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openmpi/orte/mca/rmaps/base/rmaps_base_ranking.c

738 строки
30 KiB
C
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At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 03:40:11 +00:00
/*
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 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) 2011 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <string.h>
#include "opal/class/opal_pointer_array.h"
#include "opal/util/if.h"
#include "opal/util/output.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/mca/hwloc/base/base.h"
#include "opal/threads/tsd.h"
#include "orte/types.h"
#include "orte/util/show_help.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/util/hostfile/hostfile.h"
#include "orte/util/dash_host/dash_host.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/ess/ess.h"
#include "orte/runtime/data_type_support/orte_dt_support.h"
#include "orte/mca/rmaps/base/rmaps_private.h"
#include "orte/mca/rmaps/base/base.h"
#if OPAL_HAVE_HWLOC
static int rank_span(orte_job_t *jdata,
hwloc_obj_type_t target,
unsigned cache_level)
{
orte_job_map_t *map;
hwloc_obj_t obj;
int num_objs, i, j, n, rc;
orte_vpid_t num_ranked=0;
orte_node_t *node;
orte_proc_t *proc;
orte_vpid_t vpid;
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span: for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* if the ranking is spanned, then we perform the
* ranking as if it was one big node - i.e., we
* rank one proc on each object, step to the next object
* moving across all the nodes, then wrap around to the
* first object on the first node.
*
* Node 0 Node 1
* Obj 0 Obj 1 Obj 0 Obj 1
* 0 4 1 5 2 6 3 7
* 8 12 9 13 10 14 11 15
*/
/* In the interest of getting this committed in finite time,
* just loop across the nodes and objects until all procs
* are mapped
*/
map = jdata->map;
vpid = 0;
while (vpid < jdata->num_procs) {
for (n=0; n < map->nodes->size && vpid < jdata->num_procs; n++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, n))) {
continue;
}
/* get the number of objects - only consider those we can actually use */
num_objs = opal_hwloc_base_get_nbobjs_by_type(node->topology, target,
cache_level, OPAL_HWLOC_AVAILABLE);
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span: found %d objects on node %s with %d procs",
num_objs, node->name, (int)node->num_procs);
/* for each object */
for (i=0; i < num_objs && vpid < jdata->num_procs; i++) {
obj = opal_hwloc_base_get_obj_by_type(node->topology, target,
cache_level, i, OPAL_HWLOC_AVAILABLE);
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span: working object %d", i);
/* cycle thru the procs on this node */
for (j=0; j < node->procs->size && vpid < jdata->num_procs; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span skipping proc %s - from another job, num_ranked %d",
ORTE_NAME_PRINT(&proc->name), num_ranked);
continue;
}
/* ignore procs that are already assigned */
if (ORTE_VPID_INVALID != proc->name.vpid) {
continue;
}
/* protect against bozo case */
if (NULL == proc->locale) {
ORTE_ERROR_LOG(ORTE_ERROR);
return ORTE_ERROR;
}
/* ignore procs not on this object */
if (!hwloc_bitmap_intersects(obj->cpuset, proc->locale->cpuset)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span: proc at position %d is not on object %d",
j, i);
continue;
}
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_span: assigning vpid %s", ORTE_VPID_PRINT(vpid));
proc->name.vpid = vpid++;
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
/* If there is an invalid epoch here, it's because it doesn't exist yet. */
if (0 == ORTE_EPOCH_CMP(ORTE_EPOCH_INVALID,proc->name.epoch)) {
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_MIN);
}
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* move to next object */
break;
}
}
}
}
return ORTE_SUCCESS;
}
static int rank_fill(orte_job_t *jdata,
hwloc_obj_type_t target,
unsigned cache_level)
{
orte_job_map_t *map;
hwloc_obj_t obj;
int num_objs, i, j, n, rc;
orte_vpid_t num_ranked=0;
orte_node_t *node;
orte_proc_t *proc;
orte_vpid_t vpid;
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill: for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* if the ranking is fill, then we rank all the procs
