mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-12-23 21:03:49 +01:00
512 lines
16 KiB
Fortran
512 lines
16 KiB
Fortran
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! ---
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subroutine LTxSxR(n, m, L, S, R, C)
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implicit none
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integer, intent(in) :: n, m
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double precision, intent(in) :: L(n,m), S(n,n), R(n,m)
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double precision, intent(out) :: C(m,m)
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integer :: i, j
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double precision :: accu_d, accu_nd
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double precision, allocatable :: tmp(:,:)
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! L.T x S x R
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allocate(tmp(m,n))
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call dgemm( 'T', 'N', m, n, n, 1.d0 &
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, L, size(L, 1), S, size(S, 1) &
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, 0.d0, tmp, size(tmp, 1) )
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call dgemm( 'N', 'N', m, m, n, 1.d0 &
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, tmp, size(tmp, 1), R, size(R, 1) &
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, 0.d0, C, size(C, 1) )
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deallocate(tmp)
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accu_d = 0.d0
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accu_nd = 0.d0
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do i = 1, m
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do j = 1, m
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if(j.eq.i) then
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accu_d += dabs(C(j,i))
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else
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accu_nd += C(j,i) * C(j,i)
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endif
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enddo
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enddo
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accu_nd = dsqrt(accu_nd)
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print*, ' accu_d = ', accu_d
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print*, ' accu_nd = ', accu_nd
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end subroutine LTxR
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! ---
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subroutine minimize_tc_orb_angles()
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BEGIN_DOC
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! routine that minimizes the angle between left- and right-orbitals when degeneracies are found
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END_DOC
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implicit none
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logical :: good_angles
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integer :: i
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double precision :: thr_deg
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good_angles = .False.
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thr_deg = thr_degen_tc
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call print_energy_and_mos(good_angles)
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print *, ' Minimizing the angles between the TC orbitals'
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i = 1
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do while (.not. good_angles)
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print *, ' iteration = ', i
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call routine_save_rotated_mos(thr_deg, good_angles)
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thr_deg *= 10.d0
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i += 1
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if(i .gt. 100) then
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print *, ' minimize_tc_orb_angles does not seem to converge ..'
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print *, ' Something is weird in the tc orbitals ...'
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print *, ' STOPPING'
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stop
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endif
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enddo
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print *, ' Converged ANGLES MINIMIZATION !!'
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call print_angles_tc()
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call print_energy_and_mos(good_angles)
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end
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! ---
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subroutine routine_save_rotated_mos(thr_deg, good_angles)
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implicit none
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double precision, intent(in) :: thr_deg
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logical, intent(out) :: good_angles
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integer :: i, j, k, n_degen_list, m, n, n_degen, ilast, ifirst
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double precision :: max_angle, norm
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double precision :: E_old, E_new, E_thr
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integer, allocatable :: list_degen(:,:)
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double precision, allocatable :: new_angles(:)
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double precision, allocatable :: mo_r_coef_old(:,:), mo_l_coef_old(:,:)
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double precision, allocatable :: mo_r_coef_good(:,:), mo_l_coef_good(:,:)
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double precision, allocatable :: mo_r_coef_new(:,:)
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double precision, allocatable :: fock_diag(:), s_mat(:,:)
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double precision, allocatable :: stmp(:,:), T(:,:), Snew(:,:), smat2(:,:)
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double precision, allocatable :: mo_l_coef_tmp(:,:), mo_r_coef_tmp(:,:), mo_l_coef_new(:,:)
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PROVIDE TC_HF_energy
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PROVIDE mo_r_coef mo_l_coef
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E_thr = 1d-07
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E_old = TC_HF_energy
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allocate(mo_l_coef_old(ao_num,mo_num), mo_r_coef_old(ao_num,mo_num))
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mo_r_coef_old = mo_r_coef
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mo_l_coef_old = mo_l_coef
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good_angles = .False.
