2017-10-07 02:16:47 +02:00

42 lines
682 B
Fortran

! { dg-do run }
program reduction
implicit none
integer, parameter :: n = 100
integer :: i, h1, h2, s1, s2, a1, a2
h1 = 0
h2 = 0
do i = 1, n
h1 = h1 + 1
h2 = h2 + 2
end do
s1 = 0
s2 = 0
!$acc parallel loop reduction(+:s1, s2)
do i = 1, n
s1 = s1 + 1
s2 = s2 + 2
end do
!$acc end parallel loop
a1 = 0
a2 = 0
!$acc parallel loop reduction(+:a1, a2) async(1)
do i = 1, n
a1 = a1 + 1
a2 = a2 + 2
end do
!$acc end parallel loop
if (h1 .ne. s1) call abort ()
if (h2 .ne. s2) call abort ()
!$acc wait(1)
if (h1 .ne. a1) call abort ()
if (h2 .ne. a2) call abort ()
end program reduction