/* * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana * University Research and Technology * Corporation. All rights reserved. * Copyright (c) 2004-2008 The University of Tennessee and The University * of Tennessee Research Foundation. All rights * reserved. * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, * University of Stuttgart. All rights reserved. * Copyright (c) 2004-2005 The Regents of the University of California. * All rights reserved. * Copyright (c) 2007 Los Alamos National Security, LLC. All rights * reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ */ #include "orte_config.h" #include "orte/constants.h" #ifdef HAVE_UNISTD_H #include #endif #include #include #include #include "opal/class/opal_list.h" #include "opal/util/argv.h" #include "opal/util/output.h" #include "opal/mca/mca.h" #include "opal/mca/base/base.h" #include "opal/util/if.h" #include "opal/mca/installdirs/installdirs.h" #include "orte/util/show_help.h" #include "orte/util/proc_info.h" #include "orte/util/name_fns.h" #include "orte/mca/errmgr/errmgr.h" #include "orte/mca/ras/ras_types.h" #include "orte/runtime/orte_globals.h" #include "orte/util/hostfile/hostfile_lex.h" #include "orte/util/hostfile/hostfile.h" static const char *cur_hostfile_name = NULL; static void hostfile_parse_error(int token) { switch (token) { case ORTE_HOSTFILE_STRING: orte_show_help("help-hostfile.txt", "parse_error_string", true, cur_hostfile_name, orte_util_hostfile_line, token, orte_util_hostfile_value.sval); break; case ORTE_HOSTFILE_IPV4: case ORTE_HOSTFILE_IPV6: case ORTE_HOSTFILE_INT: orte_show_help("help-hostfile.txt", "parse_error_int", true, cur_hostfile_name, orte_util_hostfile_line, token, orte_util_hostfile_value.ival); break; default: orte_show_help("help-hostfile.txt", "parse_error", true, cur_hostfile_name, orte_util_hostfile_line, token ); break; } } /** * Return the integer following an = (actually may only return positive ints) */ static int hostfile_parse_int(void) { if (ORTE_HOSTFILE_EQUAL != orte_util_hostfile_lex()) return -1; if (ORTE_HOSTFILE_INT != orte_util_hostfile_lex()) return -1; return orte_util_hostfile_value.ival; } /** * Return the string following an = (option to a keyword) */ static char *hostfile_parse_string(void) { int rc; if (ORTE_HOSTFILE_EQUAL != orte_util_hostfile_lex()){ return NULL; } rc = orte_util_hostfile_lex(); if (ORTE_HOSTFILE_STRING != rc){ return NULL; } return strdup(orte_util_hostfile_value.sval); } static orte_node_t* hostfile_lookup(opal_list_t* nodes, const char* name) { opal_list_item_t* item; for(item = opal_list_get_first(nodes); item != opal_list_get_end(nodes); item = opal_list_get_next(item)) { orte_node_t* node = (orte_node_t*)item; if(strcmp(node->name, name) == 0) { opal_list_remove_item(nodes, item); return node; } } return NULL; } 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_debug_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; } /* 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_debug_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; } /* 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); } 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; } /* 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_BOARDS: rc = hostfile_parse_int(); if (rc < 0) { orte_show_help("help-hostfile.txt", "boards", true, cur_hostfile_name, rc); OBJ_RELEASE(node); return ORTE_ERROR; } node->boards = rc; break; case ORTE_HOSTFILE_SOCKETS_PER_BOARD: rc = hostfile_parse_int(); if (rc < 0) { orte_show_help("help-hostfile.txt", "sockets", true, cur_hostfile_name, rc); OBJ_RELEASE(node); return ORTE_ERROR; } node->sockets_per_board = rc; break; case ORTE_HOSTFILE_CORES_PER_SOCKET: rc = hostfile_parse_int(); if (rc < 0) { orte_show_help("help-hostfile.txt", "cores", true, cur_hostfile_name, rc); OBJ_RELEASE(node); return ORTE_ERROR; } node->cores_per_socket = rc; break; case ORTE_HOSTFILE_CPU_SET: if (NULL != node->cpu_set) { free(node->cpu_set); } node->cpu_set = 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) { if (got_max) { node->slots = node->slots_max; } else { ++node->slots; } } opal_list_append(updates, &node->super); return ORTE_SUCCESS; } /** * Parse the specified file into a node list. */ static int hostfile_parse(const char *hostfile, opal_list_t* updates, opal_list_t* exclude, bool keep_all) { int token; int rc = ORTE_SUCCESS; cur_hostfile_name = hostfile; orte_util_hostfile_done = false; orte_util_hostfile_in = fopen(hostfile, "r"); if (NULL == orte_util_hostfile_in) { orte_show_help("help-hostfile.txt", "no-hostfile", true, hostfile); rc = ORTE_ERR_NOT_FOUND; goto unlock; } while (!orte_util_hostfile_done) { token = orte_util_hostfile_lex(); switch (token) { case ORTE_HOSTFILE_DONE: orte_util_hostfile_done = true; break; case ORTE_HOSTFILE_NEWLINE: break; /* * This looks odd, since we have several forms of host-definitions: * hostname just plain as it is, being a ORTE_HOSTFILE_STRING * IP4s and user@IPv4s * hostname.domain and user@hostname.domain */ case ORTE_HOSTFILE_STRING: case ORTE_HOSTFILE_INT: case ORTE_HOSTFILE_HOSTNAME: case ORTE_HOSTFILE_IPV4: case ORTE_HOSTFILE_IPV6: case ORTE_HOSTFILE_RELATIVE: case ORTE_HOSTFILE_RANK: rc = hostfile_parse_line(token, updates, exclude, keep_all); if (ORTE_SUCCESS != rc) { goto unlock; } break; default: hostfile_parse_error(token); goto unlock; } } fclose(orte_util_hostfile_in); orte_util_hostfile_in = NULL; unlock: cur_hostfile_name = NULL; return rc; } /** * Parse the provided hostfile and add the nodes to the list. */ int orte_util_add_hostfile_nodes(opal_list_t *nodes, bool *override_oversubscribed, char *hostfile) { opal_list_t exclude; opal_list_item_t *item, *itm; int rc; OPAL_OUTPUT_VERBOSE((1, orte_debug_output, "%s hostfile: checking hostfile %s for nodes", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), hostfile)); OBJ_CONSTRUCT(&exclude, opal_list_t); /* parse the hostfile and add the contents to the list */ if (ORTE_SUCCESS != (rc = hostfile_parse(hostfile, nodes, &exclude, false))) { goto cleanup; } /* parse the nodes to check for any relative node directives */ for (item = opal_list_get_first(nodes); item != opal_list_get_end(nodes); item = opal_list_get_next(item)) { orte_node_t *node=(orte_node_t*)item; if ('+' == node->name[0]) { orte_show_help("help-hostfile.txt", "hostfile:relative-syntax", true, node->name); rc = ORTE_ERR_SILENT; goto cleanup; } } /* remove from the list of nodes those that are in the exclude list */ while(NULL != (item = opal_list_remove_first(&exclude))) { orte_node_t *exnode = (orte_node_t*)item; /* check for matches on nodes */ for (itm = opal_list_get_first(nodes); itm != opal_list_get_end(nodes); itm = opal_list_get_next(itm)) { orte_node_t *node=(orte_node_t*)itm; if (0 == strcmp(exnode->name, node->name)) { /* match - remove it */ opal_list_remove_item(nodes, itm); OBJ_RELEASE(itm); break; } } OBJ_RELEASE(item); } /* 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; cleanup: OBJ_DESTRUCT(&exclude); return rc; } /* 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) { 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; OPAL_OUTPUT_VERBOSE((1, orte_debug_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); return rc; } /* 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_list_remove_item(&newnodes, item2); OBJ_RELEASE(item2); break; } } OBJ_RELEASE(item1); } /* now check our nodes and keep 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; } } /* remove item from list */ opal_list_remove_item(nodes, item1); /* xfer to keep list */ opal_list_append(&keep, item1); --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)) { /* match - remove item from list */ opal_list_remove_item(nodes, item1); /* xfer to keep list */ opal_list_append(&keep, item1); 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 */ 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) || (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_alloc = node_from_file->slots; } /* remove the node from the list */ opal_list_remove_item(nodes, item1); /* xfer it to keep list */ opal_list_append(&keep, item1); break; } } } /* 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; } /* 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; } int orte_util_get_ordered_host_list(opal_list_t *nodes, char *hostfile) { opal_list_t exclude; opal_list_item_t *item, *itm, *item2, *item1; char *cptr; int num_empty, i, nodeidx, startempty=0; bool want_all_empty=false; orte_node_t *node_from_pool, *newnode; int rc; OPAL_OUTPUT_VERBOSE((1, orte_debug_output, "%s hostfile: creating ordered list of hosts from hostfile %s", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), hostfile)); OBJ_CONSTRUCT(&exclude, opal_list_t); /* parse the hostfile and add the contents to the list, keeping duplicates */ if (ORTE_SUCCESS != (rc = hostfile_parse(hostfile, nodes, &exclude, true))) { goto cleanup; } /* parse the nodes to process any relative node directives */ item2 = opal_list_get_first(nodes); while (item2 != opal_list_get_end(nodes)) { orte_node_t *node=(orte_node_t*)item2; /* save the next location in case this one gets removed */ item1 = opal_list_get_next(item2); if ('+' != node->name[0]) { item2 = item1; continue; } /* see if we specified empty nodes */ if ('e' == node->name[1] || 'E' == node->name[1]) { /* request for empty nodes - do they want * all of them? */ if (NULL != (cptr = strchr(node->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; } /* insert empty nodes into newnodes list in place of the current item. * since item1 is the next item, we insert in front of it */ if (!orte_hnp_is_allocated && 0 == startempty) { startempty = 1; } for (i=startempty; 0 < num_empty && i < orte_node_pool->size; i++) { if (NULL == (node_from_pool = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, i))) { continue; } if (0 == node_from_pool->slots_inuse) { newnode = OBJ_NEW(orte_node_t); newnode->name = strdup(node_from_pool->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->slots < node_from_pool->slots) { newnode->slots_alloc = node->slots; } else { newnode->slots_alloc = node_from_pool->slots; } opal_list_insert_pos(nodes, item1, &newnode->super); /* track number added */ --num_empty; } } /* bookmark where we stopped in case they ask for more */ startempty = i; /* 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; } /* since we have expanded the provided node, remove * it from list */ opal_list_remove_item(nodes, item2); OBJ_RELEASE(item2); } else if ('n' == node->name[1] || 'N' == node->name[1]) { /* they want a specific relative node #, so * look it up on global pool */ nodeidx = strtol(&node->name[2], NULL, 10); /* 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 == (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->name); rc = ORTE_ERR_SILENT; goto cleanup; } /* create the node object */ newnode = OBJ_NEW(orte_node_t); newnode->name = strdup(node_from_pool->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->slots < node_from_pool->slots) { newnode->slots_alloc = node->slots; } else { newnode->slots_alloc = node_from_pool->slots; } /* insert it before item1 */ opal_list_insert_pos(nodes, item1, &newnode->super); /* since we have expanded the provided node, remove * it from list */ opal_list_remove_item(nodes, item2); OBJ_RELEASE(item2); } else { /* invalid relative node syntax */ orte_show_help("help-hostfile.txt", "hostfile:invalid-relative-node-syntax", true, node->name); rc = ORTE_ERR_SILENT; goto cleanup; } /* move to next */ item2 = item1; } /* remove from the list of nodes those that are in the exclude list */ while(NULL != (item = opal_list_remove_first(&exclude))) { orte_node_t *exnode = (orte_node_t*)item; /* check for matches on nodes */ for (itm = opal_list_get_first(nodes); itm != opal_list_get_end(nodes); itm = opal_list_get_next(itm)) { orte_node_t *node=(orte_node_t*)itm; if (0 == strcmp(exnode->name, node->name)) { /* match - remove it */ opal_list_remove_item(nodes, itm); OBJ_RELEASE(itm); /* have to cycle through the entire list as we could * have duplicates */ } } OBJ_RELEASE(item); } cleanup: OBJ_DESTRUCT(&exclude); return rc; }