LCOV - code coverage report
Current view: top level - src - atom_types.F (source / functions) Hit Total Coverage
Test: CP2K Regtests (git:2fce0f8) Lines: 1073 1714 62.6 %
Date: 2024-12-21 06:28:57 Functions: 22 42 52.4 %

          Line data    Source code
       1             : !--------------------------------------------------------------------------------------------------!
       2             : !   CP2K: A general program to perform molecular dynamics simulations                              !
       3             : !   Copyright 2000-2024 CP2K developers group <https://cp2k.org>                                   !
       4             : !                                                                                                  !
       5             : !   SPDX-License-Identifier: GPL-2.0-or-later                                                      !
       6             : !--------------------------------------------------------------------------------------------------!
       7             : 
       8             : ! **************************************************************************************************
       9             : !> \brief   Define the atom type and its sub types
      10             : !> \author  jgh
      11             : !> \date    03.03.2008
      12             : !> \version 1.0
      13             : !>
      14             : ! **************************************************************************************************
      15             : MODULE atom_types
      16             :    USE atom_upf,                        ONLY: atom_read_upf,&
      17             :                                               atom_release_upf,&
      18             :                                               atom_upfpot_type
      19             :    USE bessel_lib,                      ONLY: bessel0
      20             :    USE bibliography,                    ONLY: Limpanuparb2011,&
      21             :                                               cite_reference
      22             :    USE cp_linked_list_input,            ONLY: cp_sll_val_next,&
      23             :                                               cp_sll_val_type
      24             :    USE cp_parser_methods,               ONLY: parser_get_next_line,&
      25             :                                               parser_get_object,&
      26             :                                               parser_read_line,&
      27             :                                               parser_search_string,&
      28             :                                               parser_test_next_token
      29             :    USE cp_parser_types,                 ONLY: cp_parser_type,&
      30             :                                               parser_create,&
      31             :                                               parser_release
      32             :    USE input_constants,                 ONLY: &
      33             :         barrier_conf, contracted_gto, do_analytic, do_gapw_log, do_nonrel_atom, do_numeric, &
      34             :         do_potential_coulomb, do_potential_long, do_potential_mix_cl, do_potential_short, &
      35             :         do_rks_atom, do_semi_analytic, ecp_pseudo, gaussian, geometrical_gto, gth_pseudo, no_conf, &
      36             :         no_pseudo, numerical, poly_conf, sgp_pseudo, slater, upf_pseudo
      37             :    USE input_section_types,             ONLY: section_vals_get,&
      38             :                                               section_vals_get_subs_vals,&
      39             :                                               section_vals_list_get,&
      40             :                                               section_vals_type,&
      41             :                                               section_vals_val_get
      42             :    USE input_val_types,                 ONLY: val_get,&
      43             :                                               val_type
      44             :    USE kinds,                           ONLY: default_string_length,&
      45             :                                               dp
      46             :    USE mathconstants,                   ONLY: dfac,&
      47             :                                               fac,&
      48             :                                               pi,&
      49             :                                               rootpi
      50             :    USE periodic_table,                  ONLY: get_ptable_info,&
      51             :                                               ptable
      52             :    USE qs_grid_atom,                    ONLY: allocate_grid_atom,&
      53             :                                               create_grid_atom,&
      54             :                                               deallocate_grid_atom,&
      55             :                                               grid_atom_type
      56             :    USE string_utilities,                ONLY: remove_word,&
      57             :                                               uppercase
      58             : #include "./base/base_uses.f90"
      59             : 
      60             :    IMPLICIT NONE
      61             : 
      62             :    PRIVATE
      63             : 
      64             :    CHARACTER(len=*), PARAMETER, PRIVATE :: moduleN = 'atom_types'
      65             : 
      66             :    ! maximum l-quantum number considered in atomic code/basis
      67             :    INTEGER, PARAMETER                                 :: lmat = 5
      68             : 
      69             :    INTEGER, PARAMETER                                 :: GTO_BASIS = 100, &
      70             :                                                          CGTO_BASIS = 101, &
      71             :                                                          STO_BASIS = 102, &
      72             :                                                          NUM_BASIS = 103
      73             : 
      74             :    INTEGER, PARAMETER                                 :: nmax = 25
      75             : 
      76             : !> \brief Provides all information about a basis set
      77             : ! **************************************************************************************************
      78             :    TYPE atom_basis_type
      79             :       INTEGER                                       :: basis_type = GTO_BASIS
      80             :       INTEGER, DIMENSION(0:lmat)                    :: nbas = 0
      81             :       INTEGER, DIMENSION(0:lmat)                    :: nprim = 0
      82             :       REAL(KIND=dp), DIMENSION(:, :), POINTER       :: am => NULL() !GTO exponents
      83             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: cm => NULL() !Contraction coeffs
      84             :       REAL(KIND=dp), DIMENSION(:, :), POINTER       :: as => NULL() !STO exponents
      85             :       INTEGER, DIMENSION(:, :), POINTER             :: ns => NULL() !STO n-quantum numbers
      86             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: bf => NULL() !num. bsf
      87             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: dbf => NULL() !derivatives (num)
      88             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: ddbf => NULL() !2nd derivatives (num)
      89             :       REAL(KIND=dp)                                 :: eps_eig = 0.0_dp
      90             :       TYPE(grid_atom_type), POINTER                 :: grid => NULL()
      91             :       LOGICAL                                       :: geometrical = .FALSE.
      92             :       REAL(KIND=dp)                                 :: aval = 0.0_dp, cval = 0.0_dp
      93             :       INTEGER, DIMENSION(0:lmat)                    :: start = 0
      94             :    END TYPE atom_basis_type
      95             : 
      96             : !> \brief Provides all information about a pseudopotential
      97             : ! **************************************************************************************************
      98             :    TYPE atom_gthpot_type
      99             :       CHARACTER(LEN=2)                              :: symbol = ""
     100             :       CHARACTER(LEN=default_string_length)          :: pname = ""
     101             :       INTEGER, DIMENSION(0:lmat)                    :: econf = 0
     102             :       REAL(dp)                                      :: zion = 0.0_dp
     103             :       REAL(dp)                                      :: rc = 0.0_dp
     104             :       INTEGER                                       :: ncl = 0
     105             :       REAL(dp), DIMENSION(5)                        :: cl = 0.0_dp
     106             :       INTEGER, DIMENSION(0:lmat)                    :: nl = 0
     107             :       REAL(dp), DIMENSION(0:lmat)                   :: rcnl = 0.0_dp
     108             :       REAL(dp), DIMENSION(4, 4, 0:lmat)             :: hnl = 0.0_dp
     109             :       ! type extensions
     110             :       ! NLCC
     111             :       LOGICAL                                       :: nlcc = .FALSE.
     112             :       INTEGER                                       :: nexp_nlcc = 0
     113             :       REAL(KIND=dp), DIMENSION(10)                  :: alpha_nlcc = 0.0_dp
     114             :       INTEGER, DIMENSION(10)                        :: nct_nlcc = 0
     115             :       REAL(KIND=dp), DIMENSION(4, 10)               :: cval_nlcc = 0.0_dp
     116             :       ! LSD potential
     117             :       LOGICAL                                       :: lsdpot = .FALSE.
     118             :       INTEGER                                       :: nexp_lsd = 0
     119             :       REAL(KIND=dp), DIMENSION(10)                  :: alpha_lsd = 0.0_dp
     120             :       INTEGER, DIMENSION(10)                        :: nct_lsd = 0
     121             :       REAL(KIND=dp), DIMENSION(4, 10)               :: cval_lsd = 0.0_dp
     122             :       ! extended local potential
     123             :       LOGICAL                                       :: lpotextended = .FALSE.
     124             :       INTEGER                                       :: nexp_lpot = 0
     125             :       REAL(KIND=dp), DIMENSION(10)                  :: alpha_lpot = 0.0_dp
     126             :       INTEGER, DIMENSION(10)                        :: nct_lpot = 0
     127             :       REAL(KIND=dp), DIMENSION(4, 10)               :: cval_lpot = 0.0_dp
     128             :    END TYPE atom_gthpot_type
     129             : 
     130             :    TYPE atom_ecppot_type
     131             :       CHARACTER(LEN=2)                              :: symbol = ""
     132             :       CHARACTER(LEN=default_string_length)          :: pname = ""
     133             :       INTEGER, DIMENSION(0:lmat)                    :: econf = 0
     134             :       REAL(dp)                                      :: zion = 0.0_dp
     135             :       INTEGER                                       :: lmax = 0
     136             :       INTEGER                                       :: nloc = 0 ! # terms
     137             :       INTEGER, DIMENSION(1:15)                      :: nrloc = 0 ! r**(n-2)
     138             :       REAL(dp), DIMENSION(1:15)                     :: aloc = 0.0_dp ! coefficient
     139             :       REAL(dp), DIMENSION(1:15)                     :: bloc = 0.0_dp ! exponent
     140             :       INTEGER, DIMENSION(0:10)                      :: npot = 0 ! # terms
     141             :       INTEGER, DIMENSION(1:15, 0:10)                :: nrpot = 0 ! r**(n-2)
     142             :       REAL(dp), DIMENSION(1:15, 0:10)               :: apot = 0.0_dp ! coefficient
     143             :       REAL(dp), DIMENSION(1:15, 0:10)               :: bpot = 0.0_dp ! exponent
     144             :    END TYPE atom_ecppot_type
     145             : 
     146             :    TYPE atom_sgppot_type
     147             :       CHARACTER(LEN=2)                              :: symbol = ""
     148             :       CHARACTER(LEN=default_string_length)          :: pname = ""
     149             :       INTEGER, DIMENSION(0:lmat)                    :: econf = 0
     150             :       REAL(dp)                                      :: zion = 0.0_dp
     151             :       INTEGER                                       :: lmax = 0
     152             :       LOGICAL                                       :: has_nonlocal = .FALSE.
     153             :       INTEGER                                       :: n_nonlocal = 0
     154             :       LOGICAL, DIMENSION(0:5)                       :: is_nonlocal = .FALSE.
     155             :       REAL(KIND=dp), DIMENSION(nmax)                :: a_nonlocal = 0.0_dp
     156             :       REAL(KIND=dp), DIMENSION(nmax, 0:lmat)        :: h_nonlocal = 0.0_dp
     157             :       REAL(KIND=dp), DIMENSION(nmax, nmax, 0:lmat)  :: c_nonlocal = 0.0_dp
     158             :       INTEGER                                       :: n_local = 0
     159             :       REAL(KIND=dp)                                 :: ac_local = 0.0_dp
     160             :       REAL(KIND=dp), DIMENSION(nmax)                :: a_local = 0.0_dp
     161             :       REAL(KIND=dp), DIMENSION(nmax)                :: c_local = 0.0_dp
     162             :       LOGICAL                                       :: has_nlcc = .FALSE.
     163             :       INTEGER                                       :: n_nlcc = 0
     164             :       REAL(KIND=dp), DIMENSION(nmax)                :: a_nlcc = 0.0_dp
     165             :       REAL(KIND=dp), DIMENSION(nmax)                :: c_nlcc = 0.0_dp
     166             :    END TYPE atom_sgppot_type
     167             : 
     168             :    TYPE atom_potential_type
     169             :       INTEGER                                       :: ppot_type = 0
     170             :       LOGICAL                                       :: confinement = .FALSE.
     171             :       INTEGER                                       :: conf_type = 0
     172             :       REAL(dp)                                      :: acon = 0.0_dp
     173             :       REAL(dp)                                      :: rcon = 0.0_dp
     174             :       REAL(dp)                                      :: scon = 0.0_dp
     175             :       TYPE(atom_gthpot_type)                        :: gth_pot = atom_gthpot_type()
     176             :       TYPE(atom_ecppot_type)                        :: ecp_pot = atom_ecppot_type()
     177             :       TYPE(atom_upfpot_type)                        :: upf_pot = atom_upfpot_type()
     178             :       TYPE(atom_sgppot_type)                        :: sgp_pot = atom_sgppot_type()
     179             :    END TYPE atom_potential_type
     180             : 
     181             : !> \brief Provides info about hartree-fock exchange (For now, we only support potentials that can be represented
     182             : !>        with Coulomb and longrange-coulomb potential)
     183             : ! **************************************************************************************************
     184             :    TYPE atom_hfx_type
     185             :       REAL(KIND=dp)                                 :: scale_coulomb = 0.0_dp
     186             :       REAL(KIND=dp)                                 :: scale_longrange = 0.0_dp
     187             :       REAL(KIND=dp)                                 :: omega = 0.0_dp
     188             :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :, :) :: kernel
     189             :       LOGICAL                                       :: do_gh = .FALSE.
     190             :       INTEGER                                       :: nr_gh = 0
     191             :    END TYPE atom_hfx_type
     192             : 
     193             : !> \brief Provides all information on states and occupation
     194             : ! **************************************************************************************************
     195             :    TYPE atom_state
     196             :       REAL(KIND=dp), DIMENSION(0:lmat, 10)          :: occ = 0.0_dp
     197             :       REAL(KIND=dp), DIMENSION(0:lmat, 10)          :: core = 0.0_dp
     198             :       REAL(KIND=dp), DIMENSION(0:lmat, 10)          :: occupation = 0.0_dp
     199             :       INTEGER                                       :: maxl_occ = 0
     200             :       INTEGER, DIMENSION(0:lmat)                    :: maxn_occ = 0
     201             :       INTEGER                                       :: maxl_calc = 0
     202             :       INTEGER, DIMENSION(0:lmat)                    :: maxn_calc = 0
     203             :       INTEGER                                       :: multiplicity = 0
     204             :       REAL(KIND=dp), DIMENSION(0:lmat, 10)          :: occa = 0.0_dp, occb = 0.0_dp
     205             :    END TYPE atom_state
     206             : 
     207             : !> \brief Holds atomic integrals
     208             : ! **************************************************************************************************
     209             :    TYPE eri
     210             :       REAL(KIND=dp), DIMENSION(:, :), POINTER       :: int => NULL()
     211             :    END TYPE eri
     212             : 
     213             :    TYPE atom_integrals
     214             :       INTEGER                                       :: status = 0
     215             :       INTEGER                                       :: ppstat = 0
     216             :       LOGICAL                                       :: eri_coulomb = .FALSE.
     217             :       LOGICAL                                       :: eri_exchange = .FALSE.
     218             :       LOGICAL                                       :: all_nu = .FALSE.
     219             :       INTEGER, DIMENSION(0:lmat)                    :: n = 0, nne = 0
     220             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: ovlp => NULL(), kin => NULL(), core => NULL(), clsd => NULL()
     221             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: utrans => NULL(), uptrans => NULL()
     222             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: hnl => NULL()
     223             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: conf => NULL()
     224             :       TYPE(eri), DIMENSION(100)                     :: ceri = eri()
     225             :       TYPE(eri), DIMENSION(100)                     :: eeri = eri()
     226             :       INTEGER                                       :: dkhstat = 0
     227             :       INTEGER                                       :: zorastat = 0
     228             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: tzora => NULL()
     229             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: hdkh => NULL()
     230             :    END TYPE atom_integrals
     231             : 
     232             : !> \brief Holds atomic orbitals and energies
     233             : ! **************************************************************************************************
     234             :    TYPE atom_orbitals
     235             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: wfn => NULL(), wfna => NULL(), wfnb => NULL()
     236             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: pmat => NULL(), pmata => NULL(), pmatb => NULL()
     237             :       REAL(KIND=dp), DIMENSION(:, :), POINTER       :: ener => NULL(), enera => NULL(), enerb => NULL()
     238             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: refene => NULL(), refchg => NULL(), refnod => NULL()
     239             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: wrefene => NULL(), wrefchg => NULL(), wrefnod => NULL()
     240             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: crefene => NULL(), crefchg => NULL(), crefnod => NULL()
     241             :       REAL(KIND=dp), DIMENSION(:, :), POINTER       :: wpsir0 => NULL(), tpsir0 => NULL()
     242             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: rcmax => NULL()
     243             :       CHARACTER(LEN=2), DIMENSION(:, :, :), POINTER :: reftype => NULL()
     244             :    END TYPE atom_orbitals
     245             : 
     246             : !> \brief Operator matrices
     247             : ! **************************************************************************************************
     248             :    TYPE opmat_type
     249             :       INTEGER, DIMENSION(0:lmat)                    :: n = 0
     250             :       REAL(KIND=dp), DIMENSION(:, :, :), POINTER    :: op => NULL()
     251             :    END TYPE opmat_type
     252             : 
     253             : !> \brief Operator grids
     254             : ! **************************************************************************************************
     255             :    TYPE opgrid_type
     256             :       REAL(KIND=dp), DIMENSION(:), POINTER          :: op => NULL()
     257             :       TYPE(grid_atom_type), POINTER                 :: grid => NULL()
     258             :    END TYPE opgrid_type
     259             : 
     260             : !> \brief All energies
     261             : ! **************************************************************************************************
     262             :    TYPE atom_energy_type
     263             :       REAL(KIND=dp)                                 :: etot = 0.0_dp
     264             :       REAL(KIND=dp)                                 :: eband = 0.0_dp
     265             :       REAL(KIND=dp)                                 :: ekin = 0.0_dp
     266             :       REAL(KIND=dp)                                 :: epot = 0.0_dp
     267             :       REAL(KIND=dp)                                 :: ecore = 0.0_dp
     268             :       REAL(KIND=dp)                                 :: elsd = 0.0_dp
     269             :       REAL(KIND=dp)                                 :: epseudo = 0.0_dp
     270             :       REAL(KIND=dp)                                 :: eploc = 0.0_dp
     271             :       REAL(KIND=dp)                                 :: epnl = 0.0_dp
     272             :       REAL(KIND=dp)                                 :: exc = 0.0_dp
     273             :       REAL(KIND=dp)                                 :: ecoulomb = 0.0_dp
     274             :       REAL(KIND=dp)                                 :: eexchange = 0.0_dp
     275             :       REAL(KIND=dp)                                 :: econfinement = 0.0_dp
     276             :    END TYPE atom_energy_type
     277             : 
     278             : !> \brief Information on optimization procedure
     279             : ! **************************************************************************************************
     280             :    TYPE atom_optimization_type
     281             :       REAL(KIND=dp)                                 :: damping = 0.0_dp
     282             :       REAL(KIND=dp)                                 :: eps_scf = 0.0_dp
     283             :       REAL(KIND=dp)                                 :: eps_diis = 0.0_dp
     284             :       INTEGER                                       :: max_iter = 0
     285             :       INTEGER                                       :: n_diis = 0
     286             :    END TYPE atom_optimization_type
     287             : 
     288             : !> \brief Provides all information about an atomic kind
     289             : ! **************************************************************************************************
     290             :    TYPE atom_type
     291             :       INTEGER                                       :: z = 0
     292             :       INTEGER                                       :: zcore = 0
     293             :       LOGICAL                                       :: pp_calc = .FALSE.
     294             : ! ZMP adding in type some variables
     295             :       LOGICAL                                       :: do_zmp = .FALSE., doread = .FALSE., read_vxc = .FALSE., dm = .FALSE.
     296             :       CHARACTER(LEN=default_string_length)          :: ext_file = "", ext_vxc_file = "", &
     297             :                                                        zmp_restart_file = ""
     298             : !
