bool orte_ifislocal(const char *hostname)
{
int i;
/* see if it matches any of our known aliases */
if (NULL != orte_process_info.aliases) {
for (i=0; NULL != orte_process_info.aliases[i]; i++) {
if (0 == strcmp(hostname, orte_process_info.aliases[i])) {
return true;
}
}
}
/* okay, have to resolve the address - the opal_ifislocal
* function will not attempt to resolve the address if
* told not to do so */
if (opal_ifislocal(hostname)) {
/* add this to our known aliases */
opal_argv_append_nosize(&orte_process_info.aliases, hostname);
return true;
}
/* not me */
return false;
}
/* Parse the provided hostfile and filter the nodes that are
* on the input list, removing those that
* are not found in the hostfile
*/
int orte_util_filter_hostfile_nodes(opal_list_t *nodes,
char *hostfile,
bool remove)
{
opal_list_t newnodes, exclude;
opal_list_item_t *item1, *item2, *next, *item3;
orte_node_t *node_from_list, *node_from_file, *node_from_pool, *node3;
int rc = ORTE_SUCCESS;
char *cptr;
int num_empty, nodeidx;
bool want_all_empty = false;
opal_list_t keep;
bool found;
OPAL_OUTPUT_VERBOSE((1, orte_ras_base_framework.framework_output,
"%s hostfile: filtering nodes through hostfile %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), hostfile));
/* parse the hostfile and create local list of findings */
OBJ_CONSTRUCT(&newnodes, opal_list_t);
OBJ_CONSTRUCT(&exclude, opal_list_t);
if (ORTE_SUCCESS != (rc = hostfile_parse(hostfile, &newnodes, &exclude, false))) {
OBJ_DESTRUCT(&newnodes);
OBJ_DESTRUCT(&exclude);
return rc;
}
/* if the hostfile was empty, then treat it as a no-op filter */
if (0 == opal_list_get_size(&newnodes)) {
OBJ_DESTRUCT(&newnodes);
OBJ_DESTRUCT(&exclude);
/* indicate that the hostfile was empty */
return ORTE_ERR_TAKE_NEXT_OPTION;
}
/* remove from the list of newnodes those that are in the exclude list
* since we could have added duplicate names above due to the */
while (NULL != (item1 = opal_list_remove_first(&exclude))) {
node_from_file = (orte_node_t*)item1;
/* check for matches on nodes */
for (item2 = opal_list_get_first(&newnodes);
item2 != opal_list_get_end(&newnodes);
item2 = opal_list_get_next(item2)) {
orte_node_t *node = (orte_node_t*)item2;
if (0 == strcmp(node_from_file->name, node->name)) {
/* match - remove it */
opal_output(0, "HOST %s ON EXCLUDE LIST - REMOVING", node->name);
opal_list_remove_item(&newnodes, item2);
OBJ_RELEASE(item2);
break;
}
}
OBJ_RELEASE(item1);
}
/* now check our nodes and keep or mark those that match. We can
* destruct our hostfile list as we go since this won't be needed
*/
OBJ_CONSTRUCT(&keep, opal_list_t);
while (NULL != (item2 = opal_list_remove_first(&newnodes))) {
node_from_file = (orte_node_t*)item2;
next = opal_list_get_next(item2);
/* see if this is a relative node syntax */
if ('+' == node_from_file->name[0]) {
/* see if we specified empty nodes */
if ('e' == node_from_file->name[1] ||
'E' == node_from_file->name[1]) {
/* request for empty nodes - do they want
* all of them?
*/
if (NULL != (cptr = strchr(node_from_file->name, ':'))) {
/* the colon indicates a specific # are requested */
cptr++; /* step past : */
num_empty = strtol(cptr, NULL, 10);
} else {
/* want them all - set num_empty to max */
num_empty = INT_MAX;
want_all_empty = true;
}
/* search the list of nodes provided to us and find those
* that are empty
*/
item1 = opal_list_get_first(nodes);
while (0 < num_empty && item1 != opal_list_get_end(nodes)) {
node_from_list = (orte_node_t*)item1;
next = opal_list_get_next(item1); /* keep our place */
if (0 == node_from_list->slots_inuse) {
/* check to see if this node is explicitly called
* out later - if so, don't use it here
*/
for (item3 = opal_list_get_first(&newnodes);
item3 != opal_list_get_end(&newnodes);
item3 = opal_list_get_next(item3)) {
node3 = (orte_node_t*)item3;
if (0 == strcmp(node3->name, node_from_list->name)) {
/* match - don't use it */
goto skipnode;
}
}
if (remove) {
/* remove item from list */
opal_list_remove_item(nodes, item1);
/* xfer to keep list */
opal_list_append(&keep, item1);
} else {
/* mark as included */
node_from_list->mapped = true;
}
--num_empty;
}
skipnode:
item1 = next;
}
/* did they get everything they wanted? */
if (!want_all_empty && 0 < num_empty) {
orte_show_help("help-hostfile.txt", "hostfile:not-enough-empty",
true, num_empty);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
} else if ('n' == node_from_file->name[1] ||
'N' == node_from_file->name[1]) {
/* they want a specific relative node #, so
* look it up on global pool
*/
nodeidx = strtol(&node_from_file->name[2], NULL, 10);
if (NULL == (node_from_pool = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, nodeidx))) {
/* this is an error */
orte_show_help("help-hostfile.txt", "hostfile:relative-node-not-found",
true, nodeidx, node_from_file->name);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
/* search the list of nodes provided to us and find it */
for (item1 = opal_list_get_first(nodes);
item1 != opal_list_get_end(nodes);
item1 = opal_list_get_next(nodes)) {
node_from_list = (orte_node_t*)item1;
if (0 == strcmp(node_from_list->name, node_from_pool->name)) {
if (remove) {
/* match - remove item from list */
opal_list_remove_item(nodes, item1);
/* xfer to keep list */
opal_list_append(&keep, item1);
} else {
/* mark as included */
node_from_list->mapped = true;
}
break;
}
}
} else {
/* invalid relative node syntax */
orte_show_help("help-hostfile.txt", "hostfile:invalid-relative-node-syntax",
true, node_from_file->name);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
} else {
/* we are looking for a specific node on the list
* search the provided list of nodes to see if this
* one is found
*/
found = false;
for (item1 = opal_list_get_first(nodes);
item1 != opal_list_get_end(nodes);
item1 = opal_list_get_next(item1)) {
node_from_list = (orte_node_t*)item1;
/* since the name in the hostfile might not match
* our local name, and yet still be intended to match,
* we have to check for local interfaces
*/
if (0 == strcmp(node_from_file->name, node_from_list->name) ||
(0 == strcmp(node_from_file->name, "localhost") &&
0 == strcmp(node_from_list->name, orte_process_info.nodename)) ||
(opal_ifislocal(node_from_list->name) &&
opal_ifislocal(node_from_file->name))) {
/* if the slot count here is less than the
* total slots avail on this node, set it
* to the specified count - this allows people
* to subdivide an allocation
*/
if (node_from_file->slots < node_from_list->slots) {
node_from_list->slots = node_from_file->slots;
}
if (remove) {
/* remove the node from the list */
opal_list_remove_item(nodes, item1);
/* xfer it to keep list */
opal_list_append(&keep, item1);
} else {
/* mark as included */
node_from_list->mapped = true;
}
found = true;
break;
}
}
/* if the host in the newnode list wasn't found,
* then that is an error we need to report to the
* user and abort
*/
if (!found) {
orte_show_help("help-hostfile.txt", "hostfile:extra-node-not-found",
true, hostfile, node_from_file->name);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
}
/* cleanup the newnode list */
OBJ_RELEASE(item2);
}
/* if we still have entries on our hostfile list, then
* there were requested hosts that were not in our allocation.
* This is an error - report it to the user and return an error
*/
if (0 != opal_list_get_size(&newnodes)) {
orte_show_help("help-hostfile.txt", "not-all-mapped-alloc",
true, hostfile);
while (NULL != (item1 = opal_list_remove_first(&newnodes))) {
OBJ_RELEASE(item1);
}
OBJ_DESTRUCT(&newnodes);
return ORTE_ERR_SILENT;
}
if (!remove) {
/* all done */
OBJ_DESTRUCT(&newnodes);
return ORTE_SUCCESS;
}
/* clear the rest of the nodes list */
while (NULL != (item1 = opal_list_remove_first(nodes))) {
OBJ_RELEASE(item1);
}
/* the nodes list has been cleared - rebuild it in order */
while (NULL != (item1 = opal_list_remove_first(&keep))) {
opal_list_append(nodes, item1);
}
cleanup:
OBJ_DESTRUCT(&newnodes);
return rc;
}
static int hostfile_parse_line(int token, opal_list_t* updates, opal_list_t* exclude, bool keep_all)
{
int rc;
orte_node_t* node;
bool got_count = false;
bool got_max = false;
char* value;
char** argv;
char* node_name = NULL;
char* node_alias = NULL;
char* username = NULL;
int cnt;
int number_of_slots = 0;
char buff[64];
if (ORTE_HOSTFILE_STRING == token ||
ORTE_HOSTFILE_HOSTNAME == token ||
ORTE_HOSTFILE_INT == token ||
ORTE_HOSTFILE_IPV4 == token ||
ORTE_HOSTFILE_IPV6 == token) {
if(ORTE_HOSTFILE_INT == token) {
snprintf(buff, 64, "%d", orte_util_hostfile_value.ival);
value = buff;
} else {
value = orte_util_hostfile_value.sval;
}
argv = opal_argv_split (value, '@');
cnt = opal_argv_count (argv);
if (1 == cnt) {
node_name = strdup(argv[0]);
} else if (2 == cnt) {
username = strdup(argv[0]);
node_name = strdup(argv[1]);
} else {
opal_output(0, "WARNING: Unhandled user@host-combination\n"); /* XXX */
}
opal_argv_free (argv);
/* if the first letter of the name is '^', then this is a node
* to be excluded. Remove the ^ character so the nodename is
* usable, and put it on the exclude list
*/
if ('^' == node_name[0]) {
int i, len;
len = strlen(node_name);
for (i=1; i < len; i++) {
node_name[i-1] = node_name[i];
}
node_name[len-1] = '\0'; /* truncate */
OPAL_OUTPUT_VERBOSE((3, orte_ras_base_framework.framework_output,
"%s hostfile: node %s is being excluded",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), node_name));
/* convert this into something globally unique */
if (strcmp(node_name, "localhost") == 0 || opal_ifislocal(node_name)) {
/* Nodename has been allocated, that is for sure */
if (orte_show_resolved_nodenames &&
0 != strcmp(node_name, orte_process_info.nodename)) {
node_alias = strdup(node_name);
}
free (node_name);
node_name = strdup(orte_process_info.nodename);
}
/* Do we need to make a new node object? First check to see
if it's already in the exclude list */
if (NULL == (node = hostfile_lookup(exclude, node_name))) {
node = OBJ_NEW(orte_node_t);
node->name = node_name;
if (NULL != username) {
node->username = strdup(username);
}
}
/* Note that we need to add this back to the exclude list.
If it was found, we just removed it (in hostfile_lookup()),
so this puts it back. If it was not found, then we have to
add it to the exclude list anyway. */
opal_list_append(exclude, &node->super);
return ORTE_SUCCESS;
}
/* this is not a node to be excluded, so we need to process it and
* add it to the "include" list. See if this host is actually us.
