mirror of
https://github.com/OpenMP/Examples.git
synced 2025-04-04 05:41:33 +01:00
36 lines
719 B
Fortran
36 lines
719 B
Fortran
! @@name: priv_reduction.1
|
|
! @@type: F-free
|
|
! @@operation: run
|
|
! @@expect: success
|
|
! @@version: omp_6.0
|
|
function do_red(n, v) result(sum_v)
|
|
implicit none
|
|
integer :: n, v(*)
|
|
integer :: sum_v ! sum_v is private
|
|
integer :: i
|
|
|
|
sum_v = 0
|
|
!$omp do reduction(+: sum_v)
|
|
do i = 1, n
|
|
sum_v = sum_v + v(i)
|
|
end do
|
|
end function
|
|
|
|
program priv_red
|
|
use :: omp_lib, only : omp_get_thread_num
|
|
implicit none
|
|
integer, parameter :: N = 100
|
|
integer :: i, v(N), s_v
|
|
integer, external :: do_red
|
|
|
|
do i = 1, N
|
|
v(i) = i - 1
|
|
end do
|
|
|
|
!$omp parallel private(s_v)
|
|
s_v = do_red(N, v)
|
|
print 10, omp_get_thread_num(), s_v
|
|
10 format("myid ", i0, ": sum of v = ", i0)
|
|
!$omp end parallel
|
|
end program
|