     299             :       INTEGER                                       :: method_type = do_rks_atom
     300             :       INTEGER                                       :: relativistic = do_nonrel_atom
     301             :       INTEGER                                       :: coulomb_integral_type = do_analytic
     302             :       INTEGER                                       :: exchange_integral_type = do_analytic
     303             : ! ZMP
     304             :       REAL(KIND=dp)                                 :: lambda = 0.0_dp
     305             :       REAL(KIND=dp)                                 :: rho_diff_integral = 0.0_dp
     306             :       REAL(KIND=dp)                                 :: weight = 0.0_dp, zmpgrid_tol = 0.0_dp, zmpvxcgrid_tol = 0.0_dp
     307             : !
     308             :       TYPE(atom_basis_type), POINTER                :: basis => NULL()
     309             :       TYPE(atom_potential_type), POINTER            :: potential => NULL()
     310             :       TYPE(atom_state), POINTER                     :: state => NULL()
     311             :       TYPE(atom_integrals), POINTER                 :: integrals => NULL()
     312             :       TYPE(atom_orbitals), POINTER                  :: orbitals => NULL()
     313             :       TYPE(atom_energy_type)                        :: energy = atom_energy_type()
     314             :       TYPE(atom_optimization_type)                  :: optimization = atom_optimization_type()
     315             :       TYPE(section_vals_type), POINTER              :: xc_section => NULL(), zmp_section => NULL()
     316             :       TYPE(opmat_type), POINTER                     :: fmat => NULL()
     317             :       TYPE(atom_hfx_type)                           :: hfx_pot = atom_hfx_type()
     318             :    END TYPE atom_type
     319             : ! **************************************************************************************************
     320             :    TYPE atom_p_type
     321             :       TYPE(atom_type), POINTER                      :: atom => NULL()
     322             :    END TYPE atom_p_type
     323             : 
     324             :    PUBLIC :: lmat
     325             :    PUBLIC :: atom_p_type, atom_type, atom_basis_type, atom_state, atom_integrals
     326             :    PUBLIC :: atom_orbitals, eri, atom_potential_type, atom_hfx_type
     327             :    PUBLIC :: atom_gthpot_type, atom_ecppot_type, atom_sgppot_type
     328             :    PUBLIC :: atom_optimization_type
     329             :    PUBLIC :: atom_compare_grids
     330             :    PUBLIC :: create_atom_type, release_atom_type, set_atom
     331             :    PUBLIC :: create_atom_orbs, release_atom_orbs
     332             :    PUBLIC :: init_atom_basis, init_atom_basis_default_pp, atom_basis_gridrep, release_atom_basis
     333             :    PUBLIC :: init_atom_potential, release_atom_potential
     334             :    PUBLIC :: read_atom_opt_section, read_ecp_potential
     335             :    PUBLIC :: Clementi_geobas
     336             :    PUBLIC :: GTO_BASIS, CGTO_BASIS, STO_BASIS, NUM_BASIS
     337             :    PUBLIC :: opmat_type, create_opmat, release_opmat
     338             :    PUBLIC :: opgrid_type, create_opgrid, release_opgrid
     339             :    PUBLIC :: no_pseudo, gth_pseudo, sgp_pseudo, upf_pseudo, ecp_pseudo
     340             :    PUBLIC :: setup_hf_section
     341             : 
     342             : ! **************************************************************************************************
     343             : 
     344             : CONTAINS
     345             : 
     346             : ! **************************************************************************************************
     347             : !> \brief Initialize the basis for the atomic code
     348             : !> \param basis ...
     349             : !> \param basis_section ...
     350             : !> \param zval ...
     351             : !> \param btyp ...
     352             : !> \note  Highly accurate relativistic universal Gaussian basis set: Dirac-Fock-Coulomb calculations
     353             : !>        for atomic systems up to nobelium
     354             : !>        J. Chem. Phys. 101, 6829 (1994); DOI:10.1063/1.468311
     355             : !>        G. L. Malli and A. B. F. Da Silva
     356             : !>        Department of Chemistry, Simon Fraser University, Burnaby, B.C., Canada
     357             : !>        Yasuyuki Ishikawa
     358             : !>        Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico
     359             : !>
     360             : !>        A universal Gaussian basis set is developed that leads to relativistic Dirac-Fock SCF energies
     361             : !>        of comparable accuracy as that obtained by the accurate numerical finite-difference method
     362             : !>        (GRASP2 package) [J. Phys. B 25, 1 (1992)]. The Gaussian-type functions of our universal basis
     363             : !>        set satisfy the relativistic boundary conditions associated with the finite nuclear model for a
     364             : !>        finite speed of light and conform to the so-called kinetic balance at the nonrelativistic limit.
     365             : !>        We attribute the exceptionally high accuracy obtained in our calculations to the fact that the
     366             : !>        representation of the relativistic dynamics of an electron in a spherical ball finite nucleus
     367             : !>        near the origin in terms of our universal Gaussian basis set is as accurate as that provided by
     368             : !>        the numerical finite-difference method. Results of the Dirac-Fock-Coulomb energies for a number
     369             : !>        of atoms up to No (Z=102) and some negative ions are presented and compared with the recent
     370             : !>        results obtained with the numerical finite-difference method and geometrical Gaussian basis sets
     371             : !>        by Parpia, Mohanty, and Clementi [J. Phys. B 25, 1 (1992)]. The accuracy of our calculations is
     372             : !>        estimated to be within a few parts in 109 for all the atomic systems studied.
     373             : ! **************************************************************************************************
     374        2884 :    SUBROUTINE init_atom_basis(basis, basis_section, zval, btyp)
     375             :       TYPE(atom_basis_type), INTENT(INOUT)               :: basis
     376             :       TYPE(section_vals_type), POINTER                   :: basis_section
     377             :       INTEGER, INTENT(IN)                                :: zval
     378             :       CHARACTER(LEN=2)                                   :: btyp
     379             : 
     380             :       INTEGER, PARAMETER                                 :: nua = 40, nup = 16
     381             :       REAL(KIND=dp), DIMENSION(nua), PARAMETER :: ugbs = (/0.007299_dp, 0.013705_dp, 0.025733_dp, &
     382             :          0.048316_dp, 0.090718_dp, 0.170333_dp, 0.319819_dp, 0.600496_dp, 1.127497_dp, 2.117000_dp,&
     383             :          3.974902_dp, 7.463317_dp, 14.013204_dp, 26.311339_dp, 49.402449_dp, 92.758561_dp, &
     384             :          174.164456_dp, 327.013024_dp, 614.003114_dp, 1152.858743_dp, 2164.619772_dp, &
     385             :          4064.312984_dp, 7631.197056_dp, 14328.416324_dp, 26903.186074_dp, 50513.706789_dp, &
     386             :          94845.070265_dp, 178082.107320_dp, 334368.848683_dp, 627814.487663_dp, 1178791.123851_dp, &
     387             :          2213310.684886_dp, 4155735.557141_dp, 7802853.046713_dp, 14650719.428954_dp, &
     388             :          27508345.793637_dp, 51649961.080194_dp, 96978513.342764_dp, 182087882.613702_dp, &
     389             :          341890134.751331_dp/)
     390             : 
     391             :       CHARACTER(LEN=default_string_length)               :: basis_fn, basis_name
     392             :       INTEGER                                            :: basistype, i, j, k, l, ll, m, ngp, nl, &
     393             :                                                             nr, nu, quadtype
     394             :       INTEGER, DIMENSION(0:lmat)                         :: starti
     395         721 :       INTEGER, DIMENSION(:), POINTER                     :: nqm, num_gto, num_slater, sindex
     396             :       REAL(KIND=dp)                                      :: al, amax, aval, cval, ear, pf, rk
     397         721 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: expo
     398             :       TYPE(section_vals_type), POINTER                   :: gto_basis_section
     399             : 
     400             :       !   btyp = AE : standard all-electron basis
     401             :       !   btyp = PP : standard pseudopotential basis
     402             :       !   btyp = AA : high accuracy all-electron basis
     403             :       !   btyp = AP : high accuracy pseudopotential basis
     404             : 
     405         721 :       NULLIFY (basis%am, basis%cm, basis%as, basis%ns, basis%bf, basis%dbf, basis%ddbf)
     406             :       ! get information on quadrature type and number of grid points
     407             :       ! allocate and initialize the atomic grid
     408         721 :       CALL allocate_grid_atom(basis%grid)
     409         721 :       CALL section_vals_val_get(basis_section, "QUADRATURE", i_val=quadtype)
     410         721 :       CALL section_vals_val_get(basis_section, "GRID_POINTS", i_val=ngp)
     411         721 :       IF (ngp <= 0) &
     412           0 :          CPABORT("# point radial grid < 0")
     413         721 :       CALL create_grid_atom(basis%grid, ngp, 1, 1, 0, quadtype)
     414         721 :       basis%grid%nr = ngp
     415         721 :       basis%geometrical = .FALSE.
     416         721 :       basis%aval = 0._dp
     417         721 :       basis%cval = 0._dp
     418        5047 :       basis%start = 0
     419             : 
     420         721 :       CALL section_vals_val_get(basis_section, "BASIS_TYPE", i_val=basistype)
     421         721 :       CALL section_vals_val_get(basis_section, "EPS_EIGENVALUE", r_val=basis%eps_eig)
     422           0 :       SELECT CASE (basistype)
     423             :       CASE DEFAULT
     424           0 :          CPABORT("")
     425             :       CASE (gaussian)
     426         492 :          basis%basis_type = GTO_BASIS
     427         492 :          NULLIFY (num_gto)
     428         492 :          CALL section_vals_val_get(basis_section, "NUM_GTO", i_vals=num_gto)
     429         492 :          IF (num_gto(1) < 1) THEN
     430             :             ! use default basis
     431         474 :             IF (btyp == "AE") THEN
     432             :                nu = nua
     433         296 :             ELSEIF (btyp == "PP") THEN
     434             :                nu = nup
     435             :             ELSE
     436           8 :                nu = nua
     437             :             END IF
     438        3318 :             basis%nbas = nu
     439        3318 :             basis%nprim = nu
     440         948 :             ALLOCATE (basis%am(nu, 0:lmat))
     441        3318 :             DO i = 0, lmat
     442       75606 :                basis%am(1:nu, i) = ugbs(1:nu)
     443             :             END DO
     444             :          ELSE
     445         126 :             basis%nbas = 0
     446          78 :             DO i = 1, SIZE(num_gto)
     447          78 :                basis%nbas(i - 1) = num_gto(i)
     448             :             END DO
     449         126 :             basis%nprim = basis%nbas
     450         126 :             m = MAXVAL(basis%nbas)
     451          54 :             ALLOCATE (basis%am(m, 0:lmat))
     452         966 :             basis%am = 0._dp
     453         126 :             DO l = 0, lmat
     454         126 :                IF (basis%nbas(l) > 0) THEN
     455          60 :                   NULLIFY (expo)
     456           0 :                   SELECT CASE (l)
     457             :                   CASE DEFAULT
     458           0 :                      CPABORT("Atom Basis")
     459             :                   CASE (0)
     460          18 :                      CALL section_vals_val_get(basis_section, "S_EXPONENTS", r_vals=expo)
     461             :                   CASE (1)
     462          18 :                      CALL section_vals_val_get(basis_section, "P_EXPONENTS", r_vals=expo)
     463             :                   CASE (2)
     464          18 :                      CALL section_vals_val_get(basis_section, "D_EXPONENTS", r_vals=expo)
     465             :                   CASE (3)
     466          60 :                      CALL section_vals_val_get(basis_section, "F_EXPONENTS", r_vals=expo)
     467             :                   END SELECT
     468          60 :                   CPASSERT(SIZE(expo) >= basis%nbas(l))
     469         446 :                   DO i = 1, basis%nbas(l)
     470         446 :                      basis%am(i, l) = expo(i)
     471             :                   END DO
     472             :                END IF
     473             :             END DO
     474             :          END IF
     475             :          ! initialize basis function on a radial grid
     476         492 :          nr = basis%grid%nr
     477        3444 :          m = MAXVAL(basis%nbas)
     478        2460 :          ALLOCATE (basis%bf(nr, m, 0:lmat))
     479        1476 :          ALLOCATE (basis%dbf(nr, m, 0:lmat))
     480        1476 :          ALLOCATE (basis%ddbf(nr, m, 0:lmat))
     481    29231772 :          basis%bf = 0._dp
     482    29231772 :          basis%dbf = 0._dp
     483    29231772 :          basis%ddbf = 0._dp
     484        3444 :          DO l = 0, lmat
     485       76118 :             DO i = 1, basis%nbas(l)
     486       72674 :                al = basis%am(i, l)
     487    29049226 :                DO k = 1, nr
     488    28973600 :                   rk = basis%grid%rad(k)
     489    28973600 :                   ear = EXP(-al*basis%grid%rad(k)**2)
     490    28973600 :                   basis%bf(k, i, l) = rk**l*ear
     491    28973600 :                   basis%dbf(k, i, l) = (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear
     492             :                   basis%ddbf(k, i, l) = (REAL(l*(l - 1), dp)*rk**(l - 2) - &
     493    29046274 :                                          2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))*ear
     494             :                END DO
     495             :             END DO
     496             :          END DO
     497             :       CASE (geometrical_gto)
     498         126 :          basis%basis_type = GTO_BASIS
     499         126 :          NULLIFY (num_gto)
     500         126 :          CALL section_vals_val_get(basis_section, "NUM_GTO", i_vals=num_gto)
     501         126 :          IF (num_gto(1) < 1) THEN
     502          96 :             IF (btyp == "AE") THEN
     503             :                ! use the Clementi extra large basis
     504          54 :                CALL Clementi_geobas(zval, cval, aval, basis%nbas, starti)
     505          42 :             ELSEIF (btyp == "PP") THEN
     506             :                ! use the Clementi extra large basis
     507           4 :                CALL Clementi_geobas(zval, cval, aval, basis%nbas, starti)
     508          38 :             ELSEIF (btyp == "AA") THEN
     509          20 :                CALL Clementi_geobas(zval, cval, aval, basis%nbas, starti)
     510          20 :                amax = cval**(basis%nbas(0) - 1)
     511          20 :                basis%nbas(0) = NINT((LOG(amax)/LOG(1.6_dp)))
     512          20 :                cval = 1.6_dp
     513          20 :                starti = 0
     514          20 :                basis%nbas(1) = basis%nbas(0) - 4
     515          20 :                basis%nbas(2) = basis%nbas(0) - 8
     516          20 :                basis%nbas(3) = basis%nbas(0) - 12
     517          60 :                IF (lmat > 3) basis%nbas(4:lmat) = 0
     518          18 :             ELSEIF (btyp == "AP") THEN
     519          18 :                CALL Clementi_geobas(zval, cval, aval, basis%nbas, starti)
     520          18 :                amax = 500._dp/aval
     521         126 :                basis%nbas = NINT((LOG(amax)/LOG(1.6_dp)))
     522          18 :                cval = 1.6_dp
     523          18 :                starti = 0
     524             :             ELSE
     525             :                ! use the Clementi extra large basis
     526           0 :                CALL Clementi_geobas(zval, cval, aval, basis%nbas, starti)
     527             :             END IF
     528         672 :             basis%nprim = basis%nbas
     529             :          ELSE
     530         210 :             basis%nbas = 0
     531         144 :             DO i = 1, SIZE(num_gto)
     532         144 :                basis%nbas(i - 1) = num_gto(i)
     533             :             END DO
     534         210 :             basis%nprim = basis%nbas
     535          30 :             NULLIFY (sindex)
     536          30 :             CALL section_vals_val_get(basis_section, "START_INDEX", i_vals=sindex)
     537          30 :             starti = 0
     538         118 :             DO i = 1, SIZE(sindex)
     539          88 :                starti(i - 1) = sindex(i)
     540         118 :                CPASSERT(sindex(i) >= 0)
     541             :             END DO
     542          30 :             CALL section_vals_val_get(basis_section, "GEOMETRICAL_FACTOR", r_val=cval)
     543          30 :             CALL section_vals_val_get(basis_section, "GEO_START_VALUE", r_val=aval)
     544             :          END IF
     545         882 :          m = MAXVAL(basis%nbas)
     546         378 :          ALLOCATE (basis%am(m, 0:lmat))
     547       20214 :          basis%am = 0._dp
     548         882 :          DO l = 0, lmat
     549       11052 :             DO i = 1, basis%nbas(l)
     550       10170 :                ll = i - 1 + starti(l)
     551       10926 :                basis%am(i, l) = aval*cval**(ll)
     552             :             END DO
     553             :          END DO
     554             : 
     555         126 :          basis%geometrical = .TRUE.
