113 lines
2.1 KiB
Fortran
113 lines
2.1 KiB
Fortran
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! { dg-do run }
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! complex reductions
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program reduction_4
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implicit none
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integer, parameter :: n = 10, ng = 8, nw = 4, vl = 32
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integer :: i
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real :: vresult, rg, rw, rv, rc
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complex, dimension (n) :: array
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do i = 1, n
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array(i) = i
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end do
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!
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! '+' reductions
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!
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rg = 0
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rw = 0
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rv = 0
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rc = 0
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vresult = 0
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!$acc parallel num_gangs(ng) copy(rg)
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!$acc loop reduction(+:rg) gang
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do i = 1, n
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rg = rg + REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel num_workers(nw) copy(rw)
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!$acc loop reduction(+:rw) worker
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do i = 1, n
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rw = rw + REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel vector_length(vl) copy(rv)
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!$acc loop reduction(+:rv) vector
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do i = 1, n
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rv = rv + REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
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!$acc loop reduction(+:rc) gang worker vector
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do i = 1, n
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rc = rc + REAL(array(i))
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end do
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!$acc end parallel
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! Verify the results
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do i = 1, n
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vresult = vresult + REAL(array(i))
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end do
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if (rg .ne. vresult) STOP 1
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if (rw .ne. vresult) STOP 2
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if (rv .ne. vresult) STOP 3
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if (rc .ne. vresult) STOP 4
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!
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! '*' reductions
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!
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rg = 1
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rw = 1
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rv = 1
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rc = 1
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vresult = 1
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!$acc parallel num_gangs(ng) copy(rg)
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!$acc loop reduction(*:rg) gang
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do i = 1, n
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rg = rg * REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel num_workers(nw) copy(rw)
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!$acc loop reduction(*:rw) worker
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do i = 1, n
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rw = rw * REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel vector_length(vl) copy(rv)
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!$acc loop reduction(*:rv) vector
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do i = 1, n
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rv = rv * REAL(array(i))
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end do
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!$acc end parallel
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!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
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!$acc loop reduction(*:rc) gang worker vector
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do i = 1, n
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rc = rc * REAL(array(i))
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end do
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!$acc end parallel
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! Verify the results
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do i = 1, n
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vresult = vresult * REAL(array(i))
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end do
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if (rg .ne. vresult) STOP 5
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if (rw .ne. vresult) STOP 6
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if (rv .ne. vresult) STOP 7
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if (rc .ne. vresult) STOP 8
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end program reduction_4
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