPI will "
"proceed without comment. A value of \"warn\" means that Open MPI will warn the first time "
"this happens, but allow the job to continue (possibly with degraded performance). A "
"value of \"error\" means that Open MPI will abort the job if this happens.",
MCA_BASE_VAR_TYPE_INT, new_enum, 0, 0, OPAL_INFO_LVL_9, MCA_BASE_VAR_SCOPE_READONLY,
&opal_hwloc_base_mbfa);
OBJ_RELEASE(new_enum);
if (0 > ret) {
return ret;
}
return OPAL_SUCCESS;
}
static int opal_hwloc_base_open(mca_base_open_flag_t flags)
{
if (opal_hwloc_base_inited) {
return OPAL_SUCCESS;
}
opal_hwloc_base_inited = true;
/* to support tools such as ompi_info, add the components
* to a list
*/
if (OPAL_SUCCESS != mca_base_framework_components_open(&opal_hwloc_base_framework, flags)) {
return OPAL_ERROR;
}
return OPAL_SUCCESS;
}
static void free_object(hwloc_obj_t obj)
{
opal_hwloc_obj_data_t *data;
unsigned k;
/* free any data hanging on this object */
if (NULL != obj->userdata) {
data = (opal_hwloc_obj_data_t *) obj->userdata;
OBJ_RELEASE(data);
obj->userdata = NULL;
}
/* loop thru our children */
for (k = 0; k < obj->arity; k++) {
free_object(obj->children[k]);
}
}
static void free_topology(hwloc_topology_t topo)
{
hwloc_obj_t obj;
opal_hwloc_topo_data_t *rdata;
unsigned k;
if (!opal_hwloc_topo_in_shmem) {
obj = hwloc_get_root_obj(topo);
/* release the root-level userdata */
if (NULL != obj->userdata) {
rdata = (opal_hwloc_topo_data_t *) obj->userdata;
OBJ_RELEASE(rdata);
obj->userdata = NULL;
}
/* now recursively descend and release userdata
* in the rest of the objects
*/
for (k = 0; k < obj->arity; k++) {
free_object(obj->children[k]);
}
}
hwloc_topology_destroy(topo);
}
static int opal_hwloc_base_close(void)
{
int ret;
if (!opal_hwloc_base_inited) {
return OPAL_SUCCESS;
}
/* no need to close the component as it was statically opened */
/* for support of tools such as ompi_info */
ret = mca_base_framework_components_close(&opal_hwloc_base_framework, NULL);
if (OPAL_SUCCESS != ret) {
return ret;
}
/* free memory */
if (NULL != opal_hwloc_my_cpuset) {
hwloc_bitmap_free(opal_hwloc_my_cpuset);
opal_hwloc_my_cpuset = NULL;
}
/* destroy the topology */
if (NULL != opal_hwloc_topology) {
free_topology(opal_hwloc_topology);
opal_hwloc_topology = NULL;
}
/* All done */
opal_hwloc_base_inited = false;
return OPAL_SUCCESS;
}
static void obj_data_const(opal_hwloc_obj_data_t *ptr)
{
ptr->npus_calculated = false;
ptr->npus = 0;
ptr->idx = UINT_MAX;
ptr->num_bound = 0;
}
OBJ_CLASS_INSTANCE(opal_hwloc_obj_data_t, opal_object_t, obj_data_const, NULL);
static void sum_const(opal_hwloc_summary_t *ptr)
{
ptr->num_objs = 0;
ptr->rtype = 0;
OBJ_CONSTRUCT(&ptr->sorted_by_dist_list, opal_list_t);
}
static void sum_dest(opal_hwloc_summary_t *ptr)
{
opal_list_item_t *item;
while (NULL != (item = opal_list_remove_first(&ptr->sorted_by_dist_list))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&ptr->sorted_by_dist_list);
}
OBJ_CLASS_INSTANCE(opal_hwloc_summary_t, opal_list_item_t, sum_const, sum_dest);
static void topo_data_const(opal_hwloc_topo_data_t *ptr)
{
ptr->available = NULL;
OBJ_CONSTRUCT(&ptr->summaries, opal_list_t);
ptr->userdata = NULL;
}
static void topo_data_dest(opal_hwloc_topo_data_t *ptr)
{
opal_list_item_t *item;
if (NULL != ptr->available) {
hwloc_bitmap_free(ptr->available);
}
while (NULL != (item = opal_list_remove_first(&ptr->summaries))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&ptr->summaries);
ptr->userdata = NULL;
}
OBJ_CLASS_INSTANCE(opal_hwloc_topo_data_t, opal_object_t, topo_data_const, topo_data_dest);
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