9613b3176c
After much work by Jeff and myself, and quite a lot of discussion, it has become clear that we simply cannot resolve the infinite loops caused by RML-involved subsystems calling orte_output. The original rationale for the change to orte_output has also been reduced by shifting the output of XML-formatted vs human readable messages to an alternative approach. I have globally replaced the orte_output/ORTE_OUTPUT calls in the code base, as well as the corresponding .h file name. I have test compiled and run this on the various environments within my reach, so hopefully this will prove minimally disruptive. This commit was SVN r18619.
633 строки
20 KiB
C
633 строки
20 KiB
C
/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*
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* These symbols are in a file by themselves to provide nice linker
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* semantics. Since linkers generally pull in symbols by object
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* files, keeping these symbols as the only symbols in this file
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* prevents utility programs such as "ompi_info" from having to import
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* entire components just to query their version and parameters.
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*/
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#include "orte_config.h"
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#include "orte/constants.h"
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#include "orte/types.h"
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#include <sys/types.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <signal.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#include "opal/mca/installdirs/installdirs.h"
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#include "opal/util/argv.h"
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#include "opal/util/opal_environ.h"
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#include "opal/util/path.h"
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#include "opal/util/basename.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "orte/util/show_help.h"
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#include "orte/util/name_fns.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/runtime/runtime.h"
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#include "orte/runtime/orte_wakeup.h"
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#include "orte/runtime/orte_wait.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/mca/rmaps/rmaps.h"
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#include "orte/mca/plm/plm.h"
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#include "orte/mca/plm/base/plm_private.h"
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#include "plm_slurm.h"
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/*
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* Local functions
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*/
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static int plm_slurm_init(void);
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static int plm_slurm_launch_job(orte_job_t *jdata);
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static int plm_slurm_terminate_job(orte_jobid_t jobid);
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static int plm_slurm_terminate_orteds(void);
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static int plm_slurm_signal_job(orte_jobid_t jobid, int32_t signal);
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static int plm_slurm_finalize(void);
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static int plm_slurm_start_proc(int argc, char **argv, char **env,
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char *prefix);
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/*
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* Global variable
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*/
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orte_plm_base_module_1_0_0_t orte_plm_slurm_module = {
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plm_slurm_init,
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orte_plm_base_set_hnp_name,
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plm_slurm_launch_job,
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NULL,
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plm_slurm_terminate_job,
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plm_slurm_terminate_orteds,
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plm_slurm_signal_job,
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plm_slurm_finalize
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};
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/*
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* Local variables
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*/
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static pid_t srun_pid = 0;
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static orte_jobid_t active_job = ORTE_JOBID_INVALID;
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static bool failed_launch;
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/**
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* Init the module
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*/
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static int plm_slurm_init(void)
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{
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int rc;
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if (ORTE_SUCCESS != (rc = orte_plm_base_comm_start())) {
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ORTE_ERROR_LOG(rc);
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}
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return rc;
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}
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/* When working in this function, ALWAYS jump to "cleanup" if
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* you encounter an error so that orterun will be woken up and
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* the job can cleanly terminate
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*/
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static int plm_slurm_launch_job(orte_job_t *jdata)
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{
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orte_app_context_t **apps;
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orte_node_t **nodes;
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orte_std_cntr_t n;
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orte_job_map_t *map;
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char *jobid_string = NULL;
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char *param;
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char **argv = NULL;
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int argc;
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int rc;
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char *tmp, **tmpv;
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char** env = NULL;
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char* var;
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char *nodelist_flat;
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char **nodelist_argv;
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int nodelist_argc;
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char *name_string;
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char **custom_strings;
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int num_args, i;
