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33 lines
869 B
Fortran
33 lines
869 B
Fortran
! @@name: target_data.3
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! @@type: F-free
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! @@operation: compile
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! @@expect: success
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! @@version: omp_4.0
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subroutine gramSchmidt(Q,rows,cols)
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integer :: rows,cols, i,k
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double precision :: Q(rows,cols), tmp
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!$omp target data map(Q)
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do k=1,cols
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tmp = 0.0d0
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!$omp target map(tofrom: tmp)
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!$omp parallel do reduction(+:tmp)
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do i=1,rows
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tmp = tmp + (Q(i,k) * Q(i,k))
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end do
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!$omp end target
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tmp = 1.0d0/sqrt(tmp)
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!$omp target
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!$omp parallel do
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do i=1,rows
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Q(i,k) = Q(i,k)*tmp
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enddo
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!$omp end target
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end do
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!$omp end target data
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end subroutine
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! Note: The variable tmp is now mapped with tofrom, for correct
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! execution with 4.5 (and pre-4.5) compliant compilers. See Devices Intro.
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