/* -*- 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:
* 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 */
#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/show_help.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/ns/base/base.h"
#include "orte/mca/sds/base/base.h"
#include "orte/mca/oob/base/base.h"
#include "orte/mca/ras/base/base.h"
#include "orte/mca/rmgr/base/base.h"
#include "orte/mca/rmaps/base/base.h"
#include "orte/mca/rmaps/base/rmaps_base_map.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/soh/base/base.h"
#include "orte/runtime/orte_wait.h"
#include "orte/runtime/runtime.h"
#include "pls_bproc.h"
/**
* Our current evironment
*/
extern char **environ;
/**
* Initialization of the bproc module with all the needed function pointers
*/
orte_pls_base_module_t orte_pls_bproc_module = {
orte_pls_bproc_launch,
orte_pls_bproc_terminate_job,
orte_pls_bproc_terminate_proc,
orte_pls_bproc_finalize
};
static int orte_pls_bproc_node_array(orte_rmaps_base_map_t* map,
int ** node_array, int * node_array_len);
static int orte_pls_bproc_node_list(int * node_array, int node_array_len,
int ** node_list, 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_cellid_t cellid, char *** envp,
int ** node_arrays, int * node_array_lens,
int num_contexts, int num_procs,
orte_vpid_t global_vpid_start,
orte_jobid_t jobid);
static int orte_pls_bproc_launch_app(orte_cellid_t cellid, orte_jobid_t jobid,
orte_rmaps_base_map_t* map, int num_processes,
orte_vpid_t vpid_start,
orte_vpid_t global_vpid_start,
int app_context,
int * node_array, int node_array_len);
/**
* creates an array that is indexed by the node number and each entry contains the
* number of processes that will be launched on that node.
*
* @param map single context mapping
* @param node_array a pointer to put the node array into
* @param node_array_len returns the length of the array
* @retval >=0 the number of processes
* @retval <0 orte err
*/
static int orte_pls_bproc_node_array(orte_rmaps_base_map_t* map,
int ** node_array, int * node_array_len) {
opal_list_item_t* item;
int num_procs = 0;
int num_on_node;
*node_array_len = 0;
for(item = opal_list_get_first(&map->nodes);
item != opal_list_get_end(&map->nodes);
item = opal_list_get_next(item)) {
if(*node_array_len < atol(((orte_rmaps_base_node_t*)item)->node->node_name)) {
*node_array_len = atol(((orte_rmaps_base_node_t*)item)->node->node_name);
}
}
(*node_array_len)++;
/* build the node array */
*node_array = (int*)malloc(sizeof(int) * *node_array_len);
if(NULL == *node_array) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
memset(*node_array, 0, sizeof(int) * *node_array_len);
for(item = opal_list_get_first(&map->nodes);
item != opal_list_get_end(&map->nodes);
item = opal_list_get_next(item)) {
orte_rmaps_base_node_t* node = (orte_rmaps_base_node_t*)item;
num_on_node = opal_list_get_size(&node->node_procs);
(*node_array)[atol(node->node->node_name)] += num_on_node;
num_procs += num_on_node;
}
return num_procs;
}
/**
* Creates a bproc nodelist from a node array.
