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39 lines
1010 B
Fortran
39 lines
1010 B
Fortran
BEGIN_PROVIDER [ double precision, mo_overlap,(mo_num,mo_num) ]
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implicit none
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BEGIN_DOC
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! Provider to check that the MOs are indeed orthonormal.
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END_DOC
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integer :: i,j,n,l
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double precision :: f
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integer :: lmax
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lmax = (ao_num/4) * 4
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!$OMP PARALLEL DO SCHEDULE(STATIC) DEFAULT(NONE) &
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!$OMP PRIVATE(i,j,n,l) &
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!$OMP SHARED(mo_overlap,mo_coef,ao_overlap, &
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!$OMP mo_num,ao_num,lmax)
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do j=1,mo_num
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do i= 1,mo_num
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mo_overlap(i,j) = 0.d0
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do n = 1, lmax,4
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do l = 1, ao_num
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mo_overlap(i,j) = mo_overlap(i,j) + mo_coef(l,i) * &
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( mo_coef(n ,j) * ao_overlap(l,n ) &
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+ mo_coef(n+1,j) * ao_overlap(l,n+1) &
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+ mo_coef(n+2,j) * ao_overlap(l,n+2) &
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+ mo_coef(n+3,j) * ao_overlap(l,n+3) )
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enddo
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enddo
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do n = lmax+1, ao_num
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do l = 1, ao_num
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mo_overlap(i,j) = mo_overlap(i,j) + mo_coef(n,j) * mo_coef(l,i) * ao_overlap(l,n)
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enddo
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enddo
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enddo
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enddo
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!$OMP END PARALLEL DO
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END_PROVIDER
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