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char *cur_prefix;
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struct timeval launchstart, launchstop;
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int proc_vpid_index;
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orte_jobid_t failed_job;
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/* flag the daemons as failing by default */
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failed_job = ORTE_PROC_MY_NAME->jobid;
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if (orte_timing) {
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if (0 != gettimeofday(&launchstart, NULL)) {
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opal_output(0, "plm_slurm: could not obtain job start time");
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launchstart.tv_sec = 0;
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launchstart.tv_usec = 0;
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}
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}
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/* indicate the state of the launch */
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failed_launch = true;
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/* create a jobid for this job */
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if (ORTE_SUCCESS != (rc = orte_plm_base_create_jobid(&jdata->jobid))) {
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ORTE_ERROR_LOG(rc);
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goto cleanup;
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}
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: launching job %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_JOBID_PRINT(jdata->jobid)));
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/* setup the job */
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if (ORTE_SUCCESS != (rc = orte_plm_base_setup_job(jdata))) {
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ORTE_ERROR_LOG(rc);
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goto cleanup;
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}
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/* set the active jobid */
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active_job = jdata->jobid;
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/* Get the map for this job */
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if (NULL == (map = orte_rmaps.get_job_map(active_job))) {
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ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
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rc = ORTE_ERR_NOT_FOUND;
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goto cleanup;
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}
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apps = (orte_app_context_t**)jdata->apps->addr;
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nodes = (orte_node_t**)map->nodes->addr;
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if (0 == map->num_new_daemons) {
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/* no new daemons required - just launch apps */
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: no new daemons to launch",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
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goto launch_apps;
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}
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/* need integer value for command line parameter */
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asprintf(&jobid_string, "%lu", (unsigned long) jdata->jobid);
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/*
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* start building argv array
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*/
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argv = NULL;
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argc = 0;
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/*
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* SLURM srun OPTIONS
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*/
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/* add the srun command */
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opal_argv_append(&argc, &argv, "srun");
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/* Append user defined arguments to srun */
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if ( NULL != mca_plm_slurm_component.custom_args ) {
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custom_strings = opal_argv_split(mca_plm_slurm_component.custom_args, ' ');
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num_args = opal_argv_count(custom_strings);
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for (i = 0; i < num_args; ++i) {
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opal_argv_append(&argc, &argv, custom_strings[i]);
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}
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opal_argv_free(custom_strings);
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}
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asprintf(&tmp, "--nodes=%lu", (unsigned long) map->num_new_daemons);
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opal_argv_append(&argc, &argv, tmp);
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free(tmp);
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asprintf(&tmp, "--ntasks=%lu", (unsigned long) map->num_new_daemons);
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opal_argv_append(&argc, &argv, tmp);
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free(tmp);
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/* alert us if any orteds die during startup */
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opal_argv_append(&argc, &argv, "--kill-on-bad-exit");
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/* create nodelist */
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nodelist_argv = NULL;
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nodelist_argc = 0;
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for (n=0; n < map->num_nodes; n++ ) {
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/* if the daemon already exists on this node, then
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* don't include it
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*/
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if (nodes[n]->daemon_launched) {
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continue;
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}
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/* otherwise, add it to the list of nodes upon which
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* we need to launch a daemon
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*/
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opal_argv_append(&nodelist_argc, &nodelist_argv, nodes[n]->name);
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}
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if (0 == opal_argv_count(nodelist_argv)) {
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orte_show_help("help-plm-slurm.txt", "no-hosts-in-list", true);
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rc = ORTE_ERR_FAILED_TO_START;
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goto cleanup;
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}
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nodelist_flat = opal_argv_join(nodelist_argv, ',');
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opal_argv_free(nodelist_argv);
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asprintf(&tmp, "--nodelist=%s", nodelist_flat);
