2015-08-28 15:33:40 +00:00
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! { dg-do run }
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module e_50_4_mod
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contains
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subroutine init (v1, v2, N)
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integer :: i, N
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real, pointer, dimension(:) :: v1, v2
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do i = 1, N
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v1(i) = i + 2.0
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v2(i) = i - 3.0
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end do
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end subroutine
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subroutine check (p, N)
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integer :: i, N
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real, parameter :: EPS = 0.00001
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real, pointer, dimension(:) :: p
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do i = 1, N
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diff = p(i) - (i + 2.0) * (i - 3.0)
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2018-12-28 15:30:48 +00:00
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if (diff > EPS .or. -diff > EPS) STOP 1
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2015-08-28 15:33:40 +00:00
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end do
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end subroutine
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subroutine vec_mult_1 (p, v1, v2, N)
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integer :: i, N
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real, pointer, dimension(:) :: p, v1, v2
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!$omp target map(to: v1(1:N), v2(:N)) map(from: p(1:N))
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!$omp parallel do
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do i = 1, N
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p(i) = v1(i) * v2(i)
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end do
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!$omp end target
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end subroutine
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subroutine vec_mult_2 (p, v1, v2, N)
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real, dimension(*) :: p, v1, v2
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integer :: i, N
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!$omp target map(to: v1(1:N), v2(:N)) map(from: p(1:N))
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!$omp parallel do
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do i = 1, N
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p(i) = v1(i) * v2(i)
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end do
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!$omp end target
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end subroutine
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end module
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program e_50_4
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use e_50_4_mod, only : init, check, vec_mult_1, vec_mult_2
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real, pointer, dimension(:) :: p1, p2, v1, v2
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integer :: n
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n = 1000
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allocate (p1(n), p2(n), v1(n), v2(n))
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call init (v1, v2, n)
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call vec_mult_1 (p1, v1, v2, n)
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call vec_mult_2 (p2, v1, v2, n)
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call check (p1, N)
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call check (p2, N)
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deallocate (p1, p2, v1, v2)
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end program
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