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ports/openmpi
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openmpi/orte/mca/plm/bproc/plm_bproc.c

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46 KiB
C
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/* -*- 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 (c) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
/**
* @file:
* Part of the bproc launcher. See pls_bproc.h for an overview of how it works.
*/
#include "orte_config.h"
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif /* HAVE_SYS_TYPES_H */
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif /* HAVE_SYS_STAT_H */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <errno.h>
#include <signal.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif /* HAVE_FCNTL_H */
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "opal/mca/installdirs/installdirs.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_list.h"
#include "opal/event/event.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "opal/util/opal_environ.h"
#include "opal/util/path.h"
#include "opal/util/os_path.h"
#include "opal/util/show_help.h"
#include "opal/util/trace.h"
#include "orte/dss/dss.h"
#include "orte/util/sys_info.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/iof/iof.h"
#include "orte/mca/gpr/gpr.h"
#include "orte/mca/ns/ns.h"
#include "orte/mca/sds/base/base.h"
#include "orte/mca/oob/base/base.h"
#include "orte/mca/ras/ras.h"
#include "orte/mca/rmgr/rmgr.h"
#include "orte/mca/rmaps/rmaps.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/schema/schema_types.h"
#include "orte/mca/smr/smr.h"
#include "orte/runtime/orte_wait.h"
#include "orte/runtime/runtime.h"
#include "orte/runtime/params.h"
#include "orte/mca/pls/base/pls_private.h"
#include "pls_bproc.h"
static bool daemons_launched;
static bool bynode;
#if OMPI_HAVE_POSIX_THREADS && OMPI_THREADS_HAVE_DIFFERENT_PIDS
int orte_pls_bproc_launch_threaded(orte_jobid_t);
#endif
/**
* Initialization of the bproc module with all the needed function pointers
*/
orte_pls_base_module_t orte_pls_bproc_module = {
#if OMPI_HAVE_POSIX_THREADS && OMPI_THREADS_HAVE_DIFFERENT_PIDS
orte_pls_bproc_launch_threaded,
#else
orte_pls_bproc_launch,
#endif
orte_pls_bproc_terminate_job,
orte_pls_bproc_terminate_orteds,
orte_pls_bproc_terminate_proc,
orte_pls_bproc_signal_job,
orte_pls_bproc_signal_proc,
orte_pls_bproc_cancel_operation,
orte_pls_bproc_finalize
};
static int orte_pls_bproc_node_list(orte_job_map_t *map,
int *node_array, int * num_nodes,
int num_procs);
static int orte_pls_bproc_setup_io(orte_jobid_t jobid, struct bproc_io_t * io,
int node_rank, int app_context);
static void orte_pls_bproc_waitpid_cb(pid_t wpid, int status, void *data);
static void orte_pls_bproc_waitpid_daemon_cb(pid_t wpid, int status, void *data);
#ifdef MCA_pls_bproc_scyld
/* compatibility functions for scyld bproc and pre 3.2.0 LANL bproc */
static int bproc_vexecmove_io(int nnodes, int *nodes, int *pids,
struct bproc_io_t *io, int iolen, const char *cmd,
char * const argv[], char * envp[]);
static int bproc_vexecmove(int nnodes, int *nodes, int *pids, const char *cmd,
char * const argv[], char * envp[]);
#endif
static void orte_pls_bproc_setup_env(char *** env);
static int orte_pls_bproc_launch_daemons(orte_job_map_t *map, char ***envp);
static int orte_pls_bproc_launch_app(orte_job_map_t* map, int num_slots,
orte_vpid_t vpid_start, int app_context);
/**
* Creates a list of nodes from a job map that should participate in the next launch cycle.
* @param map a pointer to the job map
* @param node_array a pointer to an integer array that will contain the node names
* @param num_nodes a pointer to the place where we will store the number of nodes in the array
* @param num_procs the number of processes that a node must have to be placed on the list
*/
static int orte_pls_bproc_node_list(orte_job_map_t *map, int *node_array, int *num_nodes, int num_procs)
{
opal_list_item_t *item;
orte_mapped_node_t *node;
OPAL_TRACE(1);
/* initialize all */
*num_nodes = 0;
memset((void*)node_array, -1, sizeof(int) * map->num_nodes);
/* build the node list */
for(item = opal_list_get_first(&map->nodes);
item != opal_list_get_end(&map->nodes);
item = opal_list_get_next(item)) {
node = (orte_mapped_node_t*)item;
if (node->num_procs >= num_procs) {
node_array[(*num_nodes)++] = atoi(node->nodename);
}
}
return ORTE_SUCCESS;
}
/**
* Sets up the bproc io structs for the specified rank on the nodes
*
* @param jobid
* @param io A pointer to an array of 3 bproc_io_t structs
* @param node_rank the rank on the node we are setting up the structs for
* @param app_context the application context number
* @retval ORTE_SUCCESS
* @retval error
*/
static int orte_pls_bproc_setup_io(orte_jobid_t jobid, struct bproc_io_t * io,
int node_rank, int app_context) {
char *frontend = NULL, *path = NULL, *job = NULL;
int rc, i;
OPAL_TRACE(1);
/* ensure that system info is set */