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allocate(mo_l_coef_good(ao_num,mo_num), mo_r_coef_good(ao_num,mo_num))
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print *, ' ***************************************'
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print *, ' ***************************************'
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print *, ' THRESHOLD FOR DEGENERACIES ::: ', thr_deg
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print *, ' ***************************************'
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print *, ' ***************************************'
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print *, ' Starting with the following TC energy gradient :', grad_non_hermit
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mo_r_coef_good = mo_r_coef
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mo_l_coef_good = mo_l_coef
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allocate(mo_r_coef_new(ao_num,mo_num))
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mo_r_coef_new = mo_r_coef
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do i = 1, mo_num
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norm = 1.d0/dsqrt(overlap_mo_r(i,i))
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do j = 1, ao_num
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mo_r_coef_new(j,i) *= norm
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enddo
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enddo
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allocate(list_degen(mo_num,0:mo_num), s_mat(mo_num,mo_num), fock_diag(mo_num))
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do i = 1, mo_num
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fock_diag(i) = Fock_matrix_tc_mo_tot(i,i)
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enddo
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! compute the overlap between the left and rescaled right
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call build_s_matrix(ao_num, mo_num, mo_r_coef_new, mo_r_coef_new, ao_overlap, s_mat)
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! call give_degen(fock_diag,mo_num,thr_deg,list_degen,n_degen_list)
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if(n_core_orb.ne.0)then
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call give_degen_full_listcore(fock_diag, mo_num, list_core, n_core_orb, thr_deg, list_degen, n_degen_list)
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else
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call give_degen_full_list(fock_diag, mo_num, thr_deg, list_degen, n_degen_list)
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endif
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print *, ' fock_matrix_mo'
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do i = 1, mo_num
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print *, i, fock_diag(i), angle_left_right(i)
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enddo
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do i = 1, n_degen_list
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! ifirst = list_degen(1,i)
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! ilast = list_degen(2,i)
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! n_degen = ilast - ifirst +1
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n_degen = list_degen(i,0)
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if(n_degen .ge. 1000) n_degen = 1 ! convention for core orbitals
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if(n_degen .eq. 1) cycle
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print*, ' working on orbital', i
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print*, ' multiplicity =', n_degen
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allocate(stmp(n_degen,n_degen), smat2(n_degen,n_degen))
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allocate(mo_r_coef_tmp(ao_num,n_degen), mo_l_coef_tmp(ao_num,n_degen), mo_l_coef_new(ao_num,n_degen))
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allocate(T(n_degen,n_degen), Snew(n_degen,n_degen))
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print*,'Right orbitals before'
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do j = 1, n_degen
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write(*,'(1000(F16.10,X))') mo_r_coef_new(1:ao_num,list_degen(i,j))
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enddo
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print*,'Left orbitals before'
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do j = 1, n_degen
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write(*,'(1000(F16.10,X))') mo_l_coef(1:ao_num,list_degen(i,j))
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enddo
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if(angle_left_right(list_degen(i,1)).gt.80.d0.and.n_degen==2)then
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integer :: i_list, j_list
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i_list = list_degen(i,1)
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j_list = list_degen(i,2)
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print*,'Huge angle !!! == ',angle_left_right(list_degen(i,1)),angle_left_right(list_degen(i,2))
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print*,'i_list = ',i_list
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print*,'i_list = ',j_list
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print*,'Swapping left/right orbitals'
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call print_strong_overlap(i_list, j_list)
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mo_r_coef_tmp(1:ao_num,1) = mo_r_coef_new(1:ao_num,i_list)
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mo_r_coef_tmp(1:ao_num,2) = mo_l_coef(1:ao_num,i_list)
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mo_l_coef_tmp(1:ao_num,1) = mo_l_coef(1:ao_num,j_list)
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mo_l_coef_tmp(1:ao_num,2) = mo_r_coef_new(1:ao_num,j_list)
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else
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do j = 1, n_degen
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print*,'i_list = ',list_degen(i,j)
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mo_r_coef_tmp(1:ao_num,j) = mo_r_coef_new(1:ao_num,list_degen(i,j))
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mo_l_coef_tmp(1:ao_num,j) = mo_l_coef(1:ao_num,list_degen(i,j))
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enddo
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endif
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print*,'Right orbitals '
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do j = 1, n_degen
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write(*,'(1000(F16.10,X))') mo_r_coef_tmp(1:ao_num,j)
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enddo
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print*,'Left orbitals '
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do j = 1, n_degen
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write(*,'(100(F16.10,X))') mo_l_coef_tmp(1:ao_num,j)
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enddo
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! Orthogonalization of right functions
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print *, ' Orthogonalization of RIGHT functions'
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print *, ' ------------------------------------'
