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openmpi/orte/runtime/orte_universe_exists.c
Ralph Castain 18b2dca51c Bring in the code for routing xcast stage gate messages via the local orteds. This code is inactive unless you specifically request it via an mca param oob_xcast_mode (can be set to "linear" or "direct"). Direct mode is the old standard method where we send messages directly to each MPI process. Linear mode sends the xcast message via the orteds, with the HNP sending the message to each orted directly.
There is a binomial algorithm in the code (i.e., the HNP would send to a subset of the orteds, which then relay it on according to the typical log-2 algo), but that has a bug in it so the code won't let you select it even if you tried (and the mca param doesn't show, so you'd *really* have to try).

This also involved a slight change to the oob.xcast API, so propagated that as required.

Note: this has *only* been tested on rsh, SLURM, and Bproc environments (now that it has been transferred to the OMPI trunk, I'll need to re-test it [only done rsh so far]). It should work fine on any environment that uses the ORTE daemons - anywhere else, you are on your own... :-)

Also, correct a mistake where the orte_debug_flag was declared an int, but the mca param was set as a bool. Move the storage for that flag to the orte/runtime/params.c and orte/runtime/params.h files appropriately.

This commit was SVN r14475.
2007-04-23 18:41:04 +00:00

566 строки
19 KiB
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 Sun Microsystems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*
* Setup command line options for the Open MPI Run Time Environment
*/
#include "orte_config.h"
#include "orte/orte_constants.h"
#include <string.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/types.h>
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif /* HAVE_DIRENT_H */
#include "opal/util/output.h"
#include "opal/util/os_path.h"
#include "opal/util/os_dirpath.h"
#include "orte/util/univ_info.h"
#include "orte/util/sys_info.h"
#include "orte/util/proc_info.h"
#include "orte/util/session_dir.h"
#include "orte/util/universe_setup_file_io.h"
#include "orte/runtime/params.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/ns/ns.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/runtime/runtime.h"
static struct timeval ompi_rte_ping_wait = {2, 0};
int orte_universe_search(opal_list_t *universe_list, bool report_broken_files, bool remove_broken_files)
{
int ret, exit_status = ORTE_SUCCESS;
#ifndef __WINDOWS__
DIR *cur_dirp = NULL;
struct dirent * dir_entry;
#else
HANDLE hFind = INVALID_HANDLE_VALUE;
WIN32_FIND_DATA file_data;
#endif /* __WINDOWS__ */
char *univ_setup_filename = NULL;
char *fulldirpath = NULL;
char *prefix = NULL;
char *frontend = NULL;
char *frontend_abs = NULL;
/*
* Get the session directory
*/
if( ORTE_SUCCESS != (ret = orte_session_dir_get_name(&fulldirpath,
&prefix,
&frontend,
orte_system_info.user,
orte_system_info.nodename,
NULL, /* batch ID -- Not used */
NULL, /* Universe Name -- NONE */
NULL, /* jobid */
NULL /* vpid */
) ) ) {
exit_status = ret;
goto cleanup;
}
#if !defined(__WINDOWS__)
frontend_abs = opal_os_path(false, prefix, frontend, NULL);
/*
* Check to make sure we have access to this directory
*/
if( ORTE_SUCCESS != (ret = opal_os_dirpath_access(frontend_abs, 0) )) {
exit_status = ret;
goto cleanup;
}
/*
* Open up the base directory so we can get a listing
*/
if( NULL == (cur_dirp = opendir(frontend_abs)) ) {
exit_status = ORTE_ERROR;
goto cleanup;
}
/*
* For each directory/universe
*/
while( NULL != (dir_entry = readdir(cur_dirp)) ) {
orte_universe_t *univ = NULL;
/*
* Skip non-universe directories
*/
if( 0 == strncmp(dir_entry->d_name, ".", strlen(".")) ||
0 == strncmp(dir_entry->d_name, ".", strlen("..")) ) {
continue;
}
/*
* Read the setup file
*/
univ_setup_filename = opal_os_path( false, frontend_abs,
dir_entry->d_name, "universe-setup.txt", NULL );
univ = OBJ_NEW(orte_universe_t);
if(ORTE_SUCCESS != (ret = orte_read_universe_setup_file(univ_setup_filename, univ) ) ){
if (report_broken_files) {
printf("universe_search: Unable to read the file (%s)\n", univ_setup_filename);
exit_status = ret;
}
/*
* See if we want to remove any cases with broken
* universe-setup.txt files. If so, print out a message and
* remove the directory. This is used by the orte-clean
* routine.
