486 строки
18 KiB
C
486 строки
18 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/* Much of the code in this file is taken from the file ll_get_machine_list.c,
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* which is provided by IBM as part of their sample programs for LoadLeveler
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* in the samples/llmpich directory. The documentation has the following license:
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* COPYRIGHT LICENSE:
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* This information contains sample application programs in source language, which
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* illustrate programming techniques on various operating platforms. You may copy,
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* modify, and distribute these sample programs in any form without payment to
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* IBM, for the purposes of developing, using, marketing or distributing
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* application programs conforming to the application programming interface for
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* the operating platform for which the sample programs are written. These
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* examples have not been thoroughly tested under all conditions. IBM,
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* therefore, cannot guarantee or imply reliability, serviceability, or
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* function of these programs.
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*/
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#include "orte_config.h"
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#include <errno.h>
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#include <unistd.h>
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#include <string.h>
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#include <llapi.h>
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#include "opal/util/argv.h"
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#include "opal/util/output.h"
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#include "orte/orte_constants.h"
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#include "orte/orte_types.h"
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#include "orte/mca/ras/base/ras_private.h"
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#include "orte/mca/gpr/gpr.h"
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#include "ras_loadleveler.h"
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/*
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* Local functions
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*/
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static int orte_ras_loadleveler_allocate(orte_jobid_t jobid);
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static int orte_ras_loadleveler_deallocate(orte_jobid_t jobid);
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static int orte_ras_loadleveler_finalize(void);
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static int orte_ras_loadleveler_get_hostlist(int * num_hosts, char*** hostlist);
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static char* orte_ras_loadleveler_get_host_arch(char * hostname);
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/*
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* Global variable
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*/
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orte_ras_base_module_t orte_ras_loadleveler_module = {
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orte_ras_loadleveler_allocate,
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orte_ras_base_node_insert,
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orte_ras_base_node_query,
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orte_ras_base_node_query_alloc,
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orte_ras_base_node_lookup,
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orte_ras_loadleveler_deallocate,
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orte_ras_loadleveler_finalize
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};
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/*
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* Discover available (pre-allocated) nodes. Allocate the
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* requested number of nodes/process slots to the job.
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*/
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static int orte_ras_loadleveler_allocate(orte_jobid_t jobid)
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{
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int i, rc, ret;
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opal_list_t nodes_list;
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opal_list_item_t* item;
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orte_ras_node_t* node;
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char ** hostlist = NULL;
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int num_hosts = 0;
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rc = orte_ras_loadleveler_get_hostlist(&num_hosts, &hostlist);
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if(ORTE_SUCCESS != rc) {
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return rc;
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}
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OBJ_CONSTRUCT(&nodes_list, opal_list_t);
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for (i = 0; i < num_hosts; i++) {
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/* check for duplicated nodes */
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for (item = opal_list_get_first(&nodes_list);
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opal_list_get_end(&nodes_list) != item;
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item = opal_list_get_next(item)) {
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node = (orte_ras_node_t*) item;
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if (0 == strcmp(node->node_name, hostlist[i])) {
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++node->node_slots;
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break;
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}
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}
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if(opal_list_get_end(&nodes_list) == item) {
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/* we did not find a duplicate, so add a new item to the list */
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node = OBJ_NEW(orte_ras_node_t);
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if (NULL == node) {
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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node->node_name = strdup(hostlist[i]);
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node->node_arch = orte_ras_loadleveler_get_host_arch(hostlist[i]);
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node->node_state = ORTE_NODE_STATE_UP;
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node->node_cellid = 0;
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node->node_slots_inuse = 0;
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node->node_slots_max = 0;
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node->node_slots = 1;
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opal_list_append(&nodes_list, &node->super);
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}
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}
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ret = orte_ras_base_node_insert(&nodes_list);
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ret = orte_ras_base_allocate_nodes(jobid, &nodes_list);
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while (NULL != (item = opal_list_remove_first(&nodes_list))) {
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OBJ_RELEASE(item);
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}
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OBJ_DESTRUCT(&nodes_list);
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opal_argv_free(hostlist);
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return ORTE_SUCCESS;
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}
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/*
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* There's really nothing to do here
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*/
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static int orte_ras_loadleveler_deallocate(orte_jobid_t jobid)
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{
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:deallocate: success (nothing to do)");
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return ORTE_SUCCESS;
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}
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/*
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* There's really nothing to do here
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*/
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static int orte_ras_loadleveler_finalize(void)
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{
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:finalize: success (nothing to do)");
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return ORTE_SUCCESS;
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}
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/*
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* get the hostlist from LoadLeveler
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* *hostlist should either by NULL or a valid argv and *num_hosts
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* should be 0 or the number of elements in the hostlist argv
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*/