orte_sys_info();
if (NULL == orte_system_info.user) { /* error condition */
return ORTE_ERROR;
}
if (NULL == orte_universe_info.name) { /* error condition */
return ORTE_ERROR;
}
rc = orte_ns.convert_jobid_to_string(&job, jobid);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* build the directory tree the io files will be in */
if (0 > asprintf(&frontend, OPAL_PATH_SEP"tmp"OPAL_PATH_SEP"openmpi-bproc-%s"OPAL_PATH_SEP"%s"OPAL_PATH_SEP"%s-%d"OPAL_PATH_SEP"%d",
orte_system_info.user, orte_universe_info.name, job,
app_context, node_rank)) {
rc = ORTE_ERR_OUT_OF_RESOURCE;
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
for(i = 0; i < 3; i++) {
if(0 > asprintf(&path, "%s"OPAL_PATH_SEP"%d", frontend, i)) {
rc = ORTE_ERR_OUT_OF_RESOURCE;
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
if (mca_pls_bproc_component.debug) {
opal_output(0, "mpirun bproc io setup. Path: %s\n", path);
}
io[i].fd = i;
io[i].type = BPROC_IO_FILE;
#if defined BPROC_API_VERSION && BPROC_API_VERSION >= 4
io[i].flags = 0;
#else
io[i].send_info = 0;
#endif
if(0 == i) {
io[i].d.file.flags = O_RDONLY;
} else {
io[i].d.file.flags = O_WRONLY;
}
io[i].d.file.offset = 0;
io[i].d.file.mode = 0;
strncpy(io[i].d.file.name, path, 256);
free(path);
}
cleanup:
if (NULL != frontend) {
free(frontend);
}
if (NULL != job) {
free(job);
}
return rc;
}
/**
* Callback for orte_wait_cb. This function ONLY gets called for
* normal termination, or termination caused by a signal. If the
* process abnormally terminates by other than a signal, we go through
* another function so it can tell us that it was abnormal.
* Bproc doesn't really let us do it through here.
* @param wpid the process's pid
* @param status tells why the process died
* @param data a pointer to the process's name
*/
static void orte_pls_bproc_waitpid_cb(pid_t wpid, int status, void *data) {
orte_process_name_t * proc = (orte_process_name_t*) data;
int rc;
OPAL_TRACE(1);
/* set the state of this process */
if(WIFEXITED(status)) {
rc = orte_smr.set_proc_state(proc, ORTE_PROC_STATE_TERMINATED, status);
} else {
rc = orte_smr.set_proc_state(proc, ORTE_PROC_STATE_ABORTED, status);
}
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
}
free(proc);
}
/**
* Callback for orte_wait_cb for the daemons. If a daemon unexpectedly dies
* before we are done launching, we abort the job.
* @param wpid the daemons's pid
* @param status tells why the daemon died
* @param data a pointer to the node the daemon was on
*/
static void orte_pls_bproc_waitpid_daemon_cb(pid_t wpid, int status, void *data) {
OPAL_TRACE(1);
if(!daemons_launched) {
/* if a daemon exits before we are done launching the user apps we send a
* message to ourself so we will break out of the receive loop and exit */
orte_buffer_t ack;
int rc;
int src[4] = {-1, -1};
src[2] = wpid;
src[3] = *(int*)data;
if(WIFSIGNALED(status)) {
src[1] = WTERMSIG(status);
}
OBJ_CONSTRUCT(&ack, orte_buffer_t);
rc = orte_dss.pack(&ack, &src, 4, ORTE_INT);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
}
rc = mca_oob_send_packed(ORTE_PROC_MY_NAME, &ack, ORTE_RML_TAG_BPROC, 0);
if(0 > rc) {
ORTE_ERROR_LOG(rc);
}
}
OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock);
if(0 < mca_pls_bproc_component.num_daemons) {
mca_pls_bproc_component.num_daemons--;
}
opal_condition_signal(&mca_pls_bproc_component.condition);
OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock);
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "in orte_pls_bproc_waitpid_daemon_cb, %d daemons left\n",
mca_pls_bproc_component.num_daemons);
}
}
#ifdef MCA_pls_bproc_scyld
/**
* compatibility function for scyld bproc and pre 3.2.0 LANL bproc. See the
* bproc documentation for details
*/
static int bproc_vexecmove_io(int nnodes, int *nodes, int *pids,
struct bproc_io_t *io, int iolen, const char *cmd,
char * const argv[], char * envp[]) {
int i;
char * rank;
OPAL_TRACE(1);
for(i = 0; i < nnodes; i++) {
pids[i] = fork();
if(0 == pids[i]) {
/* set BPROC_RANK so the proc can get its name */
if (0 > asprintf(&rank, "%d", i)) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
exit(-1);
}
opal_setenv("BPROC_RANK", rank, true, &envp);
bproc_execmove_io(nodes[i], io, iolen, cmd, argv, envp);
/* if we get here, there was an error */
opal_show_help("help-pls-bproc.txt", "bproc-vexecmove-launch", true,
cmd, nodes[i], errno);
ORTE_ERROR_LOG(ORTE_ERROR);
exit(-1);
} else if(-1 == pids[i]) {
opal_show_help("help-pls-bproc.txt", "bproc-vexecmove-fork", true,
errno);
ORTE_ERROR_LOG(ORTE_ERROR);
return -1;
}
}
return nnodes;
}
/**
* compatibility function for scyld bproc and pre 3.2.0 LANL bproc. See the
* bproc documentation for details
*/
static int bproc_vexecmove(int nnodes, int *nodes, int *pids, const char *cmd,
char * const argv[], char * envp[]) {
return bproc_vexecmove_io(nnodes, nodes, pids, NULL, 0, cmd, argv, envp);
}
#endif
/**
* Sets up the passed environment for processes launched by the bproc launcher.
