#include <stdio.h> #include <malloc.h> #include <stdlib.h> int main(int argc, char **argv) { int element = 0; int iteration = 0; int iterations = 0; int innerloop = 0; double sum = 0.0; if (argc > 1) iterations = atoi(argv[1]); printf("iterations %d\n", iterations); int array_length = 1000000 * iterations; double *array = (double*)malloc(array_length * sizeof(double)); for (element = 0; element < array_length; element++) array[element] = element; for (iteration = 0; iteration < iterations; iteration++) for (innerloop = 0; innerloop < 1000000000; innerloop++) sum += array[(iteration + innerloop) % array_length]; printf("sum %E\n", sum); free(array); array = NULL; return 0; }