*/
if (strcmp(node_name, "localhost") == 0 || opal_ifislocal(node_name)) {
/* Nodename has been allocated, that is for sure */
if (orte_show_resolved_nodenames &&
0 != strcmp(node_name, orte_process_info.nodename)) {
node_alias = strdup(node_name);
}
free (node_name);
node_name = strdup(orte_process_info.nodename);
}
OPAL_OUTPUT_VERBOSE((3, orte_ras_base_framework.framework_output,
"%s hostfile: node %s is being included - keep all is %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), node_name,
keep_all ? "TRUE" : "FALSE"));
/* Do we need to make a new node object? First check to see
* if we are keeping everything or if it's already in the updates
* list. Because we check keep_all first, if that is set we will
* not do the hostfile_lookup call, and thus won't remove the
* pre-existing node from the updates list
*/
if (keep_all || NULL == (node = hostfile_lookup(updates, node_name))) {
node = OBJ_NEW(orte_node_t);
node->name = node_name;
if (NULL != username) {
node->username = strdup(username);
}
}
/* do we need to record an alias for this node? */
if (NULL != node_alias) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&node->alias, node_alias, false);
free(node_alias);
}
} else if (ORTE_HOSTFILE_RELATIVE == token) {
/* store this for later processing */
node = OBJ_NEW(orte_node_t);
node->name = strdup(orte_util_hostfile_value.sval);
if (NULL != username) {
node->username = strdup(username);
}
} else if (ORTE_HOSTFILE_RANK == token) {
/* we can ignore the rank, but we need to extract the node name. we
* first need to shift over to the other side of the equal sign as
* this is where the node name will be
*/
while (!orte_util_hostfile_done &&
ORTE_HOSTFILE_EQUAL != token) {
token = orte_util_hostfile_lex();
}
if (orte_util_hostfile_done) {
/* bad syntax somewhere */
return ORTE_ERROR;
}
/* next position should be the node name */
token = orte_util_hostfile_lex();
if(ORTE_HOSTFILE_INT == token) {
snprintf(buff, 64, "%d", orte_util_hostfile_value.ival);
value = buff;
} else {
value = orte_util_hostfile_value.sval;
}
argv = opal_argv_split (value, '@');
cnt = opal_argv_count (argv);
if (1 == cnt) {
node_name = strdup(argv[0]);
} else if (2 == cnt) {
username = strdup(argv[0]);
node_name = strdup(argv[1]);
} else {
opal_output(0, "WARNING: Unhandled user@host-combination\n"); /* XXX */
}
opal_argv_free (argv);
/* Do we need to make a new node object? First check to see
* if we are keeping everything or if it's already in the updates
* list. Because we check keep_all first, if that is set we will
* not do the hostfile_lookup call, and thus won't remove the
* pre-existing node from the updates list
*/
if (keep_all || NULL == (node = hostfile_lookup(updates, node_name))) {
node = OBJ_NEW(orte_node_t);
node->name = node_name;
if (NULL != username) {
node->username = strdup(username);
}
}
/* add a slot */
node->slots++;
/* do we need to record an alias for this node? */
if (NULL != node_alias) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&node->alias, node_alias, false);
free(node_alias);
}
/* skip to end of line */
while (!orte_util_hostfile_done &&
ORTE_HOSTFILE_NEWLINE != token) {
token = orte_util_hostfile_lex();
}
opal_list_append(updates, &node->super);
return ORTE_SUCCESS;
} else {
hostfile_parse_error(token);
return ORTE_ERROR;
}
got_count = false;
while (!orte_util_hostfile_done) {
token = orte_util_hostfile_lex();
switch (token) {
case ORTE_HOSTFILE_DONE:
goto done;
case ORTE_HOSTFILE_NEWLINE:
goto done;
case ORTE_HOSTFILE_USERNAME:
node->username = hostfile_parse_string();
break;
case ORTE_HOSTFILE_COUNT:
case ORTE_HOSTFILE_CPU:
case ORTE_HOSTFILE_SLOTS:
rc = hostfile_parse_int();
if (rc < 0) {
orte_show_help("help-hostfile.txt", "slots",
true,
cur_hostfile_name, rc);
OBJ_RELEASE(node);
return ORTE_ERROR;
}
node->slots += rc;
got_count = true;
/* Ensure that slots_max >= slots */
if (node->slots_max != 0 && node->slots_max < node->slots) {
node->slots_max = node->slots;
}
break;
case ORTE_HOSTFILE_SLOTS_MAX:
rc = hostfile_parse_int();
if (rc < 0) {
orte_show_help("help-hostfile.txt", "max_slots",
true,
cur_hostfile_name, ((size_t) rc));
OBJ_RELEASE(node);
return ORTE_ERROR;
}
/* Only take this update if it puts us >= node_slots */
if (rc >= node->slots) {
if (node->slots_max != rc) {
node->slots_max = rc;
got_max = true;
}
} else {
orte_show_help("help-hostfile.txt", "max_slots_lt",
true,
cur_hostfile_name, node->slots, rc);
ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
OBJ_RELEASE(node);
return ORTE_ERROR;
}
break;
default:
hostfile_parse_error(token);
OBJ_RELEASE(node);
return ORTE_ERROR;
}
if (number_of_slots > node->slots) {
ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
OBJ_RELEASE(node);
return ORTE_ERROR;
}
}
done:
if (got_count) {
node->slots_given = true;
} else if (got_max) {
node->slots = node->slots_max;
node->slots_given = true;
} else {
/* should be set by obj_new, but just to be clear */
node->slots_given = false;
/* if we weren't give a count or a max, then
* just increment by one to support RMs that
* count slots by listing the node multiple
* times in the file
*/
++node->slots;
}
opal_list_append(updates, &node->super);
return ORTE_SUCCESS;
}
/*
* Query the registry for all nodes allocated to a specified app_context
*/
int orte_rmaps_base_get_target_nodes(opal_list_t *allocated_nodes, orte_std_cntr_t *total_num_slots,
orte_app_context_t *app, orte_mapping_policy_t policy)
{
opal_list_item_t *item, *next;
orte_node_t *node;
orte_std_cntr_t num_slots;
orte_std_cntr_t i;
int rc;
/** set default answer */
*total_num_slots = 0;
/* if the hnp was allocated, include it unless flagged not to */
if (orte_hnp_is_allocated) {
if (NULL != (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, 0))) {
if (ORTE_NODE_STATE_DO_NOT_USE == node->state) {
/* clear this for future use, but don't include it */
node->state = ORTE_NODE_STATE_UP;
} else if (ORTE_NODE_STATE_NOT_INCLUDED != node->state) {
OBJ_RETAIN(node);
opal_list_append(allocated_nodes, &node->super);
}
}
}
/* add everything in the node pool that can be used */
for (i=1; i < orte_node_pool->size; i++) {
if (NULL != (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, i))) {
/* ignore nodes that are marked as do-not-use for this mapping */
if (ORTE_NODE_STATE_DO_NOT_USE == node->state) {
/* reset the state so it can be used another time */
node->state = ORTE_NODE_STATE_UP;
continue;
}
if (ORTE_NODE_STATE_DOWN == node->state) {
continue;
}
if (ORTE_NODE_STATE_NOT_INCLUDED == node->state) {
/* not to be used */
continue;
}
/* retain a copy for our use in case the item gets
* destructed along the way
*/
OBJ_RETAIN(node);
opal_list_append(allocated_nodes, &node->super);
}
}
/** check that anything is here */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
/* is there a default hostfile? */
if (NULL != orte_default_hostfile) {
/* yes - filter the node list through the file, removing
* any nodes not in the file -or- excluded via ^
*/
if (ORTE_SUCCESS != (rc = orte_util_filter_hostfile_nodes(allocated_nodes,
orte_default_hostfile))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/** check that anything is here */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
}
/* did the app_context contain a hostfile? */
if (NULL != app && NULL != app->hostfile) {
/* yes - filter the node list through the file, removing
* any nodes not found in the file
*/
if (ORTE_SUCCESS != (rc = orte_util_filter_hostfile_nodes(allocated_nodes,
app->hostfile))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/** check that anything is here */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:no-mapped-node",
true, app->app, app->hostfile);
return ORTE_ERR_SILENT;
}
}
/* did the app_context contain an add-hostfile? */
if (NULL != app && NULL != app->add_hostfile) {
/* yes - filter the node list through the file, removing
* any nodes not found in the file
*/
if (ORTE_SUCCESS != (rc = orte_util_filter_hostfile_nodes(allocated_nodes,
app->add_hostfile))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/** check that anything is here */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:no-mapped-node",
true, app->app, app->hostfile);
return ORTE_ERR_SILENT;
}
}
/* now filter the list through any -host specification */
if (NULL != app && NULL != app->dash_host) {
if (ORTE_SUCCESS != (rc = orte_util_filter_dash_host_nodes(allocated_nodes,
app->dash_host))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/** check that anything is left! */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:no-mapped-node",
true, app->app, "");
return ORTE_ERR_SILENT;
}
}
/* now filter the list through any add-host specification */
if (NULL != app && NULL != app->add_host) {
if (ORTE_SUCCESS != (rc = orte_util_filter_dash_host_nodes(allocated_nodes,
app->add_host))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/** check that anything is left! */
if (0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:no-mapped-node",
true, app->app, "");
return ORTE_ERR_SILENT;
}
}
/* finally, filter thru any resource constraints */
#if 0
for (item = opal_list_get_first(&app->resource_constraints);
item != opal_list_get_end(&app->resource_constraints);
item = opal_list_get_next(item)) {
req_res = (opal_sysinfo_value_t*)item;
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s CHECKING CONSTRAINT %s FOR APP %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
req_res->key, app->app));
/* check against node values */
item2 = opal_list_get_first(allocated_nodes);
while (item2 != opal_list_get_end(allocated_nodes)) {
next = opal_list_get_next(item2);
node = (orte_node_t*)item2;
found = false;
for (item3 = opal_list_get_first(&node->resources);
item3 != opal_list_get_end(&node->resources);
item3 = opal_list_get_next(item3)) {
ninfo = (opal_sysinfo_value_t*)item3;
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s COMPARING CONSTRAINT %s WITH RESOURCE %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
req_res->key, ninfo->key));
if (0 == strcmp(req_res->key, ninfo->key)) {
if (OPAL_STRING == req_res->type) {
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s CHECKING RESOURCE %s:%s ON NODE %s:%s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ninfo->key, req_res->data.str,
node->name, ninfo->data.str));
/* there could be multiple hosts or host-types here */
vals = opal_argv_split(req_res->data.str, ',');
for (i=0; NULL != vals[i]; i++) {
if (0 == strncasecmp(vals[i], ninfo->data.str,
strlen(vals[i]))) {
found = true;
break;
}
}
opal_argv_free(vals);
} else {
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s CHECKING RESOURCE %s:%ld ON NODE %s:%ld",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ninfo->key, (long)req_res->data.i64,
node->name, (long)ninfo->data.i64));
if (req_res->data.i64 <= ninfo->data.i64) {
found = true;
}
}
break;
}
}
OPAL_OUTPUT_VERBOSE((5, orte_rmaps_base.rmaps_output,
"%s CONSTRAINT RESULTED IN %s NODE %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
found ? "RETAINING" : "REMOVING",
node->name));
if (!found) {
opal_list_remove_item(allocated_nodes, item2);
OBJ_RELEASE(item2);
}
item2 = next;
}
}
#endif
/* If the "no local" option was set, then remove the local node
* from the list
*/
if (policy & ORTE_MAPPING_NO_USE_LOCAL) {
/* we don't need to check through the entire list as
* the head node - if it is on the list at all - will
* always be in the first position
*/
item = opal_list_get_first(allocated_nodes);
node = (orte_node_t*)item;
/* need to check ifislocal because the name in the
* hostfile may not have been FQDN, while name returned
* by gethostname may have been (or vice versa)
*/
if (opal_ifislocal(node->name)) {
opal_list_remove_item(allocated_nodes, item);
OBJ_RELEASE(item); /* "un-retain" it */
}
/** if we aren't mapping daemons, check that anything is left! */
if (NULL != app && 0 == opal_list_get_size(allocated_nodes)) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:nolocal-no-available-resources", true);
return ORTE_ERR_SILENT;
}
}
/* if the app is NULL, then we are mapping daemons - so remove
* all nodes that already have a daemon on them
*
* NOTE: it is okay if the final list is empty. It just means
* that there are no new daemons to be launched for the
* virtual machine
*/
if (NULL == app) {
item = opal_list_get_first(allocated_nodes);
while (item != opal_list_get_end(allocated_nodes)) {
/** save the next pointer in case we remove this node */
next = opal_list_get_next(item);
/** already have a daemon? */
node = (orte_node_t*)item;
if (NULL != node->daemon) {
/* if this is the local node, keep it if requested */
if (node->daemon->name.vpid == ORTE_PROC_MY_HNP->vpid &&
!(policy & ORTE_MAPPING_NO_USE_LOCAL)) {
item = next;
continue;
}
opal_list_remove_item(allocated_nodes, item);
OBJ_RELEASE(item); /* "un-retain" it */
}
/** go on to next item */
item = next;
}
*total_num_slots = 0;
return ORTE_SUCCESS;
}
/* remove all nodes that are already at max usage, and
* compute the total number of allocated slots while
* we do so
*/
num_slots = 0;
item = opal_list_get_first(allocated_nodes);
while (item != opal_list_get_end(allocated_nodes)) {
/** save the next pointer in case we remove this node */
next = opal_list_get_next(item);
/** check to see if this node is fully used - remove if so */
node = (orte_node_t*)item;
if (0 != node->slots_max && node->slots_inuse > node->slots_max) {
opal_list_remove_item(allocated_nodes, item);
OBJ_RELEASE(item); /* "un-retain" it */
} else { /** otherwise, add the slots for our job to the total */
num_slots += node->slots_alloc;
}
/** go on to next item */
item = next;
}
/* Sanity check to make sure we have resources available */
if (0 == num_slots) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:all-available-resources-used", true);
return ORTE_ERR_SILENT;
}
*total_num_slots = num_slots;
return ORTE_SUCCESS;
}
/*
* Add the specified node definitions to the global data store
* NOTE: this removes all items from the list!