* @param node_array an array of bproc nodes that contains the number of processes
* to be launched on each node
* @param node_array_len the length of the node array
* @param node_list a pointer that the bproc node list will be returned in
* @param num_nodes a pointer to return the number of nodes in the node list
* @param num_procs the number of processes that a node must have to be on the
* node list
*/
static int orte_pls_bproc_node_list(int * node_array, int node_array_len,
int ** node_list, int * num_nodes,
int num_procs) {
int node;
*num_nodes = 0;
*node_list = (int*)malloc(sizeof(int) * node_array_len);
if(NULL == *node_list) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* build the node list */
for(node = 0; node < node_array_len; node++) {
if(node_array[node] >= num_procs) {
(*node_list)[(*num_nodes)++] = node;
}
}
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;
/* 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_base_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, "%stmp%sopenmpi-bproc-%s%s%s%s%s-%d%s%d",
orte_system_info.path_sep, orte_system_info.path_sep,
orte_system_info.user, orte_system_info.path_sep,
orte_universe_info.name, orte_system_info.path_sep, job,
app_context, orte_system_info.path_sep, 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%s%d", frontend, orte_system_info.path_sep, 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 decrements the number of currently
* running processes, and when this hits 0 it kills all the daemons
* @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;
/* set the state of this process */
if(WIFEXITED(status)) {
rc = orte_soh.set_proc_soh(proc, ORTE_PROC_STATE_TERMINATED, status);
} else {
rc = orte_soh.set_proc_soh(proc, ORTE_PROC_STATE_ABORTED, status);
}
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
}
free(proc);
OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock);
mca_pls_bproc_component.num_procs--;
if(0 < mca_pls_bproc_component.debug) {
opal_output(0, "in orte_pls_bproc_waitpid_cb, %d processes left\n",
mca_pls_bproc_component.num_procs);
}
OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock);
}
/**
* 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) {
if(!mca_pls_bproc_component.done_launching) {
/* 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 recieve 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(MCA_OOB_NAME_SELF, &ack, MCA_OOB_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;
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;
int rc;
int num_env;
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_ns.copy_process_name(&orte_process_info.ns_replica,
orte_process_info.my_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 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);
opal_unsetenv("HOSTNAME", env);
/* 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);
/* tell the bootproxy to use the bproc_orted pls */
var = mca_base_param_environ_variable("rmgr", "bootproxy", "pls");
opal_setenv(var, "bproc_orted", true, env);
free(var);
/* gpr replica contact info */
if(NULL == orte_process_info.gpr_replica) {
orte_ns.copy_process_name(&orte_process_info.gpr_replica,
orte_process_info.my_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);
/* merge in environment */
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);
}
/**
* 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_cellid_t cellid, char *** envp,
int ** node_arrays, int * node_array_lens,
int num_contexts, int num_procs,
orte_vpid_t global_vpid_start,
orte_jobid_t jobid) {
int * daemon_list = NULL;
int num_nodes = 0;
int num_daemons = 0;
int rc, i, j;
int * pids = NULL;
int argc;
char ** argv = NULL;
char * param;
char * orted_path;
orte_jobid_t daemon_jobid;
orte_process_name_t * proc_name;
orte_vpid_t daemon_vpid_start = 0;
size_t idx;
struct stat buf;
/* find the length of the longest node array */
for(i = 0; i < num_contexts; i++) {
if(node_array_lens[i] > num_nodes) {
num_nodes = node_array_lens[i];
}
}
if(NULL == (daemon_list = (int*)malloc(sizeof(int) * num_nodes))) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
/* create a list of all the nodes that need daemons, which is all the nodes
* that will have at least 1 process */
for(i = 0; i < num_nodes; i++) {
for(j = 0; j < num_contexts; j++) {
if(i < node_array_lens[j] && 0 < *(node_arrays[j] + i)) {
