283 lines
8.1 KiB
Fortran
283 lines
8.1 KiB
Fortran
BEGIN_PROVIDER [ integer, mo_tot_num ]
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implicit none
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BEGIN_DOC
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! Total number of molecular orbitals and the size of the keys corresponding
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END_DOC
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PROVIDE ezfio_filename
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logical :: exists
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call ezfio_has_mo_basis_mo_tot_num(exists)
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if (exists) then
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call ezfio_get_mo_basis_mo_tot_num(mo_tot_num)
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else
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mo_tot_num = ao_ortho_canonical_num
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endif
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call write_int(6,mo_tot_num,'mo_tot_num')
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ASSERT (mo_tot_num > 0)
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END_PROVIDER
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BEGIN_PROVIDER [ integer, mo_tot_num_align ]
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implicit none
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BEGIN_DOC
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! Aligned variable for dimensioning of arrays
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END_DOC
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integer :: align_double
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mo_tot_num_align = align_double(mo_tot_num)
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef, (ao_num_align,mo_tot_num) ]
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implicit none
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BEGIN_DOC
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! Molecular orbital coefficients on AO basis set
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! mo_coef(i,j) = coefficient of the ith ao on the jth mo
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! mo_label : Label characterizing the MOS (local, canonical, natural, etc)
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END_DOC
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integer :: i, j
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double precision, allocatable :: buffer(:,:)
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!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: buffer
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logical :: exists
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PROVIDE ezfio_filename
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! Coefs
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call ezfio_has_mo_basis_mo_coef(exists)
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if (exists) then
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allocate(buffer(ao_num,mo_tot_num))
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buffer = 0.d0
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call ezfio_get_mo_basis_mo_coef(buffer)
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do i=1,mo_tot_num
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do j=1,ao_num
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mo_coef(j,i) = buffer(j,i)
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enddo
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do j=ao_num+1,ao_num_align
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mo_coef(j,i) = 0.d0
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enddo
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enddo
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deallocate(buffer)
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else
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! Orthonormalized AO basis
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do i=1,mo_tot_num
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do j=1,ao_num
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mo_coef(j,i) = ao_ortho_canonical_coef(j,i)
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enddo
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do j=ao_num+1,ao_num_align
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mo_coef(j,i) = 0.d0
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enddo
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enddo
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endif
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef_in_ao_ortho_basis, (ao_num_align, mo_tot_num) ]
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implicit none
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BEGIN_DOC
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! MO coefficients in orthogonalized AO basis
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!
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! C^(-1).C_mo
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END_DOC
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call dgemm('N','N',ao_num,mo_tot_num,ao_num,1.d0, &
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ao_ortho_canonical_coef_inv, size(ao_ortho_canonical_coef_inv,1),&
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mo_coef, size(mo_coef,1), 0.d0, &
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mo_coef_in_ao_ortho_basis, size(mo_coef_in_ao_ortho_basis,1))
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END_PROVIDER
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BEGIN_PROVIDER [ character*(64), mo_label ]
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implicit none
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BEGIN_DOC
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! Molecular orbital coefficients on AO basis set
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! mo_coef(i,j) = coefficient of the ith ao on the jth mo
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! mo_label : Label characterizing the MOS (local, canonical, natural, etc)
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END_DOC
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logical :: exists
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PROVIDE ezfio_filename
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call ezfio_has_mo_basis_mo_label(exists)
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if (exists) then
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call ezfio_get_mo_basis_mo_label(mo_label)
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else
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mo_label = 'no_label'
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endif
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef_transp, (mo_tot_num_align,ao_num) ]
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implicit none
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BEGIN_DOC
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! Molecular orbital coefficients on AO basis set
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END_DOC
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integer :: i, j
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do j=1,ao_num
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do i=1,mo_tot_num
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mo_coef_transp(i,j) = mo_coef(j,i)
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enddo
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do i=mo_tot_num+1,mo_tot_num_align
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mo_coef_transp(i,j) = 0.d0
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enddo
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enddo
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, S_mo_coef, (ao_num_align, mo_tot_num) ]
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implicit none
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BEGIN_DOC
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! Product S.C where S is the overlap matrix in the AO basis and C the mo_coef matrix.
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END_DOC
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call dgemm('N','N', ao_num, mo_tot_num, ao_num, &
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1.d0, ao_overlap,size(ao_overlap,1), &
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mo_coef, size(mo_coef,1), &
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0.d0, S_mo_coef, size(S_mo_coef,1))
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_occ, (mo_tot_num) ]
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implicit none
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BEGIN_DOC
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! MO occupation numbers
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END_DOC
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PROVIDE ezfio_filename
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logical :: exists
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call ezfio_has_mo_basis_mo_occ(exists)
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if (exists) then
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call ezfio_get_mo_basis_mo_occ(mo_occ)
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else
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mo_occ = 0.d0
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integer :: i
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do i=1,elec_beta_num
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mo_occ(i) = 2.d0
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enddo
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do i=elec_beta_num+1,elec_alpha_num
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mo_occ(i) = 1.d0
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enddo
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endif
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END_PROVIDER
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subroutine ao_to_mo(A_ao,LDA_ao,A_mo,LDA_mo)
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implicit none
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BEGIN_DOC
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! Transform A from the AO basis to the MO basis
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!
