/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
 *  (C) 2001 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

/* simple test for multiple executables */
#include "mpi.h"
#include <stdio.h>
#ifdef HAVE_WINDOWS_H
#include <direct.h>
#else
#include <unistd.h>
#endif
#include <stdlib.h>

#define MAX_DIRNAME_SIZE 256

int main(int argc, char *argv[], char *envp[])
{
    int i, myid, numprocs;
    int namelen;
    char *p;
    char processor_name[MPI_MAX_PROCESSOR_NAME];
    char curr_wd[MAX_DIRNAME_SIZE];

    MPI_Init(&argc, &argv);
    MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
    MPI_Comm_rank(MPI_COMM_WORLD, &myid);
    MPI_Get_processor_name(processor_name, &namelen);

    fprintf(stdout, "[%d] Process %d of %d (%s) is on %s\n",
            myid, myid, numprocs, argv[0], processor_name);
    fflush(stdout);

    for (i = 1; i < argc; i++) {
        fprintf(stdout, "[%d] argv[%d]=\"%s\"\n", myid, i, argv[i]);
        fflush(stdout);
    }

    getcwd(curr_wd, MAX_DIRNAME_SIZE);
    fprintf(stdout, "[%d] current working directory=%s\n", myid, curr_wd);

    p = getenv("PATH");
    if (p)
        fprintf(stdout, "[%d] PATH=%s\n", myid, p);
    else
        fprintf(stdout, "[%d] PATH not set in environment\n", myid);

#ifdef PRINTENV
    /* may produce lots of output, but here if you need it */
    for (i = 0; envp[i]; i++)
        fprintf(stdout, "[%d] envp[%d]=%s\n", myid, i, envp[i]);
#endif

    MPI_Finalize();
}