     556         126 :          basis%aval = aval
     557         126 :          basis%cval = cval
     558         882 :          basis%start = starti
     559             : 
     560             :          ! initialize basis function on a radial grid
     561         126 :          nr = basis%grid%nr
     562         882 :          m = MAXVAL(basis%nbas)
     563         630 :          ALLOCATE (basis%bf(nr, m, 0:lmat))
     564         378 :          ALLOCATE (basis%dbf(nr, m, 0:lmat))
     565         378 :          ALLOCATE (basis%ddbf(nr, m, 0:lmat))
     566     7074258 :          basis%bf = 0._dp
     567     7074258 :          basis%dbf = 0._dp
     568     7074258 :          basis%ddbf = 0._dp
     569         882 :          DO l = 0, lmat
     570       11052 :             DO i = 1, basis%nbas(l)
     571       10170 :                al = basis%am(i, l)
     572     3681068 :                DO k = 1, nr
     573     3670142 :                   rk = basis%grid%rad(k)
     574     3670142 :                   ear = EXP(-al*basis%grid%rad(k)**2)
     575     3670142 :                   basis%bf(k, i, l) = rk**l*ear
     576     3670142 :                   basis%dbf(k, i, l) = (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear
     577             :                   basis%ddbf(k, i, l) = (REAL(l*(l - 1), dp)*rk**(l - 2) - &
     578     3680312 :                                          2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))*ear
     579             :                END DO
     580             :             END DO
     581             :          END DO
     582             :       CASE (contracted_gto)
     583          79 :          basis%basis_type = CGTO_BASIS
     584          79 :          CALL section_vals_val_get(basis_section, "BASIS_SET_FILE_NAME", c_val=basis_fn)
     585          79 :          CALL section_vals_val_get(basis_section, "BASIS_SET", c_val=basis_name)
     586          79 :          gto_basis_section => section_vals_get_subs_vals(basis_section, "BASIS")
     587             :          CALL read_basis_set(ptable(zval)%symbol, basis, basis_name, basis_fn, &
     588          79 :                              gto_basis_section)
     589             : 
     590             :          ! initialize basis function on a radial grid
     591          79 :          nr = basis%grid%nr
     592         553 :          m = MAXVAL(basis%nbas)
     593         395 :          ALLOCATE (basis%bf(nr, m, 0:lmat))
     594         237 :          ALLOCATE (basis%dbf(nr, m, 0:lmat))
     595         237 :          ALLOCATE (basis%ddbf(nr, m, 0:lmat))
     596      532279 :          basis%bf = 0._dp
     597      532279 :          basis%dbf = 0._dp
     598      532279 :          basis%ddbf = 0._dp
     599         553 :          DO l = 0, lmat
     600        1376 :             DO i = 1, basis%nprim(l)
     601         823 :                al = basis%am(i, l)
     602      330497 :                DO k = 1, nr
     603      329200 :                   rk = basis%grid%rad(k)
     604      329200 :                   ear = EXP(-al*basis%grid%rad(k)**2)
     605     1269223 :                   DO j = 1, basis%nbas(l)
     606      939200 :                      basis%bf(k, j, l) = basis%bf(k, j, l) + rk**l*ear*basis%cm(i, j, l)
     607             :                      basis%dbf(k, j, l) = basis%dbf(k, j, l) &
     608      939200 :                                           + (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear*basis%cm(i, j, l)
     609             :                      basis%ddbf(k, j, l) = basis%ddbf(k, j, l) + &
     610             :                                     (REAL(l*(l - 1), dp)*rk**(l - 2) - 2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))* &
     611     1268400 :                                            ear*basis%cm(i, j, l)
     612             :                   END DO
     613             :                END DO
     614             :             END DO
     615             :          END DO
     616             :       CASE (slater)
     617          24 :          basis%basis_type = STO_BASIS
     618          24 :          NULLIFY (num_slater)
     619          24 :          CALL section_vals_val_get(basis_section, "NUM_SLATER", i_vals=num_slater)
     620          24 :          IF (num_slater(1) < 1) THEN
     621           0 :             CPABORT("")
     622             :          ELSE
     623         168 :             basis%nbas = 0
     624         120 :             DO i = 1, SIZE(num_slater)
     625         120 :                basis%nbas(i - 1) = num_slater(i)
     626             :             END DO
     627         168 :             basis%nprim = basis%nbas
     628         168 :             m = MAXVAL(basis%nbas)
     629         120 :             ALLOCATE (basis%as(m, 0:lmat), basis%ns(m, 0:lmat))
     630         444 :             basis%as = 0._dp
     631         444 :             basis%ns = 0
     632         168 :             DO l = 0, lmat
     633         168 :                IF (basis%nbas(l) > 0) THEN
     634          34 :                   NULLIFY (expo)
     635           0 :                   SELECT CASE (l)
     636             :                   CASE DEFAULT
     637           0 :                      CPABORT("Atom Basis")
     638             :                   CASE (0)
     639          24 :                      CALL section_vals_val_get(basis_section, "S_EXPONENTS", r_vals=expo)
     640             :                   CASE (1)
     641          10 :                      CALL section_vals_val_get(basis_section, "P_EXPONENTS", r_vals=expo)
     642             :                   CASE (2)
     643           0 :                      CALL section_vals_val_get(basis_section, "D_EXPONENTS", r_vals=expo)
     644             :                   CASE (3)
     645          34 :                      CALL section_vals_val_get(basis_section, "F_EXPONENTS", r_vals=expo)
     646             :                   END SELECT
     647          34 :                   CPASSERT(SIZE(expo) >= basis%nbas(l))
     648         104 :                   DO i = 1, basis%nbas(l)
     649         104 :                      basis%as(i, l) = expo(i)
     650             :                   END DO
     651          34 :                   NULLIFY (nqm)
     652           0 :                   SELECT CASE (l)
     653             :                   CASE DEFAULT
     654           0 :                      CPABORT("Atom Basis")
     655             :                   CASE (0)
     656          24 :                      CALL section_vals_val_get(basis_section, "S_QUANTUM_NUMBERS", i_vals=nqm)
     657             :                   CASE (1)
     658          10 :                      CALL section_vals_val_get(basis_section, "P_QUANTUM_NUMBERS", i_vals=nqm)
     659             :                   CASE (2)
     660           0 :                      CALL section_vals_val_get(basis_section, "D_QUANTUM_NUMBERS", i_vals=nqm)
     661             :                   CASE (3)
     662          34 :                      CALL section_vals_val_get(basis_section, "F_QUANTUM_NUMBERS", i_vals=nqm)
     663             :                   END SELECT
     664          34 :                   CPASSERT(SIZE(nqm) >= basis%nbas(l))
     665         104 :                   DO i = 1, basis%nbas(l)
     666         104 :                      basis%ns(i, l) = nqm(i)
     667             :                   END DO
     668             :                END IF
     669             :             END DO
     670             :          END IF
     671             :          ! initialize basis function on a radial grid
     672          24 :          nr = basis%grid%nr
     673         168 :          m = MAXVAL(basis%nbas)
     674         120 :          ALLOCATE (basis%bf(nr, m, 0:lmat))
     675          72 :          ALLOCATE (basis%dbf(nr, m, 0:lmat))
     676          72 :          ALLOCATE (basis%ddbf(nr, m, 0:lmat))
     677      305244 :          basis%bf = 0._dp
     678      305244 :          basis%dbf = 0._dp
     679      305244 :          basis%ddbf = 0._dp
     680         168 :          DO l = 0, lmat
     681         238 :             DO i = 1, basis%nbas(l)
     682          70 :                al = basis%as(i, l)
     683          70 :                nl = basis%ns(i, l)
     684          70 :                pf = (2._dp*al)**nl*SQRT(2._dp*al/fac(2*nl))
     685       93014 :                DO k = 1, nr
     686       92800 :                   rk = basis%grid%rad(k)
     687       92800 :                   ear = rk**(nl - 1)*EXP(-al*rk)
     688       92800 :                   basis%bf(k, i, l) = pf*ear
     689       92800 :                   basis%dbf(k, i, l) = pf*(REAL(nl - 1, dp)/rk - al)*ear
     690             :                   basis%ddbf(k, i, l) = pf*(REAL((nl - 2)*(nl - 1), dp)/rk/rk &
     691       92870 :                                             - al*REAL(2*(nl - 1), dp)/rk + al*al)*ear
     692             :                END DO
     693             :             END DO
     694             :          END DO
     695             :       CASE (numerical)
     696           0 :          basis%basis_type = NUM_BASIS
     697         721 :          CPABORT("")
     698             :       END SELECT
     699             : 
     700         721 :    END SUBROUTINE init_atom_basis
     701             : 
     702             : ! **************************************************************************************************
     703             : !> \brief ...
     704             : !> \param basis ...
     705             : ! **************************************************************************************************
     706          12 :    SUBROUTINE init_atom_basis_default_pp(basis)
     707             :       TYPE(atom_basis_type), INTENT(INOUT)               :: basis
     708             : 
     709             :       INTEGER, PARAMETER                                 :: nua = 40, nup = 20
     710             :       REAL(KIND=dp), DIMENSION(nua), PARAMETER :: ugbs = (/0.007299_dp, 0.013705_dp, 0.025733_dp, &
     711             :          0.048316_dp, 0.090718_dp, 0.170333_dp, 0.319819_dp, 0.600496_dp, 1.127497_dp, 2.117000_dp,&
     712             :          3.974902_dp, 7.463317_dp, 14.013204_dp, 26.311339_dp, 49.402449_dp, 92.758561_dp, &
     713             :          174.164456_dp, 327.013024_dp, 614.003114_dp, 1152.858743_dp, 2164.619772_dp, &
     714             :          4064.312984_dp, 7631.197056_dp, 14328.416324_dp, 26903.186074_dp, 50513.706789_dp, &
     715             :          94845.070265_dp, 178082.107320_dp, 334368.848683_dp, 627814.487663_dp, 1178791.123851_dp, &
     716             :          2213310.684886_dp, 4155735.557141_dp, 7802853.046713_dp, 14650719.428954_dp, &
     717             :          27508345.793637_dp, 51649961.080194_dp, 96978513.342764_dp, 182087882.613702_dp, &
     718             :          341890134.751331_dp/)
     719             : 
     720             :       INTEGER                                            :: i, k, l, m, ngp, nr, nu, quadtype
     721             :       REAL(KIND=dp)                                      :: al, ear, rk
     722             : 
     723          12 :       NULLIFY (basis%am, basis%cm, basis%as, basis%ns, basis%bf, basis%dbf, basis%ddbf)
     724             :       ! allocate and initialize the atomic grid
     725          12 :       NULLIFY (basis%grid)
     726          12 :       CALL allocate_grid_atom(basis%grid)
     727          12 :       quadtype = do_gapw_log
     728          12 :       ngp = 500
     729          12 :       CALL create_grid_atom(basis%grid, ngp, 1, 1, 0, quadtype)
     730          12 :       basis%grid%nr = ngp
     731          12 :       basis%geometrical = .FALSE.
     732          12 :       basis%aval = 0._dp
     733          12 :       basis%cval = 0._dp
     734          84 :       basis%start = 0
     735          12 :       basis%eps_eig = 1.e-12_dp
     736             : 
     737          12 :       basis%basis_type = GTO_BASIS
     738          12 :       nu = nup
     739          84 :       basis%nbas = nu
     740          84 :       basis%nprim = nu
     741          12 :       ALLOCATE (basis%am(nu, 0:lmat))
     742          84 :       DO i = 0, lmat
     743        1524 :          basis%am(1:nu, i) = ugbs(1:nu)
     744             :       END DO
     745             :       ! initialize basis function on a radial grid
     746          12 :       nr = basis%grid%nr
     747          84 :       m = MAXVAL(basis%nbas)
     748          60 :       ALLOCATE (basis%bf(nr, m, 0:lmat))
     749          36 :       ALLOCATE (basis%dbf(nr, m, 0:lmat))
     750          36 :       ALLOCATE (basis%ddbf(nr, m, 0:lmat))
     751      721524 :       basis%bf = 0._dp
     752      721524 :       basis%dbf = 0._dp
     753      721524 :       basis%ddbf = 0._dp
     754          84 :       DO l = 0, lmat
     755        1524 :          DO i = 1, basis%nbas(l)
     756        1440 :             al = basis%am(i, l)
     757      721512 :             DO k = 1, nr
     758      720000 :                rk = basis%grid%rad(k)
     759      720000 :                ear = EXP(-al*basis%grid%rad(k)**2)
     760      720000 :                basis%bf(k, i, l) = rk**l*ear
     761      720000 :                basis%dbf(k, i, l) = (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear
     762             :                basis%ddbf(k, i, l) = (REAL(l*(l - 1), dp)*rk**(l - 2) - &
     763      721440 :                                       2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))*ear
     764             :             END DO
     765             :          END DO
     766             :       END DO
     767             : 
     768          12 :    END SUBROUTINE init_atom_basis_default_pp
     769             : 
     770             : ! **************************************************************************************************
     771             : !> \brief ...
     772             : !> \param basis ...
     773             : !> \param gbasis ...
     774             : !> \param r ...
     775             : !> \param rab ...
     776             : ! **************************************************************************************************
     777          40 :    SUBROUTINE atom_basis_gridrep(basis, gbasis, r, rab)
     778             :       TYPE(atom_basis_type), INTENT(IN)                  :: basis
     779             :       TYPE(atom_basis_type), INTENT(INOUT)               :: gbasis
     780             :       REAL(KIND=dp), DIMENSION(:), INTENT(IN)            :: r, rab
     781             : 
     782             :       INTEGER                                            :: i, j, k, l, m, n1, n2, n3, ngp, nl, nr, &
     783             :                                                             quadtype
     784             :       REAL(KIND=dp)                                      :: al, ear, pf, rk
     785             : 
     786          40 :       NULLIFY (gbasis%am, gbasis%cm, gbasis%as, gbasis%ns, gbasis%bf, gbasis%dbf, gbasis%ddbf)
     787             : 
     788             :       ! copy basis info
     789          40 :       gbasis%basis_type = basis%basis_type
     790         280 :       gbasis%nbas(0:lmat) = basis%nbas(0:lmat)
     791         280 :       gbasis%nprim(0:lmat) = basis%nprim(0:lmat)
     792          40 :       IF (ASSOCIATED(basis%am)) THEN
     793          40 :          n1 = SIZE(basis%am, 1)
     794          40 :          n2 = SIZE(basis%am, 2)
     795         160 :          ALLOCATE (gbasis%am(n1, 0:n2 - 1))
     796        4840 :          gbasis%am = basis%am
     797             :       END IF
     798          40 :       IF (ASSOCIATED(basis%cm)) THEN
     799           0 :          n1 = SIZE(basis%cm, 1)
     800           0 :          n2 = SIZE(basis%cm, 2)
     801           0 :          n3 = SIZE(basis%cm, 3)
     802           0 :          ALLOCATE (gbasis%cm(n1, n2, 0:n3 - 1))
     803           0 :          gbasis%cm = basis%cm
     804             :       END IF
     805          40 :       IF (ASSOCIATED(basis%as)) THEN
     806           0 :          n1 = SIZE(basis%as, 1)
     807           0 :          n2 = SIZE(basis%as, 2)
     808           0 :          ALLOCATE (gbasis%as(n1, 0:n2 - 1))
     809           0 :          gbasis%as = basis%as
     810             :       END IF
     811          40 :       IF (ASSOCIATED(basis%ns)) THEN
     812           0 :          n1 = SIZE(basis%ns, 1)
     813           0 :          n2 = SIZE(basis%ns, 2)
     814           0 :          ALLOCATE (gbasis%ns(n1, 0:n2 - 1))
     815           0 :          gbasis%ns = basis%ns
     816             :       END IF
     817          40 :       gbasis%eps_eig = basis%eps_eig
     818          40 :       gbasis%geometrical = basis%geometrical
     819          40 :       gbasis%aval = basis%aval
     820          40 :       gbasis%cval = basis%cval
     821         280 :       gbasis%start(0:lmat) = basis%start(0:lmat)
     822             : 
     823             :       ! get information on quadrature type and number of grid points
     824             :       ! allocate and initialize the atomic grid
     825          40 :       NULLIFY (gbasis%grid)
     826          40 :       CALL allocate_grid_atom(gbasis%grid)
     827          40 :       ngp = SIZE(r)
     828          40 :       quadtype = do_gapw_log
     829          40 :       IF (ngp <= 0) &
     830           0 :          CPABORT("# point radial grid < 0")
     831          40 :       CALL create_grid_atom(gbasis%grid, ngp, 1, 1, 0, quadtype)
     832          40 :       gbasis%grid%nr = ngp
     833       38436 :       gbasis%grid%rad(:) = r(:)
     834       38436 :       gbasis%grid%rad2(:) = r(:)*r(:)
     835       38436 :       gbasis%grid%wr(:) = rab(:)*gbasis%grid%rad2(:)
     836             : 
     837             :       ! initialize basis function on a radial grid
     838          40 :       nr = gbasis%grid%nr
     839         280 :       m = MAXVAL(gbasis%nbas)
     840         200 :       ALLOCATE (gbasis%bf(nr, m, 0:lmat))
     841         120 :       ALLOCATE (gbasis%dbf(nr, m, 0:lmat))
     842         120 :       ALLOCATE (gbasis%ddbf(nr, m, 0:lmat))
     843     4428280 :       gbasis%bf = 0._dp
     844     4428280 :       gbasis%dbf = 0._dp
     845     4428280 :       gbasis%ddbf = 0._dp
     846             : 
     847          40 :       SELECT CASE (gbasis%basis_type)
     848             :       CASE DEFAULT
     849           0 :          CPABORT("")
     850             :       CASE (GTO_BASIS)
     851         280 :          DO l = 0, lmat
     852        4840 :             DO i = 1, gbasis%nbas(l)
     853        4560 :                al = gbasis%am(i, l)
     854     4428240 :                DO k = 1, nr
     855     4423440 :                   rk = gbasis%grid%rad(k)
     856     4423440 :                   ear = EXP(-al*gbasis%grid%rad(k)**2)
     857     4423440 :                   gbasis%bf(k, i, l) = rk**l*ear
     858     4423440 :                   gbasis%dbf(k, i, l) = (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear
     859             :                   gbasis%ddbf(k, i, l) = (REAL(l*(l - 1), dp)*rk**(l - 2) - &
     860     4428000 :                                           2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))*ear
     861             :                END DO
     862             :             END DO
     863             :          END DO
     864             :       CASE (CGTO_BASIS)
     865           0 :          DO l = 0, lmat
     866           0 :             DO i = 1, gbasis%nprim(l)
     867           0 :                al = gbasis%am(i, l)
     868           0 :                DO k = 1, nr
     869           0 :                   rk = gbasis%grid%rad(k)
     870           0 :                   ear = EXP(-al*gbasis%grid%rad(k)**2)
     871           0 :                   DO j = 1, gbasis%nbas(l)
     872           0 :                      gbasis%bf(k, j, l) = gbasis%bf(k, j, l) + rk**l*ear*gbasis%cm(i, j, l)
     873             :                      gbasis%dbf(k, j, l) = gbasis%dbf(k, j, l) &
     874           0 :                                            + (REAL(l, dp)*rk**(l - 1) - 2._dp*al*rk**(l + 1))*ear*gbasis%cm(i, j, l)
     875             :                      gbasis%ddbf(k, j, l) = gbasis%ddbf(k, j, l) + &
     876             :                                     (REAL(l*(l - 1), dp)*rk**(l - 2) - 2._dp*al*REAL(2*l + 1, dp)*rk**(l) + 4._dp*al*rk**(l + 2))* &
     877           0 :                                             ear*gbasis%cm(i, j, l)
     878             :                   END DO
     879             :                END DO
     880             :             END DO
     881             :          END DO
     882             :       CASE (STO_BASIS)
     883           0 :          DO l = 0, lmat
     884           0 :             DO i = 1, gbasis%nbas(l)
     885           0 :                al = gbasis%as(i, l)
     886           0 :                nl = gbasis%ns(i, l)
     887           0 :                pf = (2._dp*al)**nl*SQRT(2._dp*al/fac(2*nl))
     888           0 :                DO k = 1, nr
     889           0 :                   rk = gbasis%grid%rad(k)
     890           0 :                   ear = rk**(nl - 1)*EXP(-al*rk)
     891           0 :                   gbasis%bf(k, i, l) = pf*ear
     892           0 :                   gbasis%dbf(k, i, l) = pf*(REAL(nl - 1, dp)/rk - al)*ear
     893             :                   gbasis%ddbf(k, i, l) = pf*(REAL((nl - 2)*(nl - 1), dp)/rk/rk &
     894           0 :                                              - al*REAL(2*(nl - 1), dp)/rk + al*al)*ear
     895             :                END DO
     896             :             END DO
     897             :          END DO
     898             :       CASE (NUM_BASIS)
     899           0 :          gbasis%basis_type = NUM_BASIS
     900          40 :          CPABORT("")
     901             :       END SELECT
     902             : 
     903          40 :    END SUBROUTINE atom_basis_gridrep
     904             : 
     905             : ! **************************************************************************************************
     906             : !> \brief ...
     907             : !> \param basis ...
     908             : ! **************************************************************************************************
     909        9365 :    SUBROUTINE release_atom_basis(basis)
     910             :       TYPE(atom_basis_type), INTENT(INOUT)               :: basis
     911             : 
     912        9365 :       IF (ASSOCIATED(basis%am)) THEN
     913        9341 :          DEALLOCATE (basis%am)
     914             :       END IF
     915        9365 :       IF (ASSOCIATED(basis%cm)) THEN
     916        8607 :          DEALLOCATE (basis%cm)
     917             :       END IF
     918        9365 :       IF (ASSOCIATED(basis%as)) THEN
     919          24 :          DEALLOCATE (basis%as)
     920             :       END IF
     921        9365 :       IF (ASSOCIATED(basis%ns)) THEN
     922          24 :          DEALLOCATE (basis%ns)
     923             :       END IF
     924        9365 :       IF (ASSOCIATED(basis%bf)) THEN
     925        9365 :          DEALLOCATE (basis%bf)
     926             :       END IF
     927        9365 :       IF (ASSOCIATED(basis%dbf)) THEN
     928        9365 :          DEALLOCATE (basis%dbf)
     929             :       END IF
     930        9365 :       IF (ASSOCIATED(basis%ddbf)) THEN
     931        9365 :          DEALLOCATE (basis%ddbf)
     932             :       END IF
     933             : 
     934        9365 :       CALL deallocate_grid_atom(basis%grid)
     935             : 
     936        9365 :    END SUBROUTINE release_atom_basis
     937             : ! **************************************************************************************************
     938             : 
     939             : ! **************************************************************************************************
     940             : !> \brief ...