*/
int orte_ras_base_node_insert(opal_list_t* nodes, orte_job_t *jdata)
{
opal_list_item_t* item;
orte_std_cntr_t num_nodes;
int rc, i;
orte_node_t *node, *hnp_node;
char *ptr;
bool hnp_alone = true;
/* get the number of nodes */
num_nodes = (orte_std_cntr_t)opal_list_get_size(nodes);
if (0 == num_nodes) {
return ORTE_SUCCESS; /* nothing to do */
}
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert inserting %ld nodes",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(long)num_nodes));
/* set the size of the global array - this helps minimize time
* spent doing realloc's
*/
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_size(orte_node_pool, num_nodes))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* get the hnp node's info */
hnp_node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, 0);
/* cycle through the list */
while (NULL != (item = opal_list_remove_first(nodes))) {
node = (orte_node_t*)item;
/* the HNP had to already enter its node on the array - that entry is in the
* first position since it is the first one entered. We need to check to see
* if this node is the same as the HNP's node so we don't double-enter it
*/
if (NULL != hnp_node &&
(0 == strcmp(node->name, hnp_node->name) ||
0 == strcmp(node->name, "localhost") ||
opal_ifislocal(node->name))) {
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert updating HNP [%s] info to %ld slots",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
node->name,
(long)node->slots));
/* flag that hnp has been allocated */
orte_hnp_is_allocated = true;
/* update the total slots in the job */
orte_ras_base.total_slots_alloc += node->slots;
/* copy the allocation data to that node's info */
hnp_node->slots += node->slots;
hnp_node->slots_max = node->slots_max;
hnp_node->launch_id = node->launch_id;
if (orte_managed_allocation) {
/* the slots are always treated as sacred
* in managed allocations
*/
hnp_node->slots_given = true;
} else {
/* in unmanaged allocations, take whatever
* was determined by the hostfile or dash-host
* parsers
*/
hnp_node->slots_given = node->slots_given;
}
/* use the local name for our node - don't trust what
* we got from an RM. If requested, store the resolved
* nodename info
*/
if (orte_show_resolved_nodenames) {
/* if the node name is different, store it as an alias */
if (0 != strcmp(node->name, hnp_node->name)) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&hnp_node->alias, node->name, false);
}
if (NULL != node->alias) {
/* now copy over any aliases that are unique */
for (i=0; NULL != node->alias[i]; i++) {
opal_argv_append_unique_nosize(&hnp_node->alias, node->alias[i], false);
}
}
}
/* don't keep duplicate copy */
OBJ_RELEASE(node);
} else {
/* insert the object onto the orte_nodes global array */
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert node %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(NULL == node->name) ? "NULL" : node->name));
if (orte_managed_allocation) {
/* the slots are always treated as sacred
* in managed allocations
*/
node->slots_given = true;
}
/* insert it into the array */
node->index = opal_pointer_array_add(orte_node_pool, (void*)node);
if (ORTE_SUCCESS > (rc = node->index)) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* update the total slots in the job */
orte_ras_base.total_slots_alloc += node->slots;
/* check if we have fqdn names in the allocation */
if (NULL != strchr(node->name, '.')) {
orte_have_fqdn_allocation = true;
}
/* indicate the HNP is not alone */
hnp_alone = false;
}
}
/* if we didn't find any fqdn names in the allocation, then
* ensure we don't have any domain info in the node record
* for the hnp
*/
if (!orte_have_fqdn_allocation && !hnp_alone) {
if (NULL != (ptr = strchr(hnp_node->name, '.'))) {
*ptr = '\0';
}
}
return ORTE_SUCCESS;
}
/*
* Sequentially map the ranks according to the placement in the
* specified hostfile
*/
static int orte_rmaps_seq_map(orte_job_t *jdata)
{
orte_job_map_t *map;
orte_app_context_t *app;
int i, n;
orte_std_cntr_t j;
opal_list_item_t *item;
orte_node_t *node, *nd, *save=NULL;
orte_vpid_t vpid;
orte_std_cntr_t num_nodes;
int rc;
opal_list_t *default_node_list=NULL;
opal_list_t *node_list=NULL;
orte_proc_t *proc;
mca_base_component_t *c = &mca_rmaps_seq_component.base_version;
OPAL_OUTPUT_VERBOSE((1, orte_rmaps_base.rmaps_output,
"%s rmaps:seq mapping job %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(jdata->jobid)));
/* this mapper can only handle initial launch
* when seq mapping is desired - allow
* restarting of failed apps
*/
if (ORTE_JOB_CONTROL_RESTART & jdata->controls) {
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:seq: job %s is being restarted - seq cannot map",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
if (NULL != jdata->map->req_mapper &&
0 != strcasecmp(jdata->map->req_mapper, c->mca_component_name)) {
/* a mapper has been specified, and it isn't me */
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:seq: job %s not using sequential mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
if (ORTE_MAPPING_SEQ != ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
/* I don't know how to do these - defer */
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:seq: job %s not using seq mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
opal_output_verbose(5, orte_rmaps_base.rmaps_output,
"mca:rmaps:seq: mapping job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* flag that I did the mapping */
if (NULL != jdata->map->last_mapper) {
free(jdata->map->last_mapper);
}
jdata->map->last_mapper = strdup(c->mca_component_name);
/* conveniece def */
map = jdata->map;
/* if there is a default hostfile, go and get its ordered list of nodes */
if (NULL != orte_default_hostfile) {
default_node_list = OBJ_NEW(opal_list_t);
if (ORTE_SUCCESS != (rc = orte_util_get_ordered_host_list(default_node_list, orte_default_hostfile))) {
ORTE_ERROR_LOG(rc);
goto error;
}
}
/* start at the beginning... */
vpid = 0;
jdata->num_procs = 0;
if (NULL != default_node_list) {
save = (orte_node_t*)opal_list_get_first(default_node_list);
}
/* cycle through the app_contexts, mapping them sequentially */
for(i=0; i < jdata->apps->size; i++) {
if (NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, i))) {
continue;
}
/* dash-host trumps hostfile */
if (NULL != app->dash_host) {
node_list = OBJ_NEW(opal_list_t);
if (ORTE_SUCCESS != (rc = orte_util_get_ordered_dash_host_list(node_list, app->dash_host))) {
ORTE_ERROR_LOG(rc);
goto error;
}
nd = (orte_node_t*)opal_list_get_first(node_list);
} else if (NULL != app->hostfile) {
node_list = OBJ_NEW(opal_list_t);
if (ORTE_SUCCESS != (rc = orte_util_get_ordered_host_list(node_list, app->hostfile))) {
ORTE_ERROR_LOG(rc);
goto error;
}
nd = (orte_node_t*)opal_list_get_first(node_list);
} else if (NULL != default_node_list) {
node_list = default_node_list;
nd = save;
} else {
/* can't do anything - no nodes available! */
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
/* check for nolocal and remove the head node, if required */
if (map->mapping & ORTE_MAPPING_NO_USE_LOCAL) {
for (item = opal_list_get_first(node_list);
item != opal_list_get_end(node_list);
item = opal_list_get_next(item) ) {
node = (orte_node_t*)item;
/* need to check ifislocal because the name in the
* hostfile may not have been FQDN, while name returned
* by gethostname may have been (or vice versa)
*/
if (opal_ifislocal(node->name)) {
opal_list_remove_item(node_list, item);
OBJ_RELEASE(item); /* "un-retain" it */
}
}
}
if (NULL == node_list || 0 == (num_nodes = (orte_std_cntr_t)opal_list_get_size(node_list))) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
/* if num_procs wasn't specified, set it now */
if (0 == app->num_procs) {
app->num_procs = num_nodes;
}
for (n=0; n < app->num_procs; n++) {
/* find this node on the global array - this is necessary so
* that our mapping gets saved on that array as the objects
* returned by the hostfile function are -not- on the array
*/
node = NULL;
for (j=0; j < orte_node_pool->size; j++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, j))) {
continue;
}
if (0 == strcmp(nd->name, node->name)) {
break;
}
}
if (NULL == node) {
/* wasn't found - that is an error */
orte_show_help("help-orte-rmaps-seq.txt",
"orte-rmaps-seq:resource-not-found",
true, nd->name);
rc = ORTE_ERR_SILENT;
goto error;
}
/* ensure the node is in the map */
if (!node->mapped) {
OBJ_RETAIN(node);
opal_pointer_array_add(map->nodes, node);
node->mapped = true;
}
proc = orte_rmaps_base_setup_proc(jdata, node, i);
if ((node->slots < (int)node->num_procs) ||
(0 < node->slots_max && node->slots_max < (int)node->num_procs)) {
if (ORTE_MAPPING_NO_OVERSUBSCRIBE & ORTE_GET_MAPPING_DIRECTIVE(jdata->map->mapping)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:alloc-error",
true, node->num_procs, app->app);
rc = ORTE_ERR_SILENT;
goto error;
}
/* flag the node as oversubscribed so that sched-yield gets
* properly set
*/
node->oversubscribed = true;
}
/* assign the vpid */
proc->name.vpid = vpid++;
#if OPAL_HAVE_HWLOC
/* assign the locale - okay for the topo to be null as
* it just means it wasn't returned
*/
if (NULL != node->topology) {
proc->locale = hwloc_get_root_obj(node->topology);
}
#endif
/* add to the jdata proc array */
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
goto error;
}
/* move to next node */
nd = (orte_node_t*)opal_list_get_next((opal_list_item_t*)nd);
}
/** track the total number of processes we mapped */
jdata->num_procs += app->num_procs;
/* cleanup the node list if it came from this app_context */
if (node_list != default_node_list) {
while (NULL != (item = opal_list_remove_first(node_list))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(node_list);
} else {
save = nd;
}
}
return ORTE_SUCCESS;
error:
if (NULL != default_node_list) {
while (NULL != (item = opal_list_remove_first(default_node_list))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(default_node_list);
}
if (NULL != node_list) {
while (NULL != (item = opal_list_remove_first(node_list))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(node_list);
}
return rc;
}
/* we can only enter this routine if no other allocation
* was found, so we only need to know that finding any
* relative node syntax should generate an immediate error
*/
int orte_util_add_dash_host_nodes(opal_list_t *nodes,
char ** host_argv)
{
opal_list_item_t* item;
orte_std_cntr_t i, j, k;
int rc;
char **mapped_nodes = NULL, **mini_map;
orte_node_t *node;
/* Accumulate all of the host name mappings */
for (j = 0; j < opal_argv_count(host_argv); ++j) {
mini_map = opal_argv_split(host_argv[j], ',');
if (mapped_nodes == NULL) {
mapped_nodes = mini_map;
} else {
for (k = 0; NULL != mini_map[k]; ++k) {
rc = opal_argv_append_nosize(&mapped_nodes,
mini_map[k]);
if (OPAL_SUCCESS != rc) {
goto cleanup;
}
}
opal_argv_free(mini_map);
}
}
/* Did we find anything? If not, then do nothing */
if (NULL == mapped_nodes) {
return ORTE_SUCCESS;
}
/* go through the names found and
add them to the host list. If they're not unique, then
bump the slots count for each duplicate */
for (i = 0; NULL != mapped_nodes[i]; ++i) {
/* if the specified node contains a relative node syntax,
* this is an error
*/
if ('+' == mapped_nodes[i][0]) {
orte_show_help("help-dash-host.txt", "dash-host:relative-syntax",
true, mapped_nodes[i]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
/* see if the node is already on the list */
for (item = opal_list_get_first(nodes);
item != opal_list_get_end(nodes);
item = opal_list_get_next(item)) {
node = (orte_node_t*) item;
if (0 == strcmp(node->name, mapped_nodes[i]) ||
(0 == strcmp(node->name, orte_process_info.nodename) &&
(0 == strcmp(mapped_nodes[i], "localhost") || opal_ifislocal(mapped_nodes[i])))) {
++node->slots;
/* the dash-host option presumes definition of num_slots */
node->slots_given = true;
break;
}
}
/* If we didn't find it, add it to the list */
if (item == opal_list_get_end(nodes)) {
node = OBJ_NEW(orte_node_t);
if (NULL == node) {
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* check to see if this is a local name */
if (0 == strcmp(mapped_nodes[i], "localhost") ||
opal_ifislocal(mapped_nodes[i])) {
/* it is local, so use the local nodename to avoid
* later confusion
*/
if (orte_show_resolved_nodenames &&
0 != strcmp(mapped_nodes[i], orte_process_info.nodename)) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&node->alias, mapped_nodes[i], false);
}
node->name = strdup(orte_process_info.nodename);
} else {
/* not local - use the given name */
node->name = strdup(mapped_nodes[i]);
}
node->state = ORTE_NODE_STATE_UP;
node->slots_inuse = 0;
node->slots_max = 0;
node->slots = 1;
/* the dash-host option presumes definition of num_slots */
node->slots_given = true;
opal_list_append(nodes, &node->super);
}
}
rc = ORTE_SUCCESS;
cleanup:
if (NULL != mapped_nodes) {
opal_argv_free(mapped_nodes);
}
return rc;
}
int orte_pls_rsh_launch(orte_jobid_t jobid)
{
orte_job_map_t *map;
opal_list_item_t *n_item;
orte_mapped_node_t *rmaps_node;
orte_std_cntr_t num_nodes;
orte_vpid_t vpid;
int node_name_index1;
int node_name_index2;
int proc_name_index;
int local_exec_index, local_exec_index_end;
char *jobid_string = NULL;
char *uri, *param;
char **argv = NULL, **tmp;
char *prefix_dir;
int argc;
int rc;
sigset_t sigs;
struct passwd *p;
bool remote_sh = false, remote_csh = false;
bool local_sh = false, local_csh = false;
char *lib_base = NULL, *bin_base = NULL;
orte_pls_daemon_info_t *dmn;
orte_pls_rsh_shell_t shell;
if (mca_pls_rsh_component.timing) {
if (0 != gettimeofday(&joblaunchstart, NULL)) {
opal_output(0, "pls_rsh: could not obtain start time");
joblaunchstart.tv_sec = 0;
joblaunchstart.tv_usec = 0;
}
}
/* setup a list that will contain the info for all the daemons
* so we can store it on the registry when done and use it
* locally to track their state
*/
OBJ_CONSTRUCT(&active_daemons, opal_list_t);
/* Get the map for this job
* We need the entire mapping for a couple of reasons:
* - need the prefix to start with.
* - need to know the nodes we are launching on
* All other mapping responsibilities fall to orted in the fork PLS
*/
rc = orte_rmaps.get_job_map(&map, jobid);
if (ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
OBJ_DESTRUCT(&active_daemons);
return rc;
}
/* if the user requested that we re-use daemons,
* launch the procs on any existing, re-usable daemons
*/
if (orte_pls_base.reuse_daemons) {
if (ORTE_SUCCESS != (rc = orte_pls_base_launch_on_existing_daemons(map))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(map);
OBJ_DESTRUCT(&active_daemons);
return rc;
}
}
num_nodes = (orte_std_cntr_t)opal_list_get_size(&map->nodes);
if (0 == num_nodes) {
/* nothing left to do - just return */
OBJ_RELEASE(map);
OBJ_DESTRUCT(&active_daemons);
return ORTE_SUCCESS;
}
if (mca_pls_rsh_component.debug_daemons &&
mca_pls_rsh_component.num_concurrent < num_nodes) {
/* we can't run in this situation, so pretty print the error
* and exit
*/
opal_show_help("help-pls-rsh.txt", "deadlock-params",
true, mca_pls_rsh_component.num_concurrent, num_nodes);
OBJ_RELEASE(map);
OBJ_DESTRUCT(&active_daemons);
return ORTE_ERR_FATAL;
}
/*
* After a discussion between Ralph & Jeff, we concluded that we
* really are handling the prefix dir option incorrectly. It currently
* is associated with an app_context, yet it really refers to the
* location where OpenRTE/Open MPI is installed on a NODE. Fixing
* this right now would involve significant change to orterun as well
* as elsewhere, so we will intentionally leave this incorrect at this
* point. The error, however, is identical to that seen in all prior
* releases of OpenRTE/Open MPI, so our behavior is no worse than before.
*
* A note to fix this, along with ideas on how to do so, has been filed
* on the project's Trac system under "feature enhancement".
*
* For now, default to the prefix_dir provided in the first app_context.
* Since there always MUST be at least one app_context, we are safe in
* doing this.
*/
prefix_dir = map->apps[0]->prefix_dir;
/*
* Allocate a range of vpids for the daemons.