daemon_list[num_daemons++] = i;
break;
}
}
}
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_base_get_jobid(&daemon_jobid, orte_process_info.my_name);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = orte_ns.reserve_range(daemon_jobid, num_daemons, &daemon_vpid_start);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* set up the environment so the daemons can get their names once launched */
rc = orte_ns_nds_bproc_put(cellid, daemon_jobid, daemon_vpid_start,
global_vpid_start, num_procs, 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 (mca_pls_bproc_component.debug) {
opal_argv_append(&argc, &argv, "--debug");
opal_argv_append(&argc, &argv, "--debug-daemons");
}
opal_argv_append(&argc, &argv, "--bootproxy");
orte_ns.convert_jobid_to_string(¶m, jobid);
opal_argv_append(&argc, &argv, param);
free(param);
/* pass along the universe name and location info */
opal_argv_append(&argc, &argv, "--universe");
asprintf(¶m, "%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) {
asprintf(&orted_path, "%s/%s", ORTE_BINDIR,
mca_pls_bproc_component.orted);
if (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, ORTE_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 */
mca_pls_bproc_component.num_daemons = num_daemons;
rc = bproc_vexecmove(num_daemons, daemon_list, pids, orted_path, argv, *envp);
if(rc != num_daemons) {
opal_show_help("help-pls-bproc.txt", "daemon-launch-number", true,
num_daemons, rc, orted_path);
mca_pls_bproc_component.num_daemons = 0;
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 {
rc = orte_ns.create_process_name(&proc_name, cellid, daemon_jobid,
daemon_vpid_start + i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = orte_pointer_array_add(&idx, mca_pls_bproc_component.daemon_names,
proc_name);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (0 > asprintf(¶m, "%d", daemon_list[i])) {
rc = ORTE_ERR_OUT_OF_RESOURCE;
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
rc = orte_pls_base_set_node_pid(cellid, param, jobid, pids[i]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
free(param);
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;
}
}
}
cleanup:
if(NULL != argv) {
opal_argv_free(argv);
}
if(NULL != pids) {
free(pids);
}
if(NULL != orted_path) {
free(orted_path);
}
return rc;
}
/**
* 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_cellid_t cellid, orte_jobid_t jobid,
orte_rmaps_base_map_t* map, int num_processes,
orte_vpid_t vpid_start,
orte_vpid_t global_vpid_start,
int app_context, int * node_array,
int node_array_len) {
int * node_list = NULL;
int num_nodes;
int rc, i, j;
int * pids = NULL;
char * var, * param;
orte_process_name_t * proc_name;
struct bproc_io_t bproc_io[3];
if(NULL == (pids = (int*)malloc(sizeof(int) * node_array_len))) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
goto cleanup;
}
/* set out app context */
asprintf(¶m, "%d", app_context);
var = mca_base_param_environ_variable("pls", "bproc", "app_context");
opal_setenv(var, param, true, &map->app->env);
free(param);
free(var);
/* launch the processes */
i = 1;
rc = orte_pls_bproc_node_list(node_array, node_array_len, &node_list,
&num_nodes, i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
while(0 != num_nodes) {
/* setup environment so the procs can figure out their names */
rc = orte_ns_nds_bproc_put(cellid, jobid, vpid_start, global_vpid_start,
num_processes, &map->app->env);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = orte_pls_bproc_setup_io(jobid, 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);
}
rc = bproc_vexecmove_io(num_nodes, node_list, pids, bproc_io, 3,
map->app->app, map->app->argv, map->app->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->app->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_list[j], pids[j], errno, map->app->app);
rc = ORTE_ERROR;
ORTE_ERROR_LOG(rc);
goto cleanup;
} else {
mca_pls_bproc_component.num_procs++;
rc = orte_ns.create_process_name(&proc_name, cellid, jobid,
vpid_start + j);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
orte_pls_base_set_proc_pid(proc_name, pids[j]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = orte_wait_cb(pids[j], orte_pls_bproc_waitpid_cb, proc_name);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
free(node_list);
node_list = NULL;
i++;
vpid_start += num_nodes;
