int bproc_test_init(const char *nstr) {
int i;
struct bproc_node_set_t ns;
if (bproc_nodelist(&ns) == -1) {
fprintf(stderr, "bproc_nodelist: %s\n", bproc_strerror(errno));
fprintf(stderr, "Failed to read node list, using front end only.\n");
nnodes = 0;
return 0;
}
if (!nstr)
nstr = getenv("NODES");
if (nstr) {
/* Get the node set from the environment */
struct bproc_node_set_t ns1;
if (bproc_nodefilter(&ns1, &ns, nstr)) {
fprintf(stderr, "Invalid node set: %s\n", nstr);
return -1;
}
nnodes = 0;
for (i=0; i < ns1.size && nnodes < BPROC_TEST_NODES_MAX; i++) {
if (bproc_access(ns1.node[i].node, 1) == 0)
nodes[nnodes++] = ns1.node[i].node;
else
fprintf(stderr, "bproc_test: Ignoring user specified node %d "
"- node is not accessible.\n", ns1.node[i].node);
}
bproc_nodeset_free(&ns1);
} else {
/* Find a nodeset automatically */
nnodes = 0;
for (i=0; i < ns.size && nnodes < BPROC_TEST_NODES_MAX; i++) {
if (bproc_access(ns.node[i].node, 1) == 0)
nodes[nnodes++] = ns.node[i].node;
}
}
/* Find an invalid node number */
for (i=0; i < ns.size; i++) {
if (node_inv <= ns.node[i].node)
node_inv = ns.node[i].node + 1;
}
bproc_nodeset_free(&ns);
printf("bproc_test: node_set = -1");
for (i=0; i < nnodes; i++)
printf(" %d", nodes[i]);
printf("\n");
printf("bproc_test: invalid node = %d\n", node_inv);
return 0;
}
static int orte_ras_bjs_discover(
opal_list_t* nodelist,
orte_app_context_t** context,
size_t num_context)
{
char* nodes;
char* ptr;
opal_list_item_t* item;
opal_list_t new_nodes;
int rc;
/* query the nodelist from the registry */
if(ORTE_SUCCESS != (rc = orte_ras_base_node_query(nodelist))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* validate that any user supplied nodes actually exist, etc. */
item = opal_list_get_first(nodelist);
while(item != opal_list_get_end(nodelist)) {
opal_list_item_t* next = opal_list_get_next(item);
int node_num;
orte_ras_node_t* node = (orte_ras_node_t*)item;
if(ORTE_SUCCESS != orte_ras_bjs_node_resolve(node->node_name, &node_num)) {
opal_list_remove_item(nodelist,item);
OBJ_DESTRUCT(item);
item = next;
continue;
}
if(orte_ras_bjs_node_state(node_num) != ORTE_NODE_STATE_UP) {
opal_list_remove_item(nodelist,item);
OBJ_DESTRUCT(item);
item = next;
continue;
}
if(bproc_access(node_num, BPROC_X_OK) != 0) {
opal_list_remove_item(nodelist,item);
OBJ_DESTRUCT(item);
item = next;
continue;
}
/* try and determine the number of available slots */
if(node->node_slots == 0) {
node->node_slots = orte_ras_bjs_node_slots(node->node_name);
}
item = next;
}
/* parse the node list and check node status/access */
nodes = getenv("NODES");
if (NULL == nodes) {
return ORTE_ERR_NOT_AVAILABLE;
}
OBJ_CONSTRUCT(&new_nodes, opal_list_t);
while(NULL != (ptr = strsep(&nodes,","))) {
orte_ras_node_t *node;
orte_node_state_t node_state;
int node_num;
/* is this node already in the list */
for(item = opal_list_get_first(nodelist);
item != opal_list_get_end(nodelist);
item = opal_list_get_next(item)) {
node = (orte_ras_node_t*)item;
if(strcmp(node->node_name, ptr) == 0)
break;
}
if(item != opal_list_get_end(nodelist))
continue;
if(sscanf(ptr, "%d", &node_num) != 1) {
continue;
}
if(ORTE_NODE_STATE_UP != (node_state = orte_ras_bjs_node_state(node_num))) {
opal_output(0, "error: a specified node (%d) is not up.\n", node_num);
rc = ORTE_ERROR;
goto cleanup;
}
if(bproc_access(node_num, BPROC_X_OK) != 0) {
opal_output(0, "error: a specified node (%d) is not accessible.\n", node_num);
rc = ORTE_ERROR;
goto cleanup;
}
/* create a new node entry */
node = OBJ_NEW(orte_ras_node_t);
node->node_name = strdup(ptr);
node->node_state = node_state;
node->node_slots = orte_ras_bjs_node_slots(node->node_name);
opal_list_append(&new_nodes, &node->super);
}
/* add any newly discovered nodes to the registry */
if(opal_list_get_size(&new_nodes)) {
rc = orte_ras_base_node_insert(&new_nodes);
if(ORTE_SUCCESS != rc) {
ORTE_ERROR_LOG(rc);
}
}
/* append them to the nodelist */
while(NULL != (item = opal_list_remove_first(&new_nodes)))
opal_list_append(nodelist, item);
cleanup:
OBJ_DESTRUCT(&new_nodes);
return rc;
}