*/
if (num_nodes == 0) {
return ORTE_ERR_BAD_PARAM;
}
rc = orte_ns.reserve_range(0, num_nodes, &vpid);
if (ORTE_SUCCESS != rc) {
goto cleanup;
}
/* setup the orted triggers for passing their launch info */
if (ORTE_SUCCESS != (rc = orte_smr.init_orted_stage_gates(jobid, num_nodes, NULL, NULL))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* need integer value for command line parameter */
if (ORTE_SUCCESS != (rc = orte_ns.convert_jobid_to_string(&jobid_string, jobid))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* What is our local shell? */
shell = ORTE_PLS_RSH_SHELL_UNKNOWN;
p = getpwuid(getuid());
if (NULL != p) {
param = p->pw_shell;
shell = find_shell(p->pw_shell);
}
/* If we didn't find it in getpwuid(), try looking at the $SHELL
environment variable (see
https://svn.open-mpi.org/trac/ompi/ticket/1060) */
if (ORTE_PLS_RSH_SHELL_UNKNOWN == shell &&
NULL != (param = getenv("SHELL"))) {
shell = find_shell(param);
}
switch (shell) {
case ORTE_PLS_RSH_SHELL_SH: /* fall through */
case ORTE_PLS_RSH_SHELL_KSH: /* fall through */
case ORTE_PLS_RSH_SHELL_ZSH: /* fall through */
case ORTE_PLS_RSH_SHELL_BASH: local_sh = true; break;
case ORTE_PLS_RSH_SHELL_TCSH: /* fall through */
case ORTE_PLS_RSH_SHELL_CSH: local_csh = true; break;
default:
opal_output(0, "WARNING: local probe returned unhandled shell:%s assuming bash\n",
(NULL != param) ? param : "unknown");
remote_sh = true;
break;
}
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: local csh: %d, local sh: %d\n",
local_csh, local_sh);
}
/* What is our remote shell? */
if (mca_pls_rsh_component.assume_same_shell) {
remote_sh = local_sh;
remote_csh = local_csh;
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: assuming same remote shell as local shell");
}
} else {
orte_pls_rsh_shell_t shell;
rmaps_node = (orte_mapped_node_t*)opal_list_get_first(&map->nodes);
rc = orte_pls_rsh_probe(rmaps_node, &shell);
if (ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
return rc;
}
switch (shell) {
case ORTE_PLS_RSH_SHELL_SH: /* fall through */
case ORTE_PLS_RSH_SHELL_KSH: /* fall through */
case ORTE_PLS_RSH_SHELL_ZSH: /* fall through */
case ORTE_PLS_RSH_SHELL_BASH: remote_sh = true; break;
case ORTE_PLS_RSH_SHELL_TCSH: /* fall through */
case ORTE_PLS_RSH_SHELL_CSH: remote_csh = true; break;
default:
opal_output(0, "WARNING: rsh probe returned unhandled shell; assuming bash\n");
remote_sh = true;
}
}
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: remote csh: %d, remote sh: %d\n",
remote_csh, remote_sh);
}
/*
* Build argv array
*/
argv = opal_argv_copy(mca_pls_rsh_component.agent_argv);
argc = mca_pls_rsh_component.agent_argc;
node_name_index1 = argc;
opal_argv_append(&argc, &argv, "<template>");
/* Do we need to source .profile on the remote side? */
if (!(remote_csh || remote_sh)) {
int i;
tmp = opal_argv_split("( test ! -r ./.profile || . ./.profile;", ' ');
if (NULL == tmp) {
return ORTE_ERR_OUT_OF_RESOURCE;
}
for (i = 0; NULL != tmp[i]; ++i) {
opal_argv_append(&argc, &argv, tmp[i]);
}
opal_argv_free(tmp);
}
/* add the daemon command (as specified by user) */
local_exec_index = argc;
opal_argv_append(&argc, &argv, mca_pls_rsh_component.orted);
/* check for debug flags */
orte_pls_base_mca_argv(&argc, &argv);
opal_argv_append(&argc, &argv, "--bootproxy");
opal_argv_append(&argc, &argv, jobid_string);
opal_argv_append(&argc, &argv, "--name");
proc_name_index = argc;
opal_argv_append(&argc, &argv, "<template>");
/* tell the daemon how many procs are in the daemon's job */
opal_argv_append(&argc, &argv, "--num_procs");
asprintf(¶m, "%lu", (unsigned long)(vpid + num_nodes));
opal_argv_append(&argc, &argv, param);
free(param);
/* tell the daemon the starting vpid of the daemon's job */
opal_argv_append(&argc, &argv, "--vpid_start");
opal_argv_append(&argc, &argv, "0");
opal_argv_append(&argc, &argv, "--nodename");
node_name_index2 = argc;
opal_argv_append(&argc, &argv, "<template>");
/* 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);
/* setup ns contact info */
opal_argv_append(&argc, &argv, "--nsreplica");
if (NULL != orte_process_info.ns_replica_uri) {
uri = strdup(orte_process_info.ns_replica_uri);
} else {
uri = orte_rml.get_uri();
}
asprintf(¶m, "\"%s\"", uri);
opal_argv_append(&argc, &argv, param);
free(uri);
free(param);
/* setup gpr contact info */
opal_argv_append(&argc, &argv, "--gprreplica");
if (NULL != orte_process_info.gpr_replica_uri) {
uri = strdup(orte_process_info.gpr_replica_uri);
} else {
uri = orte_rml.get_uri();
}
asprintf(¶m, "\"%s\"", uri);
opal_argv_append(&argc, &argv, param);
free(uri);
free(param);
local_exec_index_end = argc;
if (!(remote_csh || remote_sh)) {
opal_argv_append(&argc, &argv, ")");
}
if (mca_pls_rsh_component.debug) {
param = opal_argv_join(argv, ' ');
if (NULL != param) {
opal_output(0, "pls:rsh: final template argv:");
opal_output(0, "pls:rsh: %s", param);
free(param);
}
}
/* Figure out the basenames for the libdir and bindir. This
requires some explanation:
- Use opal_install_dirs.libdir and opal_install_dirs.bindir instead of -D'ing some macros
in this directory's Makefile.am because it makes all the
dependencies work out correctly. These are defined in
opal/install_dirs.h.
- After a discussion on the devel-core mailing list, the
developers decided that we should use the local directory
basenames as the basis for the prefix on the remote note.
This does not handle a few notable cases (e.g., f the
libdir/bindir is not simply a subdir under the prefix, if the
libdir/bindir basename is not the same on the remote node as
it is here in the local node, etc.), but we decided that
--prefix was meant to handle "the common case". If you need
something more complex than this, a) edit your shell startup
files to set PATH/LD_LIBRARY_PATH properly on the remove
node, or b) use some new/to-be-defined options that
explicitly allow setting the bindir/libdir on the remote
node. We decided to implement these options (e.g.,
--remote-bindir and --remote-libdir) to orterun when it
actually becomes a problem for someone (vs. a hypothetical
situation).
Hence, for now, we simply take the basename of this install's
libdir and bindir and use it to append this install's prefix
and use that on the remote node.
*/
lib_base = opal_basename(opal_install_dirs.libdir);
bin_base = opal_basename(opal_install_dirs.bindir);
/*
* Iterate through each of the nodes
*/
if (mca_pls_rsh_component.timing) {
/* allocate space to track the start times */
launchstart = (struct timeval*)malloc((num_nodes+vpid) * sizeof(struct timeval));
}
for(n_item = opal_list_get_first(&map->nodes);
n_item != opal_list_get_end(&map->nodes);
n_item = opal_list_get_next(n_item)) {
orte_process_name_t* name;
pid_t pid;
char *exec_path;
char **exec_argv;
rmaps_node = (orte_mapped_node_t*)n_item;
if (mca_pls_rsh_component.timing) {
if (0 != gettimeofday(&launchstart[vpid], NULL)) {
opal_output(0, "pls_rsh: could not obtain start time");
}
}
/* new daemon - setup to record its info */
dmn = OBJ_NEW(orte_pls_daemon_info_t);
dmn->active_job = jobid;
opal_list_append(&active_daemons, &dmn->super);
/* setup node name */
free(argv[node_name_index1]);
if (NULL != rmaps_node->username &&
0 != strlen (rmaps_node->username)) {
asprintf (&argv[node_name_index1], "%s@%s",
rmaps_node->username, rmaps_node->nodename);
} else {
argv[node_name_index1] = strdup(rmaps_node->nodename);
}
free(argv[node_name_index2]);
argv[node_name_index2] = strdup(rmaps_node->nodename);
/* save it in the daemon info */
dmn->nodename = strdup(rmaps_node->nodename);
/* initialize daemons process name */
rc = orte_ns.create_process_name(&name, rmaps_node->cell, 0, vpid);
if (ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* save it in the daemon info */
dmn->cell = rmaps_node->cell;
if (ORTE_SUCCESS != (rc = orte_dss.copy((void**)&(dmn->name), name, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* fork a child to exec the rsh/ssh session */
/* set the process state to "launched" */
if (ORTE_SUCCESS != (rc = orte_smr.set_proc_state(name, ORTE_PROC_STATE_LAUNCHED, 0))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
pid = fork();
if (pid < 0) {
rc = ORTE_ERR_OUT_OF_RESOURCE;
goto cleanup;
}
/* child */
if (pid == 0) {
char* name_string;
char** env;
char* var;
long fd, fdmax = sysconf(_SC_OPEN_MAX);
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: launching on node %s\n",
rmaps_node->nodename);
}
/* We don't need to sense an oversubscribed condition and set the sched_yield
* for the node as we are only launching the daemons at this time. The daemons
* are now smart enough to set the oversubscribed condition themselves when
* they launch the local procs.
*/
/* Is this a local launch?
*
* Not all node names may be resolvable (if we found
* localhost in the hostfile, for example). So first
* check trivial case of node_name being same as the
* current nodename, which must be local. If that doesn't
* match, check using ifislocal().
*/
if (!mca_pls_rsh_component.force_rsh &&
(0 == strcmp(rmaps_node->nodename, orte_system_info.nodename) ||
opal_ifislocal(rmaps_node->nodename))) {
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: %s is a LOCAL node\n",
rmaps_node->nodename);
}
if (mca_pls_rsh_component.timing) {
/* since this is a local launch, the daemon will never reach
* the waitpid callback - so set the start value to
* something nonsensical
*/
launchstart[vpid].tv_sec = 0;
launchstart[vpid].tv_usec = 0;
}
exec_path = opal_path_findv(argv[local_exec_index], 0, environ, NULL);
if (NULL == exec_path && NULL == prefix_dir) {
rc = orte_pls_rsh_fill_exec_path (&exec_path);
if (ORTE_SUCCESS != rc) {
exit(-1); /* the forked process MUST exit */
}
} else {
if (NULL != prefix_dir) {
exec_path = opal_os_path( false, prefix_dir, bin_base, "orted", NULL );
}
/* If we yet did not fill up the execpath, do so now */
if (NULL == exec_path) {
rc = orte_pls_rsh_fill_exec_path (&exec_path);
if (ORTE_SUCCESS != rc) {
exit(-1); /* the forked process MUST exit */
}
}
}
/* If we have a prefix, then modify the PATH and
LD_LIBRARY_PATH environment variables. We're
already in the child process, so it's ok to modify
environ. */
if (NULL != prefix_dir) {
char *oldenv, *newenv;
/* Reset PATH */
newenv = opal_os_path( false, prefix_dir, bin_base, NULL );
oldenv = getenv("PATH");
if (NULL != oldenv) {
char *temp;
asprintf(&temp, "%s:%s", newenv, oldenv );
free( newenv );
newenv = temp;
}
opal_setenv("PATH", newenv, true, &environ);
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: reset PATH: %s", newenv);
}
free(newenv);
/* Reset LD_LIBRARY_PATH */
newenv = opal_os_path( false, prefix_dir, lib_base, NULL );
oldenv = getenv("LD_LIBRARY_PATH");
if (NULL != oldenv) {
char* temp;
asprintf(&temp, "%s:%s", newenv, oldenv);
free(newenv);
newenv = temp;
}
opal_setenv("LD_LIBRARY_PATH", newenv, true, &environ);
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: reset LD_LIBRARY_PATH: %s",
newenv);
}
free(newenv);
}
/* Since this is a local execution, we need to
potentially whack the final ")" in the argv (if
sh/csh conditionals, from above). Note that we're
modifying the argv[] in the child process, so
there's no need to save this and restore it
afterward -- the parent's argv[] is unmodified. */
if (NULL != argv[local_exec_index_end]) {
free(argv[local_exec_index_end]);
argv[local_exec_index_end] = NULL;
}
/* tell the daemon to setup its own process session/group */
opal_argv_append(&argc, &argv, "--set-sid");
exec_argv = &argv[local_exec_index];
/* Finally, chdir($HOME) because we're making the
assumption that this is what will happen on
remote nodes (via rsh/ssh). This allows a user
to specify a path that is relative to $HOME for
both the cwd and argv[0] and it will work on
all nodes -- including the local nost.
Otherwise, it would work on remote nodes and
not the local node. If the user does not start
in $HOME on the remote nodes... well... let's
hope they start in $HOME. :-) */
var = getenv("HOME");
if (NULL != var) {
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: changing to directory %s", var);
}
/* Ignore errors -- what are we going to do?
(and we ignore errors on the remote nodes
in the fork pls, so this is consistent) */
chdir(var);
}
} else {
if (mca_pls_rsh_component.debug) {
opal_output(0, "pls:rsh: %s is a REMOTE node\n",
rmaps_node->nodename);
}
exec_argv = argv;
exec_path = strdup(mca_pls_rsh_component.agent_path);
if (NULL != prefix_dir) {
char *opal_prefix = getenv("OPAL_PREFIX");
if (remote_sh) {
asprintf (&argv[local_exec_index],
"%s%s%s PATH=%s/%s:$PATH ; export PATH ; "
"LD_LIBRARY_PATH=%s/%s:$LD_LIBRARY_PATH ; export LD_LIBRARY_PATH ; "
"%s/%s/%s",
(opal_prefix != NULL ? "OPAL_PREFIX=" : ""),
(opal_prefix != NULL ? opal_prefix : ""),
(opal_prefix != NULL ? " ;" : ""),
prefix_dir, bin_base,
prefix_dir, lib_base,
prefix_dir, bin_base,
mca_pls_rsh_component.orted);
}
if (remote_csh) {
/* [t]csh is a bit more challenging -- we
have to check whether LD_LIBRARY_PATH
is already set before we try to set it.
Must be very careful about obeying
[t]csh's order of evaluation and not
using a variable before it is defined.