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! (S.C)t.A_ao.S.C
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END_DOC
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integer, intent(in) :: LDA_ao,LDA_mo
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double precision, intent(in) :: A_ao(LDA_ao)
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double precision, intent(out) :: A_mo(LDA_mo)
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double precision, allocatable :: T(:,:), SC(:,:)
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allocate ( SC(ao_num_align,mo_tot_num) )
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allocate ( T(ao_num_align,mo_tot_num) )
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!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: T
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call dgemm('N','N', ao_num, ao_num, mo_tot_num, &
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1.d0, ao_overlap,size(ao_overlap,1), &
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mo_coef, size(mo_coef,1), &
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0.d0, SC, ao_num_align)
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call dgemm('T','N', ao_num, mo_tot_num, ao_num, &
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1.d0, SC, size(SC,1), &
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A_ao, size(A_ao,1), &
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0.d0, T, size(T,1))
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call dgemm('N','N', ao_num, mo_tot_num, ao_num, &
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1.d0, T,size(T,1), &
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SC, size(SC,1), &
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0.d0, A_mo, size(A_mo,1))
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deallocate(T,SC)
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end
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subroutine mo_to_ao(A_mo,LDA_mo,A_ao,LDA_ao)
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implicit none
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BEGIN_DOC
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! Transform A from the MO basis to the AO basis
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!
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! C.A_mo.Ct
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END_DOC
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integer, intent(in) :: LDA_ao,LDA_mo
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double precision, intent(in) :: A_mo(LDA_mo)
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double precision, intent(out) :: A_ao(LDA_ao)
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double precision, allocatable :: T(:,:)
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allocate ( T(mo_tot_num_align,ao_num) )
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!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: T
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call dgemm('N','T', mo_tot_num, ao_num, mo_tot_num, &
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1.d0, A_mo,LDA_mo, &
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mo_coef, size(mo_coef,1), &
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0.d0, T, size(T,1))
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call dgemm('N','N', ao_num, ao_num, mo_tot_num, &
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1.d0, mo_coef,size(mo_coef,1), &
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T, size(T,1), &
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0.d0, A_ao, size(A_ao,1))
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deallocate(T)
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end
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subroutine mix_mo_jk(j,k)
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implicit none
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integer, intent(in) :: j,k
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integer :: i,i_plus,i_minus
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BEGIN_DOC
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! subroutine that rotates the jth MO with the kth MO
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! to give two new MO's that are
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! '+' = 1/sqrt(2) (|j> + |k>)
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! '-' = 1/sqrt(2) (|j> - |k>)
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! by convention, the '+' MO is in the lower index (min(j,k))
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! by convention, the '-' MO is in the greater index (max(j,k))
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END_DOC
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double precision :: array_tmp(ao_num,2),dsqrt_2
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if(j==k)then
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print*,'You want to mix two orbitals that are the same !'
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print*,'It does not make sense ... '
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print*,'Stopping ...'
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stop
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endif
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array_tmp = 0.d0
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dsqrt_2 = 1.d0/dsqrt(2.d0)
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do i = 1, ao_num
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array_tmp(i,1) = dsqrt_2 * (mo_coef(i,j) + mo_coef(i,k))
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array_tmp(i,2) = dsqrt_2 * (mo_coef(i,j) - mo_coef(i,k))
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enddo
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i_plus = min(j,k)
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i_minus = max(j,k)
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do i = 1, ao_num
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mo_coef(i,i_plus) = array_tmp(i,1)
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mo_coef(i,i_minus) = array_tmp(i,2)
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enddo
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end
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subroutine ao_ortho_cano_to_ao(A_ao,LDA_ao,A,LDA)
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implicit none
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BEGIN_DOC
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! Transform A from the AO basis to the orthogonal AO basis
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!
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! C^(-1).A_ao.Ct^(-1)
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END_DOC
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integer, intent(in) :: LDA_ao,LDA
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double precision, intent(in) :: A_ao(LDA_ao,*)
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double precision, intent(out) :: A(LDA,*)
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double precision, allocatable :: T(:,:)
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allocate ( T(ao_num_align,ao_num) )
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!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: T
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call dgemm('T','N', ao_num, ao_num, ao_num, &
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1.d0, &
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ao_ortho_canonical_coef_inv, size(ao_ortho_canonical_coef_inv,1), &
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A_ao,LDA_ao, &
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0.d0, T, ao_num_align)
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call dgemm('N','N', ao_num, ao_num, ao_num, 1.d0, &
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T, size(T,1), &
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ao_ortho_canonical_coef_inv,size(ao_ortho_canonical_coef_inv,1),&
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0.d0, A, LDA)
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deallocate(T)
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end
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