* within a given object before moving on to the next
*
* Node 0 Node 1
* Obj 0 Obj 1 Obj 0 Obj 1
* 0 1 4 5 8 9 12 13
* 2 3 6 7 10 11 14 15
*/
map = jdata->map;
vpid = 0;
for (n=0; n < map->nodes->size && vpid < jdata->num_procs; n++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, n))) {
continue;
}
/* get the number of objects - only consider those we can actually use */
num_objs = opal_hwloc_base_get_nbobjs_by_type(node->topology, target,
cache_level, OPAL_HWLOC_AVAILABLE);
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill: found %d objects on node %s with %d procs",
num_objs, node->name, (int)node->num_procs);
/* for each object */
for (i=0; i < num_objs && vpid < jdata->num_procs; i++) {
obj = opal_hwloc_base_get_obj_by_type(node->topology, target,
cache_level, i, OPAL_HWLOC_AVAILABLE);
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill: working object %d", i);
/* cycle thru the procs on this node */
for (j=0; j < node->procs->size && vpid < jdata->num_procs; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill skipping proc %s - from another job, num_ranked %d",
ORTE_NAME_PRINT(&proc->name), num_ranked);
continue;
}
/* ignore procs that are already assigned */
if (ORTE_VPID_INVALID != proc->name.vpid) {
continue;
}
/* protect against bozo case */
if (NULL == proc->locale) {
ORTE_ERROR_LOG(ORTE_ERROR);
return ORTE_ERROR;
}
/* ignore procs not on this object */
if (!hwloc_bitmap_intersects(obj->cpuset, proc->locale->cpuset)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill: proc at position %d is not on object %d",
j, i);
continue;
}
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_fill: assigning vpid %s", ORTE_VPID_PRINT(vpid));
proc->name.vpid = vpid++;
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
/* If there is an invalid epoch here, it's because it doesn't exist yet. */
if (0 == ORTE_EPOCH_CMP(ORTE_EPOCH_INVALID,proc->name.epoch)) {
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_MIN);
}
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
}
}
return ORTE_SUCCESS;
}
static int rank_by(orte_job_t *jdata,
hwloc_obj_type_t target,
unsigned cache_level)
{
orte_job_map_t *map;
hwloc_obj_t obj;
int num_objs, i, j, n;
orte_vpid_t num_ranked=0;
orte_node_t *node;
orte_proc_t *proc;
orte_vpid_t vpid;
opal_pointer_array_t objs;
bool all_done;
if (ORTE_RANKING_SPAN & ORTE_GET_RANKING_DIRECTIVE(jdata->map->ranking)) {
return rank_span(jdata, target, cache_level);
} else if (ORTE_RANKING_FILL & ORTE_GET_RANKING_DIRECTIVE(jdata->map->ranking)) {
return rank_fill(jdata, target, cache_level);
}
/* if ranking is not spanned or filled, then we
* default to assign ranks sequentially across
* target objects within a node until that node
* is fully ranked, and then move on to the next
* node
*
* Node 0 Node 1
* Obj 0 Obj 1 Obj 0 Obj 1
* 0 2 1 3 8 10 9 11
* 4 6 5 7 12 14 13 15
*/
/* setup the pointer array */
OBJ_CONSTRUCT(&objs, opal_pointer_array_t);
opal_pointer_array_init(&objs, 2, INT_MAX, 2);
map = jdata->map;
vpid = 0;
for (n=0; n < map->nodes->size && vpid < jdata->num_procs; n++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, n))) {
continue;
}
/* get the number of objects - only consider those we can actually use */
num_objs = opal_hwloc_base_get_nbobjs_by_type(node->topology, target,
cache_level, OPAL_HWLOC_AVAILABLE);
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_by: found %d objects on node %s with %d procs",
num_objs, node->name, (int)node->num_procs);
/* collect all the objects */
for (i=0; i < num_objs; i++) {
obj = opal_hwloc_base_get_obj_by_type(node->topology, target,
cache_level, i, OPAL_HWLOC_AVAILABLE);
opal_pointer_array_set_item(&objs, i, obj);
}
/* cycle across the objects, assigning a proc to each one,
* until all procs have been assigned - unfortunately, since
* more than this job may be mapped onto a node, the number
* of procs on the node can't be used to tell us when we
* are done. Instead, we have to just keep going until all
* procs are ranked - which means we have to make one extra
* pass thru the loop
*
* Perhaps someday someone will come up with a more efficient
* algorithm, but this works for now.
