1! { dg-do run } 2! { dg-require-effective-target offload_device } 3 4subroutine init (v1, v2, N) 5 !$omp declare target 6 integer :: i, N 7 real :: v1(N), v2(N) 8 do i = 1, N 9 v1(i) = i + 2.0 10 v2(i) = i - 3.0 11 end do 12end subroutine 13 14subroutine check (p, N) 15 integer :: i, N 16 real, parameter :: EPS = 0.00001 17 real :: diff, p(N) 18 do i = 1, N 19 diff = p(i) - (i + 2.0) * (i - 3.0) 20 if (diff > EPS .or. -diff > EPS) call abort 21 end do 22end subroutine 23 24subroutine vec_mult (p, N) 25 use omp_lib, only: omp_is_initial_device 26 real :: p(N) 27 real, allocatable :: v1(:), v2(:) 28 integer :: i 29 !$omp declare target (init) 30 !$omp target data map(to: v1, v2, N) map(from: p) 31 !$omp task shared(v1, v2, p) depend(out: v1, v2) 32 !$omp target map(to: v1, v2, N) 33 if (omp_is_initial_device ()) call abort 34 allocate (v1(N), v2(N)) 35 call init (v1, v2, N) 36 !$omp end target 37 !$omp end task 38 !$omp task shared(v1, v2, p) depend(in: v1, v2) 39 !$omp target map(to: v1, v2, N) map(from: p) 40 if (omp_is_initial_device ()) call abort 41 !$omp parallel do 42 do i = 1, N 43 p(i) = v1(i) * v2(i) 44 end do 45 deallocate (v1, v2) 46 !$omp end target 47 !$omp end task 48 !$omp end target data 49 call check (p, N) 50end subroutine 51 52program e_55_2 53 integer, parameter :: N = 1000 54 real :: p(N) 55 call vec_mult (p, N) 56end program 57