*/
if (remove_broken_files) {
char *univ_directory;
univ_directory = opal_os_path(false, frontend_abs,
dir_entry->d_name, NULL);
printf("universe_search: Removing defunct directory (%s)\n", univ_directory);
opal_os_dirpath_destroy(univ_directory, true, NULL);
free(univ_directory);
}
OBJ_RELEASE(univ);
} else {
OBJ_RETAIN(univ);
opal_list_append(universe_list, &(univ->super));
}
}
#else
/*
* Open up the base directory so we can get a listing.
*
* On Windows if we want to parse the content of a directory the filename
* should end with the "*". Otherwise we will only open the directory
* structure (and not the content).
*/
frontend_abs = opal_os_path(false, prefix, frontend, "*", NULL);
hFind = FindFirstFile( frontend_abs, &file_data );
if( INVALID_HANDLE_VALUE == hFind ) {
exit_status = GetLastError();
exit_status = ORTE_ERR_NOT_FOUND;
goto cleanup;
}
/*
* For each directory/universe
*/
do {
orte_universe_t *univ = NULL;
/*
* Skip non-universe directories
*/
if( 0 == strncmp(file_data.cFileName, ".", strlen(".")) ||
0 == strncmp(file_data.cFileName, ".", strlen("..")) ) {
continue;
}
/*
* Read the setup file
*/
univ_setup_filename = opal_os_path( false, prefix, frontend,
file_data.cFileName, "universe-setup.txt", NULL);
univ = OBJ_NEW(orte_universe_t);
if(ORTE_SUCCESS != (ret = orte_read_universe_setup_file(univ_setup_filename, univ) ) ){
if (report_broken_files) {
printf("universe_search: Unable to read the file (%s)\n", univ_setup_filename);
exit_status = ret;
}
/*
* See if we want to remove any cases with broken
* universe-setup.txt files. If so, print out a message and
* remove the directory. This is used by the orte-clean
* routine.
*/
if (remove_broken_files) {
char *univ_directory;
univ_directory = opal_os_path(false, frontend_abs,
file_data.cFileName, NULL);
printf("universe_search: Removing defunct directory (%s)\n", univ_directory);
opal_os_dirpath_destroy(univ_directory, true, NULL);
free(univ_directory);
}
OBJ_RELEASE(univ);
} else {
OBJ_RETAIN(univ);
opal_list_append(universe_list, &(univ->super));
}
} while( 0 != FindNextFile( hFind, &file_data ) );
#endif /* !defined(__WINDOWS__) */
cleanup:
#ifndef __WINDOWS__
if( NULL != cur_dirp )
closedir(cur_dirp);
#else
FindClose(hFind);
#endif /* __WINDOWS__ */
if( NULL != univ_setup_filename)
free(univ_setup_filename);
if( NULL != fulldirpath)
free(fulldirpath);
if( NULL != prefix)
free(prefix);
if( NULL != frontend)
free(frontend);
if( NULL != frontend_abs)
free(frontend_abs);
return (opal_list_is_empty(universe_list) ? exit_status : ORTE_SUCCESS);
}
static int orte_universe_check_connect(orte_universe_t *uni)
{
if (!orte_universe_info.console) { /* if we aren't trying to connect a console */
if (!uni->persistence || /* if the target universe is not persistent... */
(0 == strncmp(uni->scope, "exclusive", strlen("exclusive")))) { /* ...or no connection allowed */
/* also need to check "local" and that we did not specify the exact
* matching universe name
*/
if (orte_debug_flag) {
opal_output(0, "connect_uni: connection not allowed");
}
/* NOTE: THIS IS NOT AN ERROR - DON'T ERROR_LOG IT */
return ORTE_ERR_NO_CONNECTION_ALLOWED;
}
}
if (orte_debug_flag) {
opal_output(0, "connect_uni: contact info to set: %s", uni->seed_uri);
}
/* ping to verify it's alive */
if (ORTE_SUCCESS != orte_rml.ping(uni->seed_uri, &ompi_rte_ping_wait)) {
if (orte_debug_flag) {
ORTE_ERROR_LOG(ORTE_ERR_CONNECTION_FAILED);
}
return ORTE_ERR_CONNECTION_FAILED;
}
return ORTE_SUCCESS;
}
int orte_universe_exists(orte_universe_t *univ)
{
char *contact_file;
opal_list_t universes;
opal_list_item_t *item;
orte_universe_t *uniptr;
int ret;
/* if the user didn't provide a name for our universe, then we have to check
* for other universe names we could join. It is virtually impossible for
* another universe to have our exact default universe name as they would
* have to have the same PID - and that would be bad in so many ways!
