1! { dg-do run }
2! { dg-require-effective-target offload_device }
3
4module e_51_7_mod
5integer, parameter :: THRESHOLD = 500
6contains
7  subroutine init (v1, v2, N)
8    integer :: i, N
9    real :: v1(N), v2(N)
10    do i = 1, N
11      v1(i) = i + 2.0
12      v2(i) = i - 3.0
13    end do
14  end subroutine
15
16  subroutine check (p, N)
17    integer :: i, N
18    real, parameter :: EPS = 0.00001
19    real :: diff, p(N)
20    do i = 1, N
21      diff = p(i) - (i + 2.0) * (i - 3.0)
22      if (diff > EPS .or. -diff > EPS) call abort
23    end do
24  end subroutine
25
26  subroutine vec_mult (N)
27    use omp_lib, only: omp_is_initial_device
28    real :: p(N), v1(N), v2(N)
29    integer :: i, N
30    call init (v1, v2, N)
31    !$omp target data if(N > THRESHOLD) map(to: v1, v2) map(from: p)
32      !$omp target
33        if (omp_is_initial_device ()) call abort
34        !$omp parallel do
35        do i = 1, N
36          p(i) = v1(i) * v2(i)
37        end do
38      !$omp end target
39    !$omp end target data
40    call check (p, N)
41  end subroutine
42end module
43
44program e_51_7
45  use e_51_7_mod, only : vec_mult
46  integer :: n
47  n = 1000
48  call vec_mult (n)
49end program
50