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openmpi/orte/mca/plm/base/plm_base_heartbeat.c
Ralph Castain a07660aea8 Bring over the IOF completion changes. This commit fixes the long-occurring problem whereby application procs could, under some circumstances, lose their final prints to stdout/err. The commit includes:
1. coordination of job completion notification to include a requirement for both waitpid detection AND notification that all iof pipes have been closed by the app

2. change of all IOF read and write events to be non-persistent so they can properly be shutdown and restarted only when required

3. addition of a delay (currently set to 10ms) before restarting the stdin read event. This was required to ensure that the stdout, stderr, and stddiag read events had an opportunity to be serviced in scenarios where large files are attached to stdin.

This commit was SVN r20064.
2008-12-03 17:45:42 +00:00

143 строки
4.2 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 (c) 2007 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#include "orte_config.h"
#include "orte/constants.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "opal/dss/dss.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/runtime/orte_globals.h"
#include "orte/util/show_help.h"
#include "orte/runtime/orte_wait.h"
#include "orte/util/name_fns.h"
#include "orte/mca/plm/base/plm_private.h"
#define HEARTBEAT_CK 2
void orte_plm_base_heartbeat(int fd, short event, void *arg)
{
opal_buffer_t buf;
orte_plm_cmd_flag_t command = ORTE_PLM_HEARTBEAT_CMD;
opal_event_t *tmp = (opal_event_t*)arg;
struct timeval now;
int rc;
/* setup the buffer */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
/* tell the HNP this is a heartbeat */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &command, 1, ORTE_PLM_CMD))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
/* send heartbeat to HNP */
if (0 > (rc = orte_rml.send_buffer(ORTE_PROC_MY_HNP, &buf, ORTE_RML_TAG_PLM, 0))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
/* reset the timer */
now.tv_sec = orte_heartbeat_rate;
now.tv_usec = 0;
opal_evtimer_add(tmp, &now);
CLEANUP:
OBJ_DESTRUCT(&buf);
}
/* this function automatically gets periodically called
* by the event library so we can check on the state
* of the various orteds
*/
static void check_heartbeat(int fd, short dummy, void *arg)
{
orte_vpid_t v;
orte_proc_t **procs;
orte_job_t *daemons;
struct timeval timeout;
bool died = false;
opal_event_t *tmp = (opal_event_t*)arg;
struct timeval now;
OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
"%s plm:base:check_heartbeat",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* if we are aborting or shutting down, ignore this */
if (orte_abnormal_term_ordered || 0 == orte_heartbeat_rate) {
return;
}
/* get the job object for the daemons */
if (NULL == (daemons = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return;
}
procs = (orte_proc_t**)daemons->procs->addr;
/* get current time */
gettimeofday(&timeout, NULL);
/* cycle through the daemons - make sure we check them all
* in case multiple daemons died so all of those that did die
* can be appropriately flagged
*/
for (v=1; v < daemons->num_procs; v++) {
if ((timeout.tv_sec - procs[v]->beat) > HEARTBEAT_CK*orte_heartbeat_rate) {
/* declare this orted dead */
procs[v]->state = ORTE_PROC_STATE_ABORTED;
procs[v]->exit_code = ORTE_ERROR_DEFAULT_EXIT_CODE;
if (NULL == daemons->aborted_proc) {
daemons->aborted_proc = procs[v];
}
ORTE_UPDATE_EXIT_STATUS(ORTE_ERROR_DEFAULT_EXIT_CODE);
died = true;
}
}
/* if any daemon died, abort */
if (died) {
orte_plm_base_launch_failed(ORTE_PROC_MY_NAME->jobid, -1,
ORTE_ERROR_DEFAULT_EXIT_CODE, ORTE_JOB_STATE_ABORTED);
return;
}
/* reset the timer */
now.tv_sec = HEARTBEAT_CK*orte_heartbeat_rate;
now.tv_usec = 0;
opal_evtimer_add(tmp, &now);
}
void orte_plm_base_start_heart(void)
{
/* if the heartbeat rate > 0, then start the heart */
if (0 < orte_heartbeat_rate) {
ORTE_TIMER_EVENT(HEARTBEAT_CK*orte_heartbeat_rate, 0, check_heartbeat);
}
}