     941             : !> \param atom ...
     942             : ! **************************************************************************************************
     943        8984 :    SUBROUTINE create_atom_type(atom)
     944             :       TYPE(atom_type), POINTER                           :: atom
     945             : 
     946        8984 :       CPASSERT(.NOT. ASSOCIATED(atom))
     947             : 
     948        8984 :       ALLOCATE (atom)
     949             : 
     950             :       NULLIFY (atom%zmp_section)
     951             :       NULLIFY (atom%xc_section)
     952             :       NULLIFY (atom%fmat)
     953             :       atom%do_zmp = .FALSE.
     954             :       atom%doread = .FALSE.
     955             :       atom%read_vxc = .FALSE.
     956             :       atom%dm = .FALSE.
     957             :       atom%hfx_pot%scale_coulomb = 0.0_dp
     958             :       atom%hfx_pot%scale_longrange = 0.0_dp
     959             :       atom%hfx_pot%omega = 0.0_dp
     960             : 
     961        8984 :    END SUBROUTINE create_atom_type
     962             : 
     963             : ! **************************************************************************************************
     964             : !> \brief ...
     965             : !> \param atom ...
     966             : ! **************************************************************************************************
     967        8984 :    SUBROUTINE release_atom_type(atom)
     968             :       TYPE(atom_type), POINTER                           :: atom
     969             : 
     970        8984 :       CPASSERT(ASSOCIATED(atom))
     971             : 
     972        8984 :       NULLIFY (atom%basis)
     973        8984 :       NULLIFY (atom%integrals)
     974        8984 :       IF (ASSOCIATED(atom%state)) THEN
     975        8966 :          DEALLOCATE (atom%state)
     976             :       END IF
     977        8984 :       IF (ASSOCIATED(atom%orbitals)) THEN
     978        8958 :          CALL release_atom_orbs(atom%orbitals)
     979             :       END IF
     980             : 
     981        8984 :       IF (ASSOCIATED(atom%fmat)) CALL release_opmat(atom%fmat)
     982             : 
     983        8984 :       DEALLOCATE (atom)
     984             : 
     985        8984 :    END SUBROUTINE release_atom_type
     986             : 
     987             : ! ZMP adding input variables in subroutine do_zmp,doread,read_vxc,method_type
     988             : ! **************************************************************************************************
     989             : !> \brief ...
     990             : !> \param atom ...
     991             : !> \param basis ...
     992             : !> \param state ...
     993             : !> \param integrals ...
     994             : !> \param orbitals ...
     995             : !> \param potential ...
     996             : !> \param zcore ...
     997             : !> \param pp_calc ...
     998             : !> \param do_zmp ...
     999             : !> \param doread ...
    1000             : !> \param read_vxc ...
    1001             : !> \param method_type ...
    1002             : !> \param relativistic ...
    1003             : !> \param coulomb_integral_type ...
    1004             : !> \param exchange_integral_type ...
    1005             : !> \param fmat ...
    1006             : ! **************************************************************************************************
    1007       69698 :    SUBROUTINE set_atom(atom, basis, state, integrals, orbitals, potential, zcore, pp_calc, do_zmp, doread, &
    1008             :                        read_vxc, method_type, relativistic, coulomb_integral_type, exchange_integral_type, fmat)
    1009             :       TYPE(atom_type), POINTER                           :: atom
    1010             :       TYPE(atom_basis_type), OPTIONAL, POINTER           :: basis
    1011             :       TYPE(atom_state), OPTIONAL, POINTER                :: state
    1012             :       TYPE(atom_integrals), OPTIONAL, POINTER            :: integrals
    1013             :       TYPE(atom_orbitals), OPTIONAL, POINTER             :: orbitals
    1014             :       TYPE(atom_potential_type), OPTIONAL, POINTER       :: potential
    1015             :       INTEGER, INTENT(IN), OPTIONAL                      :: zcore
    1016             :       LOGICAL, INTENT(IN), OPTIONAL                      :: pp_calc, do_zmp, doread, read_vxc
    1017             :       INTEGER, INTENT(IN), OPTIONAL                      :: method_type, relativistic, &
    1018             :                                                             coulomb_integral_type, &
    1019             :                                                             exchange_integral_type
    1020             :       TYPE(opmat_type), OPTIONAL, POINTER                :: fmat
    1021             : 
    1022       69698 :       CPASSERT(ASSOCIATED(atom))
    1023             : 
    1024       69698 :       IF (PRESENT(basis)) atom%basis => basis
    1025       69698 :       IF (PRESENT(state)) atom%state => state
    1026       69698 :       IF (PRESENT(integrals)) atom%integrals => integrals
    1027       69698 :       IF (PRESENT(orbitals)) atom%orbitals => orbitals
    1028       69698 :       IF (PRESENT(potential)) atom%potential => potential
    1029       69698 :       IF (PRESENT(zcore)) atom%zcore = zcore
    1030       69698 :       IF (PRESENT(pp_calc)) atom%pp_calc = pp_calc
    1031             : ! ZMP assigning variable values if present
    1032       69698 :       IF (PRESENT(do_zmp)) atom%do_zmp = do_zmp
    1033       69698 :       IF (PRESENT(doread)) atom%doread = doread
    1034       69698 :       IF (PRESENT(read_vxc)) atom%read_vxc = read_vxc
    1035             : 
    1036       69698 :       IF (PRESENT(method_type)) atom%method_type = method_type
    1037       69698 :       IF (PRESENT(relativistic)) atom%relativistic = relativistic
    1038       69698 :       IF (PRESENT(coulomb_integral_type)) atom%coulomb_integral_type = coulomb_integral_type
    1039       69698 :       IF (PRESENT(exchange_integral_type)) atom%exchange_integral_type = exchange_integral_type
    1040             : 
    1041       69698 :       IF (PRESENT(fmat)) THEN
    1042       11312 :          IF (ASSOCIATED(atom%fmat)) CALL release_opmat(atom%fmat)
    1043       11312 :          atom%fmat => fmat
    1044             :       END IF
    1045             : 
    1046       69698 :    END SUBROUTINE set_atom
    1047             : 
    1048             : ! **************************************************************************************************
    1049             : !> \brief ...
    1050             : !> \param orbs ...
    1051             : !> \param mbas ...
    1052             : !> \param mo ...
    1053             : ! **************************************************************************************************
    1054        8961 :    SUBROUTINE create_atom_orbs(orbs, mbas, mo)
    1055             :       TYPE(atom_orbitals), POINTER                       :: orbs
    1056             :       INTEGER, INTENT(IN)                                :: mbas, mo
    1057             : 
    1058        8961 :       CPASSERT(.NOT. ASSOCIATED(orbs))
    1059             : 
    1060        8961 :       ALLOCATE (orbs)
    1061             : 
    1062       97715 :       ALLOCATE (orbs%wfn(mbas, mo, 0:lmat), orbs%wfna(mbas, mo, 0:lmat), orbs%wfnb(mbas, mo, 0:lmat))
    1063      477939 :       orbs%wfn = 0._dp
    1064      477939 :       orbs%wfna = 0._dp
    1065      477939 :       orbs%wfnb = 0._dp
    1066             : 
    1067       98523 :       ALLOCATE (orbs%pmat(mbas, mbas, 0:lmat), orbs%pmata(mbas, mbas, 0:lmat), orbs%pmatb(mbas, mbas, 0:lmat))
    1068     2314623 :       orbs%pmat = 0._dp
    1069     2314623 :       orbs%pmata = 0._dp
    1070     2314623 :       orbs%pmatb = 0._dp
    1071             : 
    1072       61897 :       ALLOCATE (orbs%ener(mo, 0:lmat), orbs%enera(mo, 0:lmat), orbs%enerb(mo, 0:lmat))
    1073      125283 :       orbs%ener = 0._dp
    1074      125283 :       orbs%enera = 0._dp
    1075      125283 :       orbs%enerb = 0._dp
    1076             : 
    1077       70858 :       ALLOCATE (orbs%refene(mo, 0:lmat, 2), orbs%refchg(mo, 0:lmat, 2), orbs%refnod(mo, 0:lmat, 2))
    1078      259527 :       orbs%refene = 0._dp
    1079      259527 :       orbs%refchg = 0._dp
    1080      259527 :       orbs%refnod = 0._dp
    1081       61731 :       ALLOCATE (orbs%wrefene(mo, 0:lmat, 2), orbs%wrefchg(mo, 0:lmat, 2), orbs%wrefnod(mo, 0:lmat, 2))
    1082      259527 :       orbs%wrefene = 0._dp
    1083      259527 :       orbs%wrefchg = 0._dp
    1084      259527 :       orbs%wrefnod = 0._dp
    1085       61731 :       ALLOCATE (orbs%crefene(mo, 0:lmat, 2), orbs%crefchg(mo, 0:lmat, 2), orbs%crefnod(mo, 0:lmat, 2))
    1086      259527 :       orbs%crefene = 0._dp
    1087      259527 :       orbs%crefchg = 0._dp
    1088      259527 :       orbs%crefnod = 0._dp
    1089       26551 :       ALLOCATE (orbs%rcmax(mo, 0:lmat, 2))
    1090      259527 :       orbs%rcmax = 0._dp
    1091       44307 :       ALLOCATE (orbs%wpsir0(mo, 2), orbs%tpsir0(mo, 2))
    1092       47735 :       orbs%wpsir0 = 0._dp
    1093       47735 :       orbs%tpsir0 = 0._dp
    1094       26717 :       ALLOCATE (orbs%reftype(mo, 0:lmat, 2))
    1095      259527 :       orbs%reftype = "XX"
    1096             : 
    1097        8961 :    END SUBROUTINE create_atom_orbs
    1098             : 
    1099             : ! **************************************************************************************************
    1100             : !> \brief ...
    1101             : !> \param orbs ...
    1102             : ! **************************************************************************************************
    1103        8961 :    SUBROUTINE release_atom_orbs(orbs)
    1104             :       TYPE(atom_orbitals), POINTER                       :: orbs
    1105             : 
    1106        8961 :       CPASSERT(ASSOCIATED(orbs))
    1107             : 
    1108        8961 :       IF (ASSOCIATED(orbs%wfn)) THEN
    1109        8961 :          DEALLOCATE (orbs%wfn, orbs%wfna, orbs%wfnb)
    1110             :       END IF
    1111        8961 :       IF (ASSOCIATED(orbs%pmat)) THEN
    1112        8961 :          DEALLOCATE (orbs%pmat, orbs%pmata, orbs%pmatb)
    1113             :       END IF
    1114        8961 :       IF (ASSOCIATED(orbs%ener)) THEN
    1115        8961 :          DEALLOCATE (orbs%ener, orbs%enera, orbs%enerb)
    1116             :       END IF
    1117        8961 :       IF (ASSOCIATED(orbs%refene)) THEN
    1118        8961 :          DEALLOCATE (orbs%refene)
    1119             :       END IF
    1120        8961 :       IF (ASSOCIATED(orbs%refchg)) THEN
    1121        8961 :          DEALLOCATE (orbs%refchg)
    1122             :       END IF
    1123        8961 :       IF (ASSOCIATED(orbs%refnod)) THEN
    1124        8961 :          DEALLOCATE (orbs%refnod)
    1125             :       END IF
    1126        8961 :       IF (ASSOCIATED(orbs%wrefene)) THEN
    1127        8961 :          DEALLOCATE (orbs%wrefene)
    1128             :       END IF
    1129        8961 :       IF (ASSOCIATED(orbs%wrefchg)) THEN
    1130        8961 :          DEALLOCATE (orbs%wrefchg)
    1131             :       END IF
    1132        8961 :       IF (ASSOCIATED(orbs%wrefnod)) THEN
    1133        8961 :          DEALLOCATE (orbs%wrefnod)
    1134             :       END IF
    1135        8961 :       IF (ASSOCIATED(orbs%crefene)) THEN
    1136        8961 :          DEALLOCATE (orbs%crefene)
    1137             :       END IF
    1138        8961 :       IF (ASSOCIATED(orbs%crefchg)) THEN
    1139        8961 :          DEALLOCATE (orbs%crefchg)
    1140             :       END IF
    1141        8961 :       IF (ASSOCIATED(orbs%crefnod)) THEN
    1142        8961 :          DEALLOCATE (orbs%crefnod)
    1143             :       END IF
    1144        8961 :       IF (ASSOCIATED(orbs%rcmax)) THEN
    1145        8961 :          DEALLOCATE (orbs%rcmax)
    1146             :       END IF
    1147        8961 :       IF (ASSOCIATED(orbs%wpsir0)) THEN
    1148        8961 :          DEALLOCATE (orbs%wpsir0)
    1149             :       END IF
    1150        8961 :       IF (ASSOCIATED(orbs%tpsir0)) THEN
    1151        8961 :          DEALLOCATE (orbs%tpsir0)
    1152             :       END IF
    1153        8961 :       IF (ASSOCIATED(orbs%reftype)) THEN
    1154        8961 :          DEALLOCATE (orbs%reftype)
    1155             :       END IF
    1156             : 
    1157        8961 :       DEALLOCATE (orbs)
    1158             : 
    1159        8961 :    END SUBROUTINE release_atom_orbs
    1160             : 
    1161             : ! **************************************************************************************************
    1162             : !> \brief ...
    1163             : !> \param hf_frac ...
    1164             : !> \param do_hfx ...
    1165             : !> \param atom ...
    1166             : !> \param xc_section ...
    1167             : !> \param extype ...
    1168             : ! **************************************************************************************************
    1169       11312 :    SUBROUTINE setup_hf_section(hf_frac, do_hfx, atom, xc_section, extype)
    1170             :       REAL(KIND=dp), INTENT(OUT)                         :: hf_frac
    1171             :       LOGICAL, INTENT(OUT)                               :: do_hfx
    1172             :       TYPE(atom_type), INTENT(IN), POINTER               :: atom
    1173             :       TYPE(section_vals_type), POINTER                   :: xc_section
    1174             :       INTEGER, INTENT(IN)                                :: extype
    1175             : 
    1176             :       INTEGER                                            :: i, j, nr, nu, pot_type
    1177             :       REAL(KIND=dp)                                      :: scale_coulomb, scale_longrange
    1178       11312 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:)           :: abscissa, weights
    1179             :       TYPE(section_vals_type), POINTER                   :: hf_sub_section, hfx_sections
    1180             : 
    1181       11312 :       hf_frac = 0._dp
    1182       11312 :       IF (ASSOCIATED(atom%xc_section)) THEN
    1183        2904 :          xc_section => atom%xc_section
    1184        2904 :          hfx_sections => section_vals_get_subs_vals(xc_section, "HF")
    1185        2904 :          CALL section_vals_get(hfx_sections, explicit=do_hfx)
    1186             : 
    1187             :          ! If nothing has been set explicitly, assume a Coulomb potential
    1188        2904 :          atom%hfx_pot%scale_longrange = 0.0_dp
    1189        2904 :          atom%hfx_pot%scale_coulomb = 1.0_dp
    1190             : 
    1191        2904 :          IF (do_hfx) THEN
    1192         135 :             CALL section_vals_val_get(hfx_sections, "FRACTION", r_val=hf_frac)
    1193             : 
    1194             :             ! Get potential info
    1195         135 :             hf_sub_section => section_vals_get_subs_vals(hfx_sections, "INTERACTION_POTENTIAL", i_rep_section=1)
    1196         135 :             CALL section_vals_val_get(hf_sub_section, "POTENTIAL_TYPE", i_val=pot_type)
    1197         135 :             CALL section_vals_val_get(hf_sub_section, "OMEGA", r_val=atom%hfx_pot%omega)
    1198         135 :             CALL section_vals_val_get(hf_sub_section, "SCALE_COULOMB", r_val=scale_coulomb)
    1199         135 :             CALL section_vals_val_get(hf_sub_section, "SCALE_LONGRANGE", r_val=scale_longrange)
    1200             : 
    1201             :             ! Setup atomic hfx potential
    1202           0 :             SELECT CASE (pot_type)
    1203             :             CASE DEFAULT
    1204           0 :                CPWARN("Potential not implemented, use Coulomb instead!")
    1205             :             CASE (do_potential_coulomb)
    1206          84 :                atom%hfx_pot%scale_longrange = 0.0_dp
    1207          84 :                atom%hfx_pot%scale_coulomb = scale_coulomb
    1208             :             CASE (do_potential_long)
    1209          51 :                atom%hfx_pot%scale_coulomb = 0.0_dp
    1210          51 :                atom%hfx_pot%scale_longrange = scale_longrange
    1211             :             CASE (do_potential_short)
    1212           0 :                atom%hfx_pot%scale_coulomb = 1.0_dp
    1213           0 :                atom%hfx_pot%scale_longrange = -1.0_dp
    1214             :             CASE (do_potential_mix_cl)
    1215           0 :                atom%hfx_pot%scale_coulomb = scale_coulomb
    1216         135 :                atom%hfx_pot%scale_longrange = scale_longrange
    1217             :             END SELECT
    1218             :          END IF
    1219             : 
    1220             :          ! Check whether extype is supported
    1221        2904 :          IF (atom%hfx_pot%scale_longrange /= 0.0_dp .AND. extype /= do_numeric .AND. extype /= do_semi_analytic) THEN
    1222           0 :             CPABORT("Only numerical and semi-analytic lrHF exchange available!")
    1223             :          END IF
    1224             : 
    1225        2904 :          IF (atom%hfx_pot%scale_longrange /= 0.0_dp .AND. extype == do_numeric .AND. .NOT. ALLOCATED(atom%hfx_pot%kernel)) THEN
    1226           6 :             CALL cite_reference(Limpanuparb2011)
    1227             : 
    1228           6 :             IF (atom%hfx_pot%do_gh) THEN
    1229             :                ! Setup kernel for Ewald operator
    1230             :                ! Because of the high computational costs of its calculation, we precalculate it here
    1231             :                ! Use Gauss-Hermite grid instead of the external grid
    1232          12 :                ALLOCATE (weights(atom%hfx_pot%nr_gh), abscissa(atom%hfx_pot%nr_gh))
    1233           3 :                CALL get_gauss_hermite_weights(abscissa, weights, atom%hfx_pot%nr_gh)
    1234             : 
    1235           3 :                nr = atom%basis%grid%nr
    1236          15 :                ALLOCATE (atom%hfx_pot%kernel(nr, atom%hfx_pot%nr_gh, 0:atom%state%maxl_calc + atom%state%maxl_occ))
    1237      321215 :                atom%hfx_pot%kernel = 0.0_dp
    1238          15 :                DO nu = 0, atom%state%maxl_calc + atom%state%maxl_occ
    1239        1215 :                   DO i = 1, atom%hfx_pot%nr_gh
    1240      321212 :                      DO j = 1, nr
    1241             :                         atom%hfx_pot%kernel(j, i, nu) = bessel0(2.0_dp*atom%hfx_pot%omega &
    1242      321200 :                                                                 *abscissa(i)*atom%basis%grid%rad(j), nu)*SQRT(weights(i))
    1243             :                      END DO
    1244             :                   END DO
    1245             :                END DO
    1246             :             ELSE
    1247             :                ! Setup kernel for Ewald operator
    1248             :                ! Because of the high computational costs of its calculation, we precalculate it here
    1249             :                ! Choose it symmetric to further reduce the costs
    1250           3 :                nr = atom%basis%grid%nr
    1251          15 :                ALLOCATE (atom%hfx_pot%kernel(nr, nr, 0:atom%state%maxl_calc + atom%state%maxl_occ))
    1252      963215 :                atom%hfx_pot%kernel = 0.0_dp
    1253          15 :                DO nu = 0, atom%state%maxl_calc + atom%state%maxl_occ
    1254        3215 :                   DO i = 1, nr
    1255      484812 :                      DO j = 1, i
    1256             :                         atom%hfx_pot%kernel(j, i, nu) = bessel0(2.0_dp*atom%hfx_pot%omega &
    1257      484800 :                                                                 *atom%basis%grid%rad(i)*atom%basis%grid%rad(j), nu)
    1258             :                      END DO
    1259             :                   END DO
    1260             :                END DO
    1261             :             END IF
    1262             :          END IF
    1263             :       ELSE
    1264        8408 :          NULLIFY (xc_section)
    1265        8408 :          do_hfx = .FALSE.