See this thread for more details:
http://www.open-mpi.org/community/lists/users/2006/01/0517.php. */
asprintf (&argv[local_exec_index],
"%s%s%s set path = ( %s/%s $path ) ; "
"if ( $?LD_LIBRARY_PATH == 1 ) "
"set OMPI_have_llp ; "
"if ( $?LD_LIBRARY_PATH == 0 ) "
"setenv LD_LIBRARY_PATH %s/%s ; "
"if ( $?OMPI_have_llp == 1 ) "
"setenv LD_LIBRARY_PATH %s/%s:$LD_LIBRARY_PATH ; "
"%s/%s/%s",
(opal_prefix != NULL ? "setenv OPAL_PREFIX " : ""),
(opal_prefix != NULL ? opal_prefix : ""),
(opal_prefix != NULL ? " ;" : ""),
prefix_dir, bin_base,
prefix_dir, lib_base,
prefix_dir, lib_base,
prefix_dir, bin_base,
mca_pls_rsh_component.orted);
}
}
}
/* setup process name */
rc = orte_ns.get_proc_name_string(&name_string, name);
if (ORTE_SUCCESS != rc) {
opal_output(0, "orte_pls_rsh: unable to create process name");
exit(-1);
}
free(argv[proc_name_index]);
argv[proc_name_index] = strdup(name_string);
if (!mca_pls_rsh_component.debug) {
/* setup stdin */
int fd = open("/dev/null", O_RDWR);
dup2(fd, 0);
close(fd);
}
/* close all file descriptors w/ exception of stdin/stdout/stderr */
for(fd=3; fd<fdmax; fd++)
close(fd);
/* Set signal handlers back to the default. Do this close
to the execve() because the event library may (and likely
will) reset them. If we don't do this, the event
library may have left some set that, at least on some
OS's, don't get reset via fork() or exec(). Hence, the
orted could be unkillable (for example). */
set_handler_default(SIGTERM);
set_handler_default(SIGINT);
set_handler_default(SIGHUP);
set_handler_default(SIGPIPE);
set_handler_default(SIGCHLD);
/* Unblock all signals, for many of the same reasons that
we set the default handlers, above. This is noticable
on Linux where the event library blocks SIGTERM, but we
don't want that blocked by the orted (or, more
specifically, we don't want it to be blocked by the
orted and then inherited by the ORTE processes that it
forks, making them unkillable by SIGTERM). */
sigprocmask(0, 0, &sigs);
sigprocmask(SIG_UNBLOCK, &sigs, 0);
/* setup environment */
env = opal_argv_copy(environ);
var = mca_base_param_environ_variable("seed",NULL,NULL);
opal_setenv(var, "0", true, &env);
/* exec the daemon */
if (mca_pls_rsh_component.debug) {
param = opal_argv_join(exec_argv, ' ');
if (NULL != param) {
char* env_array = opal_argv_join( env, ' ' );
opal_output(0, "pls:rsh: executing: (%s) %s [%s]",
exec_path, param, env_array);
free(param); free(env_array);
}
}
execve(exec_path, exec_argv, env);
opal_output(0, "pls:rsh: execv of %s failed with errno=%s(%d)\n",
exec_path, strerror(errno), errno);
exit(-1);
} else { /* father */
OPAL_THREAD_LOCK(&mca_pls_rsh_component.lock);
/* JJH Bug:
* If we are in '--debug-daemons' we keep the ssh connection
* alive for the span of the run. If we use this option
* AND we launch on more than "num_concurrent" machines
* then we will deadlock. No connections are terminated
* until the job is complete, no job is started
* since all the orteds are waiting for all the others
* to come online, and the others ore not launched because
* we are waiting on those that have started to terminate
* their ssh tunnels. :(
*/
if (mca_pls_rsh_component.num_children++ >=
mca_pls_rsh_component.num_concurrent) {
opal_condition_wait(&mca_pls_rsh_component.cond, &mca_pls_rsh_component.lock);
}
OPAL_THREAD_UNLOCK(&mca_pls_rsh_component.lock);
/* setup callback on sigchild - wait until setup above is complete
* as the callback can occur in the call to orte_wait_cb
*/
orte_wait_cb(pid, orte_pls_rsh_wait_daemon, dmn);
/* if required - add delay to avoid problems w/ X11 authentication */
if (mca_pls_rsh_component.debug && mca_pls_rsh_component.delay) {
sleep(mca_pls_rsh_component.delay);
}
vpid++;
}
free(name);
}
/* all done, so store the daemon info on the registry */
if (ORTE_SUCCESS != (rc = orte_pls_base_store_active_daemons(&active_daemons))) {
ORTE_ERROR_LOG(rc);
}
cleanup:
OBJ_RELEASE(map);
if (NULL != lib_base) {
free(lib_base);
}
if (NULL != bin_base) {
free(bin_base);
}
if (NULL != jobid_string) free(jobid_string); /* done with this variable */
if (NULL != argv) opal_argv_free(argv);
return rc;
}
int
main(int argc, char *argv[])
{
char hostname[OPAL_MAXHOSTNAMELEN];
opal_init(&argc, &argv);
test_init("opal_if");
/* 127.0.0.1 */
if (test_ifaddrtoname("127.0.0.1")) {
test_success();
} else {
test_failure("ifaddrtoname test failed for 127.0.0.1");
}
if (opal_ifislocal("127.0.0.1")) {
test_success();
} else {
test_failure("ifislocal test failed for 127.0.0.1");
}
/* localhost */
if (test_ifaddrtoname("localhost")) {
test_success();
} else {
test_failure("ifaddrtoname test failed for localhost");
}
if (opal_ifislocal("localhost")) {
test_success();
} else {
test_failure("ifislocal test failed for localhost");
}
/* 0.0.0.0 */
if (test_ifaddrtoname("0.0.0.0")) {
test_failure("ifaddrtoname test failed for 0.0.0.0");
} else {
test_success();
}
if (opal_ifislocal("0.0.0.0")) {
test_failure("opal_ifislocal test failed for 0.0.0.0");
} else {
test_success();
}
/* foo.example.com */
printf("This should generate a warning:\n");
fflush(stdout);
if (test_ifaddrtoname("foo.example.com")) {
test_failure("ifaddrtoname test failed for foo.example.com");
} else {
test_success();
}
printf("This should generate a warning:\n");
fflush(stdout);
if (opal_ifislocal("foo.example.com")) {
test_failure("ifislocal test failed for foo.example.com");
} else {
test_success();
}
/* local host name */
gethostname(hostname, sizeof(hostname));
if (test_ifaddrtoname(hostname)) {
test_success();
} else {
test_failure("ifaddrtoname test failed for local host name");
}
if (opal_ifislocal(hostname)) {
test_success();
} else {
test_failure("ifislocal test failed for local host name");
}
test_finalize();
opal_finalize();
return 0;
}
int orte_util_filter_dash_host_nodes(opal_list_t *nodes,
char** host_argv,
bool remove)
{
opal_list_item_t* item;
bool found;
opal_list_item_t *next;
orte_std_cntr_t i, j, len_mapped_node=0;
int rc;
char **mapped_nodes = NULL;
orte_node_t *node, *hnp_node;
int num_empty=0;
opal_list_t keep;
bool want_all_empty=false;
/* if the incoming node list is empty, then there
* is nothing to filter!
*/
if (opal_list_is_empty(nodes)) {
return ORTE_SUCCESS;
}
if (ORTE_SUCCESS != (rc = parse_dash_host(&mapped_nodes, host_argv))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* Did we find anything? If not, then do nothing */
if (NULL == mapped_nodes) {
return ORTE_SUCCESS;
}
/* NOTE: The following logic is based on knowing that
* any node can only be included on the incoming
* nodes list ONCE.
*/
/* get the hnp node's info */
hnp_node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, 0);
len_mapped_node = opal_argv_count(mapped_nodes);
/* setup a working list so we can put the final list
* of nodes in order. This way, if the user specifies a
* set of nodes, we will use them in the order in which
* they were specifed. Note that empty node requests
* will always be appended to the end
*/
OBJ_CONSTRUCT(&keep, opal_list_t);
for (i = 0; i < len_mapped_node; ++i) {
/* check if we are supposed to add some number of empty
* nodes here
*/
if ('*' == mapped_nodes[i][0]) {
/* if there is a number after the '*', then we are
* to insert a specific # of nodes
*/
if ('\0' == mapped_nodes[i][1]) {
/* take all empty nodes from the list */
num_empty = INT_MAX;
want_all_empty = true;
} else {
/* extract number of nodes to take */
num_empty = strtol(&mapped_nodes[i][1], NULL, 10);
}
/* search for empty nodes and take them */
item = opal_list_get_first(nodes);
while (0 < num_empty && item != opal_list_get_end(nodes)) {
next = opal_list_get_next(item); /* save this position */
node = (orte_node_t*)item;
/* see if this node is empty */
if (0 == node->slots_inuse) {
/* check to see if it is specified later */
for (j=i+1; j < len_mapped_node; j++) {
if (0 == strcmp(mapped_nodes[j], node->name)) {
/* specified later - skip this one */
goto skipnode;
}
}
if (remove) {
/* remove item from list */
opal_list_remove_item(nodes, item);
/* xfer to keep list */
opal_list_append(&keep, item);
} else {
/* mark the node as found */
node->mapped = true;
}
--num_empty;
}
skipnode:
item = next;
}
} else {
/* we are looking for a specific node on the list
* we have a match if one of two conditions is met:
* 1. the node_name and mapped_nodes directly match
* 2. the node_name is the local system name AND
* either the mapped_node is "localhost" OR it
* is a local interface as found by opal_ifislocal
*/
item = opal_list_get_first(nodes);
while (item != opal_list_get_end(nodes)) {
next = opal_list_get_next(item); /* save this position */
node = (orte_node_t*)item;
/* search -host list to see if this one is found */
found = false;
if (0 == strcmp(node->name, mapped_nodes[i]) ||
(0 == strcmp(node->name, hnp_node->name) &&
(0 == strcasecmp(mapped_nodes[i], "localhost") || opal_ifislocal(mapped_nodes[i])))) {
if (remove) {
/* remove item from list */
opal_list_remove_item(nodes, item);
/* xfer to keep list */
opal_list_append(&keep, item);
} else {
/* mark the node as found */
node->mapped = true;
}
break;
}
item = next;
}
}
/* done with the mapped entry */
free(mapped_nodes[i]);
mapped_nodes[i] = NULL;
}
/* was something specified that was -not- found? */
for (i=0; i < len_mapped_node; i++) {
if (NULL != mapped_nodes[i]) {
orte_show_help("help-dash-host.txt", "not-all-mapped-alloc",
true, mapped_nodes[i]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
}
if (!remove) {
/* all done */
rc = ORTE_SUCCESS;
goto cleanup;
}
/* clear the rest of the nodes list */
while (NULL != (item = opal_list_remove_first(nodes))) {
OBJ_RELEASE(item);
}
/* the nodes list has been cleared - rebuild it in order */
while (NULL != (item = opal_list_remove_first(&keep))) {
opal_list_append(nodes, item);
}
/* did they ask for more than we could provide */
if (!want_all_empty && 0 < num_empty) {
orte_show_help("help-dash-host.txt", "dash-host:not-enough-empty",
true, num_empty);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
rc = ORTE_SUCCESS;
/* done filtering existing list */
cleanup:
for (i=0; i < len_mapped_node; i++) {
if (NULL != mapped_nodes[i]) {
free(mapped_nodes[i]);
mapped_nodes[i] = NULL;
}
}
if (NULL != mapped_nodes) {
free(mapped_nodes);
}
return rc;
}
/*
* Add the specified node definitions to the global data store
* NOTE: this removes all items from the list!
*/
int orte_ras_base_node_insert(opal_list_t* nodes, orte_job_t *jdata)
{
opal_list_item_t* item;
orte_std_cntr_t num_nodes;
int rc, i;
orte_node_t *node, *hnp_node;
/* get the number of nodes */
num_nodes = (orte_std_cntr_t)opal_list_get_size(nodes);
if (0 == num_nodes) {
return ORTE_SUCCESS; /* nothing to do */
}
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert inserting %ld nodes",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(long)num_nodes));
/* set the size of the global array - this helps minimize time
* spent doing realloc's
*/
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_size(orte_node_pool, num_nodes))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* get the hnp node's info */
hnp_node = (orte_node_t*)(orte_node_pool->addr[0]);
/* cycle through the list */
while (NULL != (item = opal_list_remove_first(nodes))) {
node = (orte_node_t*)item;
/* the HNP had to already enter its node on the array - that entry is in the
* first position since it is the first one entered. We need to check to see
* if this node is the same as the HNP's node so we don't double-enter it
*/
if (0 == strcmp(node->name, hnp_node->name) ||
opal_ifislocal(node->name)) {
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert updating HNP info to %ld slots",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(long)node->slots));
/* flag that hnp has been allocated */
orte_hnp_is_allocated = true;
/* adjust the total slots in the job */
jdata->total_slots_alloc -= hnp_node->slots;
/* copy the allocation data to that node's info */
hnp_node->slots = node->slots;
hnp_node->slots_max = node->slots_max;
hnp_node->launch_id = node->launch_id;
/* default allocate all the slots - may be modified later
* as a result of filtering actions in mapper
*/
hnp_node->slots_alloc = node->slots;
/* use the local name for our node - don't trust what
* we got from an RM. If requested, store the resolved
* nodename info
*/
if (orte_show_resolved_nodenames) {
/* if the node name is different, store it as an alias */
if (0 != strcmp(node->name, hnp_node->name)) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&hnp_node->alias, node->name);
}
if (NULL != node->alias) {
/* now copy over any aliases that are unique */
for (i=0; NULL != node->alias[i]; i++) {
opal_argv_append_unique_nosize(&hnp_node->alias, node->alias[i]);
}
}
}
/* update the total slots in the job */
jdata->total_slots_alloc += hnp_node->slots;
/* don't keep duplicate copy */
OBJ_RELEASE(node);
} else {
/* insert the object onto the orte_nodes global array */
OPAL_OUTPUT_VERBOSE((5, orte_ras_base.ras_output,
"%s ras:base:node_insert node %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(NULL == node->name) ? "NULL" : node->name));
/* default allocate all the slots - may be modified later
* as a result of filtering actions in mapper
*/
node->slots_alloc = node->slots;
/* insert it into the array */
node->index = opal_pointer_array_add(orte_node_pool, (void*)node);
if (ORTE_SUCCESS > (rc = node->index)) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* update the total slots in the job */
jdata->total_slots_alloc += node->slots;
}
}
return ORTE_SUCCESS;
}
/*
* Sequentially map the ranks according to the placement in the
* specified hostfile
*/
static int orte_rmaps_seq_map(orte_job_t *jdata)
{
orte_job_map_t *map;
orte_app_context_t *app;
int i, n;
orte_std_cntr_t j;
opal_list_item_t *item;
orte_node_t *node, *nd;
seq_node_t *sq, *save=NULL, *seq;;
orte_vpid_t vpid;
orte_std_cntr_t num_nodes;
int rc;
opal_list_t default_seq_list;
opal_list_t node_list, *seq_list, sq_list;
orte_proc_t *proc;
mca_base_component_t *c = &mca_rmaps_seq_component.base_version;
char *hosts, *hstname, *sep, *eptr;
FILE *fp;
#if OPAL_HAVE_HWLOC
opal_hwloc_resource_type_t rtype;
#endif
OPAL_OUTPUT_VERBOSE((1, orte_rmaps_base_framework.framework_output,
"%s rmaps:seq called on job %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(jdata->jobid)));
/* this mapper can only handle initial launch
* when seq mapping is desired - allow
* restarting of failed apps
*/
if (ORTE_FLAG_TEST(jdata, ORTE_JOB_FLAG_RESTART)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: job %s is being restarted - seq cannot map",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
if (NULL != jdata->map->req_mapper) {
if (0 != strcasecmp(jdata->map->req_mapper, c->mca_component_name)) {
