mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 16:50:57 +00:00
46 lines
919 B
Fortran
46 lines
919 B
Fortran
! { dg-do run }
|
|
|
|
module e_51_1_mod
|
|
contains
|
|
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 (N)
|
|
real :: p(N), v1(N), v2(N)
|
|
integer :: i, N
|
|
call init (v1, v2, N)
|
|
!$omp target data map(to: v1, v2) map(from: p)
|
|
!$omp target
|
|
!$omp parallel do
|
|
do i = 1, N
|
|
p(i) = v1(i) * v2(i)
|
|
end do
|
|
!$omp end target
|
|
!$omp end target data
|
|
call check (p, N)
|
|
end subroutine
|
|
end module
|
|
|
|
program e_51_1
|
|
use e_51_1_mod, only : vec_mult
|
|
integer :: n
|
|
n = 1000
|
|
call vec_mult (n)
|
|
end program
|