    1266             :       END IF
    1267             : 
    1268       11312 :    END SUBROUTINE setup_hf_section
    1269             : 
    1270             : ! **************************************************************************************************
    1271             : !> \brief ...
    1272             : !> \param abscissa ...
    1273             : !> \param weights ...
    1274             : !> \param nn ...
    1275             : ! **************************************************************************************************
    1276           3 :    SUBROUTINE get_gauss_hermite_weights(abscissa, weights, nn)
    1277             :       REAL(KIND=dp), DIMENSION(:), INTENT(OUT)           :: abscissa, weights
    1278             :       INTEGER, INTENT(IN)                                :: nn
    1279             : 
    1280             :       INTEGER                                            :: counter, ii, info, liwork, lwork
    1281           3 :       INTEGER, ALLOCATABLE, DIMENSION(:)                 :: iwork
    1282           3 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:)           :: diag, subdiag, work
    1283           3 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: eigenvec
    1284             : 
    1285             :       ! Setup matrix for Golub-Welsch-algorithm to determine roots and weights of Gauss-Hermite quadrature
    1286             :       ! If necessary, one can setup matrices differently for other quadratures
    1287          24 :       ALLOCATE (work(1), iwork(1), diag(2*nn), subdiag(2*nn - 1), eigenvec(2*nn, 2*nn))
    1288           3 :       lwork = -1
    1289           3 :       liwork = -1
    1290         603 :       diag = 0.0_dp
    1291         600 :       DO ii = 1, 2*nn - 1
    1292         600 :          subdiag(ii) = SQRT(REAL(ii, KIND=dp)/2.0_dp)
    1293             :       END DO
    1294             : 
    1295             :       ! Get correct size for working matrices
    1296           3 :       CALL DSTEVD('V', 2*nn, diag, subdiag, eigenvec, 2*nn, work, lwork, iwork, liwork, info)
    1297           3 :       IF (info /= 0) THEN
    1298             :          ! This should not happen!
    1299           0 :          CPABORT('Finding size of working matrices failed!')
    1300             :       END IF
    1301             : 
    1302             :       ! Setup working matrices with their respective optimal sizes
    1303           3 :       lwork = INT(work(1))
    1304           3 :       liwork = iwork(1)
    1305           3 :       DEALLOCATE (work, iwork)
    1306          15 :       ALLOCATE (work(lwork), iwork(liwork))
    1307             : 
    1308             :       ! Perform the actual eigenvalue decomposition
    1309           3 :       CALL DSTEVD('V', 2*nn, diag, subdiag, eigenvec, 2*nn, work, lwork, iwork, liwork, info)
    1310           3 :       IF (info /= 0) THEN
    1311             :          ! This should not happen for the usual values of nn! (Checked for nn = 2000)
    1312           0 :          CPABORT('Eigenvalue decomposition failed!')
    1313             :       END IF
    1314             : 
    1315           3 :       DEALLOCATE (work, iwork, subdiag)
    1316             : 
    1317             :       ! Identify positive roots of hermite polynomials (zeros of Hermite polynomials are symmetric wrt the origin)
    1318             :       ! We will only keep the positive roots
    1319           3 :       counter = 0
    1320         603 :       DO ii = 1, 2*nn
    1321         603 :          IF (diag(ii) > 0.0_dp) THEN
    1322         300 :             counter = counter + 1
    1323         300 :             abscissa(counter) = diag(ii)
    1324         300 :             weights(counter) = rootpi*eigenvec(1, ii)**2
    1325             :          END IF
    1326             :       END DO
    1327           3 :       IF (counter /= nn) THEN
    1328           0 :          CPABORT('Have not found enough or too many zeros!')
    1329             :       END IF
    1330             : 
    1331           3 :    END SUBROUTINE get_gauss_hermite_weights
    1332             : 
    1333             : ! **************************************************************************************************
    1334             : !> \brief ...
    1335             : !> \param opmat ...
    1336             : !> \param n ...
    1337             : !> \param lmax ...
    1338             : ! **************************************************************************************************
    1339       57101 :    SUBROUTINE create_opmat(opmat, n, lmax)
    1340             :       TYPE(opmat_type), POINTER                          :: opmat
    1341             :       INTEGER, DIMENSION(0:lmat), INTENT(IN)             :: n
    1342             :       INTEGER, INTENT(IN), OPTIONAL                      :: lmax
    1343             : 
    1344             :       INTEGER                                            :: lm, m
    1345             : 
    1346      399707 :       m = MAXVAL(n)
    1347       57101 :       IF (PRESENT(lmax)) THEN
    1348          34 :          lm = lmax
    1349             :       ELSE
    1350             :          lm = lmat
    1351             :       END IF
    1352             : 
    1353       57101 :       CPASSERT(.NOT. ASSOCIATED(opmat))
    1354             : 
    1355      456808 :       ALLOCATE (opmat)
    1356             : 
    1357      399707 :       opmat%n = n
    1358      285465 :       ALLOCATE (opmat%op(m, m, 0:lm))
    1359    18221963 :       opmat%op = 0._dp
    1360             : 
    1361       57101 :    END SUBROUTINE create_opmat
    1362             : 
    1363             : ! **************************************************************************************************
    1364             : !> \brief ...
    1365             : !> \param opmat ...
    1366             : ! **************************************************************************************************
    1367       57101 :    SUBROUTINE release_opmat(opmat)
    1368             :       TYPE(opmat_type), POINTER                          :: opmat
    1369             : 
    1370       57101 :       CPASSERT(ASSOCIATED(opmat))
    1371             : 
    1372      399707 :       opmat%n = 0
    1373       57101 :       DEALLOCATE (opmat%op)
    1374             : 
    1375       57101 :       DEALLOCATE (opmat)
    1376             : 
    1377       57101 :    END SUBROUTINE release_opmat
    1378             : 
    1379             : ! **************************************************************************************************
    1380             : !> \brief ...
    1381             : !> \param opgrid ...
    1382             : !> \param grid ...
    1383             : ! **************************************************************************************************
    1384       22932 :    SUBROUTINE create_opgrid(opgrid, grid)
    1385             :       TYPE(opgrid_type), POINTER                         :: opgrid
    1386             :       TYPE(grid_atom_type), POINTER                      :: grid
    1387             : 
    1388             :       INTEGER                                            :: nr
    1389             : 
    1390       22932 :       CPASSERT(.NOT. ASSOCIATED(opgrid))
    1391             : 
    1392       22932 :       ALLOCATE (opgrid)
    1393             : 
    1394       22932 :       opgrid%grid => grid
    1395             : 
    1396       22932 :       nr = grid%nr
    1397             : 
    1398       68796 :       ALLOCATE (opgrid%op(nr))
    1399     9199272 :       opgrid%op = 0._dp
    1400             : 
    1401       22932 :    END SUBROUTINE create_opgrid
    1402             : 
    1403             : ! **************************************************************************************************
    1404             : !> \brief ...
    1405             : !> \param opgrid ...
    1406             : ! **************************************************************************************************
    1407       22932 :    SUBROUTINE release_opgrid(opgrid)
    1408             :       TYPE(opgrid_type), POINTER                         :: opgrid
    1409             : 
    1410       22932 :       CPASSERT(ASSOCIATED(opgrid))
    1411             : 
    1412       22932 :       NULLIFY (opgrid%grid)
    1413       22932 :       DEALLOCATE (opgrid%op)
    1414             : 
    1415       22932 :       DEALLOCATE (opgrid)
    1416             : 
    1417       22932 :    END SUBROUTINE release_opgrid
    1418             : 
    1419             : ! **************************************************************************************************
    1420             : !> \brief ...
    1421             : !> \param zval ...
    1422             : !> \param cval ...
    1423             : !> \param aval ...
    1424             : !> \param ngto ...
    1425             : !> \param ival ...
    1426             : ! **************************************************************************************************
    1427         156 :    SUBROUTINE Clementi_geobas(zval, cval, aval, ngto, ival)
    1428             :       INTEGER, INTENT(IN)                                :: zval
    1429             :       REAL(dp), INTENT(OUT)                              :: cval, aval
    1430             :       INTEGER, DIMENSION(0:lmat), INTENT(OUT)            :: ngto, ival
    1431             : 
    1432         156 :       ngto = 0
    1433         156 :       ival = 0
    1434         156 :       cval = 0._dp
    1435         156 :       aval = 0._dp
    1436             : 
    1437         156 :       SELECT CASE (zval)
    1438             :       CASE DEFAULT
    1439           0 :          CPABORT("")
    1440             :       CASE (1) ! this is from the general geometrical basis and extended
    1441          28 :          cval = 2.0_dp
    1442          28 :          aval = 0.016_dp
    1443          28 :          ngto(0) = 20
    1444             :       CASE (2)
    1445          12 :          cval = 2.14774520_dp
    1446          12 :          aval = 0.04850670_dp
    1447          12 :          ngto(0) = 20
    1448             :       CASE (3)
    1449           4 :          cval = 2.08932430_dp
    1450           4 :          aval = 0.02031060_dp
    1451           4 :          ngto(0) = 23
    1452             :       CASE (4)
    1453           0 :          cval = 2.09753060_dp
    1454           0 :          aval = 0.03207070_dp
    1455           0 :          ngto(0) = 23
    1456             :       CASE (5)
    1457           0 :          cval = 2.10343410_dp
    1458           0 :          aval = 0.03591970_dp
    1459           0 :          ngto(0) = 23
    1460           0 :          ngto(1) = 16
    1461             :       CASE (6)
    1462          30 :          cval = 2.10662820_dp
    1463          30 :          aval = 0.05292410_dp
    1464          30 :          ngto(0) = 23
    1465          30 :          ngto(1) = 16
    1466             :       CASE (7)
    1467           2 :          cval = 2.13743840_dp
    1468           2 :          aval = 0.06291970_dp
    1469           2 :          ngto(0) = 23
    1470           2 :          ngto(1) = 16
    1471             :       CASE (8)
    1472          32 :          cval = 2.08687310_dp
    1473          32 :          aval = 0.08350860_dp
    1474          32 :          ngto(0) = 23
    1475          32 :          ngto(1) = 16
    1476             :       CASE (9)
    1477           0 :          cval = 2.12318180_dp
    1478           0 :          aval = 0.09899170_dp
    1479           0 :          ngto(0) = 23
    1480           0 :          ngto(1) = 16
    1481             :       CASE (10)
    1482           0 :          cval = 2.13164810_dp
    1483           0 :          aval = 0.11485350_dp
    1484           0 :          ngto(0) = 23
    1485           0 :          ngto(1) = 16
    1486             :       CASE (11)
    1487           0 :          cval = 2.11413310_dp
    1488           0 :          aval = 0.00922630_dp
    1489           0 :          ngto(0) = 26
    1490           0 :          ngto(1) = 16
    1491           0 :          ival(1) = 4
    1492             :       CASE (12)
    1493           0 :          cval = 2.12183620_dp
    1494           0 :          aval = 0.01215850_dp
    1495           0 :          ngto(0) = 26
    1496           0 :          ngto(1) = 16
    1497           0 :          ival(1) = 4
    1498             :       CASE (13)
    1499           0 :          cval = 2.06073230_dp
    1500           0 :          aval = 0.01449350_dp
    1501           0 :          ngto(0) = 26
    1502           0 :          ngto(1) = 20
    1503           0 :          ival(0) = 1
    1504             :       CASE (14)
    1505           0 :          cval = 2.08563660_dp
    1506           0 :          aval = 0.01861460_dp
    1507           0 :          ngto(0) = 26
    1508           0 :          ngto(1) = 20
    1509           0 :          ival(0) = 1
    1510             :       CASE (15)
    1511           0 :          cval = 2.04879270_dp
    1512           0 :          aval = 0.02147790_dp
    1513           0 :          ngto(0) = 26
    1514           0 :          ngto(1) = 20
    1515           0 :          ival(0) = 1
    1516             :       CASE (16)
    1517           0 :          cval = 2.06216660_dp
    1518           0 :          aval = 0.01978920_dp
    1519           0 :          ngto(0) = 26
    1520           0 :          ngto(1) = 20
    1521           0 :          ival(0) = 1
    1522             :       CASE (17)
    1523           0 :          cval = 2.04628670_dp
    1524           0 :          aval = 0.02451470_dp
    1525           0 :          ngto(0) = 26
    1526           0 :          ngto(1) = 20
    1527           0 :          ival(0) = 1
    1528             :       CASE (18)
    1529           0 :          cval = 2.08675200_dp
    1530           0 :          aval = 0.02635040_dp
    1531           0 :          ngto(0) = 26
    1532           0 :          ngto(1) = 20
    1533           0 :          ival(0) = 1
    1534             :       CASE (19)
    1535           0 :          cval = 2.02715220_dp
    1536           0 :          aval = 0.01822040_dp
    1537           0 :          ngto(0) = 29
    1538           0 :          ngto(1) = 20
    1539           0 :          ival(1) = 2
    1540             :       CASE (20)
    1541           0 :          cval = 2.01465650_dp
    1542           0 :          aval = 0.01646570_dp
    1543           0 :          ngto(0) = 29
    1544           0 :          ngto(1) = 20
    1545           0 :          ival(1) = 2
    1546             :       CASE (21)
    1547           0 :          cval = 2.01605240_dp
    1548           0 :          aval = 0.01254190_dp
    1549           0 :          ngto(0) = 30
    1550           0 :          ngto(1) = 20
    1551           0 :          ngto(2) = 18
    1552           0 :          ival(1) = 2
    1553             :       CASE (22)
    1554           0 :          cval = 2.01800000_dp
    1555           0 :          aval = 0.01195490_dp
    1556           0 :          ngto(0) = 30
    1557           0 :          ngto(1) = 21
    1558           0 :          ngto(2) = 17
    1559           0 :          ival(1) = 2
    1560           0 :          ival(2) = 1
    1561             :       CASE (23)
    1562           2 :          cval = 1.98803560_dp
    1563           2 :          aval = 0.02492140_dp
    1564           2 :          ngto(0) = 30
    1565           2 :          ngto(1) = 21
    1566           2 :          ngto(2) = 17
    1567           2 :          ival(1) = 2
    1568           2 :          ival(2) = 1
    1569             :       CASE (24)
    1570           0 :          cval = 1.98984000_dp
    1571           0 :          aval = 0.02568400_dp
    1572           0 :          ngto(0) = 30
    1573           0 :          ngto(1) = 21
    1574           0 :          ngto(2) = 17
    1575           0 :          ival(1) = 2
    1576           0 :          ival(2) = 1
    1577             :       CASE (25)
    1578           0 :          cval = 2.01694380_dp
    1579           0 :          aval = 0.02664480_dp
    1580           0 :          ngto(0) = 30
    1581           0 :          ngto(1) = 21
    1582           0 :          ngto(2) = 17
    1583           0 :          ival(1) = 2
    1584           0 :          ival(2) = 1
    1585             :       CASE (26)
    1586           0 :          cval = 2.01824090_dp
    1587           0 :          aval = 0.01355000_dp
    1588           0 :          ngto(0) = 30
    1589           0 :          ngto(1) = 21
    1590           0 :          ngto(2) = 17
    1591           0 :          ival(1) = 2
    1592           0 :          ival(2) = 1
    1593             :       CASE (27)
    1594           0 :          cval = 1.98359400_dp
    1595           0 :          aval = 0.01702210_dp
    1596           0 :          ngto(0) = 30
    1597           0 :          ngto(1) = 21
    1598           0 :          ngto(2) = 17
    1599           0 :          ival(1) = 2
    1600           0 :          ival(2) = 2
    1601             :       CASE (28)
    1602           2 :          cval = 1.96797340_dp
    1603           2 :          aval = 0.02163180_dp
    1604           2 :          ngto(0) = 30
    1605           2 :          ngto(1) = 22
    1606           2 :          ngto(2) = 17
    1607           2 :          ival(1) = 3
    1608           2 :          ival(2) = 2
    1609             :       CASE (29)
    1610           0 :          cval = 1.98955180_dp
    1611           0 :          aval = 0.02304480_dp
    1612           0 :          ngto(0) = 30
    1613           0 :          ngto(1) = 20
    1614           0 :          ngto(2) = 17
    1615           0 :          ival(1) = 3
    1616           0 :          ival(2) = 2
    1617             :       CASE (30)
    1618           0 :          cval = 1.98074320_dp
    1619           0 :          aval = 0.02754320_dp
    1620           0 :          ngto(0) = 30
    1621           0 :          ngto(1) = 21
    1622           0 :          ngto(2) = 17
    1623           0 :          ival(1) = 3
    1624           0 :          ival(2) = 2
    1625             :       CASE (31)
    1626           0 :          cval = 2.00551070_dp
    1627           0 :          aval = 0.02005530_dp
    1628           0 :          ngto(0) = 30
    1629           0 :          ngto(1) = 23
    1630           0 :          ngto(2) = 17
    1631           0 :          ival(0) = 1
    1632           0 :          ival(2) = 2
    1633             :       CASE (32)
    1634           2 :          cval = 2.00000030_dp
    1635           2 :          aval = 0.02003000_dp
    1636           2 :          ngto(0) = 30
    1637           2 :          ngto(1) = 24
    1638           2 :          ngto(2) = 17
    1639           2 :          ival(0) = 1
    1640           2 :          ival(2) = 2
    1641             :       CASE (33)
    1642           0 :          cval = 2.00609100_dp
    1643           0 :          aval = 0.02055620_dp
    1644           0 :          ngto(0) = 30
    1645           0 :          ngto(1) = 23
    1646           0 :          ngto(2) = 17
    1647           0 :          ival(0) = 1
    1648           0 :          ival(2) = 2
    1649             :       CASE (34)
    1650           0 :          cval = 2.00701000_dp
    1651           0 :          aval = 0.02230400_dp
    1652           0 :          ngto(0) = 30
    1653           0 :          ngto(1) = 24
    1654           0 :          ngto(2) = 17
    1655           0 :          ival(0) = 1
    1656           0 :          ival(2) = 2
    1657             :       CASE (35)
    1658           0 :          cval = 2.01508710_dp
    1659           0 :          aval = 0.02685790_dp
    1660           0 :          ngto(0) = 30
    1661           0 :          ngto(1) = 24
    1662           0 :          ngto(2) = 17
    1663           0 :          ival(0) = 1
    1664           0 :          ival(2) = 2
    1665             :       CASE (36)
    1666           2 :          cval = 2.01960430_dp
    1667           2 :          aval = 0.02960430_dp
    1668           2 :          ngto(0) = 30
    1669           2 :          ngto(1) = 24
    1670           2 :          ngto(2) = 17
    1671           2 :          ival(0) = 1
    1672           2 :          ival(2) = 2
    1673             :       CASE (37)
    1674           2 :          cval = 2.00031000_dp
    1675           2 :          aval = 0.00768400_dp
    1676           2 :          ngto(0) = 32
    1677           2 :          ngto(1) = 25
    1678           2 :          ngto(2) = 17
    1679           2 :          ival(0) = 1
    1680           2 :          ival(1) = 1
    1681           2 :          ival(2) = 4
    1682             :       CASE (38)
    1683           0 :          cval = 1.99563960_dp
    1684           0 :          aval = 0.01401940_dp
    1685           0 :          ngto(0) = 33
    1686           0 :          ngto(1) = 24
    1687           0 :          ngto(2) = 17
    1688           0 :          ival(1) = 1
    1689           0 :          ival(2) = 4
    1690             :       CASE (39)
    1691           2 :          cval = 1.98971210_dp
    1692           2 :          aval = 0.01558470_dp
    1693           2 :          ngto(0) = 33
    1694           2 :          ngto(1) = 24
    1695           2 :          ngto(2) = 20
    1696           2 :          ival(1) = 1
    1697             :       CASE (40)
    1698           0 :          cval = 1.97976190_dp