* @param env a pointer to the environment to setup
*/
static void orte_pls_bproc_setup_env(char *** env)
{
char ** merged;
char * var;
char * param;
int rc;
int num_env;
OPAL_TRACE(1);
num_env = opal_argv_count(*env);
/* append mca parameters to our environment */
if(ORTE_SUCCESS != (rc = mca_base_param_build_env(env, &num_env, false))) {
ORTE_ERROR_LOG(rc);
}
/* ns replica contact info */
if(NULL == orte_process_info.ns_replica) {
orte_dss.copy((void**)&orte_process_info.ns_replica, orte_process_info.my_name, ORTE_NAME);
orte_process_info.ns_replica_uri = orte_rml.get_uri();
}
var = mca_base_param_environ_variable("ns","replica","uri");
opal_setenv(var,orte_process_info.ns_replica_uri, true, env);
free(var);
/* make sure the username used to create the bproc directory is the same on
* the backend as the frontend */
var = mca_base_param_environ_variable("pls","bproc","username");
opal_setenv(var, orte_system_info.user, true, env);
free(var);
/* gpr replica contact info */
if(NULL == orte_process_info.gpr_replica) {
orte_dss.copy((void**)&orte_process_info.gpr_replica, orte_process_info.my_name, ORTE_NAME);
orte_process_info.gpr_replica_uri = orte_rml.get_uri();
}
var = mca_base_param_environ_variable("gpr","replica","uri");
opal_setenv(var,orte_process_info.gpr_replica_uri, true, env);
free(var);
/* universe directory - needs to match orted */
var = mca_base_param_environ_variable("universe", NULL, NULL);
asprintf(&param, "%s@%s:%s", orte_universe_info.uid,
orte_universe_info.host, orte_universe_info.name);
opal_setenv(var, param, true, env);
free(param);
free(var);
/* merge in environment - merge ensures we don't overwrite anything we just set */
merged = opal_environ_merge(*env, environ);
opal_argv_free(*env);
*env = merged;
/* make sure hostname doesn't get pushed to backend node */
opal_unsetenv("HOSTNAME", env);
/* make sure the frontend hostname does not get pushed out to the backend */
var = mca_base_param_environ_variable("orte", "base", "nodename");
opal_unsetenv(var, env);
free(var);
}
/**
* Launches the daemons
* @param cellid the cellid of the job
* @param envp a pointer to the environment to use for the daemons
* @param node_arrays an array that holds the node arrays for each app context
* @param node_array_lens an array of lengths of the node arrays
* @param num_contexts the number of application contexts
* @param num_procs the numer of processes in the job
* @param global_vpid_start the starting vpid for the user's processes
* @param jobid the jobid for the user processes
* @retval ORTE_SUCCESS
* @retval error
*/
static int orte_pls_bproc_launch_daemons(orte_job_map_t *map, char ***envp) {
int * daemon_list = NULL;
int num_daemons = 0;
int rc, i;
int * pids = NULL;
int argc;
char ** argv = NULL;
char * param;
char * var;
int stride;
char * orted_path;
orte_vpid_t daemon_vpid_start;
orte_std_cntr_t idx;
struct stat buf;
opal_list_t daemons;
orte_pls_daemon_info_t *dmn;
opal_list_item_t *item;
struct timeval joblaunchstart, launchstart, launchstop;
OPAL_TRACE(1);
if (orte_pls_base.timing) {
if (0 != gettimeofday(&joblaunchstart, NULL)) {
opal_output(0, "pls_bproc: could not obtain start time");
}
}
/* indicate that the daemons have not completely launched yet */
daemons_launched = false;
/* setup a list that will contain the info for all the daemons
* so we can store it on the registry when done
*/
OBJ_CONSTRUCT(&daemons, opal_list_t);
/* get the number of nodes in this job and allocate an array for
* their names so we can pass that to bproc - populate the list
* with the node names
*/
num_daemons = map->num_nodes;
if (0 == num_daemons) {
/* nothing to do */
OBJ_DESTRUCT(&daemons);
return ORTE_SUCCESS;
}
if(NULL == (daemon_list = (int*)malloc(sizeof(int) * num_daemons))) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
i = 0;
for (item = opal_list_get_first(&map->nodes);
item != opal_list_get_end(&map->nodes);
item = opal_list_get_next(item)) {
orte_mapped_node_t *node = (orte_mapped_node_t*)item;
daemon_list[i++] = atoi(node->nodename);
}
/* allocate storage for bproc to return the daemon pids */
if(NULL == (pids = (int*)malloc(sizeof(int) * num_daemons))) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
/* allocate a range of vpids for the daemons */
rc = orte_ns.reserve_range(0, num_daemons, &daemon_vpid_start);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* setup the orted triggers for passing their launch info */
if (ORTE_SUCCESS != (rc = orte_smr.init_orted_stage_gates(map->job, num_daemons, NULL, NULL))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* setup the daemon environment */
orte_pls_bproc_setup_env(envp);
/* direct the daemons to drop contact files so the local procs
* can learn how to contact them - this is used for routing
* OOB messaging
*/
var = mca_base_param_environ_variable("odls","base","drop_contact_file");
opal_setenv(var,"1", true, envp);
