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openmpi/orte/mca/plm/base/plm_base_receive.c
Ralph Castain b96a71b62e Enable restart of individual processes upon command via the errmgr callback function. It needs an external application to drive this capability, so normal operations shouldn't be affected.
Does not support MPI applications. More work coming to update daemon accounting on movement of procs across nodes.

This commit was SVN r21545.
2009-06-26 20:54:58 +00:00

379 строки
15 KiB
C

/* -*- 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
*
* $HEADER$
*/
/** @file:
*
*/
/*
* includes
*/
#include "orte_config.h"
#if HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "opal/mca/mca.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/dss/dss.h"
#include "orte/constants.h"
#include "orte/types.h"
#include "orte/util/proc_info.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/rml/rml_types.h"
#include "orte/mca/routed/routed.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/runtime/orte_wait.h"
#include "orte/mca/plm/plm_types.h"
#include "orte/mca/plm/plm.h"
#include "orte/mca/plm/base/plm_private.h"
#include "orte/mca/plm/base/base.h"
static bool recv_issued=false;
int orte_plm_base_comm_start(void)
{
int rc;
if (recv_issued) {
return ORTE_SUCCESS;
}
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive start comm",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_PLM,
ORTE_RML_NON_PERSISTENT,
orte_plm_base_recv,
NULL))) {
ORTE_ERROR_LOG(rc);
}
recv_issued = true;
return rc;
}
int orte_plm_base_comm_stop(void)
{
if (!recv_issued) {
return ORTE_SUCCESS;
}
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive stop comm",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_PLM);
recv_issued = false;
return ORTE_SUCCESS;
}
/* process incoming messages in order of receipt */
void orte_plm_base_receive_process_msg(int fd, short event, void *data)
{
orte_message_event_t *mev = (orte_message_event_t*)data;
orte_plm_cmd_flag_t command;
orte_std_cntr_t count;
orte_jobid_t job;
orte_job_t *jdata, *parent;
opal_buffer_t answer;
orte_vpid_t vpid;
orte_proc_t *proc;
orte_proc_state_t state;
orte_exit_code_t exit_code;
int rc, ret;
struct timeval beat;
orte_app_context_t *app, *child_app;
/* setup a default response */
OBJ_CONSTRUCT(&answer, opal_buffer_t);
job = ORTE_JOBID_INVALID;
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->buffer, &command, &count, ORTE_PLM_CMD))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
switch (command) {
case ORTE_PLM_LAUNCH_JOB_CMD:
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive job launch command",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* unpack the job object */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->buffer, &jdata, &count, ORTE_JOB))) {
ORTE_ERROR_LOG(rc);
goto ANSWER_LAUNCH;
}
/* if is a LOCAL slave cmd */
if (jdata->controls & ORTE_JOB_CONTROL_LOCAL_SLAVE) {
/* In this case, I cannot lookup job info. All I do is pass
* this along to the local launcher, IF it is available
*/
if (NULL == orte_plm.spawn) {
/* can't do this operation */
ORTE_ERROR_LOG(ORTE_ERR_NOT_SUPPORTED);
rc = ORTE_ERR_NOT_SUPPORTED;
goto ANSWER_LAUNCH;
}
if (ORTE_SUCCESS != (rc = orte_plm.spawn(jdata))) {
ORTE_ERROR_LOG(rc);
goto ANSWER_LAUNCH;
}
job = jdata->jobid;
} else { /* this is a GLOBAL launch cmd */
/* get the parent's job object */
if (NULL == (parent = orte_get_job_data_object(mev->sender.jobid))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
goto ANSWER_LAUNCH;
}
/* if the prefix was set in the parent's job, we need to transfer
* that prefix to the child's app_context so any further launch of
* orteds can find the correct binary. There always has to be at
* least one app_context in both parent and child, so we don't
* need to check that here. However, be sure not to overwrite
* the prefix if the user already provide it!
*/
app = (orte_app_context_t*)opal_pointer_array_get_item(parent->apps, 0);
child_app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, 0);
if (NULL != app->prefix_dir &&
NULL == child_app->prefix_dir) {
child_app->prefix_dir = strdup(app->prefix_dir);
}
/* find the sender's node in the job map */
if (NULL != (proc = (orte_proc_t*)opal_pointer_array_get_item(parent->procs, mev->sender.vpid))) {
/* set the bookmark so the child starts from that place - this means
* that the first child process could be co-located with the proc
* that called comm_spawn, assuming slots remain on that node. Otherwise,
* the procs will start on the next available node
*/
jdata->bookmark = proc->node;
}
/* launch it */
if (ORTE_SUCCESS != (rc = orte_plm.spawn(jdata))) {
ORTE_ERROR_LOG(rc);
goto ANSWER_LAUNCH;
}
job = jdata->jobid;
/* return the favor so that any repetitive comm_spawns track each other */
parent->bookmark = jdata->bookmark;
}
/* if the child is an ORTE job, wait for the procs to report they are alive */
if (!(jdata->controls & ORTE_JOB_CONTROL_NON_ORTE_JOB)) {
ORTE_PROGRESSED_WAIT(false, jdata->num_reported, jdata->num_procs);
