mirror of
https://github.com/autc04/Retro68.git
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58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
#include <stdlib.h>
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#define N (1024 * 512)
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#define COUNTERTYPE unsigned int
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int
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main (void)
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{
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unsigned int *__restrict a;
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unsigned int *__restrict b;
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unsigned int *__restrict c;
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a = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
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b = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
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c = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
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/* Parallelism dimensions: compiler/runtime decides. */
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#pragma acc kernels copyout (a[0:N])
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{
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for (COUNTERTYPE i = 0; i < N; i++)
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a[i] = i * 2;
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}
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/* Parallelism dimensions: variable. */
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#pragma acc kernels copyout (b[0:N]) \
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num_gangs (3 + a[3]) num_workers (5 + a[5]) vector_length (7 + a[7])
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/* { dg-prune-output "using vector_length \\(32\\), ignoring runtime setting" } */
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{
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for (COUNTERTYPE i = 0; i < N; i++)
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b[i] = i * 4;
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}
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/* Parallelism dimensions: literal. */
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#pragma acc kernels copyin (a[0:N], b[0:N]) copyout (c[0:N]) \
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num_gangs (3) num_workers (5) vector_length (7)
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/* { dg-prune-output "using vector_length \\(32\\), ignoring 7" } */
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{
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for (COUNTERTYPE ii = 0; ii < N; ii++)
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c[ii] = a[ii] + b[ii];
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}
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for (COUNTERTYPE i = 0; i < N; i++)
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{
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if (a[i] != i * 2)
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abort ();
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if (b[i] != i * 4)
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abort ();
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if (c[i] != a[i] + b[i])
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abort ();
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}
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free (a);
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free (b);
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free (c);
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return 0;
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}
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