free(var);
/* daemons calculate their process name using a "stride" of one, so
* push that value into their environment */
stride = 1;
asprintf(&param, "%ld", (long)stride);
var = mca_base_param_environ_variable("pls", "bproc", "stride");
opal_setenv(var, param, true, envp);
free(param);
free(var);
/* set up the base environment so the daemons can get their names once launched */
rc = orte_ns_nds_bproc_put(ORTE_PROC_MY_NAME->cellid, 0, daemon_vpid_start,
0, num_daemons, envp);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
argc = 0;
opal_argv_append(&argc, &argv, mca_pls_bproc_component.orted);
/* check for debug flags */
#if 0
if (mca_pls_bproc_component.debug) {
opal_argv_append(&argc, &argv, "--debug");
opal_argv_append(&argc, &argv, "--debug-daemons");
}
#endif
opal_argv_append(&argc, &argv, "--bootproxy");
orte_ns.convert_jobid_to_string(&param, map->job);
opal_argv_append(&argc, &argv, param);
free(param);
/* pass along the universe name and location info */
opal_argv_append(&argc, &argv, "--universe");
asprintf(&param, "%s@%s:%s", orte_universe_info.uid,
orte_universe_info.host, orte_universe_info.name);
opal_argv_append(&argc, &argv, param);
free(param);
/* tell orted not to demonize itself */
opal_argv_append(&argc, &argv, "--no-daemonize");
/* find orted */
if(0 == stat(mca_pls_bproc_component.orted, &buf)) {
orted_path = strdup(mca_pls_bproc_component.orted);
} else {
orted_path = opal_path_findv(mca_pls_bproc_component.orted, 0, environ, NULL);
if(NULL == orted_path) {
orted_path = opal_os_path( false, opal_install_dirs.bindir, mca_pls_bproc_component.orted, NULL );
if( (NULL != orted_path) || (0 != stat(orted_path, &buf)) ) {
char *path = getenv("PATH");
if (NULL == path) {
path = ("PATH is empty!");
}
opal_show_help("help-pls-bproc.txt", "no-orted", true,
mca_pls_bproc_component.orted,
mca_pls_bproc_component.orted, path, opal_install_dirs.bindir);
rc = ORTE_ERROR;
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "PLS_BPROC DEBUG: launching %d daemons. cmd: %s ",
num_daemons, orted_path);
}
/* launch the daemons */
if (orte_pls_base.timing) {
if (0 != gettimeofday(&launchstart, NULL)) {
opal_output(0, "pls_bproc: could not obtain start time");
}
}
if (mca_pls_bproc_component.do_not_launch) {
for (i=0; i < num_daemons; i++) pids[i] = i+1;
rc = num_daemons;
} else {
rc = bproc_vexecmove(num_daemons, daemon_list, pids, orted_path, argv, *envp);
}
if (orte_pls_base.timing) {
if (0 != gettimeofday(&launchstop, NULL)) {
opal_output(0, "pls_bproc: could not obtain stop time");
} else {
opal_output(0, "pls_bproc: daemon launch time is %ld usec",
(launchstop.tv_sec - launchstart.tv_sec)*1000000 +
(launchstop.tv_usec - launchstart.tv_usec));
}
}
if(rc != num_daemons) {
opal_show_help("help-pls-bproc.txt", "daemon-launch-number", true,
num_daemons, rc, orted_path);
rc = ORTE_ERROR;
goto cleanup;
}
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "PLS_BPROC DEBUG: %d daemons launched. First pid: %d\n",
rc, *pids);
}
for(i = 0; i < num_daemons; i++) {
if(0 >= pids[i]) {
opal_show_help("help-pls-bproc.txt", "daemon-launch-bad-pid", true,
daemon_list[i], pids[i], errno, orted_path);
rc = ORTE_ERROR;
ORTE_ERROR_LOG(rc);
goto cleanup;
} else {
if (0 > asprintf(&param, "%d", daemon_list[i])) {
rc = ORTE_ERR_OUT_OF_RESOURCE;
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
rc = orte_pls_bproc_set_node_pid(ORTE_PROC_MY_NAME->cellid, param, map->job, pids[i]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
dmn = OBJ_NEW(orte_pls_daemon_info_t);
rc = orte_ns.create_process_name(&(dmn->name), ORTE_PROC_MY_NAME->cellid, 0,
daemon_vpid_start + i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
dmn->cell = dmn->name->cellid;
dmn->nodename = strdup(param);
dmn->active_job = map->job;
opal_list_append(&daemons, &dmn->super);
free(param);
}
}
/* store the daemon info */
if (ORTE_SUCCESS != (rc = orte_pls_base_store_active_daemons(&daemons))) {
ORTE_ERROR_LOG(rc);
}
/* setup the callbacks - this needs to be done *after* we store the
* daemon info so that short-lived apps don't cause mpirun to
* try and terminate the orteds before we record them
*/
if (!mca_pls_bproc_component.do_not_launch) {
for (i=0; i < num_daemons; i++) {
rc = orte_wait_cb(pids[i], orte_pls_bproc_waitpid_daemon_cb,
&daemon_list[i]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
/* wait for communication back from the daemons, which indicates they have
* sucessfully set up the pty/pipes and IO forwarding which the user apps
* will use */
for(i = 0; i < num_daemons; i++) {
orte_buffer_t ack;
int src[4];
OBJ_CONSTRUCT(&ack, orte_buffer_t);
rc = mca_oob_recv_packed(ORTE_NAME_WILDCARD, &ack, ORTE_RML_TAG_BPROC);
if(0 > rc) {
ORTE_ERROR_LOG(rc);
OBJ_DESTRUCT(&ack);
goto cleanup;
}
idx = 4;
rc = orte_dss.unpack(&ack, &src, &idx, ORTE_INT);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
}
OBJ_DESTRUCT(&ack);
if(-1 == src[0]) {