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opal_argv_append(&argc, &argv, tmp);
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free(tmp);
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OPAL_OUTPUT_VERBOSE((2, orte_plm_globals.output,
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"%s plm:slurm: launching on nodes %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), nodelist_flat));
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/*
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* ORTED OPTIONS
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*/
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/* add the daemon command (as specified by user) */
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tmpv = opal_argv_split(mca_plm_slurm_component.orted, ' ');
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for (i = 0; NULL != tmpv && NULL != tmpv[i]; ++i) {
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opal_argv_append(&argc, &argv, tmpv[i]);
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}
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opal_argv_free(tmpv);
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/* Add basic orted command line options, including debug flags */
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orte_plm_base_orted_append_basic_args(&argc, &argv,
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"slurm",
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&proc_vpid_index,
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NULL, false);
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/* tell the new daemons the base of the name list so they can compute
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* their own name on the other end
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*/
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rc = orte_util_convert_vpid_to_string(&name_string, map->daemon_vpid_start);
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if (ORTE_SUCCESS != rc) {
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opal_output(0, "plm_slurm: unable to get daemon vpid as string");
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goto cleanup;
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}
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free(argv[proc_vpid_index]);
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argv[proc_vpid_index] = strdup(name_string);
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free(name_string);
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if (0 < opal_output_get_verbosity(orte_plm_globals.output)) {
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param = opal_argv_join(argv, ' ');
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: final top-level argv:\n\t%s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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(NULL == param) ? "NULL" : param));
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if (NULL != param) free(param);
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}
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/* Copy the prefix-directory specified in the
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corresponding app_context. If there are multiple,
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different prefix's in the app context, complain (i.e., only
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allow one --prefix option for the entire slurm run -- we
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don't support different --prefix'es for different nodes in
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the SLURM plm) */
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cur_prefix = NULL;
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for (n=0; n < jdata->num_apps; n++) {
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char * app_prefix_dir = apps[n]->prefix_dir;
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/* Check for already set cur_prefix_dir -- if different,
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complain */
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if (NULL != app_prefix_dir) {
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if (NULL != cur_prefix &&
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0 != strcmp (cur_prefix, app_prefix_dir)) {
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orte_show_help("help-plm-slurm.txt", "multiple-prefixes",
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true, cur_prefix, app_prefix_dir);
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return ORTE_ERR_FATAL;
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}
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/* If not yet set, copy it; iff set, then it's the
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same anyway */
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if (NULL == cur_prefix) {
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cur_prefix = strdup(app_prefix_dir);
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: Set prefix:%s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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cur_prefix));
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}
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}
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}
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/* setup environment */
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env = opal_argv_copy(environ);
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/* add the nodelist */
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var = mca_base_param_environ_variable("orte", "slurm", "nodelist");
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opal_setenv(var, nodelist_flat, true, &env);
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free(nodelist_flat);
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free(var);
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/* exec the daemon(s) */
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if (ORTE_SUCCESS != (rc = plm_slurm_start_proc(argc, argv, env, cur_prefix))) {
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ORTE_ERROR_LOG(rc);
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goto cleanup;
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}
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/* do NOT wait for srun to complete. Srun only completes when the processes
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* it starts - in this case, the orteds - complete. Instead, we'll catch
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* any srun failures and deal with them elsewhere
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*/
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/* wait for daemons to callback */
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if (ORTE_SUCCESS != (rc = orte_plm_base_daemon_callback(map->num_new_daemons))) {
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: daemon launch failed for job %s on error %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_JOBID_PRINT(active_job), ORTE_ERROR_NAME(rc)));
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goto cleanup;
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}
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launch_apps:
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/* get here if daemons launch okay - any failures now by apps */
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failed_job = active_job;
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if (ORTE_SUCCESS != (rc = orte_plm_base_launch_apps(active_job))) {
