openmp/prefix/prefix.c

   1 #include <stdio.h>
   2 #include <omp.h>
   3 #include "prefix.h"
   4 #include "algorithm_1.h"
   5 #include "algorithm_2.h"
   6 #include "algorithm_3.h"
   7
   8 #define NUMBERS 104857500
   9
  10 int main (int argc, char* argv[]) {
  11         numtype numarray[NUMBERS];
  12         //unsigned int countarray[NUMBERS];
  13         int i;
  14         double startTime, endTime;
  15
  16         for (i = 0; i < NUMBERS; i++) {
  17                 numarray[i] = 10;
  18                 //countarray[i] = 0;
  19         }
  20
  21         startTime = omp_get_wtime();
  22         printf ("calling algorithm 1:");
  23         algorithm_1(numarray, NUMBERS, NULL);
  24         printf ("sum: %i\n", numarray[NUMBERS-1]);
  25         endTime = omp_get_wtime();
  26         printf("took %f seconds.\n", endTime-startTime);
  27
  28         startTime = omp_get_wtime();
  29         printf ("calling algorithm 2:");
  30         algorithm_2(numarray, NUMBERS, NULL);
  31         printf ("sum: %i\n", numarray[NUMBERS-1]);
  32         endTime = omp_get_wtime();
  33         printf("took %f seconds.\n", endTime-startTime);
  34
  35         startTime = omp_get_wtime();
  36         printf ("calling algorithm 3:");
  37         algorithm_3(numarray, NUMBERS, NULL);
  38         printf ("sum: %i\n", numarray[NUMBERS-1]);
  39         endTime = omp_get_wtime();
  40         printf("took %f seconds.\n", endTime-startTime);
  41
  42         return 0;
  43 }