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openmpi/orte/mca/sds/pipe/sds_pipe_module.c
Ralph Castain 6d6cebb4a7 Bring over the update to terminate orteds that are generated by a dynamic spawn such as comm_spawn. This introduces the concept of a job "family" - i.e., jobs that have a parent/child relationship. Comm_spawn'ed jobs have a parent (the one that spawned them). We track that relationship throughout the lineage - i.e., if a comm_spawned job in turn calls comm_spawn, then it has a parent (the one that spawned it) and a "root" job (the original job that started things).
Accordingly, there are new APIs to the name service to support the ability to get a job's parent, root, immediate children, and all its descendants. In addition, the terminate_job, terminate_orted, and signal_job APIs for the PLS have been modified to accept attributes that define the extent of their actions. For example, doing a "terminate_job" with an attribute of ORTE_NS_INCLUDE_DESCENDANTS will terminate the given jobid AND all jobs that descended from it.

I have tested this capability on a MacBook under rsh, Odin under SLURM, and LANL's Flash (bproc). It worked successfully on non-MPI jobs (both simple and including a spawn), and MPI jobs (again, both simple and with a spawn).

This commit was SVN r12597.
2006-11-14 19:34:59 +00:00

94 строки
2.6 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#include "orte_config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include "orte/orte_constants.h"
#include "orte/util/proc_info.h"
#include "opal/util/output.h"
#include "opal/mca/base/mca_base_param.h"
#include "orte/dss/dss.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/ns/ns.h"
#include "orte/mca/ns/base/base.h"
#include "orte/mca/sds/sds.h"
#include "orte/mca/sds/base/base.h"
#include "orte/mca/sds/pipe/sds_pipe.h"
orte_sds_base_module_t orte_sds_pipe_module = {
orte_sds_base_basic_contact_universe,
orte_sds_pipe_set_name,
orte_sds_pipe_finalize,
};
int
orte_sds_pipe_set_name(void)
{
int rc, fd, id;
orte_process_name_t name;
size_t num_procs;
/* lookup the fd to use */
id = mca_base_param_register_int("nds","pipe","fd", NULL, 3);
mca_base_param_lookup_int(id, &fd);
rc = read(fd,&name,sizeof(name));
if(rc != sizeof(name)) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
if(ORTE_SUCCESS != (rc = orte_dss.copy((void**)&orte_process_info.my_name, &name, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
return rc;
}
rc = read(fd,&orte_process_info.vpid_start, sizeof(orte_process_info.vpid_start));
if(rc != sizeof(orte_process_info.vpid_start)) {
opal_output(0, "orte_ns_nds_pipe_get: read returned %d, errno=%d\n", rc, errno);
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
rc = read(fd,&num_procs, sizeof(num_procs));
if(rc != sizeof(num_procs)) {
opal_output(0, "orte_ns_nds_pipe_get: read returned %d, errno=%d\n", rc, errno);
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
orte_process_info.num_procs = (orte_std_cntr_t)num_procs;
close(fd);
return ORTE_SUCCESS;
}
int
orte_sds_pipe_finalize(void)
{
return ORTE_SUCCESS;
}