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OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
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"%s plm:slurm: launch of apps failed for job %s on error %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_JOBID_PRINT(active_job), ORTE_ERROR_NAME(rc)));
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goto cleanup;
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}
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/* declare the launch a success */
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failed_launch = false;
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if (orte_timing) {
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if (0 != gettimeofday(&launchstop, NULL)) {
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opal_output(0, "plm_slurm: could not obtain stop time");
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} else {
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opal_output(0, "plm_slurm: total job launch time is %ld usec",
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(launchstop.tv_sec - launchstart.tv_sec)*1000000 +
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(launchstop.tv_usec - launchstart.tv_usec));
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}
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}
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if (ORTE_SUCCESS != rc) {
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opal_output(0, "plm:slurm: start_procs returned error %d", rc);
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goto cleanup;
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}
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cleanup:
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if (NULL != argv) {
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opal_argv_free(argv);
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}
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if (NULL != env) {
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opal_argv_free(env);
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}
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if(NULL != jobid_string) {
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free(jobid_string);
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}
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/* check for failed launch - if so, force terminate */
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if (failed_launch) {
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orte_plm_base_launch_failed(failed_job, -1, ORTE_ERROR_DEFAULT_EXIT_CODE, ORTE_JOB_STATE_FAILED_TO_START);
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}
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return rc;
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}
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static int plm_slurm_terminate_job(orte_jobid_t jobid)
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{
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int rc;
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/* order them to kill their local procs for this job */
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if (ORTE_SUCCESS != (rc = orte_plm_base_orted_kill_local_procs(jobid))) {
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ORTE_ERROR_LOG(rc);
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}
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return rc;
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}
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/**
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* Terminate the orteds for a given job
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*/
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static int plm_slurm_terminate_orteds(void)
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{
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int rc;
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/* deregister the waitpid callback to ensure we don't make it look like
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* srun failed when it didn't. Since the srun may have already completed,
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* do NOT ERROR_LOG any return code to avoid confusing, duplicate error
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* messages
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*/
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orte_wait_cb_cancel(srun_pid);
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/* tell them to die! */
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if (ORTE_SUCCESS != (rc = orte_plm_base_orted_exit())) {
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ORTE_ERROR_LOG(rc);
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}
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return rc;
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}
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/**
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* Signal all the processes in the child srun by sending the signal directly to it
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*/
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static int plm_slurm_signal_job(orte_jobid_t jobid, int32_t signal)
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{
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int rc = ORTE_SUCCESS;
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/* order them to pass this signal to their local procs */
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if (ORTE_SUCCESS != (rc = orte_plm_base_orted_signal_local_procs(jobid, signal))) {
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ORTE_ERROR_LOG(rc);
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}
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return rc;
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}
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static int plm_slurm_finalize(void)
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{
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int rc;
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/* cleanup any pending recvs */
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if (ORTE_SUCCESS != (rc = orte_plm_base_comm_stop())) {
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ORTE_ERROR_LOG(rc);
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}
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return ORTE_SUCCESS;
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}
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static void srun_wait_cb(pid_t pid, int status, void* cbdata){
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/* According to the SLURM folks, srun always returns the highest exit
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code of our remote processes. Thus, a non-zero exit status doesn't
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necessarily mean that srun failed - it could be that an orted returned
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|
a non-zero exit status. Of course, that means the orted failed(!), so
|
|
the end result is the same - the job didn't start.
|
|
|
|
As a result, we really can't do much with the exit status itself - it
|
|
could be something in errno (if srun itself failed), or it could be
|
|
something returned by an orted, or it could be something returned by
|
|
the OS (e.g., couldn't find the orted binary). Somebody is welcome
|
|
to sort out all the options and pretty-print a better error message. For
|
|
now, though, the only thing that really matters is that
|
|
srun failed. Report the error and make sure that orterun
|
|
wakes up - otherwise, do nothing!