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call orthog_functions(ao_num, n_degen, mo_r_coef_tmp, ao_overlap)
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! Orthogonalization of left functions
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print *, ' Orthogonalization of LEFT functions'
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print *, ' ------------------------------------'
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call orthog_functions(ao_num, n_degen, mo_l_coef_tmp, ao_overlap)
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print *, ' Overlap left-right '
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call build_s_matrix(ao_num, n_degen, mo_r_coef_tmp, mo_l_coef_tmp, ao_overlap, stmp)
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do j = 1, n_degen
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write(*,'(100(F8.4,X))') stmp(:,j)
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enddo
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call build_s_matrix(ao_num, n_degen, mo_l_coef_tmp, mo_l_coef_tmp, ao_overlap, stmp)
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!print*,'LEFT/LEFT OVERLAP '
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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call build_s_matrix(ao_num, n_degen, mo_r_coef_tmp, mo_r_coef_tmp, ao_overlap, stmp)
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!print*,'RIGHT/RIGHT OVERLAP '
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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if(maxovl_tc) then
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T = 0.d0
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Snew = 0.d0
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call maxovl(n_degen, n_degen, stmp, T, Snew)
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!print*,'overlap after'
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')Snew(:,j)
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!enddo
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call dgemm( 'N', 'N', ao_num, n_degen, n_degen, 1.d0 &
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, mo_l_coef_tmp, size(mo_l_coef_tmp, 1), T(1,1), size(T, 1) &
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, 0.d0, mo_l_coef_new, size(mo_l_coef_new, 1) )
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call build_s_matrix(ao_num, n_degen, mo_l_coef_new, mo_r_coef_tmp, ao_overlap, stmp)
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!print*,'Overlap test'
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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else
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mo_l_coef_new = mo_l_coef_tmp
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endif
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call impose_weighted_biorthog_svd(ao_num, n_degen, ao_overlap, mo_l_coef_new, mo_r_coef_tmp)
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!call build_s_matrix(ao_num, n_degen, mo_l_coef_new, mo_r_coef_tmp, ao_overlap, stmp)
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!print*,'LAST OVERLAP '
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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!call build_s_matrix(ao_num, n_degen, mo_l_coef_new, mo_l_coef_new, ao_overlap, stmp)
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!print*,'LEFT OVERLAP '
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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!call build_s_matrix(ao_num, n_degen, mo_r_coef_tmp, mo_r_coef_tmp, ao_overlap, stmp)
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!print*,'RIGHT OVERLAP '
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!do j = 1, n_degen
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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do j = 1, n_degen
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!!! mo_l_coef_good(1:ao_num,j+ifirst-1) = mo_l_coef_new(1:ao_num,j)
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!!! mo_r_coef_good(1:ao_num,j+ifirst-1) = mo_r_coef_tmp(1:ao_num,j)
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mo_l_coef_good(1:ao_num,list_degen(i,j)) = mo_l_coef_new(1:ao_num,j)
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mo_r_coef_good(1:ao_num,list_degen(i,j)) = mo_r_coef_tmp(1:ao_num,j)
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enddo
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deallocate(stmp, smat2)
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deallocate(mo_r_coef_tmp, mo_l_coef_tmp, mo_l_coef_new)
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deallocate(T, Snew)
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enddo
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!allocate(stmp(mo_num, mo_num))
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!call build_s_matrix(ao_num, mo_num, mo_l_coef_good, mo_r_coef_good, ao_overlap, stmp)
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!print*,'LEFT/RIGHT OVERLAP '
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!do j = 1, mo_num
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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!call build_s_matrix(ao_num, mo_num, mo_l_coef_good, mo_l_coef_good, ao_overlap, stmp)
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!print*,'LEFT/LEFT OVERLAP '
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!do j = 1, mo_num
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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!call build_s_matrix(ao_num, mo_num, mo_r_coef_good, mo_r_coef_good, ao_overlap, stmp)
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!print*,'RIGHT/RIGHT OVERLAP '
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!do j = 1, mo_num
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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mo_r_coef = mo_r_coef_good
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mo_l_coef = mo_l_coef_good
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call ezfio_set_bi_ortho_mos_mo_l_coef(mo_l_coef)
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call ezfio_set_bi_ortho_mos_mo_r_coef(mo_r_coef)
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TOUCH mo_l_coef mo_r_coef
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! check if TC energy has changed
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E_new = TC_HF_energy
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E_thr = thresh_de_tc_angles
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if(dabs(E_new - E_old) .gt. E_thr) then
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mo_r_coef = mo_r_coef_old
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mo_l_coef = mo_l_coef_old
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deallocate(mo_l_coef_old, mo_r_coef_old)
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call ezfio_set_bi_ortho_mos_mo_l_coef(mo_l_coef)
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call ezfio_set_bi_ortho_mos_mo_r_coef(mo_r_coef)
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TOUCH mo_l_coef mo_r_coef
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print*, ' TC energy bef rotation = ', E_old
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print*, ' TC energy aft rotation = ', E_new
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print*, ' the rotation is refused'
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stop
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endif
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allocate(new_angles(mo_num))