*/
all_done = false;
while (!all_done && vpid < jdata->num_procs) {
all_done = true;
/* cycle across the objects */
for (i=0; i < num_objs && vpid < jdata->num_procs; i++) {
obj = (hwloc_obj_t)opal_pointer_array_get_item(&objs, i);
/* find the next proc on this object */
for (j=0; j < node->procs->size && vpid < jdata->num_procs; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_by skipping proc %s - from another job, num_ranked %d",
ORTE_NAME_PRINT(&proc->name), num_ranked);
continue;
}
/* ignore procs that are already ranked */
if (ORTE_VPID_INVALID != proc->name.vpid) {
continue;
}
/* ignore procs on other objects */
if (!hwloc_bitmap_intersects(obj->cpuset, proc->locale->cpuset)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_by: proc at position %d is not on object %d",
j, i);
continue;
}
proc->name.vpid = vpid++;
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:rank_by: assigned rank %s", ORTE_VPID_PRINT(proc->name.vpid));
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
/* If there is an invalid epoch here, it's because it doesn't exist yet. */
if (0 == ORTE_EPOCH_CMP(ORTE_EPOCH_INVALID,proc->name.epoch)) {
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_MIN);
}
/* flag that one was mapped */
all_done = false;
/* move to next object */
break;
}
}
}
}
/* cleanup */
OBJ_DESTRUCT(&objs);
return ORTE_SUCCESS;
}
#endif
int orte_rmaps_base_compute_vpids(orte_job_t *jdata)
{
orte_job_map_t *map;
orte_vpid_t vpid, cnt;
int i, j;
orte_node_t *node;
orte_proc_t *proc, *ptr;
int rc;
map = jdata->map;
if (ORTE_RANK_BY_NODE == ORTE_GET_RANKING_POLICY(map->ranking) ||
ORTE_RANK_BY_BOARD == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:base: computing vpids by node for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* assign the ranks round-robin across nodes - only one board/node
* at this time, so they are equivalent
*/
cnt=0;
vpid=0;
while (cnt < jdata->num_procs) {
for (i=0; i < map->nodes->size; i++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, i))) {
continue;
}
for (j=0; j < node->procs->size; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
continue;
}
if (ORTE_VPID_INVALID != proc->name.vpid) {
/* vpid was already assigned, probably by the
* round-robin mapper. Some mappers require that
* we insert the proc into the jdata->procs
* array, while others will have already done it - so check and
* do the operation if required
*/
if (NULL == opal_pointer_array_get_item(jdata->procs, proc->name.vpid)) {
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* if we added it to the array, then account for
* it in our loop - otherwise don't as we would be
* double counting
*/
cnt++;
}
continue;
}
/* find next available vpid */
while (NULL != (ptr = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, vpid)) &&
ORTE_VPID_INVALID != ptr->name.vpid) {
vpid++;
}
proc->name.vpid = vpid++;
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
/* insert the proc into the jdata->procs array - can't already
* be there as the only way to this point in the code is for the
* vpid to have been INVALID
*/
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
return rc;
}
cnt++;
break; /* move on to next node */
}
}
}
return ORTE_SUCCESS;
}
if (ORTE_RANK_BY_SLOT == ORTE_GET_RANKING_POLICY(map->ranking)) {
/* assign the ranks sequentially */
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:base: computing vpids by slot for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
vpid = 0;
for (i=0; i < map->nodes->size; i++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, i))) {
continue;
}
for (j=0; j < node->procs->size; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
continue;
}
if (ORTE_VPID_INVALID == proc->name.vpid) {
/* find the next available vpid */
while (NULL != (ptr = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, vpid)) &&
ORTE_VPID_INVALID != ptr->name.vpid) {
vpid++;
}
proc->name.vpid = vpid++;
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
/* If there is an invalid epoch here, it's because it doesn't exist yet. */
if (0 == ORTE_EPOCH_CMP(ORTE_EPOCH_INVALID,proc->name.epoch)) {
ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_MIN);
}
}
/* some mappers require that we insert the proc into the jdata->procs
* array, while others will have already done it - so check and
* do the operation if required
*/
if (NULL == opal_pointer_array_get_item(jdata->procs, proc->name.vpid)) {
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
}
}
return ORTE_SUCCESS;
}
#if OPAL_HAVE_HWLOC
