34 lines
786 B
C
34 lines
786 B
C
#include "walltime.h"
|
|
#include <math.h>
|
|
#include <stdlib.h>
|
|
|
|
int main(int argc, char *argv[]) {
|
|
int N = 2000000000;
|
|
double up = 1.00000001;
|
|
double Sn = 1.00000001;
|
|
int n;
|
|
/* allocate memory for the recursion */
|
|
double *opt = (double *)malloc((N + 1) * sizeof(double));
|
|
|
|
if (opt == NULL)
|
|
die("failed to allocate problem size");
|
|
|
|
double time_start = wall_time();
|
|
// TODO: YOU NEED TO PARALLELIZE THIS LOOP
|
|
for (n = 0; n <= N; ++n) {
|
|
opt[n] = Sn;
|
|
Sn *= up;
|
|
}
|
|
|
|
printf("Parallel RunTime : %f seconds\n", wall_time() - time_start);
|
|
printf("Final Result Sn : %.17g \n", Sn);
|
|
|
|
double temp = 0.0;
|
|
for (n = 0; n <= N; ++n) {
|
|
temp += opt[n] * opt[n];
|
|
}
|
|
printf("Result ||opt||^2_2 : %f\n", temp / (double)N);
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|