}
ANSWER_LAUNCH:
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive job %s launched",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(job)));
/* pack the jobid to be returned */
if (ORTE_SUCCESS != (ret = opal_dss.pack(&answer, &job, 1, ORTE_JOBID))) {
ORTE_ERROR_LOG(ret);
}
/* send the response back to the sender */
if (0 > (ret = orte_rml.send_buffer(&mev->sender, &answer, ORTE_RML_TAG_PLM_PROXY, 0))) {
ORTE_ERROR_LOG(ret);
}
break;
case ORTE_PLM_UPDATE_PROC_STATE:
count = 1;
jdata = NULL;
while (ORTE_SUCCESS == (rc = opal_dss.unpack(mev->buffer, &job, &count, ORTE_JOBID))) {
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive got update_proc_state for job %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(job)));
/* lookup the job object */
if (NULL == (jdata = orte_get_job_data_object(job))) {
/* this job may already have been removed from the array, so just cleanly
* ignore this request
*/
goto CLEANUP;
}
count = 1;
while (ORTE_SUCCESS == (rc = opal_dss.unpack(mev->buffer, &vpid, &count, ORTE_VPID))) {
if (ORTE_VPID_INVALID == vpid) {
/* flag indicates that this job is complete - move on */
break;
}
/* unpack the state */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->buffer, &state, &count, ORTE_PROC_STATE))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
/* unpack the exit code */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->buffer, &exit_code, &count, ORTE_EXIT_CODE))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive got update_proc_state for vpid %lu state %x exit_code %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(unsigned long)vpid, (unsigned int)state, (int)exit_code));
/* retrieve the proc object */
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, vpid))) {
/* this proc is no longer in table - skip it */
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive proc %s is not in proc table",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_VPID_PRINT(vpid)));
continue;
}
/* update the termination counter IFF the state is changing to something
* indicating terminated
*/
if (ORTE_PROC_STATE_UNTERMINATED < state &&
ORTE_PROC_STATE_UNTERMINATED > proc->state) {
++jdata->num_terminated;
}
/* update the data */
proc->state = state;
proc->exit_code = exit_code;
/* update orte's exit status if it is non-zero */
ORTE_UPDATE_EXIT_STATUS(exit_code);
}
count = 1;
}
if (ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER != rc) {
ORTE_ERROR_LOG(rc);
} else {
rc = ORTE_SUCCESS;
}
/* NOTE: jdata CAN BE NULL. This is caused by an orted
* being ordered to kill all its procs, but there are no
* procs left alive on that node. This can happen, for example,
* when a proc aborts somewhere, but the procs on this node
* have completed.
* So check job has to know how to handle a NULL pointer
*/
orte_plm_base_check_job_completed(jdata);
break;
case ORTE_PLM_HEARTBEAT_CMD:
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive got heartbeat from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&mev->sender)));
/* lookup the daemon object */
if (NULL == (jdata = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid))) {
/* this job can not possibly have been removed, so this is an error */
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
goto CLEANUP;
}
gettimeofday(&beat, NULL);
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, mev->sender.vpid))) {
/* this proc is no longer in table - skip it */
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive daemon %s is not in proc table",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_VPID_PRINT(mev->sender.vpid)));
break;
}
proc->beat = beat.tv_sec;
break;
default:
ORTE_ERROR_LOG(ORTE_ERR_VALUE_OUT_OF_BOUNDS);
return;
}
CLEANUP:
/* release the message */
OBJ_RELEASE(mev);
OBJ_DESTRUCT(&answer);
/* see if an error occurred - if so, wakeup the HNP so we can exit */
if (ORTE_PROC_IS_HNP && ORTE_SUCCESS != rc) {
orte_trigger_event(&orte_exit);
}
}
/*
* handle message from proxies
* NOTE: The incoming buffer "buffer" is OBJ_RELEASED by the calling program.
* DO NOT RELEASE THIS BUFFER IN THIS CODE
*/
void orte_plm_base_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
int rc;
OPAL_OUTPUT_VERBOSE((5, orte_plm_globals.output,
"%s plm:base:receive got message from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender)));
/* don't process this right away - we need to get out of the recv before
* we process the message as it may ask us to do something that involves
* more messaging! Instead, setup an event so that the message gets processed
* as soon as we leave the recv.
*
* The macro makes a copy of the buffer, which we release above - the incoming
* buffer, however, is NOT released here, although its payload IS transferred
* to the message buffer for later processing
*/
ORTE_MESSAGE_EVENT(sender, buffer, tag, orte_plm_base_receive_process_msg);
/* reissue the recv */
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_PLM,
ORTE_RML_NON_PERSISTENT,
orte_plm_base_recv,
NULL))) {
ORTE_ERROR_LOG(rc);
}
return;
}