if (ORTE_RANK_BY_NUMA == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by NUMA for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_NODE, 0))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_SOCKET == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by socket for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_SOCKET, 0))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_L3CACHE == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by L3cache for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_CACHE, 3))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_L2CACHE == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by L2cache for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_CACHE, 2))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_L1CACHE == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by L1cache for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_CACHE, 1))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_CORE == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by core for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_CORE, 0))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
if (ORTE_RANK_BY_HWTHREAD == ORTE_GET_RANKING_POLICY(map->ranking)) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps: computing ranks by hwthread for job %s",
ORTE_JOBID_PRINT(jdata->jobid));
if (ORTE_SUCCESS != (rc = rank_by(jdata, HWLOC_OBJ_PU, 0))) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
#endif
return ORTE_ERR_NOT_IMPLEMENTED;
}
int orte_rmaps_base_compute_local_ranks(orte_job_t *jdata)
{
orte_std_cntr_t i;
int j, k;
orte_node_t *node;
orte_proc_t *proc, *psave, *psave2;
orte_vpid_t minv, minv2;
orte_local_rank_t local_rank;
orte_job_map_t *map;
orte_app_context_t *app;
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s rmaps:base:compute_usage",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* point to map */
map = jdata->map;
/* for each node in the map... */
for (i=0; i < map->nodes->size; i++) {
/* cycle through the array of procs on this node, setting
* local and node ranks, until we
* have done so for all procs on nodes in this map
*/
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(map->nodes, i))) {
continue;
}
/* init search values */
local_rank = 0;
/* the proc map may have holes in it, so cycle
* all the way through and avoid the holes
*/
for (k=0; k < node->procs->size; k++) {
/* if this proc is NULL, skip it */
if (NULL == opal_pointer_array_get_item(node->procs, k)) {
continue;
}
minv = ORTE_VPID_MAX;
minv2 = ORTE_VPID_MAX;
psave = NULL;
psave2 = NULL;
/* find the minimum vpid proc */
for (j=0; j < node->procs->size; j++) {
/* if this proc is NULL, skip it */
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(node->procs, j))) {
continue;
}
/* only look at procs for this job when
* determining local rank
*/
if (proc->name.jobid == jdata->jobid &&
ORTE_LOCAL_RANK_INVALID == proc->local_rank &&
proc->name.vpid < minv) {
minv = proc->name.vpid;
psave = proc;
}
/* no matter what job...still have to handle node_rank */
if (ORTE_NODE_RANK_INVALID == proc->node_rank &&
proc->name.vpid < minv2) {
minv2 = proc->name.vpid;
psave2 = proc;
}
}
if (NULL == psave && NULL == psave2) {
/* we must have processed them all for this node! */
break;
}
if (NULL != psave) {
psave->local_rank = local_rank;
++local_rank;
}
if (NULL != psave2) {
psave2->node_rank = node->next_node_rank;
node->next_node_rank++;
}
}
}
/* compute app_rank */
for (i=0; i < jdata->apps->size; i++) {
if (NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, i))) {
continue;
}
k=0;
/* loop thru all procs in job to find those from this app_context */
for (j=0; j < jdata->procs->size; j++) {
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, j))) {
continue;
}
if (proc->app_idx != app->idx) {
continue;
}
proc->app_rank = k++;
}
}
return ORTE_SUCCESS;
}
/* when we restart a process on a different node, we have to
* ensure that the node and local ranks assigned to the proc
* don't overlap with any pre-existing proc on that node. If
* we don't, then it would be possible for procs to conflict
* when opening static ports, should that be enabled.
*/
void orte_rmaps_base_update_local_ranks(orte_job_t *jdata, orte_node_t *oldnode,
orte_node_t *newnode, orte_proc_t *newproc)
{
int k;
orte_node_rank_t node_rank;
orte_local_rank_t local_rank;
orte_proc_t *proc;
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s rmaps:base:update_usage",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* if the node hasn't changed, then we can just use the
* pre-defined values
*/
if (oldnode == newnode) {
return;
}
/* if the node has changed, then search the new node for the
* lowest unused local and node rank
*/
node_rank = 0;
retry_nr:
for (k=0; k < newnode->procs->size; k++) {
/* if this proc is NULL, skip it */
if (NULL == (proc = (orte_proc_t *) opal_pointer_array_get_item(newnode->procs, k))) {
continue;
}
if (node_rank == proc->node_rank) {
node_rank++;
goto retry_nr;
}
}
newproc->node_rank = node_rank;
local_rank = 0;
retry_lr:
for (k=0; k < newnode->procs->size; k++) {
/* if this proc is NULL, skip it */
if (NULL == (proc = (orte_proc_t *) opal_pointer_array_get_item(newnode->procs, k))) {
continue;
}
/* ignore procs from other jobs */
if (proc->name.jobid != jdata->jobid) {
continue;
}
if (local_rank == proc->local_rank) {
local_rank++;
goto retry_lr;
}
}
newproc->local_rank = local_rank;
}