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101 lines
1.4 KiB
Fortran
101 lines
1.4 KiB
Fortran
program subarrays
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integer, parameter :: n = 20, c = 10, low = 5, high = 10
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integer :: i, a(n), b(n)
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a(:) = 0
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b(:) = 0
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! COPY
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!$acc parallel copy (a(low:high))
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!$acc loop
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do i = low, high
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a(i) = i
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end do
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!$acc end parallel
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do i = low, high
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b(i) = i
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end do
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call check (a, b, n)
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! COPYOUT
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a(:) = 0
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!$acc parallel copyout (a(low:high))
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!$acc loop
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do i = low, high
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a(i) = i
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end do
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!$acc end parallel
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do i = low, high
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if (a(i) .ne. b(i)) STOP 1
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end do
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call check (a, b, n)
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! COPYIN
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a(:) = 0
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!$acc parallel copyout (a(low:high)) copyin (b(low:high))
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!$acc loop
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do i = low, high
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a(i) = b(i)
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end do
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!$acc end parallel
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call check (a, b, n)
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! PRESENT_OR_COPY
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a(:) = 0
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!$acc parallel pcopy (a(low:high))
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!$acc loop
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do i = low, high
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a(i) = i
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end do
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!$acc end parallel
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call check (a, b, n)
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! PRESENT_OR_COPYOUT
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a(:) = 0
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!$acc parallel pcopyout (a(low:high))
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!$acc loop
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do i = low, high
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a(i) = i
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end do
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!$acc end parallel
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call check (a, b, n)
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! PRESENT_OR_COPYIN
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a(:) = 0
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!$acc parallel pcopyout (a(low:high)) &
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!$acc & pcopyin (b(low:high))
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!$acc loop
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do i = low, high
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a(i) = b(i)
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end do
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!$acc end parallel
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call check (a, b, n)
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end program subarrays
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subroutine check (a, b, n)
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integer :: n, a(n), b(n)
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integer :: i
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do i = 1, n
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if (a(i) .ne. b(i)) STOP 2
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end do
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end subroutine check
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