| ! { dg-do run } |
| |
| module e_53_3_mod |
| !$omp declare target (N, p, v1, v2) |
| integer, parameter :: N = 1000 |
| real :: p(N), v1(N), v2(N) |
| end module |
| |
| subroutine init (v1, v2, N) |
| integer :: i, N |
| real :: v1(N), v2(N) |
| do i = 1, N |
| v1(i) = i + 2.0 |
| v2(i) = i - 3.0 |
| end do |
| end subroutine |
| |
| subroutine check (p, N) |
| integer :: i, N |
| real, parameter :: EPS = 0.00001 |
| real :: diff, p(N) |
| do i = 1, N |
| diff = p(i) - (i + 2.0) * (i - 3.0) |
| if (diff > EPS .or. -diff > EPS) stop 1 |
| end do |
| end subroutine |
| |
| subroutine vec_mult () |
| use e_53_3_mod |
| integer :: i |
| call init (v1, v2, N); |
| !$omp target update to(v1, v2) |
| !$omp target |
| !$omp parallel do |
| do i = 1,N |
| p(i) = v1(i) * v2(i) |
| end do |
| !$omp end target |
| !$omp target update from (p) |
| call check (p, N) |
| end subroutine |
| |
| program e_53_3 |
| call vec_mult () |
| end program |