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subroutine intiailise_array_kernel(n, a)
integer, intent(in) :: n
real, dimension(:), intent(inout) :: a
integer :: i
!$omp parallel shared(a) private(i)
!$omp do
do i = 1, n
a(i) = 12.91
end do
!$omp end do
!$omp end parallel
print *, a(1), a(n)
end subroutine
subroutine initialise_array(n, a)
integer, intent(in) :: n
real, dimension(:), intent(inout) :: a
interface
subroutine intiailise_array_kernel(n, a)
integer, intent(in) :: n
real, dimension(:), intent(inout) :: a
end subroutine
end interface
call intiailise_array_kernel(n, a)
print *, a(1), a(n), a(12), a(12841)
if (abs(a(1) - 12.91) > 1e-8) error stop
if (abs(a(n) - 12.91) > 1e-8) error stop
if (abs(a(12) - 12.91) > 1e-8) error stop
if (abs(a(12841) - 12.91) > 1e-8) error stop
end subroutine
program openmp_26
use omp_lib
integer, parameter :: n = 100000
integer :: i
real, allocatable :: b(:)
interface
subroutine initialise_array(n, a)
integer, intent(in) :: n
real, dimension(:), intent(inout) :: a
end subroutine
end interface
allocate(b(n))
call omp_set_num_threads(4)
call initialise_array(n, b)
print *, b(1), b(n), b(12), b(12841)
if (abs(b(1) - 12.91) > 1e-8) error stop
if (abs(b(n) - 12.91) > 1e-8) error stop
if (abs(b(12) - 12.91) > 1e-8) error stop
if (abs(b(12841) - 12.91) > 1e-8) error stop
end program
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