/* one of the daemons has failed to properly launch. The error is sent
* by orte_pls_bproc_waitpid_daemon_cb */
if(-1 == src[1]) { /* did not die on a signal */
opal_show_help("help-pls-bproc.txt", "daemon-died-no-signal", true,
src[2], src[3]);
} else { /* died on a signal */
opal_show_help("help-pls-bproc.txt", "daemon-died-signal", true,
src[2], src[3], src[1]);
}
rc = ORTE_ERROR;
ORTE_ERROR_LOG(rc);
orte_pls_bproc_terminate_job(map->job, &orte_abort_timeout, NULL);
goto cleanup;
}
}
}
/* indicate that the daemons have now launched */
daemons_launched = true;
if (orte_pls_base.timing) {
if (0 != gettimeofday(&launchstop, NULL)) {
opal_output(0, "pls_bproc: could not obtain stop time");
} else {
opal_output(0, "pls_bproc: total job launch time is %ld usec",
(launchstop.tv_sec - joblaunchstart.tv_sec)*1000000 +
(launchstop.tv_usec - joblaunchstart.tv_usec));
}
}
cleanup:
if(NULL != argv) {
opal_argv_free(argv);
}
if(NULL != pids) {
free(pids);
}
if(NULL != orted_path) {
free(orted_path);
}
while (NULL != (item = opal_list_remove_first(&daemons))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&daemons);
return rc;
}
static int
orte_pls_bproc_node_failed(orte_gpr_notify_message_t *msg)
{
orte_jobid_t job;
/* respond to a node failure reported by the smr. We know that
* this function will only be called when one or more nodes in
* our allocation fails, so we just need to respond to it. The
* complication is that the failure could occur in any of several
* states:
* (a) before we start to launch the daemons
* (b) while we are launching the daemons
* (c) after the daemons are launched, while we are launching the app
* (d) during app launch
* (e) after app launch, but before completion
* (f) while the app is finalizing
* (g) while we are cleaning up after the app has finalized
*/
printf("mpirun has detected a dead node within the job and is terminating\n");
/* extract the jobid from the returned data */
orte_schema.extract_jobid_from_std_trigger_name(&job, msg->target);
/* terminate all jobs in the in the job family */
orte_pls_bproc_terminate_job(job, &orte_abort_timeout, NULL);
/* kill the daemons */
orte_pls_bproc_terminate_job(0, &orte_abort_timeout, NULL);
/* shouldn't ever get here.. */
exit(1);
}
/**
* Launches the application processes
* @param cellid the cellid of the job
* @param jobid the jobid of the job
* @param map a pointer to the mapping of this application
* @param num_processes the number of processes in this job
* @param vpid_start the starting vpid for this app context
* @param global_vpid_start the starting vpid for the user's processes
* @param app_context the application context number
* @param node_array the node array for this context
* @param node_array_len the length of the node array
* @retval ORTE_SUCCESS
* @retval error
*/
static int orte_pls_bproc_launch_app(orte_job_map_t* map, int num_slots,
orte_vpid_t vpid_start, int app_context) {
int *node_array, num_nodes, cycle;
int rc, i, j, stride;
orte_std_cntr_t num_processes;
int *pids = NULL;
char *var, *param;
orte_process_name_t * proc_name;
struct bproc_io_t bproc_io[3];
char **env;
int dbg;
OPAL_TRACE(1);
/* point to the env array for this app_context */
env = opal_argv_copy(map->apps[app_context]->env);
/* set up app context */
asprintf(&param, "%d", app_context);
var = mca_base_param_environ_variable("pls", "bproc", "app_context");
opal_setenv(var, param, true, &env);
free(param);
free(var);
/* set the app_context number into the environment for the attributes */
var = mca_base_param_environ_variable("orte","app","num");
asprintf(&param, "%ld", (long)app_context);
opal_setenv(var, param, true, &env);
free(param);
free(var);
/* set the vpid-to-vpid stride based on the mapping mode */
if (bynode) {
/* we are mapping by node, so we want to set the stride
* length (i.e., the step size between vpids that is used
* to compute the process name) to 1
*/
stride = 1;
} else {
/* we are mapping by slot, so we want to set the stride
* length (i.e., the step size between vpids that is used
* to compute the process name) to the number of slots
*/
stride = num_slots;
}
/* and push that value into the process' environment */
asprintf(&param, "%ld", (long)stride);
var = mca_base_param_environ_variable("pls", "bproc", "stride");
opal_setenv(var, param, true, &env);
free(param);
free(var);
/* set up the node_array to handle the launch */
node_array = (int*)malloc(map->num_nodes * sizeof(int));
if (NULL == node_array) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* initialize the cycle count. Computing the process name under Bproc
* is a complex matter when mapping by slot as Bproc's inherent
* methodology is to do everything by node. When mapping by slot, the
* first num_slots number of launch cycles all have a vpid_start that
* will differ by one - i.e., the processes on a given node will have
* vpids that differ by only one.