    1699           0 :          aval = 0.01705520_dp
    1700           0 :          ngto(0) = 33
    1701           0 :          ngto(1) = 24
    1702           0 :          ngto(2) = 20
    1703           0 :          ival(1) = 1
    1704             :       CASE (41)
    1705           0 :          cval = 1.97989290_dp
    1706           0 :          aval = 0.01527040_dp
    1707           0 :          ngto(0) = 33
    1708           0 :          ngto(1) = 24
    1709           0 :          ngto(2) = 20
    1710           0 :          ival(1) = 1
    1711             :       CASE (42)
    1712           0 :          cval = 1.97909240_dp
    1713           0 :          aval = 0.01879720_dp
    1714           0 :          ngto(0) = 32
    1715           0 :          ngto(1) = 24
    1716           0 :          ngto(2) = 20
    1717           0 :          ival(1) = 1
    1718             :       CASE (43)
    1719           2 :          cval = 1.98508430_dp
    1720           2 :          aval = 0.01497550_dp
    1721           2 :          ngto(0) = 32
    1722           2 :          ngto(1) = 24
    1723           2 :          ngto(2) = 20
    1724           2 :          ival(1) = 2
    1725           2 :          ival(2) = 1
    1726             :       CASE (44)
    1727           0 :          cval = 1.98515010_dp
    1728           0 :          aval = 0.01856670_dp
    1729           0 :          ngto(0) = 32
    1730           0 :          ngto(1) = 24
    1731           0 :          ngto(2) = 20
    1732           0 :          ival(1) = 2
    1733           0 :          ival(2) = 1
    1734             :       CASE (45)
    1735           2 :          cval = 1.98502970_dp
    1736           2 :          aval = 0.01487000_dp
    1737           2 :          ngto(0) = 32
    1738           2 :          ngto(1) = 24
    1739           2 :          ngto(2) = 20
    1740           2 :          ival(1) = 2
    1741           2 :          ival(2) = 1
    1742             :       CASE (46)
    1743           0 :          cval = 1.97672850_dp
    1744           0 :          aval = 0.01762500_dp
    1745           0 :          ngto(0) = 30
    1746           0 :          ngto(1) = 24
    1747           0 :          ngto(2) = 20
    1748           0 :          ival(0) = 2
    1749           0 :          ival(1) = 2
    1750           0 :          ival(2) = 1
    1751             :       CASE (47)
    1752           0 :          cval = 1.97862730_dp
    1753           0 :          aval = 0.01863310_dp
    1754           0 :          ngto(0) = 32
    1755           0 :          ngto(1) = 24
    1756           0 :          ngto(2) = 20
    1757           0 :          ival(1) = 2
    1758           0 :          ival(2) = 1
    1759             :       CASE (48)
    1760           0 :          cval = 1.97990020_dp
    1761           0 :          aval = 0.01347150_dp
    1762           0 :          ngto(0) = 33
    1763           0 :          ngto(1) = 24
    1764           0 :          ngto(2) = 20
    1765           0 :          ival(1) = 2
    1766           0 :          ival(2) = 2
    1767             :       CASE (49)
    1768           0 :          cval = 1.97979410_dp
    1769           0 :          aval = 0.00890265_dp
    1770           0 :          ngto(0) = 33
    1771           0 :          ngto(1) = 27
    1772           0 :          ngto(2) = 20
    1773           0 :          ival(0) = 2
    1774           0 :          ival(2) = 2
    1775             :       CASE (50)
    1776           0 :          cval = 1.98001000_dp
    1777           0 :          aval = 0.00895215_dp
    1778           0 :          ngto(0) = 33
    1779           0 :          ngto(1) = 27
    1780           0 :          ngto(2) = 20
    1781           0 :          ival(0) = 2
    1782           0 :          ival(2) = 2
    1783             :       CASE (51)
    1784           0 :          cval = 1.97979980_dp
    1785           0 :          aval = 0.01490290_dp
    1786           0 :          ngto(0) = 33
    1787           0 :          ngto(1) = 26
    1788           0 :          ngto(2) = 20
    1789           0 :          ival(1) = 1
    1790           0 :          ival(2) = 2
    1791             :       CASE (52)
    1792           0 :          cval = 1.98009310_dp
    1793           0 :          aval = 0.01490390_dp
    1794           0 :          ngto(0) = 33
    1795           0 :          ngto(1) = 26
    1796           0 :          ngto(2) = 20
    1797           0 :          ival(1) = 1
    1798           0 :          ival(2) = 2
    1799             :       CASE (53)
    1800           0 :          cval = 1.97794750_dp
    1801           0 :          aval = 0.01425880_dp
    1802           0 :          ngto(0) = 33
    1803           0 :          ngto(1) = 26
    1804           0 :          ngto(2) = 20
    1805           0 :          ival(0) = 2
    1806           0 :          ival(1) = 1
    1807           0 :          ival(2) = 2
    1808             :       CASE (54)
    1809           0 :          cval = 1.97784450_dp
    1810           0 :          aval = 0.01430130_dp
    1811           0 :          ngto(0) = 33
    1812           0 :          ngto(1) = 26
    1813           0 :          ngto(2) = 20
    1814           0 :          ival(0) = 2
    1815           0 :          ival(1) = 1
    1816           0 :          ival(2) = 2
    1817             :       CASE (55)
    1818           0 :          cval = 1.97784450_dp
    1819           0 :          aval = 0.00499318_dp
    1820           0 :          ngto(0) = 32
    1821           0 :          ngto(1) = 25
    1822           0 :          ngto(2) = 17
    1823           0 :          ival(0) = 1
    1824           0 :          ival(1) = 3
    1825           0 :          ival(2) = 6
    1826             :       CASE (56)
    1827           2 :          cval = 1.97764820_dp
    1828           2 :          aval = 0.00500392_dp
    1829           2 :          ngto(0) = 32
    1830           2 :          ngto(1) = 25
    1831           2 :          ngto(2) = 17
    1832           2 :          ival(0) = 1
    1833           2 :          ival(1) = 3
    1834           2 :          ival(2) = 6
    1835             :       CASE (57)
    1836           2 :          cval = 1.97765150_dp
    1837           2 :          aval = 0.00557083_dp
    1838           2 :          ngto(0) = 32
    1839           2 :          ngto(1) = 25
    1840           2 :          ngto(2) = 20
    1841           2 :          ival(0) = 1
    1842           2 :          ival(1) = 3
    1843           2 :          ival(2) = 3
    1844             :       CASE (58)
    1845           0 :          cval = 1.97768750_dp
    1846           0 :          aval = 0.00547531_dp
    1847           0 :          ngto(0) = 32
    1848           0 :          ngto(1) = 25
    1849           0 :          ngto(2) = 20
    1850           0 :          ngto(3) = 16
    1851           0 :          ival(0) = 1
    1852           0 :          ival(1) = 3
    1853           0 :          ival(2) = 3
    1854           0 :          ival(3) = 3
    1855             :       CASE (59)
    1856           0 :          cval = 1.96986600_dp
    1857           0 :          aval = 0.00813143_dp
    1858           0 :          ngto(0) = 32
    1859           0 :          ngto(1) = 25
    1860           0 :          ngto(2) = 17
    1861           0 :          ngto(3) = 16
    1862           0 :          ival(0) = 1
    1863           0 :          ival(1) = 3
    1864           0 :          ival(2) = 6
    1865           0 :          ival(3) = 4
    1866             :       CASE (60)
    1867           0 :          cval = 1.97765720_dp
    1868           0 :          aval = 0.00489201_dp
    1869           0 :          ngto(0) = 32
    1870           0 :          ngto(1) = 25
    1871           0 :          ngto(2) = 17
    1872           0 :          ngto(3) = 16
    1873           0 :          ival(0) = 1
    1874           0 :          ival(1) = 3
    1875           0 :          ival(2) = 6
    1876           0 :          ival(3) = 4
    1877             :       CASE (61)
    1878           0 :          cval = 1.97768120_dp
    1879           0 :          aval = 0.00499000_dp
    1880           0 :          ngto(0) = 32
    1881           0 :          ngto(1) = 25
    1882           0 :          ngto(2) = 17
    1883           0 :          ngto(3) = 16
    1884           0 :          ival(0) = 1
    1885           0 :          ival(1) = 3
    1886           0 :          ival(2) = 6
    1887           0 :          ival(3) = 4
    1888             :       CASE (62)
    1889           0 :          cval = 1.97745700_dp
    1890           0 :          aval = 0.00615587_dp
    1891           0 :          ngto(0) = 32
    1892           0 :          ngto(1) = 25
    1893           0 :          ngto(2) = 17
    1894           0 :          ngto(3) = 16
    1895           0 :          ival(0) = 1
    1896           0 :          ival(1) = 3
    1897           0 :          ival(2) = 6
    1898           0 :          ival(3) = 4
    1899             :       CASE (63)
    1900           0 :          cval = 1.97570240_dp
    1901           0 :          aval = 0.00769959_dp
    1902           0 :          ngto(0) = 32
    1903           0 :          ngto(1) = 25
    1904           0 :          ngto(2) = 17
    1905           0 :          ngto(3) = 16
    1906           0 :          ival(0) = 1
    1907           0 :          ival(1) = 3
    1908           0 :          ival(2) = 6
    1909           0 :          ival(3) = 4
    1910             :       CASE (64)
    1911           0 :          cval = 1.97629350_dp
    1912           0 :          aval = 0.00706610_dp
    1913           0 :          ngto(0) = 32
    1914           0 :          ngto(1) = 25
    1915           0 :          ngto(2) = 20
    1916           0 :          ngto(3) = 16
    1917           0 :          ival(0) = 1
    1918           0 :          ival(1) = 3
    1919           0 :          ival(2) = 3
    1920           0 :          ival(3) = 4
    1921             :       CASE (65)
    1922           2 :          cval = 1.96900000_dp
    1923           2 :          aval = 0.01019150_dp
    1924           2 :          ngto(0) = 32
    1925           2 :          ngto(1) = 26
    1926           2 :          ngto(2) = 18
    1927           2 :          ngto(3) = 16
    1928           2 :          ival(0) = 1
    1929           2 :          ival(1) = 3
    1930           2 :          ival(2) = 6
    1931           2 :          ival(3) = 4
    1932             :       CASE (66)
    1933           0 :          cval = 1.97350000_dp
    1934           0 :          aval = 0.01334320_dp
    1935           0 :          ngto(0) = 33
    1936           0 :          ngto(1) = 26
    1937           0 :          ngto(2) = 18
    1938           0 :          ngto(3) = 16
    1939           0 :          ival(0) = 1
    1940           0 :          ival(1) = 3
    1941           0 :          ival(2) = 6
    1942           0 :          ival(3) = 4
    1943             :       CASE (67)
    1944           0 :          cval = 1.97493000_dp
    1945           0 :          aval = 0.01331360_dp
    1946           0 :          ngto(0) = 32
    1947           0 :          ngto(1) = 24
    1948           0 :          ngto(2) = 17
    1949           0 :          ngto(3) = 14
    1950           0 :          ival(1) = 2
    1951           0 :          ival(2) = 5
    1952           0 :          ival(3) = 4
    1953             :       CASE (68)
    1954           0 :          cval = 1.97597670_dp
    1955           0 :          aval = 0.01434040_dp
    1956           0 :          ngto(0) = 32
    1957           0 :          ngto(1) = 24
    1958           0 :          ngto(2) = 17
    1959           0 :          ngto(3) = 14
    1960             :          ival(0) = 0
    1961           0 :          ival(1) = 2
    1962           0 :          ival(2) = 5
    1963           0 :          ival(3) = 4
    1964             :       CASE (69)
    1965           0 :          cval = 1.97809240_dp
    1966           0 :          aval = 0.01529430_dp
    1967           0 :          ngto(0) = 32
    1968           0 :          ngto(1) = 24
    1969           0 :          ngto(2) = 17
    1970           0 :          ngto(3) = 14
    1971             :          ival(0) = 0
    1972           0 :          ival(1) = 2
    1973           0 :          ival(2) = 5
    1974           0 :          ival(3) = 4
    1975             :       CASE (70)
    1976           2 :          cval = 1.97644360_dp
    1977           2 :          aval = 0.01312770_dp
    1978           2 :          ngto(0) = 32
    1979           2 :          ngto(1) = 24
    1980           2 :          ngto(2) = 17
    1981           2 :          ngto(3) = 14
    1982             :          ival(0) = 0
    1983           2 :          ival(1) = 2
    1984           2 :          ival(2) = 5
    1985           2 :          ival(3) = 4
    1986             :       CASE (71)
    1987           2 :          cval = 1.96998000_dp
    1988           2 :          aval = 0.01745150_dp
    1989           2 :          ngto(0) = 31
    1990           2 :          ngto(1) = 24
    1991           2 :          ngto(2) = 20
    1992           2 :          ngto(3) = 14
    1993           2 :          ival(0) = 1
    1994           2 :          ival(1) = 2
    1995           2 :          ival(2) = 2
    1996           2 :          ival(3) = 4
    1997             :       CASE (72)
    1998           0 :          cval = 1.97223830_dp
    1999           0 :          aval = 0.01639750_dp
    2000           0 :          ngto(0) = 31
    2001           0 :          ngto(1) = 24
    2002           0 :          ngto(2) = 20
    2003           0 :          ngto(3) = 14
    2004           0 :          ival(0) = 1
    2005           0 :          ival(1) = 2
    2006           0 :          ival(2) = 2
    2007           0 :          ival(3) = 4
    2008             :       CASE (73)
    2009           0 :          cval = 1.97462110_dp
    2010           0 :          aval = 0.01603680_dp
    2011           0 :          ngto(0) = 31
    2012           0 :          ngto(1) = 24
    2013           0 :          ngto(2) = 20
    2014           0 :          ngto(3) = 14
    2015           0 :          ival(0) = 1
    2016           0 :          ival(1) = 2
    2017           0 :          ival(2) = 2
    2018           0 :          ival(3) = 4
    2019             :       CASE (74)
    2020           0 :          cval = 1.97756000_dp
    2021           0 :          aval = 0.02030570_dp
    2022           0 :          ngto(0) = 31
    2023           0 :          ngto(1) = 24
    2024           0 :          ngto(2) = 20
    2025           0 :          ngto(3) = 14
    2026           0 :          ival(0) = 1
    2027           0 :          ival(1) = 2
    2028           0 :          ival(2) = 2
    2029           0 :          ival(3) = 4
    2030             :       CASE (75)
    2031           2 :          cval = 1.97645760_dp
    2032           2 :          aval = 0.02057180_dp
    2033           2 :          ngto(0) = 31
    2034           2 :          ngto(1) = 24
    2035           2 :          ngto(2) = 20
    2036           2 :          ngto(3) = 14
    2037           2 :          ival(0) = 1
    2038           2 :          ival(1) = 2
    2039           2 :          ival(2) = 2
    2040           2 :          ival(3) = 4
    2041             :       CASE (76)
    2042           2 :          cval = 1.97725820_dp
    2043           2 :          aval = 0.02058210_dp
    2044           2 :          ngto(0) = 32
    2045           2 :          ngto(1) = 24
    2046           2 :          ngto(2) = 20
    2047           2 :          ngto(3) = 15
    2048             :          ival(0) = 0
    2049           2 :          ival(1) = 2
    2050           2 :          ival(2) = 2
    2051           2 :          ival(3) = 4
    2052             :       CASE (77)
    2053           0 :          cval = 1.97749380_dp
    2054           0 :          aval = 0.02219380_dp
    2055           0 :          ngto(0) = 32
    2056           0 :          ngto(1) = 24
    2057           0 :          ngto(2) = 20
    2058           0 :          ngto(3) = 15
    2059             :          ival(0) = 0
    2060           0 :          ival(1) = 2
    2061           0 :          ival(2) = 2
    2062           0 :          ival(3) = 4
    2063             :       CASE (78)
    2064           0 :          cval = 1.97946280_dp
    2065           0 :          aval = 0.02216280_dp
    2066           0 :          ngto(0) = 32
    2067           0 :          ngto(1) = 24
    2068           0 :          ngto(2) = 20
    2069           0 :          ngto(3) = 15
    2070             :          ival(0) = 0
    2071           0 :          ival(1) = 2
    2072           0 :          ival(2) = 2
    2073           0 :          ival(3) = 4
    2074             :       CASE (79)
    2075           2 :          cval = 1.97852130_dp
    2076           2 :          aval = 0.02168500_dp
    2077           2 :          ngto(0) = 32
    2078           2 :          ngto(1) = 24
    2079           2 :          ngto(2) = 20
    2080           2 :          ngto(3) = 15
    2081             :          ival(0) = 0
    2082           2 :          ival(1) = 2
    2083           2 :          ival(2) = 2
    2084           2 :          ival(3) = 4
    2085             :       CASE (80)
    2086           0 :          cval = 1.98045190_dp
    2087           0 :          aval = 0.02177860_dp
    2088           0 :          ngto(0) = 32
    2089           0 :          ngto(1) = 24
    2090           0 :          ngto(2) = 20
    2091           0 :          ngto(3) = 15
    2092             :          ival(0) = 0
    2093           0 :          ival(1) = 2
    2094           0 :          ival(2) = 2
    2095           0 :          ival(3) = 4
    2096             :       CASE (81)
    2097           2 :          cval = 1.97000000_dp
    2098           2 :          aval = 0.02275000_dp
    2099           2 :          ngto(0) = 31
    2100           2 :          ngto(1) = 25
    2101           2 :          ngto(2) = 18
    2102           2 :          ngto(3) = 13
    2103           2 :          ival(0) = 1
    2104             :          ival(1) = 0
    2105           2 :          ival(2) = 3
    2106           2 :          ival(3) = 6
    2107             :       CASE (82)
    2108           0 :          cval = 1.97713580_dp
    2109           0 :          aval = 0.02317030_dp
    2110           0 :          ngto(0) = 31
    2111           0 :          ngto(1) = 27
    2112           0 :          ngto(2) = 18
    2113           0 :          ngto(3) = 13
    2114           0 :          ival(0) = 1
    2115             :          ival(1) = 0
    2116           0 :          ival(2) = 3
    2117           0 :          ival(3) = 6
    2118             :       CASE (83)
    2119           0 :          cval = 1.97537880_dp
    2120           0 :          aval = 0.02672860_dp
    2121           0 :          ngto(0) = 32
    2122           0 :          ngto(1) = 27
    2123           0 :          ngto(2) = 17
    2124           0 :          ngto(3) = 13
    2125           0 :          ival(0) = 1
    2126             :          ival(1) = 0
    2127           0 :          ival(2) = 3
    2128           0 :          ival(3) = 6
    2129             :       CASE (84)
    2130           0 :          cval = 1.97545360_dp
    2131           0 :          aval = 0.02745360_dp
    2132           0 :          ngto(0) = 31
    2133           0 :          ngto(1) = 27
    2134           0 :          ngto(2) = 17
    2135           0 :          ngto(3) = 13
    2136           0 :          ival(0) = 1
    2137             :          ival(1) = 0
    2138           0 :          ival(2) = 3
    2139           0 :          ival(3) = 6
    2140             :       CASE (85)
    2141           0 :          cval = 1.97338370_dp
    2142           0 :          aval = 0.02616310_dp
    2143           0 :          ngto(0) = 32
    2144           0 :          ngto(1) = 27
    2145           0 :          ngto(2) = 19
    2146           0 :          ngto(3) = 13
    2147           0 :          ival(0) = 1
    2148             :          ival(1) = 0
    2149           0 :          ival(2) = 3
    2150           0 :          ival(3) = 6
    2151             :       CASE (86)
    2152           0 :          cval = 1.97294240_dp
    2153           0 :          aval = 0.02429220_dp
    2154           0 :          ngto(0) = 32
    2155           0 :          ngto(1) = 27
    2156           0 :          ngto(2) = 19
    2157           0 :          ngto(3) = 13
    2158           0 :          ival(0) = 1
    2159             :          ival(1) = 0
    2160           0 :          ival(2) = 3
    2161           0 :          ival(3) = 6
    2162             :       CASE (87:106) ! these numbers are an educated guess
    2163          14 :          cval = 1.98000000_dp
    2164          14 :          aval = 0.01400000_dp
    2165          14 :          ngto(0) = 34
    2166          14 :          ngto(1) = 28
    2167          14 :          ngto(2) = 20
    2168          14 :          ngto(3) = 15
    2169             :          ival(0) = 0
    2170             :          ival(1) = 0
    2171          14 :          ival(2) = 3
    2172         156 :          ival(3) = 6
    2173             :       END SELECT
    2174             : 
    2175         156 :    END SUBROUTINE Clementi_geobas
    2176             : ! **************************************************************************************************
    2177             : !> \brief ...
