/*
* Copyright (c) 2004-2007 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) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006-2011 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2011 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include "orte/types.h"
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#include "opal/mca/base/mca_base_param.h"
#include "orte/util/show_help.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/util/error_strings.h"
#include "orte/mca/rmaps/base/rmaps_private.h"
#include "orte/mca/rmaps/base/base.h"
#include "rmaps_rr.h"
/*
* Create a round-robin mapping for the job.
*/
static int orte_rmaps_rr_map(orte_job_t *jdata)
{
orte_app_context_t *app;
int i;
opal_list_t node_list;
opal_list_item_t *item;
orte_std_cntr_t num_nodes, num_slots;
int rc;
mca_base_component_t *c = &mca_rmaps_round_robin_component.base_version;
bool initial_map=true;
/* this mapper can only handle initial launch
* when rr mapping is desired - allow
* restarting of failed apps
*/
if (ORTE_JOB_CONTROL_RESTART & jdata->controls) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rr: job %s is being restarted - rr cannot map",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
if (NULL != jdata->map->req_mapper &&
0 != strcasecmp(jdata->map->req_mapper, c->mca_component_name)) {
/* a mapper has been specified, and it isn't me */
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rr: job %s not using rr mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
if (ORTE_MAPPING_RR < ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
/* I don't know how to do these - defer */
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rr: job %s not using rr mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rr: mapping job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* flag that I did the mapping */
if (NULL != jdata->map->last_mapper) {
free(jdata->map->last_mapper);
}
jdata->map->last_mapper = strdup(c->mca_component_name);
/* start at the beginning... */
jdata->num_procs = 0;
/* cycle through the app_contexts, mapping them sequentially */
for(i=0; i < jdata->apps->size; i++) {
if (NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, i))) {
continue;
}
/* setup the nodelist here in case we jump to error */
OBJ_CONSTRUCT(&node_list, opal_list_t);
/* if the number of processes wasn't specified, then we know there can be only
* one app_context allowed in the launch, and that we are to launch it across
* all available slots. We'll double-check the single app_context rule first
*/
if (0 == app->num_procs && 1 < jdata->num_apps) {
orte_show_help("help-orte-rmaps-rr.txt", "orte-rmaps-rr:multi-apps-and-zero-np",
true, jdata->num_apps, NULL);
rc = ORTE_ERR_SILENT;
goto error;
}
/* for each app_context, we have to get the list of nodes that it can
* use since that can now be modified with a hostfile and/or -host
* option
*/
if(ORTE_SUCCESS != (rc = orte_rmaps_base_get_target_nodes(&node_list, &num_slots, app,
jdata->map->mapping, initial_map))) {
ORTE_ERROR_LOG(rc);
goto error;
}
num_nodes = (orte_std_cntr_t)opal_list_get_size(&node_list);
/* flag that all subsequent requests should not reset the node->mapped flag */
initial_map = false;
/* if a bookmark exists from some prior mapping, set us to start there */
jdata->bookmark = orte_rmaps_base_get_starting_point(&node_list, jdata);
if (0 == app->num_procs) {
/* set the num_procs to equal the number of slots on these mapped nodes */
app->num_procs = num_slots;
}
/* Make assignments */
if (ORTE_MAPPING_BYNODE == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_bynode(jdata, app, &node_list, num_slots,
app->num_procs);
} else if (ORTE_MAPPING_BYSLOT == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byslot(jdata, app, &node_list, num_slots,
app->num_procs);
#if OPAL_HAVE_HWLOC
} else if (ORTE_MAPPING_BYHWTHREAD == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_PU, 0);
} else if (ORTE_MAPPING_BYCORE == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_CORE, 0);
} else if (ORTE_MAPPING_BYL1CACHE == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_CACHE, 1);
} else if (ORTE_MAPPING_BYL2CACHE == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_CACHE, 2);
} else if (ORTE_MAPPING_BYL3CACHE == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_CACHE, 3);
} else if (ORTE_MAPPING_BYSOCKET == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_SOCKET, 0);
} else if (ORTE_MAPPING_BYNUMA == ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
rc = orte_rmaps_rr_byobj(jdata, app, &node_list, num_slots,
app->num_procs, HWLOC_OBJ_NODE, 0);
#endif
} else {
/* unrecognized mapping directive */
orte_show_help("help-orte-rmaps-base.txt", "unrecognized-policy",
true, "mapping",
orte_rmaps_base_print_mapping(jdata->map->mapping));
rc = ORTE_ERR_SILENT;
goto error;
}
if (ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto error;
}
/* compute vpids and add proc objects to the job - do this after
* each app_context so that the ranks within each context are
* contiguous
*/
if (ORTE_SUCCESS != (rc = orte_rmaps_base_compute_vpids(jdata, app, &node_list))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* track the total number of processes we mapped - must update
* this value AFTER we compute vpids so that computation
* is done correctly
*/
jdata->num_procs += app->num_procs;
/* cleanup the node list - it can differ from one app_context
* to another, so we have to get it every time
*/
while (NULL != (item = opal_list_remove_first(&node_list))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&node_list);
}
return ORTE_SUCCESS;
error:
while(NULL != (item = opal_list_remove_first(&node_list))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&node_list);
return rc;
}
orte_rmaps_base_module_t orte_rmaps_round_robin_module = {
orte_rmaps_rr_map
};