*
* However, when we oversubscribe, we enter into a cyclic arrangement.
* During each cycle, the above description of how names are assigned
* is accurate. However, each cycle (i.e., each collection of num_nodes
* processes that we launch) will have a vpid start that is offset by
* num_slots * num_nodes. We have to compensate for that here when we
* calculate and pass the vpid_start param so that the processes can
* correctly compute their name
*/
cycle = 1;
/* launch the processes */
i = 1;
num_processes = map->vpid_range;
rc = orte_pls_bproc_node_list(map, node_array, &num_nodes, i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
opal_output_verbose(1, orte_pls_base.pls_output,
"launching app %s", map->apps[app_context]->app);
while(0 != num_nodes) {
if (0 < mca_pls_bproc_component.debug) {
opal_output_verbose(1, orte_pls_base.pls_output,
"\tlaunching cycle %d", i);
for (dbg=0; dbg<num_nodes; dbg++) {
opal_output_verbose(1, orte_pls_base.pls_output,
"\t\tlaunching on node %d", node_array[dbg]);
}
}
/* setup environment so the procs can figure out their names */
rc = orte_ns_nds_bproc_put(ORTE_PROC_MY_NAME->cellid, map->job, vpid_start, map->vpid_start,
num_processes, &env);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = orte_pls_bproc_setup_io(map->job, bproc_io, i - 1, app_context);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "pls_bproc: launching %d processes:", num_nodes);
}
/* allocate space for bproc to return the pids */
pids = (int*)malloc(num_nodes * sizeof(int));
if (NULL == pids) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
rc = ORTE_ERR_OUT_OF_RESOURCE;
goto cleanup;
}
if (mca_pls_bproc_component.do_not_launch) {
for (j=0; j < num_nodes; j++) pids[j] = j+1;
rc = num_nodes;
} else {
rc = bproc_vexecmove_io(num_nodes, node_array, pids, bproc_io, 3,
map->apps[app_context]->app,
map->apps[app_context]->argv, env);
}
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "pls_bproc: %d processes launched. First pid: %d",
rc, *pids);
}
if(rc != num_nodes) {
opal_show_help("help-pls-bproc.txt", "proc-launch-number", true,
num_nodes, rc, map->apps[app_context]->app);
rc = ORTE_ERROR;
goto cleanup;
}
for(j = 0; j < num_nodes; j++) {
if(0 >= pids[j]) {
opal_show_help("help-pls-bproc.txt", "proc-launch-bad-pid", true,
node_array[j], pids[j], errno, map->apps[app_context]->app);
rc = ORTE_ERROR;
ORTE_ERROR_LOG(rc);
goto cleanup;
} else {
rc = orte_ns.create_process_name(&proc_name, ORTE_PROC_MY_NAME->cellid, map->job,
vpid_start + j*stride);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
orte_pls_bproc_set_proc_pid(proc_name, pids[j], node_array[j]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (!mca_pls_bproc_component.do_not_launch) {
rc = orte_wait_cb(pids[j], orte_pls_bproc_waitpid_cb, proc_name);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
}
free(pids);
pids = NULL;
i++;
if (bynode) {
/* we are mapping by node, so the vpid_start must increment by
* the number of nodes
*/
vpid_start += num_nodes;
} else {
/* we are mapping by slot. Here is where we need to check our
* cyclic condition - if we are at the end of a cycle, then
* we need to increment the vpid_start by num_slots*num_nodes.
* Otherwise, we just increment it by one.
*/
if (cycle == num_slots) {
/* end of cycle condition */
vpid_start += num_slots * num_nodes - 1;
cycle = 1;
} else {
vpid_start += 1;
cycle++;
}
}
rc = orte_pls_bproc_node_list(map, node_array, &num_nodes, i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
cleanup:
if(NULL != pids) {
free(pids);
}
free(node_array);
if (NULL != env) opal_argv_free(env);
return rc;
}
/**
* The main bproc launcher. See pls_bproc.h for a high level overview of how
* the bproc launching works.
* Here we:
* -# Launch the deamons on the backend nodes.
* -# The daemons setup files for io forwarding then connect back to us to
* tells us they are ready for the actual apps.
