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openmpi/ompi/runtime/ompi_mpi_io.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

86 строки
2.0 KiB
C

/*
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "orte/mca/ns/ns_types.h"
#include "orte/mca/iof/iof.h"
#include "ompi/constants.h"
#if defined(__WINDOWS__)
#include <io.h>
#endif /* defined(__WINDOWS__) */
int ompi_mpi_init_io(void)
{
int fds[2];
int rc;
/* We need to add a NULL component for iof. Until then, this will have to do */
/* setup stdin */
rc = pipe(fds);
if(rc < 0) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
dup2(fds[0], 0);
close(fds[0]);
rc = mca_iof.iof_publish(
OMPI_PROC_MY_NAME,
MCA_IOF_SINK,
MCA_IOF_STDIN,
fds[1]);
if(rc != OMPI_SUCCESS)
return rc;
/* setup stdout */
rc = pipe(fds);
if(rc < 0) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
dup2(fds[1], 1);
close(fds[1]);
rc = mca_iof.iof_publish(
OMPI_PROC_MY_NAME,
MCA_IOF_SOURCE,
MCA_IOF_STDOUT,
fds[0]);
if(rc != OMPI_SUCCESS)
return rc;
/* setup stderr */
rc = pipe(fds);
if(rc < 0) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
dup2(fds[1], 2);
close(fds[1]);
rc = mca_iof.iof_publish(
OMPI_PROC_MY_NAME,
MCA_IOF_SOURCE,
MCA_IOF_STDERR,
fds[0]);
if(rc != OMPI_SUCCESS)
return rc;
return OMPI_SUCCESS;
}