libgomp/testsuite/libgomp.oacc-c-c++-common/loop-gwv-1.c

   1 /* { dg-additional-options "-fopt-info-note-omp" }
   2    { dg-additional-options "--param=openacc-privatization=noisy" }
   3    { dg-additional-options "-foffload=-fopt-info-note-omp" }
   4    { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
   5    for testing/documenting aspects of that functionality.  */
   6
   7 #include <stdio.h>
   8 #include <openacc.h>
   9 #include <gomp-constants.h>
  10
  11 #define N (32*32*32+17)
  12 int main ()
  13 {
  14   int ary[N];
  15   int ix;
  16   int exit = 0;
  17   int ondev = 0;
  18   int gangsize, workersize, vectorsize;
  19
  20   for (ix = 0; ix < N;ix++)
  21     ary[ix] = -1;
  22
  23 #pragma acc parallel num_gangs(32) num_workers(32) vector_length(32) \
  24             copy(ary) copy(ondev) copyout(gangsize, workersize, vectorsize)
  25   /* { dg-note {variable 'ix' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  26   {
  27 #pragma acc loop gang worker vector
  28     /* { dg-note {variable 'ix' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  29     /* { dg-note {variable 'g' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  30     /* { dg-note {variable 'w' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  31     /* { dg-note {variable 'v' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-4 } */
  32     for (unsigned ix = 0; ix < N; ix++)
  33       {
  34         if (acc_on_device (acc_device_not_host))
  35           {
  36             int g, w, v;
  37
  38             g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  39             w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  40             v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  41
  42             ary[ix] = (g << 16) | (w << 8) | v;
  43             ondev = 1;
  44           }
  45         else
  46           ary[ix] = ix;
  47       }
  48
  49     gangsize = __builtin_goacc_parlevel_size (GOMP_DIM_GANG);
  50     workersize = __builtin_goacc_parlevel_size (GOMP_DIM_WORKER);
  51     vectorsize = __builtin_goacc_parlevel_size (GOMP_DIM_VECTOR);
  52   }
  53
  54   for (ix = 0; ix < N; ix++)
  55     {
  56       int expected = ix;
  57       if(ondev)
  58         {
  59           int chunk_size = (N + gangsize * workersize * vectorsize - 1)
  60                            / (gangsize * workersize * vectorsize);
  61
  62           int g = ix / (chunk_size * workersize * vectorsize);
  63           int w = (ix / vectorsize) % workersize;
  64           int v = ix % vectorsize;
  65
  66           expected = (g << 16) | (w << 8) | v;
  67         }
  68
  69       if (ary[ix] != expected)
  70         {
  71           exit = 1;
  72           printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
  73         }
  74     }
  75
  76   return exit;
  77 }