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37 lines
938 B
Fortran
37 lines
938 B
Fortran
! @@name: target_update.2f
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! @@type: F-free
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! @@compilable: yes
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! @@linkable: no
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! @@expect: success
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subroutine vec_mult(p, v1, v2, N)
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interface
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logical function maybe_init_again (v1, N)
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real :: v1(N)
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integer :: N
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end function
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end interface
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real :: p(N), v1(N), v2(N)
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integer :: i
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logical :: changed
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call init(v1, v2, N)
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!$omp target data map(to: v1, v2) map(from: p)
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!$omp target
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!$omp parallel do
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do i=1, N
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p(i) = v1(i) * v2(i)
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end do
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!$omp end target
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changed = maybe_init_again(v1, N)
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!$omp target if(changed) update to(v1(:N))
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changed = maybe_init_again(v2, N)
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!$omp target if(changed) update to(v2(:N))
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!$omp target
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!$omp parallel do
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do i=1, N
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p(i) = p(i) + v1(i) * v2(i)
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end do
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!$omp end target
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!$omp end target data
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call output(p, N)
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end subroutine
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