*/
if (orte_universe_info.default_name) {
/* if we just have the default name - i.e., no name was specified -
* then get a list of all universes known on the local system. All
* we can do here is just loop through the session directory tree
* for universes - we have no better discovery mechanism at this time
*/
OBJ_CONSTRUCT(&universes, opal_list_t);
if (ORTE_SUCCESS != (ret = orte_universe_search(&universes, false, false))) {
/* if nothing was found, that's okay - report anything else */
if (ORTE_ERR_NOT_FOUND != ret) {
ORTE_ERROR_LOG(ret);
}
return ret;
}
/* if the list is empty, then we can just return */
if (opal_list_is_empty(&universes)) return ORTE_ERR_NOT_FOUND;
/* we have no real criteria for picking one over the other, so
* we just loop through the returned objects and pick the first
* one that will support connection
*/
while (NULL != (item = opal_list_remove_first(&universes))) {
uniptr = (orte_universe_t*)item;
if (ORTE_SUCCESS == orte_universe_check_connect(uniptr)) {
univ->name = strdup(uniptr->name);
univ->host = strdup(uniptr->host);
univ->uid = strdup(uniptr->uid);
univ->persistence = uniptr->persistence;
univ->scope = strdup(uniptr->scope);
univ->seed_uri = strdup(uniptr->seed_uri);
univ->console_connected = uniptr->console_connected;
return ORTE_SUCCESS;
}
}
/* if we get here, then we did not success in connecting to
* anyone - report that situation
*/
return ORTE_ERR_NOT_FOUND;
}
/* if the user did provide a name, then see if we can join it */
/* check to see if local universe session directory already exists */
if (ORTE_SUCCESS != orte_session_dir(false,
orte_process_info.tmpdir_base,
orte_system_info.user,
orte_system_info.nodename,
NULL,
orte_universe_info.name,
NULL,
NULL)) { /* not found */
/* NOTE: NOT FINDING THE DIRECTORY IS NOT AN ERROR - DON'T ERROR_LOG IT */
return ORTE_ERR_NOT_FOUND;
}
/* check for "contact-info" file. if present, read it in. */
if (NULL == (contact_file = opal_os_path(false, orte_process_info.universe_session_dir,
"universe-setup.txt", NULL))) {
/* NOTE: NOT FINDING THE FILE IS NOT AN ERROR - DON'T ERROR_LOG IT */
return ORTE_ERR_NOT_FOUND;
}
if (ORTE_SUCCESS != (ret = orte_read_universe_setup_file(contact_file, univ))) {
/* NOTE: THIS IS NOT AN ERROR - DON'T ERROR_LOG IT */
free(contact_file);
return ret;
}
/* don't need this string any more - free it */
free(contact_file);
if (orte_debug_flag) {
opal_output(0, "connect_uni: contact info read");
}
return orte_universe_check_connect(univ);
}
void
orte_universe_clean_directories(char *my_universe, int verbose) {
char *session_dir = NULL;
#if !defined(__WINDOWS__)
DIR *cur_dirp = NULL;
struct dirent * dir_entry;
#else
HANDLE hFind = INVALID_HANDLE_VALUE;
WIN32_FIND_DATA file_data;
#endif /* __WINDOWS__ */
char *fulldirpath = NULL;
char *prefix = NULL;
char *frontend = NULL;
/*
* Compute the full pathname to the session directory.
*/
if (ORTE_SUCCESS != orte_session_dir_get_name(&fulldirpath,
&prefix,
&frontend,
orte_system_info.user,
orte_system_info.nodename,
NULL, /* batch ID -- Not used */
NULL, /* Universe Name -- NONE */
NULL, /* jobid */
NULL /* vpid */
)) {
goto cleanup;
}
#if !defined(__WINDOWS__)
session_dir = opal_os_path(false, prefix, frontend, NULL);
/*
* Free up the various strings as these are allocated within
* the previous function.
