OpenMP-Examples/sources/Example_taskloop_reduction.1.c

33 lines
573 B
C

/*
* @@name: taskloop_reduction.1.c
* @@type: C
* @@compilable: yes, omp_5.0
* @@linkable: yes
* @@expect: success
*/
#include <stdio.h>
int array_sum(int n, int *v) {
int i;
int res = 0;
#pragma omp taskloop reduction(+: res)
for(i = 0; i < n; ++i)
res += v[i];
return res;
}
int main(int argc, char *argv[]) {
int n = 10;
int v[10] = {1,2,3,4,5,6,7,8,9,10};
#pragma omp parallel
#pragma omp single
{
int res = array_sum(n, v);
printf("The result is %d\n", res);
}
return 0;
}