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 #define NG 32
  24 #define NW 32
  25 #define VL 32
  26 #pragma acc parallel num_gangs(NG) num_workers(NW) vector_length(VL) \
  27             copy(ary) copy(ondev)
  28   /* { dg-note {variable 'ix' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  29   {
  30 #pragma acc loop gang worker vector
  31     /* { dg-note {variable 'ix' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  32     /* { dg-note {variable 'g' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  33     /* { dg-note {variable 'w' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  34     /* { dg-note {variable 'v' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-4 } */
  35     for (unsigned ix = 0; ix < N; ix++)
  36       {
  37         if (acc_on_device (acc_device_not_host))
  38           {
  39             int g, w, v;
  40
  41             g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  42             w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  43             v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  44
  45             ary[ix] = (g << 16) | (w << 8) | v;
  46             ondev = 1;
  47           }
  48         else
  49           ary[ix] = ix;
  50       }
  51   }
  52   gangsize = NG;
  53   workersize = NW;
  54   vectorsize = VL;
  55 #ifdef ACC_DEVICE_TYPE_radeon
  56   /* AMD GCN has an upper limit of 'num_workers(16)'.  */
  57   if (workersize > 16)
  58     workersize = 16;
  59   /* AMD GCN uses the autovectorizer for the vector dimension: the use
  60      of a function call in vector-partitioned code in this test is not
  61      currently supported.  */
  62   vectorsize = 1;
  63 #endif
  64
  65   for (ix = 0; ix < N; ix++)
  66     {
  67       int expected = ix;
  68       if(ondev)
  69         {
  70           int chunk_size = (N + gangsize * workersize * vectorsize - 1)
  71                            / (gangsize * workersize * vectorsize);
  72
  73           int g = ix / (chunk_size * workersize * vectorsize);
  74           int w = (ix / vectorsize) % workersize;
  75           int v = ix % vectorsize;
  76
  77           expected = (g << 16) | (w << 8) | v;
  78         }
  79
  80       if (ary[ix] != expected)
  81         {
  82           exit = 1;
  83           printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
  84         }
  85     }
  86
  87   return exit;
  88 }