/* a mapper has been specified, and it isn't me */
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: job %s not using sequential mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
/* we need to process it */
goto process;
}
if (ORTE_MAPPING_SEQ != ORTE_GET_MAPPING_POLICY(jdata->map->mapping)) {
/* I don't know how to do these - defer */
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: job %s not using seq mapper",
ORTE_JOBID_PRINT(jdata->jobid));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
process:
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: mapping job %s",
ORTE_JOBID_PRINT(jdata->jobid));
/* flag that I did the mapping */
if (NULL != jdata->map->last_mapper) {
free(jdata->map->last_mapper);
}
jdata->map->last_mapper = strdup(c->mca_component_name);
/* convenience def */
map = jdata->map;
/* if there is a default hostfile, go and get its ordered list of nodes */
OBJ_CONSTRUCT(&default_seq_list, opal_list_t);
if (NULL != orte_default_hostfile) {
/* open the file */
fp = fopen(orte_default_hostfile, "r");
if (NULL == fp) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
rc = ORTE_ERR_NOT_FOUND;
goto error;
}
while (NULL != (hstname = orte_getline(fp))) {
if (0 == strlen(hstname)) {
/* blank line - ignore */
continue;
}
sq = OBJ_NEW(seq_node_t);
if (NULL != (sep = strchr(hstname, ' '))) {
*sep = '\0';
sep++;
/* remove any trailing space */
eptr = sep + strlen(sep) - 1;
while (eptr > sep && isspace(*eptr)) {
eptr--;
}
*(eptr+1) = 0;
sq->cpuset = strdup(sep);
}
sq->hostname = strdup(hstname);
opal_list_append(&default_seq_list, &sq->super);
}
fclose(fp);
}
/* start at the beginning... */
vpid = 0;
jdata->num_procs = 0;
if (0 < opal_list_get_size(&default_seq_list)) {
save = (seq_node_t*)opal_list_get_first(&default_seq_list);
}
#if OPAL_HAVE_HWLOC
/* default to LOGICAL processors */
if (orte_get_attribute(&jdata->attributes, ORTE_JOB_PHYSICAL_CPUIDS, NULL, OPAL_BOOL)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: using PHYSICAL processors");
rtype = OPAL_HWLOC_PHYSICAL;
} else {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: using LOGICAL processors");
rtype = OPAL_HWLOC_LOGICAL;
}
#endif
/* initialize all the nodes as not included in this job map */
for (j=0; j < orte_node_pool->size; j++) {
if (NULL != (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, j))) {
ORTE_FLAG_UNSET(node, ORTE_NODE_FLAG_MAPPED);
}
}
/* cycle through the app_contexts, mapping them sequentially */
for(i=0; i < jdata->apps->size; i++) {
if (NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, i))) {
continue;
}
/* dash-host trumps hostfile */
if (orte_get_attribute(&app->attributes, ORTE_APP_DASH_HOST, (void**)&hosts, OPAL_STRING)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: using dash-host nodes on app %s", app->app);
OBJ_CONSTRUCT(&node_list, opal_list_t);
/* dash host entries cannot specify cpusets, so used the std function to retrieve the list */
if (ORTE_SUCCESS != (rc = orte_util_get_ordered_dash_host_list(&node_list, hosts))) {
ORTE_ERROR_LOG(rc);
free(hosts);
goto error;
}
free(hosts);
/* transfer the list to a seq_node_t list */
OBJ_CONSTRUCT(&sq_list, opal_list_t);
while (NULL != (nd = (orte_node_t*)opal_list_remove_first(&node_list))) {
sq = OBJ_NEW(seq_node_t);
sq->hostname = strdup(nd->name);
opal_list_append(&sq_list, &sq->super);
OBJ_RELEASE(nd);
}
OBJ_DESTRUCT(&node_list);
seq_list = &sq_list;
} else if (orte_get_attribute(&app->attributes, ORTE_APP_HOSTFILE, (void**)&hosts, OPAL_STRING)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: using hostfile %s nodes on app %s", hosts, app->app);
OBJ_CONSTRUCT(&sq_list, opal_list_t);
/* open the file */
fp = fopen(hosts, "r");
if (NULL == fp) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
rc = ORTE_ERR_NOT_FOUND;
OBJ_DESTRUCT(&sq_list);
goto error;
}
while (NULL != (hstname = orte_getline(fp))) {
sq = OBJ_NEW(seq_node_t);
if (NULL != (sep = strchr(hstname, ' '))) {
*sep = '\0';
sep++;
/* remove any trailing space */
eptr = sep + strlen(sep) - 1;
while (eptr > sep && isspace(*eptr)) {
eptr--;
}
*(eptr+1) = 0;
sq->cpuset = strdup(sep);
}
sq->hostname = hstname;
opal_list_append(&sq_list, &sq->super);
}
fclose(fp);
free(hosts);
seq_list = &sq_list;
} else if (0 < opal_list_get_size(&default_seq_list)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: using default hostfile nodes on app %s", app->app);
seq_list = &default_seq_list;
} else {
/* can't do anything - no nodes available! */
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
/* check for nolocal and remove the head node, if required */
if (map->mapping & ORTE_MAPPING_NO_USE_LOCAL) {
for (item = opal_list_get_first(seq_list);
item != opal_list_get_end(seq_list);
item = opal_list_get_next(item) ) {
seq = (seq_node_t*)item;
/* need to check ifislocal because the name in the
* hostfile may not have been FQDN, while name returned
* by gethostname may have been (or vice versa)
*/
if (opal_ifislocal(seq->hostname)) {
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: removing head node %s", seq->hostname);
opal_list_remove_item(seq_list, item);
OBJ_RELEASE(item); /* "un-retain" it */
}
}
}
if (NULL == seq_list || 0 == (num_nodes = (orte_std_cntr_t)opal_list_get_size(seq_list))) {
orte_show_help("help-orte-rmaps-base.txt",
"orte-rmaps-base:no-available-resources",
true);
return ORTE_ERR_SILENT;
}
/* if num_procs wasn't specified, set it now */
if (0 == app->num_procs) {
app->num_procs = num_nodes;
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: setting num procs to %s for app %s",
ORTE_VPID_PRINT(app->num_procs), app->app);
} else if (num_nodes < app->num_procs) {
orte_show_help("help-orte-rmaps-base.txt", "seq:not-enough-resources", true,
app->num_procs, num_nodes);
return ORTE_ERR_SILENT;
}
if (seq_list == &default_seq_list) {
sq = save;
} else {
sq = (seq_node_t*)opal_list_get_first(seq_list);
}
for (n=0; n < app->num_procs; n++) {
/* find this node on the global array - this is necessary so
* that our mapping gets saved on that array as the objects
* returned by the hostfile function are -not- on the array
*/
node = NULL;
for (j=0; j < orte_node_pool->size; j++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, j))) {
continue;
}
if (0 == strcmp(sq->hostname, node->name)) {
break;
}
}
if (NULL == node) {
/* wasn't found - that is an error */
orte_show_help("help-orte-rmaps-seq.txt",
"orte-rmaps-seq:resource-not-found",
true, sq->hostname);
rc = ORTE_ERR_SILENT;
goto error;
}
/* ensure the node is in the map */
if (!ORTE_FLAG_TEST(node, ORTE_NODE_FLAG_MAPPED)) {
OBJ_RETAIN(node);
opal_pointer_array_add(map->nodes, node);
jdata->map->num_nodes++;
ORTE_FLAG_SET(node, ORTE_NODE_FLAG_MAPPED);
}
proc = orte_rmaps_base_setup_proc(jdata, node, i);
if ((node->slots < (int)node->num_procs) ||
(0 < node->slots_max && node->slots_max < (int)node->num_procs)) {
if (ORTE_MAPPING_NO_OVERSUBSCRIBE & ORTE_GET_MAPPING_DIRECTIVE(jdata->map->mapping)) {
orte_show_help("help-orte-rmaps-base.txt", "orte-rmaps-base:alloc-error",
true, node->num_procs, app->app);
rc = ORTE_ERR_SILENT;
goto error;
}
/* flag the node as oversubscribed so that sched-yield gets
* properly set
*/
ORTE_FLAG_SET(node, ORTE_NODE_FLAG_OVERSUBSCRIBED);
}
/* assign the vpid */
proc->name.vpid = vpid++;
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: assign proc %s to node %s for app %s",
ORTE_VPID_PRINT(proc->name.vpid), sq->hostname, app->app);
#if OPAL_HAVE_HWLOC
{
/* record the cpuset, if given */
if (NULL != sq->cpuset) {
hwloc_cpuset_t bitmap;
char *cpu_bitmap;
if (NULL == node->topology) {
/* not allowed - for sequential cpusets, we must have
* the topology info
*/
orte_show_help("help-orte-rmaps-base.txt", "rmaps:no-topology", true, node->name);
rc = ORTE_ERR_SILENT;
goto error;
}
/* if we are using hwthreads as cpus and binding to hwthreads, then
* we can just copy the cpuset across as it already specifies things
* at that level */
if (opal_hwloc_use_hwthreads_as_cpus &&
OPAL_BIND_TO_HWTHREAD == OPAL_GET_BINDING_POLICY(opal_hwloc_binding_policy)) {
cpu_bitmap = strdup(sq->cpuset);
} else {
/* setup the bitmap */
bitmap = hwloc_bitmap_alloc();
/* parse the slot_list to find the socket and core */
if (ORTE_SUCCESS != (rc = opal_hwloc_base_slot_list_parse(sq->cpuset, node->topology, rtype, bitmap))) {
ORTE_ERROR_LOG(rc);
hwloc_bitmap_free(bitmap);
goto error;
}
/* note that we cannot set the proc locale to any specific object
* as the slot list may have assigned it to more than one - so
* leave that field NULL
*/
/* set the proc to the specified map */
hwloc_bitmap_list_asprintf(&cpu_bitmap, bitmap);
hwloc_bitmap_free(bitmap);
}
orte_set_attribute(&proc->attributes, ORTE_PROC_CPU_BITMAP, ORTE_ATTR_GLOBAL, cpu_bitmap, OPAL_STRING);
opal_output_verbose(5, orte_rmaps_base_framework.framework_output,
"mca:rmaps:seq: binding proc %s to cpuset %s bitmap %s",
ORTE_VPID_PRINT(proc->name.vpid), sq->cpuset, cpu_bitmap);
/* we are going to bind to cpuset since the user is specifying the cpus */
OPAL_SET_BINDING_POLICY(jdata->map->binding, OPAL_BIND_TO_CPUSET);
/* note that the user specified the mapping */
ORTE_SET_MAPPING_POLICY(jdata->map->mapping, ORTE_MAPPING_BYUSER);
ORTE_SET_MAPPING_DIRECTIVE(jdata->map->mapping, ORTE_MAPPING_GIVEN);
/* cleanup */
free(cpu_bitmap);
} else {
hwloc_obj_t locale;
/* assign the locale - okay for the topo to be null as
* it just means it wasn't returned
*/
if (NULL != node->topology) {
locale = hwloc_get_root_obj(node->topology);
orte_set_attribute(&proc->attributes, ORTE_PROC_HWLOC_LOCALE,
ORTE_ATTR_LOCAL, locale, OPAL_PTR);
}
}
}
#endif
/* add to the jdata proc array */
if (ORTE_SUCCESS != (rc = opal_pointer_array_set_item(jdata->procs, proc->name.vpid, proc))) {
ORTE_ERROR_LOG(rc);
goto error;
}
/* move to next node */
sq = (seq_node_t*)opal_list_get_next(&sq->super);
}
/** track the total number of processes we mapped */
jdata->num_procs += app->num_procs;
/* cleanup the node list if it came from this app_context */
if (seq_list != &default_seq_list) {
OPAL_LIST_DESTRUCT(seq_list);
} else {
save = sq;
}
}
return ORTE_SUCCESS;
error:
OPAL_LIST_DESTRUCT(&default_seq_list);
return rc;
}
static void process_opens(int fd, short args, void *cbdata)
{
orte_dfs_request_t *dfs = (orte_dfs_request_t*)cbdata;
int rc;
opal_buffer_t *buffer;
char *scheme, *host, *filename, *hostname;
orte_process_name_t daemon;
bool found;
orte_vpid_t v;
/* get the scheme to determine if we can process locally or not */
if (NULL == (scheme = opal_uri_get_scheme(dfs->uri))) {
OBJ_RELEASE(dfs);
return;
}
if (0 == strcmp(scheme, "nfs")) {
open_local_file(dfs);
goto complete;
}
if (0 != strcmp(scheme, "file")) {
/* not yet supported */
orte_show_help("orte_dfs_help.txt", "unsupported-filesystem",
true, dfs->uri);
if (NULL != dfs->open_cbfunc) {
dfs->open_cbfunc(-1, dfs->cbdata);
}
goto complete;
}
/* dissect the uri to extract host and filename/path */
if (NULL == (filename = opal_filename_from_uri(dfs->uri, &host))) {
goto complete;
}
/* if the host is our own, then treat it as a local file */
if (NULL == host ||
0 == strcmp(host, orte_process_info.nodename) ||
0 == strcmp(host, "localhost") ||
opal_ifislocal(host)) {
opal_output_verbose(1, orte_dfs_base.output,
"%s file %s on local host",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
filename);
open_local_file(dfs);
goto complete;
}
/* ident the daemon on that host */
daemon.jobid = ORTE_PROC_MY_DAEMON->jobid;
found = false;
for (v=0; v < orte_process_info.num_daemons; v++) {
daemon.vpid = v;
/* fetch the hostname where this daemon is located */
if (ORTE_SUCCESS != (rc = orte_db.fetch_pointer(&daemon, ORTE_DB_HOSTNAME, (void**)&hostname, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto complete;
}
if (0 == strcmp(host, hostname)) {
found = true;
break;
}
}
if (!found) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
goto complete;
}
opal_output_verbose(1, orte_dfs_base.output,
"%s file %s on host %s daemon %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
filename, host, ORTE_NAME_PRINT(&daemon));
/* double-check: if it is our local daemon, then we
* treat this as local
*/
if (daemon.vpid == ORTE_PROC_MY_DAEMON->vpid) {
opal_output_verbose(1, orte_dfs_base.output,
"%s local file %s on same daemon",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
filename);
open_local_file(dfs);
goto complete;
}
/* add this request to our local list so we can
* match it with the returned response when it comes
*/
dfs->id = req_id++;
opal_list_append(&requests, &dfs->super);
/* setup a message for the daemon telling
* them what file we want to access
*/
buffer = OBJ_NEW(opal_buffer_t);
if (OPAL_SUCCESS != (rc = opal_dss.pack(buffer, &dfs->cmd, 1, ORTE_DFS_CMD_T))) {
ORTE_ERROR_LOG(rc);
opal_list_remove_item(&requests, &dfs->super);
goto complete;
}
/* pass the request id */
if (OPAL_SUCCESS != (rc = opal_dss.pack(buffer, &dfs->id, 1, OPAL_UINT64))) {
ORTE_ERROR_LOG(rc);
opal_list_remove_item(&requests, &dfs->super);
goto complete;
}
if (OPAL_SUCCESS != (rc = opal_dss.pack(buffer, &filename, 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
opal_list_remove_item(&requests, &dfs->super);
goto complete;
}
opal_output_verbose(1, orte_dfs_base.output,
"%s sending open file request to %s file %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&daemon),
filename);
/* send it */
if (0 > (rc = orte_rml.send_buffer_nb(&daemon, buffer,
ORTE_RML_TAG_DFS_CMD, 0,
orte_rml_send_callback, NULL))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(buffer);
opal_list_remove_item(&requests, &dfs->super);
goto complete;
}
/* don't release it */
return;
complete:
OBJ_RELEASE(dfs);
}
/* the -host option can always be used in both absolute
* and relative mode, so we have to check for pre-existing
* allocations if we are to use relative node syntax
*/
int orte_util_filter_dash_host_nodes(opal_list_t *nodes,
char** host_argv)
{
opal_list_item_t* item;
bool found;
opal_list_item_t *next;
orte_std_cntr_t i, j, k, len_mapped_node=0;
int rc;
char **mapped_nodes = NULL, **mini_map, *cptr;
orte_node_t *node, **nodepool;
int nodeidx;
int num_empty=0;
opal_list_t keep;
bool want_all_empty = false;
/* if the incoming node list is empty, then there
* is nothing to filter!
*/
if (opal_list_is_empty(nodes)) {
return ORTE_SUCCESS;
}
/* setup for relative node syntax */
nodepool = (orte_node_t**)orte_node_pool->addr;
/* Accumulate all of the host name mappings */
for (j = 0; j < opal_argv_count(host_argv); ++j) {
mini_map = opal_argv_split(host_argv[j], ',');
for (k = 0; NULL != mini_map[k]; ++k) {
if ('+' == mini_map[k][0]) {
/* see if we specified empty nodes */
if ('e' == mini_map[k][1] ||
'E' == mini_map[k][1]) {
/* request for empty nodes - do they want
* all of them?
