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https://github.com/autc04/Retro68.git
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78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/* { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
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aspects of that functionality. */
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#include <stdio.h>
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#include <openacc.h>
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#include <gomp-constants.h>
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#define N (32*32*32+17)
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#pragma acc routine worker
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void __attribute__ ((noinline)) worker (int ary[N])
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/* { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-1 } */
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{
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#pragma acc loop worker
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for (unsigned ix = 0; ix < N; ix++)
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{
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if (acc_on_device (acc_device_not_host))
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{
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int g, w, v;
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g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
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w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
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v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
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ary[ix] = (g << 16) | (w << 8) | v;
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}
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else
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ary[ix] = ix;
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}
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}
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int main ()
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{
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int ary[N];
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int ix;
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int exit = 0;
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int ondev = 0;
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int workersize;
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for (ix = 0; ix < N;ix++)
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ary[ix] = -1;
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#define NW 32
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#define VL 32
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#pragma acc parallel num_workers(NW) vector_length(VL) \
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copy(ary) copy(ondev)
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{
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ondev = acc_on_device (acc_device_not_host);
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worker (ary);
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}
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workersize = NW;
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#ifdef ACC_DEVICE_TYPE_radeon
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/* AMD GCN has an upper limit of 'num_workers(16)'. */
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if (workersize > 16)
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workersize = 16;
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#endif
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for (ix = 0; ix < N; ix++)
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{
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int expected = ix;
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if(ondev)
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{
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int g = 0;
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int w = ix % workersize;
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int v = 0;
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expected = (g << 16) | (w << 8) | v;
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}
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if (ary[ix] != expected)
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{
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exit = 1;
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printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
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}
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}
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return exit;
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}
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