libgomp/testsuite/libgomp.oacc-c-c++-common/routine-w-1.c

   1 /* { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
   2    aspects of that functionality.  */
   3
   4 #include <stdio.h>
   5 #include <openacc.h>
   6 #include <gomp-constants.h>
   7
   8 #define N (32*32*32+17)
   9
  10 #pragma acc routine worker
  11 void __attribute__ ((noinline)) worker (int ary[N])
  12 /* { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-1 } */
  13 {
  14 #pragma acc loop worker
  15   for (unsigned ix = 0; ix < N; ix++)
  16     {
  17       if (acc_on_device (acc_device_not_host))
  18         {
  19           int g, w, v;
  20
  21           g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  22           w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  23           v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  24           ary[ix] = (g << 16) | (w << 8) | v;
  25         }
  26       else
  27         ary[ix] = ix;
  28     }
  29 }
  30
  31 int main ()
  32 {
  33   int ary[N];
  34   int ix;
  35   int exit = 0;
  36   int ondev = 0;
  37   int workersize;
  38
  39   for (ix = 0; ix < N;ix++)
  40     ary[ix] = -1;
  41
  42 #define NW 32
  43 #define VL 32
  44 #pragma acc parallel num_workers(NW) vector_length(VL) \
  45             copy(ary) copy(ondev)
  46   {
  47     ondev = acc_on_device (acc_device_not_host);
  48     worker (ary);
  49   }
  50   workersize = NW;
  51 #ifdef ACC_DEVICE_TYPE_radeon
  52   /* AMD GCN has an upper limit of 'num_workers(16)'.  */
  53   if (workersize > 16)
  54     workersize = 16;
  55 #endif
  56
  57   for (ix = 0; ix < N; ix++)
  58     {
  59       int expected = ix;
  60       if(ondev)
  61         {
  62           int g = 0;
  63           int w = ix % workersize;
  64           int v = 0;
  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 }