*/
if (NULL != (cptr = strchr(mini_map[k], ':'))) {
/* the colon indicates a specific # are requested */
cptr++; /* step past : */
/* put a marker into the list */
cptr--;
*cptr = '*';
opal_argv_append_nosize(&mapped_nodes, cptr);
} else {
/* add a marker to the list */
opal_argv_append_nosize(&mapped_nodes, "*");
want_all_empty = true;
}
} else if ('n' == mini_map[k][1] ||
'N' == mini_map[k][1]) {
/* they want a specific relative node #, so
* look it up on global pool
*/
nodeidx = strtol(&mini_map[k][2], NULL, 10);
if (nodeidx < 0 ||
nodeidx > (int)orte_node_pool->size) {
/* this is an error */
orte_show_help("help-dash-host.txt", "dash-host:relative-node-out-of-bounds",
true, nodeidx, mini_map[k]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
/* if the HNP is not allocated, then we need to
* adjust the index as the node pool is offset
* by one
*/
if (!orte_hnp_is_allocated) {
nodeidx++;
}
/* see if that location is filled */
if (NULL == nodepool[nodeidx]) {
/* this is an error */
orte_show_help("help-dash-host.txt", "dash-host:relative-node-not-found",
true, nodeidx, mini_map[k]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
/* add this node to the list */
opal_argv_append_nosize(&mapped_nodes, nodepool[nodeidx]->name);
} else {
/* invalid relative node syntax */
orte_show_help("help-dash-host.txt", "dash-host:invalid-relative-node-syntax",
true, mini_map[k]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
} else { /* non-relative syntax - add to list */
if (OPAL_SUCCESS != (rc = opal_argv_append_nosize(&mapped_nodes,
mini_map[k]))) {
goto cleanup;
}
}
}
opal_argv_free(mini_map);
}
/* Did we find anything? If not, then do nothing */
if (NULL == mapped_nodes && 0 == num_empty) {
return ORTE_SUCCESS;
}
/* we found some info - filter what is on the list...
* i.e., go through the list and remove any nodes that
* were -not- included on the -host list.
*
* NOTE: The following logic is based on knowing that
* any node can only be included on the incoming
* nodes list ONCE.
*/
len_mapped_node = opal_argv_count(mapped_nodes);
/* setup a working list so we can put the final list
* of nodes in order. This way, if the user specifies a
* set of nodes, we will use them in the order in which
* they were specifed. Note that empty node requests
* will always be appended to the end
*/
OBJ_CONSTRUCT(&keep, opal_list_t);
for (i = 0; i < len_mapped_node; ++i) {
/* check if we are supposed to add some number of empty
* nodes here
*/
if ('*' == mapped_nodes[i][0]) {
/* if there is a number after the '*', then we are
* to insert a specific # of nodes
*/
if ('\0' == mapped_nodes[i][1]) {
/* take all empty nodes from the list */
num_empty = INT_MAX;
} else {
/* extract number of nodes to take */
num_empty = strtol(&mapped_nodes[i][1], NULL, 10);
}
/* search for empty nodes and take them */
item = opal_list_get_first(nodes);
while (0 < num_empty && item != opal_list_get_end(nodes)) {
next = opal_list_get_next(item); /* save this position */
node = (orte_node_t*)item;
/* see if this node is empty */
if (0 == node->slots_inuse) {
/* check to see if it is specified later */
for (j=i+1; j < len_mapped_node; j++) {
if (0 == strcmp(mapped_nodes[j], node->name)) {
/* specified later - skip this one */
goto skipnode;
}
}
/* remove item from list */
opal_list_remove_item(nodes, item);
/* xfer to keep list */
opal_list_append(&keep, item);
--num_empty;
}
skipnode:
item = next;
}
} else {
/* we are looking for a specific node on the list
* we have a match if one of two conditions is met:
* 1. the node_name and mapped_nodes directly match
* 2. the node_name is the local system name AND
* either the mapped_node is "localhost" OR it
* is a local interface as found by opal_ifislocal
*/
item = opal_list_get_first(nodes);
while (item != opal_list_get_end(nodes)) {
next = opal_list_get_next(item); /* save this position */
node = (orte_node_t*)item;
/* search -host list to see if this one is found */
found = false;
if ((0 == strcmp(node->name, mapped_nodes[i]) ||
(0 == strcmp(node->name, orte_process_info.nodename) &&
(0 == strcmp(mapped_nodes[i], "localhost") || opal_ifislocal(mapped_nodes[i]))))) {
/* remove item from list */
opal_list_remove_item(nodes, item);
/* xfer to keep list */
opal_list_append(&keep, item);
break;
}
item = next;
}
}
/* done with the mapped entry */
free(mapped_nodes[i]);
mapped_nodes[i] = NULL;
}
/* was something specified that was -not- found? */
for (i=0; i < len_mapped_node; i++) {
if (NULL != mapped_nodes[i]) {
orte_show_help("help-dash-host.txt", "not-all-mapped-alloc",
true, mapped_nodes[i]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
}
/* clear the rest of the nodes list */
while (NULL != (item = opal_list_remove_first(nodes))) {
OBJ_RELEASE(item);
}
/* the nodes list has been cleared - rebuild it in order */
while (NULL != (item = opal_list_remove_first(&keep))) {
opal_list_append(nodes, item);
}
/* did they ask for more than we could provide */
if (!want_all_empty && 0 < num_empty) {
orte_show_help("help-dash-host.txt", "dash-host:not-enough-empty",
true, num_empty);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
rc = ORTE_SUCCESS;
/* done filtering existing list */
cleanup:
for (i=0; i < len_mapped_node; i++) {
if (NULL != mapped_nodes[i]) {
free(mapped_nodes[i]);
mapped_nodes[i] = NULL;
}
}
if (NULL != mapped_nodes) {
free(mapped_nodes);
}
return rc;
}
static int rte_init(void)
{
int ret;
char *error = NULL;
char **nodes = NULL, **ppnlist = NULL;
char *envar;
int32_t jobfam;
int i, j, *ppn;
orte_nid_t *node;
orte_jmap_t *jmap;
orte_pmap_t *pmap;
orte_vpid_t vpid;
bool byslot;
/* run the prolog */
if (ORTE_SUCCESS != (ret = orte_ess_base_std_prolog())) {
error = "orte_ess_base_std_prolog";
goto error;
}
/* Only application procs can use this module. Since we
* were directly launched by someone, we need to bootstrap
* our own global info so we can startup.
*/
/* ensure that static ports were assigned - otherwise, we cant
* work since we won't know how to talk to anyone else
*/
if (NULL == getenv("OMPI_MCA_oob_tcp_static_ports") &&
NULL == getenv("OMPI_MCA_oob_tcp_static_ports_v6")) {
error = "static ports were not assigned";
goto error;
}
/* declare ourselves to be standalone - i.e., not launched by orted */
orte_standalone_operation = true;
/* extract a jobid from the environment - can be totally
* arbitrary. if one isn't provided, just fake it
*/
if (NULL != (envar = getenv("OMPI_MCA_orte_jobid"))) {
jobfam = strtol(envar, NULL, 10);
} else {
jobfam = 1;
}
ORTE_PROC_MY_NAME->jobid = ORTE_CONSTRUCT_LOCAL_JOBID(0, jobfam);
/* extract a rank from the environment */
if (NULL == (envar = getenv("OMPI_MCA_orte_rank"))) {
error = "could not get process rank";
goto error;
}
ORTE_PROC_MY_NAME->vpid = strtol(envar, NULL, 10);
ORTE_EPOCH_SET(ORTE_PROC_MY_NAME->epoch,ORTE_EPOCH_MIN);
OPAL_OUTPUT_VERBOSE((1, orte_ess_base_output,
"%s completed name definition",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* get the number of procs in this job */
if (NULL == (envar = getenv("OMPI_MCA_orte_num_procs"))) {
error = "could not get number of processes in job";
goto error;
}
orte_process_info.num_procs = strtol(envar, NULL, 10);
if (orte_process_info.max_procs < orte_process_info.num_procs) {
orte_process_info.max_procs = orte_process_info.num_procs;
}
/* set the app_num so that MPI attributes get set correctly */
orte_process_info.app_num = 1;
/* get the list of nodes */
if (NULL == (envar = getenv("OMPI_MCA_orte_nodes"))) {
error = "could not get list of nodes";
goto error;
}
/* break this down */
nodes = opal_argv_split(envar, ',');
orte_process_info.num_nodes = opal_argv_count(nodes);
/* get the ppn */
if (NULL == (envar = getenv("OMPI_MCA_orte_ppn"))) {
error = "could not get ppn";
goto error;
}
ppnlist = opal_argv_split(envar, ',');
ppn = (int*)malloc(orte_process_info.num_nodes * sizeof(int));
if (1 == opal_argv_count(ppnlist)) {
/* constant ppn */
j = strtol(ppnlist[0], NULL, 10);
for (i=0; i < orte_process_info.num_nodes; i++) {
ppn[i] = j;
}
} else {
for (i=0; i < orte_process_info.num_nodes; i++) {
ppn[i] = strtol(ppnlist[i], NULL, 10);
}
}
opal_argv_free(ppnlist);
/* get the mapping mode - default to byslot */
byslot = true;
if (NULL != (envar = getenv("OMPI_MCA_mapping")) &&
0 == strcmp(envar, "bynode")) {
byslot = false;
}
/* setup the nidmap arrays */
if (ORTE_SUCCESS != (ret = orte_util_nidmap_init(NULL))) {
ORTE_ERROR_LOG(ret);
error = "orte_util_nidmap_init";
goto error;
}
/* set the size of the nidmap storage so we minimize realloc's */
if (ORTE_SUCCESS != (ret = opal_pointer_array_set_size(&orte_nidmap, orte_process_info.num_nodes))) {
error = "could not set pointer array size for nidmap";
goto error;
}
/* construct the nidmap */
for (i=0; i < orte_process_info.num_nodes; i++) {
node = OBJ_NEW(orte_nid_t);
if (0 == strcmp(nodes[i], orte_process_info.nodename) || opal_ifislocal(nodes[i])) {
node->name = strdup(orte_process_info.nodename);
} else {
node->name = strdup(nodes[i]);
}
node->daemon = i;
node->index = i;
opal_pointer_array_set_item(&orte_nidmap, i, node);
}
opal_argv_free(nodes);
/* create a job map for this job */
jmap = OBJ_NEW(orte_jmap_t);
jmap->job = ORTE_PROC_MY_NAME->jobid;
opal_pointer_array_add(&orte_jobmap, jmap);
/* update the num procs */
jmap->num_procs = orte_process_info.num_procs;
/* set the size of the pidmap storage so we minimize realloc's */
if (ORTE_SUCCESS != (ret = opal_pointer_array_set_size(&jmap->pmap, jmap->num_procs))) {
ORTE_ERROR_LOG(ret);
error = "could not set pointer array size for pidmap";
goto error;
}
/* construct the pidmap */
if (byslot) {
vpid = 0;
for (i=0; i < orte_process_info.num_nodes; i++) {
node = (orte_nid_t*)opal_pointer_array_get_item(&orte_nidmap, i);
/* for each node, cycle through the ppn */
for (j=0; j < ppn[i]; j++) {
pmap = OBJ_NEW(orte_pmap_t);
pmap->node = i;
pmap->local_rank = j;
pmap->node_rank = j;
if (ORTE_SUCCESS != (ret = opal_pointer_array_set_item(&jmap->pmap, vpid, pmap))) {
ORTE_ERROR_LOG(ret);
error = "could not set pmap values";
goto error;
}
/* if this is me, then define the daemon's vpid to
* be the node number
*/
if (vpid == ORTE_PROC_MY_NAME->vpid) {
ORTE_PROC_MY_DAEMON->jobid = 0;
ORTE_PROC_MY_DAEMON->vpid = i;
ORTE_EPOCH_SET(ORTE_PROC_MY_DAEMON->epoch,ORTE_PROC_MY_NAME->epoch);
}
OPAL_OUTPUT_VERBOSE((1, orte_ess_base_output,
"%s node %d name %s rank %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(int) node->index, node->name, ORTE_VPID_PRINT(vpid)));
vpid++;
}
}
} else {
/* cycle across the nodes */
vpid = 0;
while (vpid < orte_process_info.num_procs) {
for (i=0; i < orte_process_info.num_nodes && vpid < orte_process_info.num_procs; i++) {
node = (orte_nid_t*)opal_pointer_array_get_item(&orte_nidmap, i);
if (0 < ppn[i]) {
pmap = OBJ_NEW(orte_pmap_t);
pmap->node = i;
pmap->local_rank = ppn[i]-1;
pmap->node_rank = ppn[i]-1;
if (ORTE_SUCCESS != (ret = opal_pointer_array_set_item(&jmap->pmap, vpid, pmap))) {
ORTE_ERROR_LOG(ret);
error = "could not set pmap values";
goto error;
}
/* if this is me, then define the daemon's vpid to
* be the node number
*/
if (vpid == ORTE_PROC_MY_NAME->vpid) {
ORTE_PROC_MY_DAEMON->jobid = 0;
ORTE_PROC_MY_DAEMON->vpid = i;
ORTE_EPOCH_SET(ORTE_PROC_MY_DAEMON->epoch,ORTE_PROC_MY_NAME->epoch);
}
OPAL_OUTPUT_VERBOSE((1, orte_ess_base_output,
"%s node %d name %s rank %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(int) node->index, node->name, (int)vpid));
vpid++;
--ppn[i];
}
}
}
}
free(ppn);
/* ensure we pick the correct critical components */
putenv("OMPI_MCA_grpcomm=hier");
putenv("OMPI_MCA_routed=direct");
/* use the default procedure to finish my setup */
if (ORTE_SUCCESS != (ret = orte_ess_base_app_setup())) {
ORTE_ERROR_LOG(ret);
error = "orte_ess_base_app_setup";
goto error;
}
if (0 < opal_output_get_verbosity(orte_ess_base_output)) {
orte_nidmap_dump();
orte_jobmap_dump();
}
return ORTE_SUCCESS;
error:
orte_show_help("help-orte-runtime.txt",
"orte_init:startup:internal-failure",
true, error, ORTE_ERROR_NAME(ret), ret);
return ret;
}
/* we can only enter this routine if no other allocation
* was found, so we only need to know that finding any
* relative node syntax should generate an immediate error
*/
int orte_util_add_dash_host_nodes(opal_list_t *nodes,
bool *override_oversubscribed,
char ** host_argv)
{
opal_list_item_t* item;
orte_std_cntr_t i, j, k;
int rc;
char **mapped_nodes = NULL, **mini_map;
orte_node_t *node;
/* Accumulate all of the host name mappings */
for (j = 0; j < opal_argv_count(host_argv); ++j) {
mini_map = opal_argv_split(host_argv[j], ',');
if (mapped_nodes == NULL) {
mapped_nodes = mini_map;
} else {
for (k = 0; NULL != mini_map[k]; ++k) {
rc = opal_argv_append_nosize(&mapped_nodes,
mini_map[k]);
if (OPAL_SUCCESS != rc) {
goto cleanup;
}
}
opal_argv_free(mini_map);
}
}
/* Did we find anything? If not, then do nothing */
if (NULL == mapped_nodes) {
return ORTE_SUCCESS;
}
/* go through the names found and
add them to the host list. If they're not unique, then
bump the slots count for each duplicate */
for (i = 0; NULL != mapped_nodes[i]; ++i) {
/* if the specified node contains a relative node syntax,
* this is an error
*/
if ('+' == mapped_nodes[i][0]) {
orte_show_help("help-dash-host.txt", "dash-host:relative-syntax",
true, mapped_nodes[i]);
rc = ORTE_ERR_SILENT;
goto cleanup;
}
/* see if the node is already on the list */
for (item = opal_list_get_first(nodes);
item != opal_list_get_end(nodes);
item = opal_list_get_next(item)) {
node = (orte_node_t*) item;
if (0 == strcmp(node->name, mapped_nodes[i]) ||
(0 == strcmp(node->name, orte_process_info.nodename) &&
(0 == strcmp(mapped_nodes[i], "localhost") || opal_ifislocal(mapped_nodes[i])))) {
++node->slots;
break;
}
}
/* If we didn't find it, add it to the list */
if (item == opal_list_get_end(nodes)) {
node = OBJ_NEW(orte_node_t);
if (NULL == node) {
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* check to see if this is a local name */
if (0 == strcmp(mapped_nodes[i], "localhost") ||
opal_ifislocal(mapped_nodes[i])) {
/* it is local, so use the local nodename to avoid
* later confusion
*/
if (orte_show_resolved_nodenames &&
0 != strcmp(mapped_nodes[i], orte_process_info.nodename)) {
/* add to list of aliases for this node - only add if unique */
opal_argv_append_unique_nosize(&node->alias, mapped_nodes[i]);
}
node->name = strdup(orte_process_info.nodename);
} else {
/* not local - use the given name */
node->name = strdup(mapped_nodes[i]);
}
node->state = ORTE_NODE_STATE_UP;
node->slots_inuse = 0;
node->slots_max = 0;
node->slots = 1;
/* indicate that ORTE should override any oversubscribed conditions
* based on local hardware limits since the user (a) might not have
* provided us any info on the #slots for a node, and (b) the user
* might have been wrong! If we don't check the number of local physical
* processors, then we could be too aggressive on our sched_yield setting
* and cause performance problems.
