Fixing atomic OpenMP examples

Author: bobrobey

Diff for: atomics_openmp/arraysum10.c

@@ -32,7 +32,7 @@ int main(int argc, char *argv[]) {
     b[i] = 1.0;
   }
 
-  #pragma omp target teams distribute parallel for
+  #pragma omp target teams distribute parallel for reduction(+:ret)
   for(int i = 0; i < n; i++) {
     #pragma omp atomic hint(AMD_safe_fp_atomics)
     ret += b[i];

Diff for: atomics_openmp/arraysum4.c

@@ -37,7 +37,7 @@ int main(int argc, char *argv[]) {
   }
 
   for(int i = 0; i < n; i++) {
-     if ( a[i] != b[i] ) {
+     if ( a[i] != 2.0 ) {
         printf("Error -- i %d a %lf b %lf\n",i,a[i],b[i]);
         errors++;
      }

Diff for: atomics_openmp/arraysum8.c

@@ -32,7 +32,7 @@ int main(int argc, char *argv[]) {
     b[i] = 1.0;
   }
 
-  #pragma omp target teams distribute parallel for
+  #pragma omp target teams distribute parallel for reduction(+:ret)
   for(int i = 0; i < n; i++) {
     #pragma omp atomic hint(AMD_fast_fp_atomics)
     ret += b[i];