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static int orte_ras_loadleveler_get_hostlist(int* num_hosts, char*** hostlist)
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{
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LL_element *queryObject = NULL, *job = NULL, *step = NULL;
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LL_element *node = NULL, *task = NULL, *task_instance = NULL;
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int rc, obj_count, err_code, ll_master_task, job_step_count;
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char *ll_step_id= NULL, *job_step_list[2], *task_machine_name = NULL;
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char *schedd_host_name = NULL;
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int step_mode;
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/* Get the step ID from LOADL_STEP_ID environment variable. */
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if(NULL == (ll_step_id = getenv("LOADL_STEP_ID"))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: could not get LOADL_STEP_ID "
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"from environment!");
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return ORTE_ERROR;
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}
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job_step_list[0] = ll_step_id;
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job_step_list[1] = NULL;
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/* STEP 1: Get Job object from Central Manager to find out the name of the
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* Schedd daemon that handles this job. In a Multicluster environment we
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* can not get the schedd name from the job step id. */
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/* Initialize the LL API. Specify that query type is JOBS. */
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if(NULL == (queryObject = ll_query(JOBS))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_query faild on JOBS!");
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return ORTE_ERROR;
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}
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/* Specify that this is a QUERY_STEPID type of query. */
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rc = ll_set_request(queryObject, QUERY_STEPID, job_step_list, ALL_DATA);
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if(0 > rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_set request failed: error "
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"%d!", rc);
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return ORTE_ERROR;
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}
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/* Get a Job object from LoadL_schedd that contains the relevant job step */
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job = ll_get_objs(queryObject, LL_CM, NULL, &obj_count, &err_code);
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if(NULL == job) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_objs faild!");
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return ORTE_ERROR;
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}
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if (obj_count != 1) { /* Only 1 Job object is expected. */
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_objs: expected one job "
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"to match, got %d!", obj_count);
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return ORTE_ERROR;
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}
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if(0 != (rc = ll_get_data(job, LL_JobSchedd, &schedd_host_name))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure. RC= %d!",
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rc);
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return ORTE_ERROR;
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}
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if (schedd_host_name != NULL) {
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job_step_list[0] = ll_step_id;
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job_step_list[1] = NULL;
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} else {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_objs() Error: Could not "
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"determine managing schedd for job %s.\n",
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job_step_list[0]);
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return ORTE_ERROR;
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}
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ll_free_objs(queryObject);
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ll_deallocate(queryObject);
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/* STEP 2: Get Job object from Schedd that manages this job step. */
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/* Only schedd query gives us all the relevant task instance info. */
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/* Initialize the LL API. Specify that query type is JOBS. */
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if(NULL == (queryObject = ll_query(JOBS))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_query faild on JOBS!");
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return ORTE_ERROR;
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}
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/* Specify that this is a QUERY_STEPID type of query. */
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rc = ll_set_request(queryObject, QUERY_STEPID, job_step_list, ALL_DATA);
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if(0 != rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_set request failed: error "
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"%d!", rc);
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return ORTE_ERROR;
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}
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/* Get a Job object from LoadL_schedd that contains the relevant job step */
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job = ll_get_objs(queryObject, LL_SCHEDD, schedd_host_name, &obj_count,
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&err_code);
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if(NULL == job) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_set request failed: error "
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"%d!", rc);
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return ORTE_ERROR;
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}
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if (obj_count != 1) { /* Only 1 Job object is expected. */
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_objs: expected one job "
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"to match, got %d!", obj_count);
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return ORTE_ERROR;
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}
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if(0 != (rc = ll_get_data(job, LL_JobStepCount, &job_step_count))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure. RC= %d!",
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rc);
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return ORTE_ERROR;
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}
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if (job_step_count != 1) { /* Only 1 Job Step object is expected. */
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_objs: expected one job "
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"step to match, got %d!", obj_count);
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return ORTE_ERROR;
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}
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step = NULL;
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if(0 != (rc = ll_get_data(job, LL_JobGetFirstStep, &step))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure. RC= %d!",
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rc);
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return ORTE_ERROR;
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}
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if(NULL == step) {
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opal_output(orte_ras_base.ras_output,
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"ll_get_data() Error: Unable to obtain Job Step "
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"information.\n");
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return ORTE_ERROR;
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}
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step_mode = -1;
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if(0 != (rc = ll_get_data(step, LL_StepParallelMode, &step_mode))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_StepParallelMode. RC= %d!", rc);
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return ORTE_ERROR;
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}
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/* Serial job step: step_mode==0; Parallel: step_mode==1; Others:2,3,4. */
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if ((step_mode != 0) && (step_mode != 1)) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: We support only Serial and "
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"Parallel LoadLeveler job types. PVM, NQS, and Blue Gene"
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"jobs are not supported by the LoadLeveler RAS!");
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return ORTE_ERROR;
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}
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if(step_mode == 0) { /* serial job */
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node = NULL;
