Commit 352e86db authored by Neil Gershenfeld's avatar Neil Gershenfeld
Browse files

wip

parent 2be85af8
Pipeline #3765 passed with stage
in 1 second
......@@ -15,7 +15,6 @@ double pi;
void main() {
int i;
printf("%d\n",omp_get_max_threads());
double a,b,c,dt,mflops;
struct timespec tstart,tend;
clock_gettime(CLOCK_REALTIME,&tstart);
......@@ -24,13 +23,12 @@ void main() {
c = 0.25;
pi = 0;
pi = 0;
#pragma omp parallel
#pragma omp for reduction(+:pi)
#pragma omp parallel for reduction(+:pi)
for (i = 1; i <= NPTS; ++i)
pi += a/((i-b)*(i-c));
clock_gettime(CLOCK_REALTIME,&tend);
dt = (tend.tv_sec+tend.tv_nsec/1e9)-(tstart.tv_sec+tstart.tv_nsec/1e9);
mflops = NPTS*5.0/(dt*1e6);
printf("NPTS = %d, pi = %f\n",NPTS,pi);
printf("NPTS = %d, pi = %f, threads = %d\n",NPTS,pi,omp_get_max_threads());
printf("time = %f, estimated MFlops = %f\n",dt,mflops);
}
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