* -# Launch the apps on the backend nodes
*
* @param jobid the jobid of the job to launch
* @retval ORTE_SUCCESS
* @retval error
*/
int orte_pls_bproc_launch(orte_jobid_t jobid) {
orte_job_map_t* map;
orte_mapped_node_t *map_node;
orte_vpid_t vpid_launch;
int rc;
int num_slots;
int context;
int i;
char cwd_save[OMPI_PATH_MAX + 1];
orte_ras_node_t *ras_node;
char **daemon_env;
opal_list_t nodelist;
OPAL_TRACE(1);
/* make sure the pls_bproc receive function has been started */
if (ORTE_SUCCESS != (rc = orte_pls_bproc_comm_start())) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* save the current working directory */
if (NULL == getcwd(cwd_save, sizeof(cwd_save))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
cwd_save[sizeof(cwd_save) - 1] = '\0';
/* get the job map */
if(ORTE_SUCCESS != (rc = orte_rmaps.get_job_map(&map, jobid))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* set the mapping mode */
if (NULL != map->mapping_mode && 0 == strcmp("bynode", map->mapping_mode)) {
bynode = true;
} else {
bynode = false;
}
/* check all of the app_contexts for sanity */
for (i=0; i < map->num_apps; i++) {
/* Check that the cwd is sane. We have to chdir there in
to check the executable, because the executable could
have been specified as a relative path to the wdir */
rc = orte_rmgr.check_context_cwd(map->apps[i], true);
if (ORTE_SUCCESS != rc) {
goto cleanup;
}
/* Check that the app exists and is executable */
rc = orte_rmgr.check_context_app(map->apps[i]);
if (ORTE_SUCCESS != rc) {
goto cleanup;
}
/* Return to the original dir */
if (0 != chdir(cwd_save)) {
rc = ORTE_ERR_IN_ERRNO;
goto cleanup;
}
}
/* For Bproc, we need to know how many slots were allocated on each
* node so the spawned processes can computer their name. Only Bproc
* needs to do this, so we choose not to modify the mapped_node struct
* to hold this info - bproc can go get it.
*
* Since Bproc also requires that the slots allocated on each node
* be the same, we really only need to lookup a single node. So grab
* the data for the first node on the map
*
* RHC: Unfortunately, the user may have passed these nodes to us
* via a hostfile or -host argument. In that case, we cannot trust
* that the slots allocated on each node are the same - and we get
* erratic behavior if they don't. Until we can verify that Bproc
* now supports clusters with differing numbers of slots on each node,
* we have to protect the system by erroring out. So - even though this
* will slow down the launch on large clusters - we have to get the
* allocation and check to ensure that all the slots match
*/
OBJ_CONSTRUCT(&nodelist, opal_list_t);
if (ORTE_SUCCESS != (rc = orte_ras.node_query(&nodelist))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (NULL == (ras_node = (orte_ras_node_t*)opal_list_remove_first(&nodelist))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
rc = ORTE_ERR_NOT_FOUND;
goto cleanup;
}
num_slots = ras_node->node_slots;
OBJ_RELEASE(ras_node);
while (NULL != (ras_node = (orte_ras_node_t*)opal_list_remove_first(&nodelist))) {
if (num_slots != ras_node->node_slots) {
/* mismatch - error out */
opal_show_help("help-pls-bproc.txt", "mismatched-slots", true);
ORTE_ERROR_LOG(ORTE_ERR_NOT_SUPPORTED);
rc = ORTE_ERR_NOT_SUPPORTED;
goto cleanup;
}
OBJ_RELEASE(ras_node);
}
OBJ_DESTRUCT(&nodelist);
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "pls_bproc: --- starting to launch procs ---");
}
/* save the daemon environment */
daemon_env = opal_argv_copy(map->apps[0]->env);
/* for each application context, setup its env */
for(i=0; i < map->num_apps; i++) {
orte_pls_bproc_setup_env(&map->apps[i]->env);
}
/* tell the smr which nodes to monitor so we can be notified
when the node's state changes, useful for aborting when
a bproc node up and dies */
if (ORTE_SUCCESS != (rc = orte_smr.begin_monitoring(map, orte_pls_bproc_node_failed, NULL))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* launch the daemons on all nodes which have processes assigned to them */
rc = orte_pls_bproc_launch_daemons(map, &daemon_env);
opal_argv_free(daemon_env);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
vpid_launch = map->vpid_start;
/* for each application context launch the app */
for(context=0; context < map->num_apps; context++) {
rc = orte_rmgr.check_context_cwd(map->apps[context], true);
if (ORTE_SUCCESS != rc) {
goto cleanup;
}
rc = orte_pls_bproc_launch_app(map, num_slots, vpid_launch, context);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
vpid_launch += map->apps[context]->num_procs;
}
cleanup:
chdir(cwd_save);
OBJ_RELEASE(map);
if (mca_pls_bproc_component.do_not_launch) {
/* indicate that we failed to launch, but do so silently */
return ORTE_ERR_SILENT;
}
return rc;
}
/**
* Terminate all processes associated with this job */
int orte_pls_bproc_terminate_job(orte_jobid_t jobid, struct timeval *timeout, opal_list_t *attrs) {
pid_t* pids;
orte_std_cntr_t i, num_pids;
int rc;
OPAL_TRACE(1);
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "orte_pls_bproc: terminating job %ld", jobid);
}
/* kill application process */
if(ORTE_SUCCESS != (rc = orte_pls_bproc_get_proc_pids(jobid, &pids, &num_pids, attrs)))
return rc;
for(i=0; i<num_pids; i++) {
if(mca_pls_bproc_component.debug) {
opal_output(0, "orte_pls_bproc: killing proc: %d\n", pids[i]);
}
kill(pids[i], mca_pls_bproc_component.terminate_sig);
}
if(NULL != pids)
free(pids);
/* dont kill daemons - mpirun will do this for us */
return ORTE_SUCCESS;
}
/**
* Terminate the orteds for a given job
*/
int orte_pls_bproc_terminate_orteds(orte_jobid_t jobid, struct timeval *timeout, opal_list_t *attrs)
{
int rc;
opal_list_t daemons;
opal_list_item_t *item;
OPAL_TRACE(1);
/* construct the list of active daemons on this job */
OBJ_CONSTRUCT(&daemons, opal_list_t);
if (ORTE_SUCCESS != (rc = orte_pls_base_get_active_daemons(&daemons, jobid, attrs))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
/* now tell them to die! */
if (ORTE_SUCCESS != (rc = orte_pls_base_orted_exit(&daemons, timeout))) {
ORTE_ERROR_LOG(rc);
}
CLEANUP:
while (NULL != (item = opal_list_remove_first(&daemons))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&daemons);
return rc;
}
/**
* Terminate a specific process.