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if(0 != (rc = ll_get_data(step, LL_StepGetFirstNode, &node))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_StepGetFirstNode. RC= %d!", rc);
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return ORTE_ERROR;
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}
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task = NULL;
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if(0 != (rc = ll_get_data(node, LL_NodeGetFirstTask, &task))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_NodeGetFirstTask. RC= %d!", rc);
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return ORTE_ERROR;
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}
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task_instance = NULL;
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rc = ll_get_data(task, LL_TaskGetFirstTaskInstance, &task_instance);
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if(0 != rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_TaskGetFirstInstance. RC= %d!", rc);
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return ORTE_ERROR;
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}
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task_machine_name = NULL;
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if(0 != (rc = ll_get_data(task_instance, LL_TaskInstanceMachineName,
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&task_machine_name))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_TaskInstanceMachineName. RC= %d!", rc);
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return ORTE_ERROR;
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}
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opal_argv_append(num_hosts, hostlist, task_machine_name);
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} else { /* parallel job */
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node = NULL;
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if(0 != (rc = ll_get_data(step, LL_StepGetFirstNode, &node))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_StepGetFirstNode. RC= %d!", rc);
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return ORTE_ERROR;
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}
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while(NULL != node) { /* Loop through the "Node" objects. */
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task = NULL;
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if(0 != (rc = ll_get_data(node, LL_NodeGetFirstTask, &task))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure on "
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"LL_NodeGetFirstTask. RC= %d!", rc);
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return ORTE_ERROR;
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}
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while(task) { /* Loop through the "Task" objects. */
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ll_master_task = 0;
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rc = ll_get_data(task, LL_TaskIsMaster, &ll_master_task);
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if(0 != rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure"
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" on LL_TaskIsMaster. RC= %d!", rc);
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return ORTE_ERROR;
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}
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/* The "master task" Task object is a LoadLeveler abstraction
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* and is not relevant here. Look at only Task objects that
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* are not "master".*/
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if (!ll_master_task) {
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task_instance = NULL;
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if(0 != (rc = ll_get_data(task, LL_TaskGetFirstTaskInstance,
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&task_instance))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: "
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"failure on LL_TaskGetFirstTaskInstance. "
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" RC= %d!", rc);
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return ORTE_ERROR;
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}
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/* Loop through the "Task Instance" objects. */
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while (task_instance) {
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task_machine_name = NULL;
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rc = ll_get_data(task_instance,
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LL_TaskInstanceMachineName,
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&task_machine_name);
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if(0 != rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data:"
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" failure on LL_TaskInstanceMachineName"
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"RC= %d!", rc);
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return ORTE_ERROR;
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}
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opal_argv_append(num_hosts, hostlist, task_machine_name);
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task_instance = NULL;
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rc = ll_get_data(task, LL_TaskGetNextTaskInstance,
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&task_instance);
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if(0 != rc) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data:"
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" failure on LL_TaskGetNextInstance. "
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"RC= %d!", rc);
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return ORTE_ERROR;
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}
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}
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}
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task = NULL;
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if(0 != (rc = ll_get_data(node, LL_NodeGetNextTask, &task))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: "
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"failure on LL_NodeGetNextTask. RC= %d!", rc);
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return ORTE_ERROR;
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}
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}
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node = NULL;
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if(0 != (rc = ll_get_data(step, LL_StepGetNextNode, &node))) {
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opal_output(orte_ras_base.ras_output,
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"ras:loadleveler:allocate: ll_get_data: failure "
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"on LL_StepGetNextNode. RC= %d!", rc);
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return ORTE_ERROR;
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}
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}
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}
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ll_free_objs(queryObject);
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ll_deallocate(queryObject);
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return ORTE_SUCCESS;
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}
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/*
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* get the machine arch from LoadLeveler
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* Will return NULL on error or a arch string that needs to be freed
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* (some code from the IBM documentation, licensed as above)
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*/
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static char* orte_ras_loadleveler_get_host_arch(char * hostname) {
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LL_element *queryObject, *machine;
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int rc, obj_count, err_code;
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char * hostlist[2];
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char * arch;
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/* Initialize the query: Machine query */
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queryObject = ll_query(MACHINES);
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if(NULL == queryObject) {
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return NULL;
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}
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/* Set query parameters: query specific machines by name */
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hostlist[0] = hostname;
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hostlist[1] = NULL;
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rc = ll_set_request(queryObject, QUERY_HOST, hostlist, ALL_DATA);
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if(0 != rc) {
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return NULL;
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}
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/* Get the machine objects from the LoadL_negotiator (central manager) daemon */
|
|
machine = ll_get_objs(queryObject, LL_CM, NULL, &obj_count, &err_code);
|
|
if(NULL == machine || 1 != obj_count) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Process the machine object */
|
|
rc = ll_get_data(machine, LL_MachineArchitecture, &arch);
|
|
if(0 != rc) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Free objects obtained from Negotiator */
|
|
ll_free_objs(queryObject);
|
|
|
|
/* Free query element */
|
|
ll_deallocate(queryObject);
|
|
|
|
return arch;
|
|
}
|
|
|