89 строки
2.3 KiB
C
89 строки
2.3 KiB
C
/* -*- C -*-
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*
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* $HEADER$
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*
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* The most basic of MPI applications
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*/
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#include <stdio.h>
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#include "opal/threads/condition.h"
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#include "opal/util/argv.h"
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#include "orte/util/proc_info.h"
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#include "orte/mca/plm/plm.h"
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#include "orte/mca/rml/rml.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/runtime/runtime.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/util/name_fns.h"
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#define MY_TAG 12345
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int main(int argc, char* argv[])
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{
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int rc;
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orte_job_t *jdata;
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orte_app_context_t *app;
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char cwd[1024];
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orte_process_name_t name;
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struct iovec msg;
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orte_vpid_t i;
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if (0 > (rc = orte_init(ORTE_NON_TOOL))) {
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fprintf(stderr, "couldn't init orte - error code %d\n", rc);
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return rc;
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}
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/* setup the job object */
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jdata = OBJ_NEW(orte_job_t);
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jdata->controls |= ORTE_JOB_CONTROL_NON_ORTE_JOB;
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/* create an app_context that defines the app to be run */
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app = OBJ_NEW(orte_app_context_t);
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app->app = strdup("hostname");
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opal_argv_append_nosize(&app->argv, "hostname");
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app->num_procs = 3;
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getcwd(cwd, sizeof(cwd));
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app->cwd = strdup(cwd);
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app->user_specified_cwd = false;
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/* add the app to the job data */
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opal_pointer_array_add(jdata->apps, app);
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jdata->num_apps = 1;
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#if 0
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/* setup a map object */
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jdata->map = OBJ_NEW(orte_job_map_t);
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jdata->map->display_map = true;
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#endif
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/* launch the job */
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fprintf(stderr, "Parent: My local rank is %ld with %ld num_local_procs - spawning children!\n",
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(long)orte_process_info.local_rank, (long)orte_process_info.num_local_procs);
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if (ORTE_SUCCESS != (rc = orte_plm.spawn(jdata))) {
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ORTE_ERROR_LOG(rc);
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orte_finalize();
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return 1;
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}
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fprintf(stderr, "Parent: children spawned!\n");
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#if 0
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/* send messages to all children - this will verify that we know their contact info */
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name.jobid = jdata->jobid;
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i = 1;
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msg.iov_base = (void *) &i;
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msg.iov_len = sizeof(i);
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for (i=0; i < app->num_procs; i++) {
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name.vpid = i;
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fprintf(stderr, "Parent: sending message to child %s\n", ORTE_NAME_PRINT(&name));
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if (0 > (rc = orte_rml.send(&name, &msg, 1, MY_TAG, 0))) {
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ORTE_ERROR_LOG(rc);
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}
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}
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#endif
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/* All done */
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orte_finalize();
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return 0;
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}
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