    2178             : !> \param element_symbol ...
    2179             : !> \param basis ...
    2180             : !> \param basis_set_name ...
    2181             : !> \param basis_set_file ...
    2182             : !> \param basis_section ...
    2183             : ! **************************************************************************************************
    2184          79 :    SUBROUTINE read_basis_set(element_symbol, basis, basis_set_name, basis_set_file, &
    2185             :                              basis_section)
    2186             : 
    2187             :       CHARACTER(LEN=*), INTENT(IN)                       :: element_symbol
    2188             :       TYPE(atom_basis_type), INTENT(INOUT)               :: basis
    2189             :       CHARACTER(LEN=*), INTENT(IN)                       :: basis_set_name, basis_set_file
    2190             :       TYPE(section_vals_type), POINTER                   :: basis_section
    2191             : 
    2192             :       INTEGER, PARAMETER                                 :: maxpri = 40, maxset = 20
    2193             : 
    2194             :       CHARACTER(len=20*default_string_length)            :: line_att
    2195             :       CHARACTER(LEN=240)                                 :: line
    2196             :       CHARACTER(LEN=242)                                 :: line2
    2197          79 :       CHARACTER(LEN=LEN(basis_set_name))                 :: bsname
    2198          79 :       CHARACTER(LEN=LEN(basis_set_name)+2)               :: bsname2
    2199          79 :       CHARACTER(LEN=LEN(element_symbol))                 :: symbol
    2200          79 :       CHARACTER(LEN=LEN(element_symbol)+2)               :: symbol2
    2201             :       INTEGER                                            :: i, ii, ipgf, irep, iset, ishell, j, k, &
    2202             :                                                             lshell, nj, nmin, ns, nset, strlen1, &
    2203             :                                                             strlen2
    2204             :       INTEGER, DIMENSION(maxpri, maxset)                 :: l
    2205             :       INTEGER, DIMENSION(maxset)                         :: lmax, lmin, n, npgf, nshell
    2206             :       LOGICAL                                            :: found, is_ok, match, read_from_input
    2207             :       REAL(dp)                                           :: expzet, gcca, prefac, zeta
    2208             :       REAL(dp), DIMENSION(maxpri, maxpri, maxset)        :: gcc
    2209             :       REAL(dp), DIMENSION(maxpri, maxset)                :: zet
    2210             :       TYPE(cp_sll_val_type), POINTER                     :: list
    2211             :       TYPE(val_type), POINTER                            :: val
    2212             : 
    2213          79 :       bsname = basis_set_name
    2214          79 :       symbol = element_symbol
    2215          79 :       irep = 0
    2216             : 
    2217          79 :       nset = 0
    2218          79 :       lmin = 0
    2219          79 :       lmax = 0
    2220          79 :       npgf = 0
    2221          79 :       n = 0
    2222          79 :       l = 0
    2223          79 :       zet = 0._dp
    2224          79 :       gcc = 0._dp
    2225             : 
    2226             :       read_from_input = .FALSE.
    2227          79 :       CALL section_vals_get(basis_section, explicit=read_from_input)
    2228          79 :       IF (read_from_input) THEN
    2229           0 :          NULLIFY (list, val)
    2230           0 :          CALL section_vals_list_get(basis_section, "_DEFAULT_KEYWORD_", list=list)
    2231           0 :          CALL uppercase(symbol)
    2232           0 :          CALL uppercase(bsname)
    2233           0 :          is_ok = cp_sll_val_next(list, val)
    2234           0 :          CPASSERT(is_ok)
    2235           0 :          CALL val_get(val, c_val=line_att)
    2236           0 :          READ (line_att, *) nset
    2237           0 :          CPASSERT(nset <= maxset)
    2238           0 :          DO iset = 1, nset
    2239           0 :             is_ok = cp_sll_val_next(list, val)
    2240           0 :             CPASSERT(is_ok)
    2241           0 :             CALL val_get(val, c_val=line_att)
    2242           0 :             READ (line_att, *) n(iset)
    2243           0 :             CALL remove_word(line_att)
    2244           0 :             READ (line_att, *) lmin(iset)
    2245           0 :             CALL remove_word(line_att)
    2246           0 :             READ (line_att, *) lmax(iset)
    2247           0 :             CALL remove_word(line_att)
    2248           0 :             READ (line_att, *) npgf(iset)
    2249           0 :             CALL remove_word(line_att)
    2250           0 :             CPASSERT(npgf(iset) <= maxpri)
    2251           0 :             nshell(iset) = 0
    2252           0 :             DO lshell = lmin(iset), lmax(iset)
    2253           0 :                nmin = n(iset) + lshell - lmin(iset)
    2254           0 :                READ (line_att, *) ishell
    2255           0 :                CALL remove_word(line_att)
    2256           0 :                nshell(iset) = nshell(iset) + ishell
    2257           0 :                DO i = 1, ishell
    2258           0 :                   l(nshell(iset) - ishell + i, iset) = lshell
    2259             :                END DO
    2260             :             END DO
    2261           0 :             CPASSERT(LEN_TRIM(line_att) == 0)
    2262           0 :             DO ipgf = 1, npgf(iset)
    2263           0 :                is_ok = cp_sll_val_next(list, val)
    2264           0 :                CPASSERT(is_ok)
    2265           0 :                CALL val_get(val, c_val=line_att)
    2266           0 :                READ (line_att, *) zet(ipgf, iset), (gcc(ipgf, ishell, iset), ishell=1, nshell(iset))
    2267             :             END DO
    2268             :          END DO
    2269             :       ELSE
    2270          79 :          BLOCK
    2271             :             TYPE(cp_parser_type)                      :: parser
    2272          79 :             CALL parser_create(parser, basis_set_file)
    2273             :             ! Search for the requested basis set in the basis set file
    2274             :             ! until the basis set is found or the end of file is reached
    2275             :             search_loop: DO
    2276         522 :                CALL parser_search_string(parser, TRIM(bsname), .TRUE., found, line)
    2277         522 :                IF (found) THEN
    2278         522 :                   CALL uppercase(symbol)
    2279         522 :                   CALL uppercase(bsname)
    2280         522 :                   match = .FALSE.
    2281         522 :                   CALL uppercase(line)
    2282             :                   ! Check both the element symbol and the basis set name
    2283         522 :                   line2 = " "//line//" "
    2284         522 :                   symbol2 = " "//TRIM(symbol)//" "
    2285         522 :                   bsname2 = " "//TRIM(bsname)//" "
    2286         522 :                   strlen1 = LEN_TRIM(symbol2) + 1
    2287         522 :                   strlen2 = LEN_TRIM(bsname2) + 1
    2288             : 
    2289         522 :                   IF ((INDEX(line2, symbol2(:strlen1)) > 0) .AND. &
    2290             :                       (INDEX(line2, bsname2(:strlen2)) > 0)) match = .TRUE.
    2291             : 
    2292             :                   IF (match) THEN
    2293             :                      ! Read the basis set information
    2294          79 :                      CALL parser_get_object(parser, nset, newline=.TRUE.)
    2295          79 :                      CPASSERT(nset <= maxset)
    2296         368 :                      DO iset = 1, nset
    2297         289 :                         CALL parser_get_object(parser, n(iset), newline=.TRUE.)
    2298         289 :                         CALL parser_get_object(parser, lmin(iset))
    2299         289 :                         CALL parser_get_object(parser, lmax(iset))
    2300         289 :                         CALL parser_get_object(parser, npgf(iset))
    2301         289 :                         CPASSERT(npgf(iset) <= maxpri)
    2302         289 :                         nshell(iset) = 0
    2303         606 :                         DO lshell = lmin(iset), lmax(iset)
    2304         317 :                            nmin = n(iset) + lshell - lmin(iset)
    2305         317 :                            CALL parser_get_object(parser, ishell)
    2306         317 :                            nshell(iset) = nshell(iset) + ishell
    2307        1003 :                            DO i = 1, ishell
    2308         714 :                               l(nshell(iset) - ishell + i, iset) = lshell
    2309             :                            END DO
    2310             :                         END DO
    2311        1096 :                         DO ipgf = 1, npgf(iset)
    2312         728 :                            CALL parser_get_object(parser, zet(ipgf, iset), newline=.TRUE.)
    2313        2212 :                            DO ishell = 1, nshell(iset)
    2314        1923 :                               CALL parser_get_object(parser, gcc(ipgf, ishell, iset))
    2315             :                            END DO
    2316             :                         END DO
    2317             :                      END DO
    2318             : 
    2319             :                      EXIT search_loop
    2320             : 
    2321             :                   END IF
    2322             :                ELSE
    2323             :                   ! Stop program, if the end of file is reached
    2324           0 :                   CPABORT("")
    2325             :                END IF
    2326             : 
    2327             :             END DO search_loop
    2328             : 
    2329         316 :             CALL parser_release(parser)
    2330             :          END BLOCK
    2331             :       END IF
    2332             : 
    2333             :       ! fill in the basis data structures
    2334         553 :       basis%nprim = 0
    2335         553 :       basis%nbas = 0
    2336         368 :       DO i = 1, nset
    2337         606 :          DO j = lmin(i), MIN(lmax(i), lmat)
    2338         606 :             basis%nprim(j) = basis%nprim(j) + npgf(i)
    2339             :          END DO
    2340         765 :          DO j = 1, nshell(i)
    2341         397 :             k = l(j, i)
    2342         686 :             IF (k <= lmat) basis%nbas(k) = basis%nbas(k) + 1
    2343             :          END DO
    2344             :       END DO
    2345             : 
    2346         553 :       nj = MAXVAL(basis%nprim)
    2347         553 :       ns = MAXVAL(basis%nbas)
    2348         237 :       ALLOCATE (basis%am(nj, 0:lmat))
    2349        3745 :       basis%am = 0._dp
    2350         395 :       ALLOCATE (basis%cm(nj, ns, 0:lmat))
    2351       11935 :       basis%cm = 0._dp
    2352             : 
    2353         553 :       DO j = 0, lmat
    2354             :          nj = 0
    2355             :          ns = 0
    2356        2287 :          DO i = 1, nset
    2357        2208 :             IF (j >= lmin(i) .AND. j <= lmax(i)) THEN
    2358        1140 :                DO ipgf = 1, npgf(i)
    2359        1140 :                   basis%am(nj + ipgf, j) = zet(ipgf, i)
    2360             :                END DO
    2361         804 :                DO ii = 1, nshell(i)
    2362         804 :                   IF (l(ii, i) == j) THEN
    2363         397 :                      ns = ns + 1
    2364        1592 :                      DO ipgf = 1, npgf(i)
    2365        1592 :                         basis%cm(nj + ipgf, ns, j) = gcc(ipgf, ii, i)
    2366             :                      END DO
    2367             :                   END IF
    2368             :                END DO
    2369         317 :                nj = nj + npgf(i)
    2370             :             END IF
    2371             :          END DO
    2372             :       END DO
    2373             : 
    2374             :       ! Normalization
    2375         553 :       DO j = 0, lmat
    2376         474 :          expzet = 0.25_dp*REAL(2*j + 3, dp)
    2377         474 :          prefac = SQRT(rootpi/2._dp**(j + 2)*dfac(2*j + 1))
    2378        1376 :          DO ipgf = 1, basis%nprim(j)
    2379        3645 :             DO ii = 1, basis%nbas(j)
    2380        2348 :                gcca = basis%cm(ipgf, ii, j)
    2381        2348 :                zeta = 2._dp*basis%am(ipgf, j)
    2382        3171 :                basis%cm(ipgf, ii, j) = zeta**expzet*gcca/prefac
    2383             :             END DO
    2384             :          END DO
    2385             :       END DO
    2386             : 
    2387         158 :    END SUBROUTINE read_basis_set
    2388             : 
    2389             : ! **************************************************************************************************
    2390             : !> \brief ...
    2391             : !> \param optimization ...
    2392             : !> \param opt_section ...
    2393             : ! **************************************************************************************************
    2394        1800 :    SUBROUTINE read_atom_opt_section(optimization, opt_section)
    2395             :       TYPE(atom_optimization_type), INTENT(INOUT)        :: optimization
    2396             :       TYPE(section_vals_type), POINTER                   :: opt_section
    2397             : 
    2398             :       INTEGER                                            :: miter, ndiis
    2399             :       REAL(KIND=dp)                                      :: damp, eps_diis, eps_scf
    2400             : 
    2401         360 :       CALL section_vals_val_get(opt_section, "MAX_ITER", i_val=miter)
    2402         360 :       CALL section_vals_val_get(opt_section, "EPS_SCF", r_val=eps_scf)
    2403         360 :       CALL section_vals_val_get(opt_section, "N_DIIS", i_val=ndiis)
    2404         360 :       CALL section_vals_val_get(opt_section, "EPS_DIIS", r_val=eps_diis)
    2405         360 :       CALL section_vals_val_get(opt_section, "DAMPING", r_val=damp)
    2406             : 
    2407         360 :       optimization%max_iter = miter
    2408         360 :       optimization%eps_scf = eps_scf
    2409         360 :       optimization%n_diis = ndiis
    2410         360 :       optimization%eps_diis = eps_diis
    2411         360 :       optimization%damping = damp
    2412             : 
    2413         360 :    END SUBROUTINE read_atom_opt_section
    2414             : ! **************************************************************************************************
    2415             : !> \brief ...
    2416             : !> \param potential ...
    2417             : !> \param potential_section ...
    2418             : !> \param zval ...
    2419             : ! **************************************************************************************************
    2420        1440 :    SUBROUTINE init_atom_potential(potential, potential_section, zval)
    2421             :       TYPE(atom_potential_type), INTENT(INOUT)           :: potential
    2422             :       TYPE(section_vals_type), POINTER                   :: potential_section
    2423             :       INTEGER, INTENT(IN)                                :: zval
    2424             : 
    2425             :       CHARACTER(LEN=default_string_length)               :: pseudo_fn, pseudo_name
    2426             :       INTEGER                                            :: ic
    2427         720 :       REAL(dp), DIMENSION(:), POINTER                    :: convals
    2428             :       TYPE(section_vals_type), POINTER                   :: ecp_potential_section, &
    2429             :                                                             gth_potential_section
    2430             : 
    2431         720 :       IF (zval > 0) THEN
    2432         360 :          CALL section_vals_val_get(potential_section, "PSEUDO_TYPE", i_val=potential%ppot_type)
    2433             : 
    2434         450 :          SELECT CASE (potential%ppot_type)
    2435             :          CASE (gth_pseudo)
    2436          90 :             CALL section_vals_val_get(potential_section, "POTENTIAL_FILE_NAME", c_val=pseudo_fn)
    2437          90 :             CALL section_vals_val_get(potential_section, "POTENTIAL_NAME", c_val=pseudo_name)
    2438          90 :             gth_potential_section => section_vals_get_subs_vals(potential_section, "GTH_POTENTIAL")
    2439             :             CALL read_gth_potential(ptable(zval)%symbol, potential%gth_pot, &
    2440          90 :                                     pseudo_name, pseudo_fn, gth_potential_section)
    2441             :          CASE (ecp_pseudo)
    2442           6 :             CALL section_vals_val_get(potential_section, "POTENTIAL_FILE_NAME", c_val=pseudo_fn)
    2443           6 :             CALL section_vals_val_get(potential_section, "POTENTIAL_NAME", c_val=pseudo_name)
    2444           6 :             ecp_potential_section => section_vals_get_subs_vals(potential_section, "ECP")
    2445             :             CALL read_ecp_potential(ptable(zval)%symbol, potential%ecp_pot, &
    2446           6 :                                     pseudo_name, pseudo_fn, ecp_potential_section)
    2447             :          CASE (upf_pseudo)
    2448           4 :             CALL section_vals_val_get(potential_section, "POTENTIAL_FILE_NAME", c_val=pseudo_fn)
    2449           4 :             CALL section_vals_val_get(potential_section, "POTENTIAL_NAME", c_val=pseudo_name)
    2450           4 :             CALL atom_read_upf(potential%upf_pot, pseudo_fn)
    2451           4 :             potential%upf_pot%pname = pseudo_name
    2452             :          CASE (sgp_pseudo)
    2453           0 :             CPABORT("Not implemented")
    2454             :          CASE (no_pseudo)
    2455             :             ! do nothing
    2456             :          CASE DEFAULT
    2457         360 :             CPABORT("")
    2458             :          END SELECT
    2459             :       ELSE
    2460         360 :          potential%ppot_type = no_pseudo
    2461             :       END IF
    2462             : 
    2463             :       ! confinement
    2464         720 :       NULLIFY (convals)
    2465         720 :       CALL section_vals_val_get(potential_section, "CONFINEMENT_TYPE", i_val=ic)
    2466         720 :       potential%conf_type = ic
    2467         720 :       IF (potential%conf_type == no_conf) THEN
    2468           0 :          potential%acon = 0.0_dp
    2469           0 :          potential%rcon = 4.0_dp
    2470           0 :          potential%scon = 2.0_dp
    2471           0 :          potential%confinement = .FALSE.