rc = orte_pls_bproc_node_list(node_array, node_array_len, &node_list,
&num_nodes, i);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
cleanup:
if(NULL != node_list) {
free(node_list);
}
if(NULL != pids) {
free(pids);
}
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) {
opal_list_item_t* item;
opal_list_t mapping;
orte_cellid_t cellid;
orte_rmaps_base_map_t* map;
orte_vpid_t vpid_launch;
orte_vpid_t vpid_range;
orte_vpid_t vpid_start;
int rc;
int src[4];
int ** node_array = NULL;
int * node_array_len = NULL;
int num_processes = 0;
int context = 0;
size_t idx, j;
/* query for the application context and allocated nodes */
OBJ_CONSTRUCT(&mapping, opal_list_t);
if(ORTE_SUCCESS != (rc = orte_rmaps_base_get_map(jobid, &mapping))) {
ORTE_ERROR_LOG(rc);
return rc;
}
if(ORTE_SUCCESS != (rc = orte_rmaps_base_get_vpid_range(jobid, &vpid_start,
&vpid_range))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* get the cellid */
rc = orte_ns_base_get_cellid(&cellid, orte_process_info.my_name);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* do a large lock so the processes will not decrement the process count
* until we are done launching */
OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock);
/* create an array to hold the pointers to the node arrays for each app
* context. Also, create an array to hold the lengths of the node arrays */
node_array = malloc(opal_list_get_size(&mapping) * sizeof(int *));
node_array_len = malloc(opal_list_get_size(&mapping) * sizeof(int *));
/* for each application context - create a node array and setup its env */
for(item = opal_list_get_first(&mapping);
item != opal_list_get_end(&mapping);
item = opal_list_get_next(item)) {
map = (orte_rmaps_base_map_t*)item;
rc = orte_pls_bproc_node_array(map, &node_array[context],
&node_array_len[context]);
if(0 > rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
orte_pls_bproc_setup_env(&map->app->env);
num_processes += rc;
context++;
}
/* launch the daemons on all the nodes which have processes assign to them */
rc = orte_pls_bproc_launch_daemons(cellid, &map->app->env, node_array,
node_array_len, context, num_processes,
vpid_start, jobid);
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(j = 0; j < mca_pls_bproc_component.num_daemons; j++) {
orte_buffer_t ack;
OBJ_CONSTRUCT(&ack, orte_buffer_t);
rc = mca_oob_recv_packed(MCA_OOB_NAME_ANY, &ack, MCA_OOB_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(jobid);
goto cleanup;
}
}
context = 0;
vpid_launch = vpid_start;
/* for each application context launch the app */
for(item = opal_list_get_first(&mapping);
item != opal_list_get_end(&mapping);
item = opal_list_get_next(item)) {
map = (orte_rmaps_base_map_t*)item;
rc = orte_pls_bproc_launch_app(cellid, jobid, map, num_processes,
vpid_launch, vpid_start, map->app->idx,
node_array[context], node_array_len[context]);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
free(node_array[context]);
context++;
vpid_launch = vpid_start + mca_pls_bproc_component.num_procs;
}
mca_pls_bproc_component.done_launching = true;
cleanup:
OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock);
while(NULL != (item = opal_list_remove_first(&mapping)))
OBJ_RELEASE(item);
if(NULL != node_array) {
free(node_array);
}
if(NULL != node_array_len) {
free(node_array_len);
}
OBJ_DESTRUCT(&mapping);
return rc;
}
/**
* Terminate all processes associated with this job - including
* daemons.
*/
int orte_pls_bproc_terminate_job(orte_jobid_t jobid) {
pid_t* pids;
size_t i, num_pids;
int rc;
/* kill application process */
if(ORTE_SUCCESS != (rc = orte_pls_base_get_proc_pids(jobid, &pids, &num_pids)))
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);
/* kill daemons */
if(ORTE_SUCCESS != (rc = orte_pls_base_get_node_pids(jobid, &pids, &num_pids)))
return rc;
for(i=0; i<num_pids; i++) {
if(mca_pls_bproc_component.debug) {
opal_output(0, "orte_pls_bproc: killing daemon: %d\n", pids[i]);
}
kill(pids[i], mca_pls_bproc_component.terminate_sig);
}
if(NULL != pids)
free(pids);
return ORTE_SUCCESS;
}
/**
* Terminate a specific process.
*/
int orte_pls_bproc_terminate_proc(const orte_process_name_t* proc_name) {
int rc;
pid_t pid;
if(ORTE_SUCCESS != (rc = orte_pls_base_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;
}
/**
* Module cleanup
*/
int orte_pls_bproc_finalize(void) {
return ORTE_SUCCESS;
}