*/
int orte_pls_bproc_terminate_proc(const orte_process_name_t* proc_name) {
int rc;
pid_t pid;
OPAL_TRACE(1);
if(ORTE_SUCCESS != (rc = orte_pls_bproc_get_proc_pid(proc_name, &pid)))
return rc;
if(kill(pid, mca_pls_bproc_component.terminate_sig) != 0) {
switch(errno) {
case EINVAL:
return ORTE_ERR_BAD_PARAM;
case ESRCH:
return ORTE_ERR_NOT_FOUND;
case EPERM:
return ORTE_ERR_PERM;
default:
return ORTE_ERROR;
}
}
return ORTE_SUCCESS;
}
/**
* Signal all processes associated with this job
*/
int orte_pls_bproc_signal_job(orte_jobid_t jobid, int32_t signal, opal_list_t *attrs) {
pid_t* pids;
orte_std_cntr_t i, num_pids;
int rc;
OPAL_TRACE(1);
/* signal application process */
if(ORTE_SUCCESS != (rc = orte_pls_bproc_get_proc_pids(jobid, &pids, &num_pids, attrs)))
return rc;
for(i=0; i<num_pids; i++) {
if(mca_pls_bproc_component.debug) {
opal_output(0, "orte_pls_bproc: signaling proc: %d\n", pids[i]);
}
kill(pids[i], (int)signal);
}
if(NULL != pids)
free(pids);
/** dont signal daemons - this is strictly for signalling application processes */
return ORTE_SUCCESS;
}
/**
* Signal a specific process.
*/
int orte_pls_bproc_signal_proc(const orte_process_name_t* proc_name, int32_t signal) {
int rc;
pid_t pid;
OPAL_TRACE(1);
if(ORTE_SUCCESS != (rc = orte_pls_bproc_get_proc_pid(proc_name, &pid)))
return rc;
if(kill(pid, (int)signal) != 0) {
switch(errno) {
case EINVAL:
return ORTE_ERR_BAD_PARAM;
case ESRCH:
return ORTE_ERR_NOT_FOUND;
case EPERM:
return ORTE_ERR_PERM;
default:
return ORTE_ERROR;
}
}
return ORTE_SUCCESS;
}
/**
* Cancel an operation involving comm to an orted
*/
int orte_pls_bproc_cancel_operation(void)
{
int rc;
OPAL_TRACE(1);
if (ORTE_SUCCESS != (rc = orte_pls_base_orted_cancel_operation())) {
ORTE_ERROR_LOG(rc);
}
return rc;
}
/**
* Module cleanup
*/
int orte_pls_bproc_finalize(void)
{
return ORTE_SUCCESS;
}
/*
* Handle threading issues.
*/
#if OMPI_HAVE_POSIX_THREADS && OMPI_THREADS_HAVE_DIFFERENT_PIDS
struct orte_pls_bproc_stack_t {
opal_condition_t cond;
opal_mutex_t mutex;
bool complete;
orte_jobid_t jobid;
int rc;
};
typedef struct orte_pls_bproc_stack_t orte_pls_bproc_stack_t;
static void orte_pls_bproc_stack_construct(orte_pls_bproc_stack_t* stack)
{
OBJ_CONSTRUCT(&stack->mutex, opal_mutex_t);
OBJ_CONSTRUCT(&stack->cond, opal_condition_t);
stack->rc = 0;
stack->complete = false;
}
static void orte_pls_bproc_stack_destruct(orte_pls_bproc_stack_t* stack)
{
OBJ_DESTRUCT(&stack->mutex);
OBJ_DESTRUCT(&stack->cond);
}
static OBJ_CLASS_INSTANCE(
orte_pls_bproc_stack_t,
opal_object_t,
orte_pls_bproc_stack_construct,
orte_pls_bproc_stack_destruct);
static void orte_pls_bproc_launch_cb(int fd, short event, void* args)
{
orte_pls_bproc_stack_t *stack = (orte_pls_bproc_stack_t*)args;
stack->rc = orte_pls_bproc_launch(stack->jobid);
OPAL_THREAD_LOCK(&stack->mutex);
stack->complete = true;
opal_condition_signal(&stack->cond);
OPAL_THREAD_UNLOCK(&stack->mutex);
}
int orte_pls_bproc_launch_threaded(orte_jobid_t jobid)
{
struct timeval tv = { 0, 0 };
struct opal_event event;
struct orte_pls_bproc_stack_t stack;
OBJ_CONSTRUCT(&stack, orte_pls_bproc_stack_t);
stack.jobid = jobid;
opal_evtimer_set(&event, orte_pls_bproc_launch_cb, &stack);
opal_evtimer_add(&event, &tv);
OPAL_THREAD_LOCK(&stack.mutex);
while(stack.complete == false)
opal_condition_wait(&stack.cond, &stack.mutex);
OPAL_THREAD_UNLOCK(&stack.mutex);
OBJ_DESTRUCT(&stack);
return stack.rc;
}
#endif
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