*/
*override_oversubscribed = true;
opal_list_append(nodes, &node->super);
}
}
rc = ORTE_SUCCESS;
cleanup:
if (NULL != mapped_nodes) {
opal_argv_free(mapped_nodes);
}
return rc;
}
/*
* Note that this routine must be called with the lock on the process
* already held. Insert a btl instance into the proc array and assign
* it an address.
*/
int mca_btl_tcp2_proc_insert( mca_btl_tcp2_proc_t* btl_proc,
mca_btl_base_endpoint_t* btl_endpoint )
{
struct sockaddr_storage endpoint_addr_ss;
unsigned int perm_size;
int rc, *a = NULL;
size_t i, j;
#ifndef WORDS_BIGENDIAN
/* if we are little endian and our peer is not so lucky, then we
need to put all information sent to him in big endian (aka
Network Byte Order) and expect all information received to
be in NBO. Since big endian machines always send and receive
in NBO, we don't care so much about that case. */
if (btl_proc->proc_ompi->proc_arch & OPAL_ARCH_ISBIGENDIAN) {
btl_endpoint->endpoint_nbo = true;
}
#endif
/* insert into endpoint array */
btl_endpoint->endpoint_proc = btl_proc;
btl_proc->proc_endpoints[btl_proc->proc_endpoint_count++] = btl_endpoint;
/* sanity checks */
if( NULL == local_interfaces ) {
if( NULL == mca_btl_tcp2_retrieve_local_interfaces() )
return OMPI_ERR_OUT_OF_RESOURCE;
}
if( 0 == num_local_interfaces ) {
return OMPI_ERR_UNREACH;
}
if( NULL == peer_interfaces ) {
max_peer_interfaces = max_local_interfaces;
peer_interfaces = (mca_btl_tcp2_interface_t**)malloc( max_peer_interfaces * sizeof(mca_btl_tcp2_interface_t*) );
}
num_peer_interfaces = 0;
memset(peer_kindex_to_index, -1, sizeof(int)*MAX_KERNEL_INTERFACE_INDEX);
memset(peer_interfaces, 0, max_peer_interfaces * sizeof(mca_btl_tcp2_interface_t*));
/*
* identify all kernel interfaces and the associated addresses of
* the peer
*/
for( i = 0; i < btl_proc->proc_addr_count; i++ ) {
int index;
mca_btl_tcp2_addr_t* endpoint_addr = btl_proc->proc_addrs + i;
mca_btl_tcp2_proc_tosocks (endpoint_addr, &endpoint_addr_ss);
index = peer_kindex_to_index[endpoint_addr->addr_ifkindex];
if(-1 == index) {
index = num_peer_interfaces++;
peer_kindex_to_index[endpoint_addr->addr_ifkindex] = index;
if( num_peer_interfaces == max_peer_interfaces ) {
max_peer_interfaces <<= 1;
peer_interfaces = (mca_btl_tcp2_interface_t**)realloc( peer_interfaces,
max_peer_interfaces * sizeof(mca_btl_tcp2_interface_t*) );
if( NULL == peer_interfaces )
return OMPI_ERR_OUT_OF_RESOURCE;
}
peer_interfaces[index] = (mca_btl_tcp2_interface_t *) malloc(sizeof(mca_btl_tcp2_interface_t));
mca_btl_tcp2_initialise_interface(peer_interfaces[index],
endpoint_addr->addr_ifkindex, index);
}
/*
* in case one of the peer addresses is already in use,
* mark the complete peer interface as 'not available'
*/
if(endpoint_addr->addr_inuse) {
peer_interfaces[index]->inuse = 1;
}
switch(endpoint_addr_ss.ss_family) {
case AF_INET:
peer_interfaces[index]->ipv4_address = (struct sockaddr_storage*) malloc(sizeof(endpoint_addr_ss));
peer_interfaces[index]->ipv4_endpoint_addr = endpoint_addr;
memcpy(peer_interfaces[index]->ipv4_address,
&endpoint_addr_ss, sizeof(endpoint_addr_ss));
break;
case AF_INET6:
peer_interfaces[index]->ipv6_address = (struct sockaddr_storage*) malloc(sizeof(endpoint_addr_ss));
peer_interfaces[index]->ipv6_endpoint_addr = endpoint_addr;
memcpy(peer_interfaces[index]->ipv6_address,
&endpoint_addr_ss, sizeof(endpoint_addr_ss));
break;
default:
opal_output(0, "unknown address family for tcp: %d\n",
endpoint_addr_ss.ss_family);
/*
* return OMPI_UNREACH or some error, as this is not
* good
*/
}
}
/*
* assign weights to each possible pair of interfaces
*/
perm_size = num_local_interfaces;
if(num_peer_interfaces > perm_size) {
perm_size = num_peer_interfaces;
}
weights = (enum mca_btl_tcp2_connection_quality**) malloc(perm_size
* sizeof(enum mca_btl_tcp2_connection_quality*));
best_addr = (mca_btl_tcp2_addr_t ***) malloc(perm_size
* sizeof(mca_btl_tcp2_addr_t **));
for(i = 0; i < perm_size; ++i) {
weights[i] = (enum mca_btl_tcp2_connection_quality*) malloc(perm_size *
sizeof(enum mca_btl_tcp2_connection_quality));
memset(weights[i], 0, perm_size * sizeof(enum mca_btl_tcp2_connection_quality));
best_addr[i] = (mca_btl_tcp2_addr_t **) malloc(perm_size *
sizeof(mca_btl_tcp2_addr_t *));
memset(best_addr[i], 0, perm_size * sizeof(mca_btl_tcp2_addr_t *));
}
for(i=0; i<num_local_interfaces; ++i) {
for(j=0; j<num_peer_interfaces; ++j) {
/* initially, assume no connection is possible */
weights[i][j] = CQ_NO_CONNECTION;
/* check state of ipv4 address pair */
if(NULL != local_interfaces[i]->ipv4_address &&
NULL != peer_interfaces[j]->ipv4_address) {
/* check for loopback */
if ((opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv4_address)
&& !opal_net_islocalhost((struct sockaddr *)peer_interfaces[j]->ipv4_address))
|| (opal_net_islocalhost((struct sockaddr *)peer_interfaces[j]->ipv4_address)
&& !opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv4_address))
|| (opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv4_address)
&& !opal_ifislocal(btl_proc->proc_ompi->proc_hostname))) {
/* No connection is possible on these interfaces */
/* check for RFC1918 */
} else if(opal_net_addr_isipv4public((struct sockaddr*) local_interfaces[i]->ipv4_address)
&& opal_net_addr_isipv4public((struct sockaddr*)
peer_interfaces[j]->ipv4_address)) {
if(opal_net_samenetwork((struct sockaddr*) local_interfaces[i]->ipv4_address,
(struct sockaddr*) peer_interfaces[j]->ipv4_address,
local_interfaces[i]->ipv4_netmask)) {
weights[i][j] = CQ_PUBLIC_SAME_NETWORK;
} else {
weights[i][j] = CQ_PUBLIC_DIFFERENT_NETWORK;
}
best_addr[i][j] = peer_interfaces[j]->ipv4_endpoint_addr;
continue;
} else {
if(opal_net_samenetwork((struct sockaddr*) local_interfaces[i]->ipv4_address,
(struct sockaddr*) peer_interfaces[j]->ipv4_address,
local_interfaces[i]->ipv4_netmask)) {
weights[i][j] = CQ_PRIVATE_SAME_NETWORK;
} else {
weights[i][j] = CQ_PRIVATE_DIFFERENT_NETWORK;
}
best_addr[i][j] = peer_interfaces[j]->ipv4_endpoint_addr;
}
}
/* check state of ipv6 address pair - ipv6 is always public,
* since link-local addresses are skipped in opal_ifinit()
*/
if(NULL != local_interfaces[i]->ipv6_address &&
NULL != peer_interfaces[j]->ipv6_address) {
/* check for loopback */
if ((opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv6_address)
&& !opal_net_islocalhost((struct sockaddr *)peer_interfaces[j]->ipv6_address))
|| (opal_net_islocalhost((struct sockaddr *)peer_interfaces[j]->ipv6_address)
&& !opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv6_address))
|| (opal_net_islocalhost((struct sockaddr *)local_interfaces[i]->ipv6_address)
&& !opal_ifislocal(btl_proc->proc_ompi->proc_hostname))) {
/* No connection is possible on these interfaces */
} else if(opal_net_samenetwork((struct sockaddr*) local_interfaces[i]->ipv6_address,
(struct sockaddr*) peer_interfaces[j]->ipv6_address,
local_interfaces[i]->ipv6_netmask)) {
weights[i][j] = CQ_PUBLIC_SAME_NETWORK;
} else {
weights[i][j] = CQ_PUBLIC_DIFFERENT_NETWORK;
}
best_addr[i][j] = peer_interfaces[j]->ipv6_endpoint_addr;
}
} /* for each peer interface */
} /* for each local interface */
/*
* determine the size of the set to permute (max number of
* interfaces
*/
best_assignment = (unsigned int *) malloc (perm_size * sizeof(int));
a = (int *) malloc(perm_size * sizeof(int));
if (NULL == a) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
/* Can only find the best set of connections when the number of
* interfaces is not too big. When it gets larger, we fall back
* to a simpler and faster (and not as optimal) algorithm.
* See ticket https://svn.open-mpi.org/trac/ompi/ticket/2031
* for more details about this issue. */
if (perm_size <= MAX_PERMUTATION_INTERFACES) {
memset(a, 0, perm_size * sizeof(int));
max_assignment_cardinality = -1;
max_assignment_weight = -1;
visit(0, -1, perm_size, a);
rc = OMPI_ERR_UNREACH;
for(i = 0; i < perm_size; ++i) {
if(best_assignment[i] > num_peer_interfaces
|| weights[i][best_assignment[i]] == CQ_NO_CONNECTION
|| peer_interfaces[best_assignment[i]]->inuse
|| NULL == peer_interfaces[best_assignment[i]]) {
continue;
}
peer_interfaces[best_assignment[i]]->inuse++;
btl_endpoint->endpoint_addr = best_addr[i][best_assignment[i]];
btl_endpoint->endpoint_addr->addr_inuse++;
rc = OMPI_SUCCESS;
break;
}
} else {
enum mca_btl_tcp2_connection_quality max;
int i_max = 0, j_max = 0;
/* Find the best connection that is not in use. Save away
* the indices of the best location. */
max = CQ_NO_CONNECTION;
for(i=0; i<num_local_interfaces; ++i) {
for(j=0; j<num_peer_interfaces; ++j) {
if (!peer_interfaces[j]->inuse) {
if (weights[i][j] > max) {
max = weights[i][j];
i_max = i;
j_max = j;
}
}
}
}
/* Now see if there is a some type of connection available. */
rc = OMPI_ERR_UNREACH;
if (CQ_NO_CONNECTION != max) {
peer_interfaces[j_max]->inuse++;
btl_endpoint->endpoint_addr = best_addr[i_max][j_max];
btl_endpoint->endpoint_addr->addr_inuse++;
rc = OMPI_SUCCESS;
}
}
for(i = 0; i < perm_size; ++i) {
free(weights[i]);
free(best_addr[i]);
}
for(i = 0; i < num_peer_interfaces; ++i) {
if(NULL != peer_interfaces[i]->ipv4_address) {
free(peer_interfaces[i]->ipv4_address);
}
if(NULL != peer_interfaces[i]->ipv6_address) {
free(peer_interfaces[i]->ipv6_address);
}
free(peer_interfaces[i]);
}
free(peer_interfaces);
peer_interfaces = NULL;
max_peer_interfaces = 0;
for(i = 0; i < num_local_interfaces; ++i) {
if(NULL != local_interfaces[i]->ipv4_address) {
free(local_interfaces[i]->ipv4_address);
}
if(NULL != local_interfaces[i]->ipv6_address) {
free(local_interfaces[i]->ipv6_address);
}
free(local_interfaces[i]);
}
free(local_interfaces);
local_interfaces = NULL;
max_local_interfaces = 0;
free(weights);
free(best_addr);
free(best_assignment);
free(a);
return rc;
}