*/
if (NULL != fulldirpath) {
free(fulldirpath);
fulldirpath = NULL;
}
if (NULL != prefix) {
free(prefix);
prefix = NULL;
}
if (NULL != frontend) {
free(frontend);
frontend = NULL;
}
/*
* Check to make sure we have access to this directory
*/
if (ORTE_SUCCESS != opal_os_dirpath_access(session_dir, 0)) {
goto cleanup;
}
/*
* Open up the base directory so we can get a listing
*/
if (NULL == (cur_dirp = opendir(session_dir))) {
goto cleanup;
}
/*
* For each directory/universe
*/
while (NULL != (dir_entry = readdir(cur_dirp))) {
/*
* Skip non-universe directories
*/
if (0 == strncmp(dir_entry->d_name, ".", strlen(".")) ||
0 == strncmp(dir_entry->d_name, ".", strlen(".."))) {
continue;
}
/*
* Skip my own universe. Let normal cleanup take care of that.
*/
if ((0 == strcmp(dir_entry->d_name, my_universe)) &&
(strlen(dir_entry->d_name) == strlen(my_universe))) {
if (verbose) {
opal_output(0, "orte-clean: skipping ourselves, name=%s\n",
orte_universe_info.name);
}
continue;
}
if (ORTE_SUCCESS != orte_session_dir_get_name(&fulldirpath,
&prefix,
&frontend,
orte_system_info.user,
orte_system_info.nodename,
NULL, /* batch ID -- Not used */
dir_entry->d_name,
NULL, /* jobid */
NULL /* vpid */
)) {
continue;
}
if (verbose) {
opal_output(0, "orte-clean: removing directory %s\n", fulldirpath);
}
opal_os_dirpath_destroy(fulldirpath, true, NULL);
/*
* The orte_session_dir_get_name handles the freeing of the
* fulldirpath each time it is called. The prefix gets reused.
* So, there is no need to free them on each call.
*/
if (NULL != frontend) {
free(frontend);
}
}
#else
/*
* Open up the base directory so we can get a listing.
*
* On Windows if we want to parse the content of a directory the filename
* should end with the "*". Otherwise we will only open the directory
* structure (and not the content).
*/
frontend = opal_os_path(false, prefix, frontend, "*", NULL);
hFind = FindFirstFile (frontend, &file_data);
if (INVALID_HANDLE_VALUE == hFind) {
goto cleanup;
}
do {
/*
* Skip non-universe directories
*/
/* Skip . and .. */
if ((0 == strcmp(file_data.cFileName, ".")) ||
(0 == strcmp(file_data.cFileName, "..")) ) {
continue;
}
if ((0 == strcmp(file_data.cFileName, my_universe)) &&
(strlen(file_data.cFileName) == strlen(my_universe))) {
if (verbose) {
opal_output(0, "orte-clean: skipping ourseleves, name=%s\n",
orte_universe_info.name);
}
continue;
}
if (ORTE_SUCCESS != orte_session_dir_get_name(&fulldirpath,
&prefix,
&frontend,
orte_system_info.user,
orte_system_info.nodename,
NULL, /* batch ID -- Not used */
file_data.cFileName,
NULL, /* jobid */
NULL /* vpid */
)) {
continue;
}
if (verbose) {
opal_output(0, "orte-clean: removing directory %s\n", fulldirpath);
}
opal_os_dirpath_destroy(fulldirpath, true, NULL);
/*
* The orte_session_dir_get_name handles the freeing of the
* fulldirpath each time it is called. The prefix gets reused.
* So, there is no need to free them on each call.
*/
if (NULL != frontend)
free(frontend);
} while (0 != FindNextFile(hFind, &file_data));
#endif /* !defined(__WINDOWS__) */
#if !defined(__WINDOWS__)
if (NULL != cur_dirp) {
closedir(cur_dirp);
}
#else
FindClose(hFind);
#endif /* __WINDOWS__ */
if(NULL != fulldirpath) {
free(fulldirpath);
}
if(NULL != prefix) {
free(prefix);
}
/*
* If the session directory is empty, then remove that too
*/
opal_os_dirpath_destroy(session_dir, false, NULL);
free(session_dir);
cleanup:
return;
}