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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2004 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include <stdio.h>
#include <stdlib.h>
#include "mpi.h"
#include "mpiimpl.h"
int main(int argc, char **argv)
{
double t1, t2;
double tick;
MPID_Time_t l1, l2;
int i;
MPI_Init(&argc, &argv);
t1 = MPI_Wtime();
t2 = MPI_Wtime();
fprintf(stdout,
"Two successive calls to MPI_Wtime gave: (%f) (%f) diff (%f)\n", t1, t2, t2 - t1);
MPID_Wtime(&l1);
MPID_Wtime(&l2);
MPID_Wtime_diff(&l1, &l2, &t1);
fprintf(stdout,
"Two successive calls to MPID_Wtime gave: (%llx) (%llx) diff (%f)\n", l1, l2, t1);
fprintf(stdout, "Five approximations to one second:\n");
for (i = 0; i < 5; i++) {
t1 = MPI_Wtime();
sleep(1);
t2 = MPI_Wtime();
fprintf(stdout, "%f seconds\n", t2 - t1);
}
/* tick = MPI_Wtick();*/
fprintf(stdout, "MPI_Wtick gave: (%10.8f)\n", tick);
MPI_Finalize();
return 0;
}
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