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new_angles(1:mo_num) = dabs(angle_left_right(1:mo_num))
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max_angle = maxval(new_angles)
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good_angles = max_angle.lt.thresh_lr_angle
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print *, ' max_angle = ', max_angle
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deallocate(new_angles)
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deallocate(mo_l_coef_old, mo_r_coef_old)
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deallocate(mo_l_coef_good, mo_r_coef_good)
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deallocate(mo_r_coef_new)
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end
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! ---
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subroutine build_s_matrix(m, n, C1, C2, overlap, smat)
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implicit none
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integer, intent(in) :: m, n
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double precision, intent(in) :: C1(m,n), C2(m,n), overlap(m,m)
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double precision, intent(out) :: smat(n,n)
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integer :: i, j, k, l
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double precision, allocatable :: S_tmp(:,:)
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smat = 0.d0
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!do i = 1, n
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! do j = 1, n
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! do k = 1, m
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! do l = 1, m
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! smat(i,j) += C1(k,i) * overlap(l,k) * C2(l,j)
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! enddo
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! enddo
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! enddo
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!enddo
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! C1.T x overlap
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allocate(S_tmp(n,m))
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call dgemm( 'T', 'N', n, m, m, 1.d0 &
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, C1, size(C1, 1), overlap, size(overlap, 1) &
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, 0.d0, S_tmp, size(S_tmp, 1) )
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! C1.T x overlap x C2
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call dgemm( 'N', 'N', n, n, m, 1.d0 &
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, S_tmp, size(S_tmp, 1), C2(1,1), size(C2, 1) &
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, 0.d0, smat, size(smat, 1) )
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deallocate(S_tmp)
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end
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! ---
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subroutine orthog_functions(m, n, coef, overlap)
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implicit none
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integer, intent(in) :: m, n
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double precision, intent(in) :: overlap(m,m)
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double precision, intent(inout) :: coef(m,n)
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double precision, allocatable :: stmp(:,:)
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integer :: j, k
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allocate(stmp(n,n))
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call build_s_matrix(m, n, coef, coef, overlap, stmp)
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! print*,'overlap before'
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! do j = 1, n
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! write(*,'(100(F16.10,X))')stmp(:,j)
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! enddo
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call impose_orthog_svd_overlap(m, n, coef, overlap)
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call build_s_matrix(m, n, coef, coef, overlap, stmp)
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do j = 1, n
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! ---
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! TODO: MANU check ici
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!coef(1,:m) *= 1.d0/dsqrt(stmp(j,j))
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do k = 1, m
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coef(k,j) *= 1.d0/dsqrt(stmp(j,j))
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enddo
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! ---
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enddo
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call build_s_matrix(m, n, coef, coef, overlap, stmp)
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!print*,'overlap after'
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!do j = 1, n
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! write(*,'(100(F16.10,X))')stmp(:,j)
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!enddo
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deallocate(stmp)
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end
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! ---
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subroutine print_angles_tc()
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implicit none
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integer :: i, j
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double precision :: left, right
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print *, ' product of norms, angle between vectors'
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do i = 1, mo_num
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left = overlap_mo_l(i,i)
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right = overlap_mo_r(i,i)
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! print*,Fock_matrix_tc_mo_tot(i,i),left*right,angle_left_right(i)
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print *, left*right, angle_left_right(i)
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enddo
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end
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! ---
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subroutine print_energy_and_mos(good_angles)
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implicit none
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logical, intent(out) :: good_angles
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integer :: i
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print *, ' '
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print *, ' TC energy = ', TC_HF_energy
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print *, ' TC SCF energy gradient = ', grad_non_hermit
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print *, ' Max angle Left/right = ', max_angle_left_right
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call print_angles_tc()
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|
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if(max_angle_left_right .lt. thresh_lr_angle) then
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print *, ' Maximum angle BELOW 45 degrees, everthing is OK !'