|
|
|
|
Unfortunately, the pid returned here is the srun pid, not the pid of
|
|
the proc that actually died! So, to avoid confusion, just use -1 as the
|
|
pid so nobody thinks this is real
|
|
*/
|
|
|
|
if (0 != status) {
|
|
if (failed_launch) {
|
|
/* report that the daemon has failed so we can exit
|
|
*/
|
|
orte_plm_base_launch_failed(ORTE_PROC_MY_NAME->jobid, -1, status, ORTE_JOB_STATE_FAILED_TO_START);
|
|
|
|
} else {
|
|
/* an orted must have died unexpectedly after launch - report
|
|
* that the daemon has failed so we exit
|
|
*/
|
|
orte_plm_base_launch_failed(ORTE_PROC_MY_NAME->jobid, -1, status, ORTE_JOB_STATE_ABORTED);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
static int plm_slurm_start_proc(int argc, char **argv, char **env,
|
|
char *prefix)
|
|
{
|
|
int fd;
|
|
char *exec_argv = opal_path_findv(argv[0], 0, env, NULL);
|
|
|
|
if (NULL == exec_argv) {
|
|
return ORTE_ERR_NOT_FOUND;
|
|
}
|
|
|
|
srun_pid = fork();
|
|
if (-1 == srun_pid) {
|
|
ORTE_ERROR_LOG(ORTE_ERR_SYS_LIMITS_CHILDREN);
|
|
free(exec_argv);
|
|
return ORTE_ERR_SYS_LIMITS_CHILDREN;
|
|
}
|
|
|
|
if (0 == srun_pid) { /* child */
|
|
char *bin_base = NULL, *lib_base = NULL;
|
|
|
|
/* Figure out the basenames for the libdir and bindir. There
|
|
is a lengthy comment about this in plm_rsh_module.c
|
|
explaining all the rationale for how / why we're doing
|
|
this. */
|
|
|
|
lib_base = opal_basename(opal_install_dirs.libdir);
|
|
bin_base = opal_basename(opal_install_dirs.bindir);
|
|
|
|
/* If we have a prefix, then modify the PATH and
|
|
LD_LIBRARY_PATH environment variables. */
|
|
if (NULL != prefix) {
|
|
char *oldenv, *newenv;
|
|
|
|
/* Reset PATH */
|
|
oldenv = getenv("PATH");
|
|
if (NULL != oldenv) {
|
|
asprintf(&newenv, "%s/%s:%s", prefix, bin_base, oldenv);
|
|
} else {
|
|
asprintf(&newenv, "%s/%s", prefix, bin_base);
|
|
}
|
|
opal_setenv("PATH", newenv, true, &env);
|
|
OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
|
|
"%s plm:slurm: reset PATH: %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
newenv));
|
|
free(newenv);
|
|
|
|
/* Reset LD_LIBRARY_PATH */
|
|
oldenv = getenv("LD_LIBRARY_PATH");
|
|
if (NULL != oldenv) {
|
|
asprintf(&newenv, "%s/%s:%s", prefix, lib_base, oldenv);
|
|
} else {
|
|
asprintf(&newenv, "%s/%s", prefix, lib_base);
|
|
}
|
|
opal_setenv("LD_LIBRARY_PATH", newenv, true, &env);
|
|
OPAL_OUTPUT_VERBOSE((1, orte_plm_globals.output,
|
|
"%s plm:slurm: reset LD_LIBRARY_PATH: %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
newenv));
|
|
free(newenv);
|
|
}
|
|
|
|
fd = open("/dev/null", O_CREAT|O_WRONLY|O_TRUNC, 0666);
|
|
if(fd > 0) {
|
|
dup2(fd, 0);
|
|
}
|
|
|
|
/* When not in debug mode and --debug-daemons was not passed,
|
|
* tie stdout/stderr to dev null so we don't see messages from orted */
|
|
if (0 >= opal_output_get_verbosity(orte_plm_globals.output) &&
|
|
!orte_debug_daemons_flag) {
|
|
if (fd >= 0) {
|
|
if (fd != 1) {
|
|
dup2(fd,1);
|
|
}
|
|
if (fd != 2) {
|
|
dup2(fd,2);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (fd > 2) {
|
|
close(fd);
|
|
}
|
|
|
|
/* get the srun process out of orterun's process group so that
|
|
signals sent from the shell (like those resulting from
|
|
cntl-c) don't get sent to srun */
|
|
setpgid(0, 0);
|
|
|
|
execve(exec_argv, argv, env);
|
|
|
|
opal_output(0, "plm:slurm:start_proc: exec failed");
|
|
/* don't return - need to exit - returning would be bad -
|
|
we're not in the calling process anymore */
|
|
exit(1);
|
|
} else { /* parent */
|
|
/* just in case, make sure that the srun process is not in our
|
|
process group any more. Stevens says always do this on both
|
|
sides of the fork... */
|
|
setpgid(srun_pid, srun_pid);
|
|
|
|
/* setup the waitpid so we can find out if srun succeeds! */
|
|
orte_wait_cb(srun_pid, srun_wait_cb, NULL);
|
|
free(exec_argv);
|
|
}
|
|
|
|
return ORTE_SUCCESS;
|
|
}
|