* See COPYRIGHT in top-level directory.
*/
-/*
+/*
* Check that the timer produces monotone nondecreasing times and that
* the Tick is reasonable
*/
#define MAX_TIMER_TEST 5000
-int main(int argc, char* argv[])
+int main(int argc, char *argv[])
{
double t1[MAX_TIMER_TEST], tick[MAX_TIMER_TEST], tickval;
double minDiff, maxDiff, diff;
int i, nZeros = 0;
int errs = 0;
- MTest_Init(&argc,&argv);
+ MTest_Init(&argc, &argv);
- for (i=0; i<MAX_TIMER_TEST; i++) {
- t1[i] = MPI_Wtime();
+ for (i = 0; i < MAX_TIMER_TEST; i++) {
+ t1[i] = MPI_Wtime();
}
- for (i=0; i<MAX_TIMER_TEST; i++) {
- tick[i] = MPI_Wtick();
+ for (i = 0; i < MAX_TIMER_TEST; i++) {
+ tick[i] = MPI_Wtick();
}
/* Look at the values */
/* Look at the tick */
tickval = MPI_Wtick();
- for (i=0; i<MAX_TIMER_TEST; i++) {
- if (tickval != tick[i]) {
- fprintf( stderr, "Nonconstant value for MPI_Wtick: %e != %e\n",
- tickval, tick[i] );
- errs ++;
- }
+ for (i = 0; i < MAX_TIMER_TEST; i++) {
+ if (tickval != tick[i]) {
+ fprintf(stderr, "Nonconstant value for MPI_Wtick: %e != %e\n", tickval, tick[i]);
+ errs++;
+ }
}
/* Look at the timer */
minDiff = 1.e20;
maxDiff = -1.0;
- nZeros = 0;
- for (i=1; i<MAX_TIMER_TEST; i++) {
- diff = t1[i] - t1[i-1];
- if (diff == 0.0) nZeros++;
- else if (diff < minDiff) minDiff = diff;
- if (diff > maxDiff) maxDiff = diff;
+ nZeros = 0;
+ for (i = 1; i < MAX_TIMER_TEST; i++) {
+ diff = t1[i] - t1[i - 1];
+ if (diff == 0.0)
+ nZeros++;
+ else if (diff < minDiff)
+ minDiff = diff;
+ if (diff > maxDiff)
+ maxDiff = diff;
}
/* Are the time diff values and tick values consistent */
if (verbose) {
- printf( "Tick = %e, timer range = [%e,%e]\n", tickval, minDiff,
- maxDiff );
- if (nZeros) printf( "Wtime difference was 0 %d times\n", nZeros );
- }
+ printf("Tick = %e, timer range = [%e,%e]\n", tickval, minDiff, maxDiff);
+ if (nZeros)
+ printf("Wtime difference was 0 %d times\n", nZeros);
+ }
MTest_Finalize(errs);
MPI_Finalize();