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good_angles = .true.
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! else if(max_angle_left_right .gt. thresh_lr_angle .and. max_angle_left_right .lt. 75.d0) then
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! print *, ' Maximum angle between thresh_lr_angle and 75 degrees, this is not the best for TC-CI calculations ...'
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! good_angles = .false.
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! else if(max_angle_left_right .gt. 75.d0) then
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! print *, ' Maximum angle between ABOVE 75 degrees, YOU WILL CERTAINLY FIND TROUBLES IN TC-CI calculations ...'
|
|
! good_angles = .false.
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endif
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!
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! print *, ' Diag Fock elem, product of left/right norm, angle left/right '
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! do i = 1, mo_num
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! write(*, '(I3,X,100(F16.10,X))') i, Fock_matrix_tc_mo_tot(i,i), overlap_mo_l(i,i)*overlap_mo_r(i,i), angle_left_right(i)
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! enddo
|
|
|
|
end
|
|
|
|
! ---
|
|
|
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subroutine sort_by_tc_fock
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implicit none
|
|
integer, allocatable :: iorder(:)
|
|
double precision, allocatable :: mo_l_tmp(:,:), mo_r_tmp(:,:),fock(:)
|
|
allocate(iorder(mo_num),fock(mo_num),mo_l_tmp(ao_num, mo_num),mo_r_tmp(ao_num,mo_num))
|
|
integer :: i
|
|
mo_l_tmp = mo_l_coef
|
|
mo_r_tmp = mo_r_coef
|
|
do i = 1, mo_num
|
|
iorder(i) = i
|
|
fock(i) = Fock_matrix_tc_mo_tot(i,i)
|
|
enddo
|
|
call dsort(fock,iorder,mo_num)
|
|
do i = 1, mo_num
|
|
mo_l_coef(1:ao_num,i) = mo_l_tmp(1:ao_num,iorder(i))
|
|
mo_r_coef(1:ao_num,i) = mo_r_tmp(1:ao_num,iorder(i))
|
|
enddo
|
|
touch mo_l_coef mo_r_coef
|
|
|
|
end
|
|
|
|
|
|
subroutine print_strong_overlap(i_list, j_list)
|
|
implicit none
|
|
integer, intent(in) :: i_list,j_list
|
|
double precision :: o_i, o_j,o_ij
|
|
double precision :: s_mat_r(2,2),s_mat_l(2,2)
|
|
o_i = dsqrt(overlap_mo_r(i_list, i_list))
|
|
o_j = dsqrt(overlap_mo_r(j_list, j_list))
|
|
o_ij = overlap_mo_r(j_list, i_list)
|
|
s_mat_r(1,1) = o_i*o_i
|
|
s_mat_r(2,1) = o_ij/(o_i * o_j)
|
|
s_mat_r(2,2) = o_j*o_j
|
|
s_mat_r(1,2) = s_mat_r(2,1)
|
|
print*,'Right overlap matrix '
|
|
write(*,'(2(F10.5,X))')s_mat_r(1:2,1)
|
|
write(*,'(2(F10.5,X))')s_mat_r(1:2,2)
|
|
o_i = dsqrt(overlap_mo_l(i_list, i_list))
|
|
o_j = dsqrt(overlap_mo_l(j_list, j_list))
|
|
o_ij = overlap_mo_l(j_list, i_list)
|
|
s_mat_l(1,1) = o_i*o_i
|
|
s_mat_l(2,1) = o_ij/(o_i * o_j)
|
|
s_mat_l(2,2) = o_j*o_j
|
|
s_mat_l(1,2) = s_mat_l(2,1)
|
|
print*,'Left overlap matrix '
|
|
write(*,'(2(F10.5,X))')s_mat_l(1:2,1)
|
|
write(*,'(2(F10.5,X))')s_mat_l(1:2,2)
|
|
|
|
end
|