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subroutine initialize_array(n, b)
use omp_lib
implicit none
integer, intent(in) :: n
real, intent(inout) :: b(:)
integer :: i
!$omp parallel shared(b) private(i)
!$omp do
do i = 1, n
b(i) = 12.91
end do
!$omp end do
!$omp end parallel
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 subroutine
program openmp_17
use omp_lib
integer, parameter :: n = 100000
real, dimension(n) :: a
interface
subroutine initialize_array(n, b)
implicit none
integer, intent(in) :: n
real, intent(inout) :: b(:)
end subroutine
end interface
print *, a(2)
call omp_set_num_threads(4)
call initialize_array(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 program
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