cbc6feaab2
The opal_gethostname() function provides a more robust mechanism to retrieve the hostname than gethostname(), which can return results that are not null-terminated, and which can vary in its behavior from system to system. opal_gethostname() just returns the value in opal_process_info.nodename; this is populated in opal_init_gethostname() inside opal_init.c. -Changed all gethostname calls in opal subtree to opal_gethostname -Changed all gethostname calls in orte subtree to opal_gethostname -Changed all gethostname calls in ompi subdir to opal_gethostname -Changed all gethostname calls in oshmem subdir to opal_gethostname -Changed opal_if.c in test subdir to use opal_gethostname -Changed opal_init.c to include opal_init_gethostname. This function returns an int and directly sets opal_process_info.nodename per jsquyres' modifications. Relates to open-mpi#6801 Signed-off-by: Charles Shereda <cpshereda@lanl.gov>
54 строки
1.2 KiB
C
54 строки
1.2 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 "orte_config.h"
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#include <stdio.h>
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#include <unistd.h>
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#include "opal/class/opal_list.h"
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#include "opal/util/opal_environ.h"
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#include "opal/runtime/opal.h"
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#include "orte/util/proc_info.h"
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#include "orte/util/name_fns.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/runtime/runtime.h"
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#include "orte/mca/ess/ess.h"
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int main(int argc, char* argv[])
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{
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int rc, i, restart=-1;
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const char *hostname;
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char *rstrt;
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pid_t pid;
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if (0 > (rc = orte_init(&argc, &argv, ORTE_PROC_NON_MPI))) {
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fprintf(stderr, "orte_nodename: couldn't init orte - error code %d\n", rc);
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return rc;
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}
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if (NULL != (rstrt = getenv("OMPI_MCA_orte_num_restarts"))) {
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restart = strtol(rstrt, NULL, 10);
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}
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hostname = opal_gethostname();
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pid = getpid();
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printf("orte_nodename: Node %s Name %s Pid %ld Restarts: %d\n",
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hostname, ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), (long)pid, restart);
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for (i=0; NULL != environ[i]; i++) {
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if (0 == strncmp(environ[i], "OMPI_MCA", strlen("OMPI_MCA"))) {
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printf("\t%s\n", environ[i]);
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}
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}
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orte_finalize();
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return 0;
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}
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