openmp/libomptarget/test/offloading/bug64959.c

   1 // RUN: %libomptarget-compilexx-run-and-check-generic
   2 // RUN: %libomptarget-compileoptxx-run-and-check-generic
   3
   4 // TODO: This requires malloc support for the threads states.
   5 // UNSUPPORTED: amdgcn-amd-amdhsa
   6
   7 #include <omp.h>
   8 #include <stdio.h>
   9 #define N 10
  10
  11 int isCPU() { return 1; }
  12
  13 #pragma omp begin declare variant match(device = {kind(gpu)})
  14 int isCPU() { return 0; }
  15 #pragma omp end declare variant
  16
  17 int main(void) {
  18   long int aa = 0;
  19   int res = 0;
  20
  21   int ng = 12;
  22   int cmom = 14;
  23   int nxyz;
  24
  25 #pragma omp target map(from : nxyz, ng, cmom)
  26   {
  27     nxyz = isCPU() ? 2 : 5000;
  28     ng = isCPU() ? 2 : 12;
  29     cmom = isCPU() ? 2 : 14;
  30   }
  31
  32 #pragma omp target teams distribute num_teams(nxyz)                            \
  33     thread_limit(ng *(cmom - 1)) map(tofrom : aa)
  34   for (int gid = 0; gid < nxyz; gid++) {
  35 #pragma omp parallel for collapse(2)
  36     for (unsigned int g = 0; g < ng; g++) {
  37       for (unsigned int l = 0; l < cmom - 1; l++) {
  38         int a = 0;
  39 #pragma omp parallel for reduction(+ : a)
  40         for (int i = 0; i < N; i++) {
  41           a += i;
  42         }
  43 #pragma omp atomic
  44         aa += a;
  45       }
  46     }
  47   }
  48   long exp = (long)ng * (cmom - 1) * nxyz * (N * (N - 1) / 2);
  49   printf("The result is = %ld exp:%ld!\n", aa, exp);
  50   if (aa != exp) {
  51     printf("Failed %ld\n", aa);
  52     return 1;
  53   }
  54   // CHECK: Success
  55   printf("Success\n");
  56   return 0;
  57 }