mirror of
https://github.com/autc04/Retro68.git
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64 lines
1.1 KiB
C
64 lines
1.1 KiB
C
#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 gang
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void __attribute__ ((noinline)) gang (int ary[N])
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{
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#pragma acc loop gang
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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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for (ix = 0; ix < N;ix++)
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ary[ix] = -1;
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#pragma acc parallel num_gangs(32) copy(ary) copy(ondev)
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{
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ondev = acc_on_device (acc_device_not_host);
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gang (ary);
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}
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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 = ix / ((N + 31) / 32);
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int w = 0;
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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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