    2472         720 :       ELSE IF (potential%conf_type == poly_conf) THEN
    2473         696 :          CALL section_vals_val_get(potential_section, "CONFINEMENT", r_vals=convals)
    2474         696 :          IF (SIZE(convals) >= 1) THEN
    2475         696 :             IF (convals(1) > 0.0_dp) THEN
    2476          40 :                potential%confinement = .TRUE.
    2477          40 :                potential%acon = convals(1)
    2478          40 :                IF (SIZE(convals) >= 2) THEN
    2479          40 :                   potential%rcon = convals(2)
    2480             :                ELSE
    2481           0 :                   potential%rcon = 4.0_dp
    2482             :                END IF
    2483          40 :                IF (SIZE(convals) >= 3) THEN
    2484          40 :                   potential%scon = convals(3)
    2485             :                ELSE
    2486           0 :                   potential%scon = 2.0_dp
    2487             :                END IF
    2488             :             ELSE
    2489         656 :                potential%confinement = .FALSE.
    2490             :             END IF
    2491             :          ELSE
    2492           0 :             potential%confinement = .FALSE.
    2493             :          END IF
    2494          24 :       ELSE IF (potential%conf_type == barrier_conf) THEN
    2495          24 :          potential%acon = 200.0_dp
    2496          24 :          potential%rcon = 4.0_dp
    2497          24 :          potential%scon = 12.0_dp
    2498          24 :          potential%confinement = .TRUE.
    2499          24 :          CALL section_vals_val_get(potential_section, "CONFINEMENT", r_vals=convals)
    2500          24 :          IF (SIZE(convals) >= 1) THEN
    2501          24 :             IF (convals(1) > 0.0_dp) THEN
    2502          24 :                potential%acon = convals(1)
    2503          24 :                IF (SIZE(convals) >= 2) THEN
    2504          24 :                   potential%rcon = convals(2)
    2505             :                END IF
    2506          24 :                IF (SIZE(convals) >= 3) THEN
    2507          24 :                   potential%scon = convals(3)
    2508             :                END IF
    2509             :             ELSE
    2510           0 :                potential%confinement = .FALSE.
    2511             :             END IF
    2512             :          END IF
    2513             :       END IF
    2514             : 
    2515         720 :    END SUBROUTINE init_atom_potential
    2516             : ! **************************************************************************************************
    2517             : !> \brief ...
    2518             : !> \param potential ...
    2519             : ! **************************************************************************************************
    2520        9294 :    SUBROUTINE release_atom_potential(potential)
    2521             :       TYPE(atom_potential_type), INTENT(INOUT)           :: potential
    2522             : 
    2523        9294 :       potential%confinement = .FALSE.
    2524             : 
    2525        9294 :       CALL atom_release_upf(potential%upf_pot)
    2526             : 
    2527        9294 :    END SUBROUTINE release_atom_potential
    2528             : ! **************************************************************************************************
    2529             : !> \brief ...
    2530             : !> \param element_symbol ...
    2531             : !> \param potential ...
    2532             : !> \param pseudo_name ...
    2533             : !> \param pseudo_file ...
    2534             : !> \param potential_section ...
    2535             : ! **************************************************************************************************
    2536         180 :    SUBROUTINE read_gth_potential(element_symbol, potential, pseudo_name, pseudo_file, &
    2537             :                                  potential_section)
    2538             : 
    2539             :       CHARACTER(LEN=*), INTENT(IN)                       :: element_symbol
    2540             :       TYPE(atom_gthpot_type), INTENT(INOUT)              :: potential
    2541             :       CHARACTER(LEN=*), INTENT(IN)                       :: pseudo_name, pseudo_file
    2542             :       TYPE(section_vals_type), POINTER                   :: potential_section
    2543             : 
    2544             :       CHARACTER(LEN=240)                                 :: line
    2545             :       CHARACTER(LEN=242)                                 :: line2
    2546             :       CHARACTER(len=5*default_string_length)             :: line_att
    2547          90 :       CHARACTER(LEN=LEN(element_symbol))                 :: symbol
    2548          90 :       CHARACTER(LEN=LEN(element_symbol)+2)               :: symbol2
    2549          90 :       CHARACTER(LEN=LEN(pseudo_name))                    :: apname
    2550          90 :       CHARACTER(LEN=LEN(pseudo_name)+2)                  :: apname2
    2551             :       INTEGER                                            :: i, ic, ipot, j, l, nlmax, strlen1, &
    2552             :                                                             strlen2
    2553             :       INTEGER, DIMENSION(0:lmat)                         :: elec_conf
    2554             :       LOGICAL                                            :: found, is_ok, match, read_from_input
    2555             :       TYPE(cp_sll_val_type), POINTER                     :: list
    2556             :       TYPE(val_type), POINTER                            :: val
    2557             : 
    2558          90 :       elec_conf = 0
    2559             : 
    2560          90 :       apname = pseudo_name
    2561          90 :       symbol = element_symbol
    2562             : 
    2563          90 :       potential%symbol = symbol
    2564          90 :       potential%pname = apname
    2565         630 :       potential%econf = 0
    2566          90 :       potential%rc = 0._dp
    2567          90 :       potential%ncl = 0
    2568         540 :       potential%cl = 0._dp
    2569         630 :       potential%nl = 0
    2570         630 :       potential%rcnl = 0._dp
    2571       11430 :       potential%hnl = 0._dp
    2572             : 
    2573          90 :       potential%lpotextended = .FALSE.
    2574          90 :       potential%lsdpot = .FALSE.
    2575          90 :       potential%nlcc = .FALSE.
    2576          90 :       potential%nexp_lpot = 0
    2577          90 :       potential%nexp_lsd = 0
    2578          90 :       potential%nexp_nlcc = 0
    2579             : 
    2580             :       read_from_input = .FALSE.
    2581          90 :       CALL section_vals_get(potential_section, explicit=read_from_input)
    2582          90 :       IF (read_from_input) THEN
    2583          42 :          CALL section_vals_list_get(potential_section, "_DEFAULT_KEYWORD_", list=list)
    2584          42 :          CALL uppercase(symbol)
    2585          42 :          CALL uppercase(apname)
    2586             :          ! Read the electronic configuration, not used here
    2587          42 :          l = 0
    2588          42 :          is_ok = cp_sll_val_next(list, val)
    2589          42 :          CPASSERT(is_ok)
    2590          42 :          CALL val_get(val, c_val=line_att)
    2591          42 :          READ (line_att, *) elec_conf(l)
    2592          42 :          CALL remove_word(line_att)
    2593         132 :          DO WHILE (LEN_TRIM(line_att) /= 0)
    2594          90 :             l = l + 1
    2595          90 :             READ (line_att, *) elec_conf(l)
    2596          90 :             CALL remove_word(line_att)
    2597             :          END DO
    2598         294 :          potential%econf(0:lmat) = elec_conf(0:lmat)
    2599         294 :          potential%zion = REAL(SUM(elec_conf), dp)
    2600             :          ! Read r(loc) to define the exponent of the core charge
    2601          42 :          is_ok = cp_sll_val_next(list, val)
    2602          42 :          CPASSERT(is_ok)
    2603          42 :          CALL val_get(val, c_val=line_att)
    2604          42 :          READ (line_att, *) potential%rc
    2605          42 :          CALL remove_word(line_att)
    2606             :          ! Read the parameters for the local part of the GTH pseudopotential (ppl)
    2607          42 :          READ (line_att, *) potential%ncl
    2608          42 :          CALL remove_word(line_att)
    2609         120 :          DO i = 1, potential%ncl
    2610          78 :             READ (line_att, *) potential%cl(i)
    2611         120 :             CALL remove_word(line_att)
    2612             :          END DO
    2613             :          ! Check for the next entry: LPOT, NLCC, LSD, or ppnl
    2614             :          DO
    2615          52 :             is_ok = cp_sll_val_next(list, val)
    2616          52 :             CPASSERT(is_ok)
    2617          52 :             CALL val_get(val, c_val=line_att)
    2618          94 :             IF (INDEX(line_att, "LPOT") /= 0) THEN
    2619           0 :                potential%lpotextended = .TRUE.
    2620           0 :                CALL remove_word(line_att)
    2621           0 :                READ (line_att, *) potential%nexp_lpot
    2622           0 :                DO ipot = 1, potential%nexp_lpot
    2623           0 :                   is_ok = cp_sll_val_next(list, val)
    2624           0 :                   CPASSERT(is_ok)
    2625           0 :                   CALL val_get(val, c_val=line_att)
    2626           0 :                   READ (line_att, *) potential%alpha_lpot(ipot)
    2627           0 :                   CALL remove_word(line_att)
    2628           0 :                   READ (line_att, *) potential%nct_lpot(ipot)
    2629           0 :                   CALL remove_word(line_att)
    2630           0 :                   DO ic = 1, potential%nct_lpot(ipot)
    2631           0 :                      READ (line_att, *) potential%cval_lpot(ic, ipot)
    2632           0 :                      CALL remove_word(line_att)
    2633             :                   END DO
    2634             :                END DO
    2635          52 :             ELSEIF (INDEX(line_att, "NLCC") /= 0) THEN
    2636          10 :                potential%nlcc = .TRUE.
    2637          10 :                CALL remove_word(line_att)
    2638          10 :                READ (line_att, *) potential%nexp_nlcc
    2639          20 :                DO ipot = 1, potential%nexp_nlcc
    2640          10 :                   is_ok = cp_sll_val_next(list, val)
    2641          10 :                   CPASSERT(is_ok)
    2642          10 :                   CALL val_get(val, c_val=line_att)
    2643          10 :                   READ (line_att, *) potential%alpha_nlcc(ipot)
    2644          10 :                   CALL remove_word(line_att)
    2645          10 :                   READ (line_att, *) potential%nct_nlcc(ipot)
    2646          10 :                   CALL remove_word(line_att)
    2647          30 :                   DO ic = 1, potential%nct_nlcc(ipot)
    2648          10 :                      READ (line_att, *) potential%cval_nlcc(ic, ipot)
    2649             :                      !make cp2k compatible with bigdft
    2650          10 :                      potential%cval_nlcc(ic, ipot) = potential%cval_nlcc(ic, ipot)/(4.0_dp*pi)
    2651          20 :                      CALL remove_word(line_att)
    2652             :                   END DO
    2653             :                END DO
    2654          42 :             ELSEIF (INDEX(line_att, "LSD") /= 0) THEN
    2655           0 :                potential%lsdpot = .TRUE.
    2656           0 :                CALL remove_word(line_att)
    2657           0 :                READ (line_att, *) potential%nexp_lsd
    2658           0 :                DO ipot = 1, potential%nexp_lsd
    2659           0 :                   is_ok = cp_sll_val_next(list, val)
    2660           0 :                   CPASSERT(is_ok)
    2661           0 :                   CALL val_get(val, c_val=line_att)
    2662           0 :                   READ (line_att, *) potential%alpha_lsd(ipot)
    2663           0 :                   CALL remove_word(line_att)
    2664           0 :                   READ (line_att, *) potential%nct_lsd(ipot)
    2665           0 :                   CALL remove_word(line_att)
    2666           0 :                   DO ic = 1, potential%nct_lsd(ipot)
    2667           0 :                      READ (line_att, *) potential%cval_lsd(ic, ipot)
    2668           0 :                      CALL remove_word(line_att)
    2669             :                   END DO
    2670             :                END DO
    2671             :             ELSE
    2672             :                EXIT
    2673             :             END IF
    2674             :          END DO
    2675             :          ! Read the parameters for the non-local part of the GTH pseudopotential (ppnl)
    2676          42 :          READ (line_att, *) nlmax
    2677          42 :          CALL remove_word(line_att)
    2678          42 :          IF (nlmax > 0) THEN
    2679             :             ! Load the parameter for nlmax non-local projectors
    2680         106 :             DO l = 0, nlmax - 1
    2681          66 :                is_ok = cp_sll_val_next(list, val)
    2682          66 :                CPASSERT(is_ok)
    2683          66 :                CALL val_get(val, c_val=line_att)
    2684          66 :                READ (line_att, *) potential%rcnl(l)
    2685          66 :                CALL remove_word(line_att)
    2686          66 :                READ (line_att, *) potential%nl(l)
    2687          66 :                CALL remove_word(line_att)
    2688         146 :                DO i = 1, potential%nl(l)
    2689          80 :                   IF (i == 1) THEN
    2690          62 :                      READ (line_att, *) potential%hnl(1, 1, l)
    2691          62 :                      CALL remove_word(line_att)
    2692             :                   ELSE
    2693          18 :                      CPASSERT(LEN_TRIM(line_att) == 0)
    2694          18 :                      is_ok = cp_sll_val_next(list, val)
    2695          18 :                      CPASSERT(is_ok)
    2696          18 :                      CALL val_get(val, c_val=line_att)
    2697          18 :                      READ (line_att, *) potential%hnl(i, i, l)
    2698          18 :                      CALL remove_word(line_att)
    2699             :                   END IF
    2700         164 :                   DO j = i + 1, potential%nl(l)
    2701          18 :                      READ (line_att, *) potential%hnl(i, j, l)
    2702          18 :                      potential%hnl(j, i, l) = potential%hnl(i, j, l)
    2703          98 :                      CALL remove_word(line_att)
    2704             :                   END DO
    2705             :                END DO
    2706         106 :                CPASSERT(LEN_TRIM(line_att) == 0)
    2707             :             END DO
    2708             :          END IF
    2709             :       ELSE
    2710          48 :          BLOCK
    2711             :             TYPE(cp_parser_type)                      :: parser
    2712          48 :             CALL parser_create(parser, pseudo_file)
    2713             : 
    2714             :             search_loop: DO
    2715          62 :                CALL parser_search_string(parser, TRIM(apname), .TRUE., found, line)
    2716          62 :                IF (found) THEN
    2717          62 :                   CALL uppercase(symbol)
    2718          62 :                   CALL uppercase(apname)
    2719             :                   ! Check both the element symbol and the atomic potential name
    2720          62 :                   match = .FALSE.
    2721          62 :                   CALL uppercase(line)
    2722          62 :                   line2 = " "//line//" "
    2723          62 :                   symbol2 = " "//TRIM(symbol)//" "
    2724          62 :                   apname2 = " "//TRIM(apname)//" "
    2725          62 :                   strlen1 = LEN_TRIM(symbol2) + 1
    2726          62 :                   strlen2 = LEN_TRIM(apname2) + 1
    2727             : 
    2728          62 :                   IF ((INDEX(line2, symbol2(:strlen1)) > 0) .AND. &
    2729             :                       (INDEX(line2, apname2(:strlen2)) > 0)) match = .TRUE.
    2730             : 
    2731          48 :                   IF (match) THEN
    2732             :                      ! Read the electronic configuration
    2733          48 :                      l = 0
    2734          48 :                      CALL parser_get_object(parser, elec_conf(l), newline=.TRUE.)
    2735          72 :                      DO WHILE (parser_test_next_token(parser) == "INT")
    2736          24 :                         l = l + 1
    2737          24 :                         CALL parser_get_object(parser, elec_conf(l))
    2738             :                      END DO
    2739         336 :                      potential%econf(0:lmat) = elec_conf(0:lmat)
    2740         336 :                      potential%zion = REAL(SUM(elec_conf), dp)
    2741             :                      ! Read r(loc) to define the exponent of the core charge
    2742          48 :                      CALL parser_get_object(parser, potential%rc, newline=.TRUE.)
    2743             :                      ! Read the parameters for the local part of the GTH pseudopotential (ppl)
    2744          48 :                      CALL parser_get_object(parser, potential%ncl)
    2745         148 :                      DO i = 1, potential%ncl
    2746         148 :                         CALL parser_get_object(parser, potential%cl(i))
    2747             :                      END DO
    2748             :                      ! Extended type input
    2749             :                      DO
    2750          60 :                         CALL parser_get_next_line(parser, 1)
    2751          60 :                         IF (parser_test_next_token(parser) == "INT") THEN
    2752             :                            EXIT
    2753          72 :                         ELSEIF (parser_test_next_token(parser) == "STR") THEN
    2754          12 :                            CALL parser_get_object(parser, line)
    2755          12 :                            IF (INDEX(LINE, "LPOT") /= 0) THEN
    2756             :                               ! local potential
    2757          12 :                               potential%lpotextended = .TRUE.
    2758          12 :                               CALL parser_get_object(parser, potential%nexp_lpot)
    2759          32 :                               DO ipot = 1, potential%nexp_lpot
    2760          20 :                                  CALL parser_get_object(parser, potential%alpha_lpot(ipot), newline=.TRUE.)
    2761          20 :                                  CALL parser_get_object(parser, potential%nct_lpot(ipot))
    2762          76 :                                  DO ic = 1, potential%nct_lpot(ipot)
    2763          64 :                                     CALL parser_get_object(parser, potential%cval_lpot(ic, ipot))
    2764             :                                  END DO
    2765             :                               END DO
    2766           0 :                            ELSEIF (INDEX(LINE, "NLCC") /= 0) THEN
    2767             :                               ! NLCC
    2768           0 :                               potential%nlcc = .TRUE.
    2769           0 :                               CALL parser_get_object(parser, potential%nexp_nlcc)
    2770           0 :                               DO ipot = 1, potential%nexp_nlcc
    2771           0 :                                  CALL parser_get_object(parser, potential%alpha_nlcc(ipot), newline=.TRUE.)
    2772           0 :                                  CALL parser_get_object(parser, potential%nct_nlcc(ipot))
    2773           0 :                                  DO ic = 1, potential%nct_nlcc(ipot)
    2774           0 :                                     CALL parser_get_object(parser, potential%cval_nlcc(ic, ipot))
    2775             :                                     !make cp2k compatible with bigdft
    2776           0 :                                     potential%cval_nlcc(ic, ipot) = potential%cval_nlcc(ic, ipot)/(4.0_dp*pi)
    2777             :                                  END DO
    2778             :                               END DO
    2779           0 :                            ELSEIF (INDEX(LINE, "LSD") /= 0) THEN
    2780             :                               ! LSD potential
    2781           0 :                               potential%lsdpot = .TRUE.
    2782           0 :                               CALL parser_get_object(parser, potential%nexp_lsd)
    2783           0 :                               DO ipot = 1, potential%nexp_lsd
    2784           0 :                                  CALL parser_get_object(parser, potential%alpha_lsd(ipot), newline=.TRUE.)
    2785           0 :                                  CALL parser_get_object(parser, potential%nct_lsd(ipot))
    2786           0 :                                  DO ic = 1, potential%nct_lsd(ipot)
    2787           0 :                                     CALL parser_get_object(parser, potential%cval_lsd(ic, ipot))
    2788             :                                  END DO
    2789             :                               END DO
    2790             :                            ELSE
    2791           0 :                               CPABORT("")
    2792             :                            END IF
    2793             :                         ELSE
    2794          12 :                            CPABORT("")
    2795             :                         END IF
    2796             :                      END DO
    2797             :                      ! Read the parameters for the non-local part of the GTH pseudopotential (ppnl)
    2798          48 :                      CALL parser_get_object(parser, nlmax)
    2799          48 :                      IF (nlmax > 0) THEN
    2800             :                         ! Load the parameter for n non-local projectors
    2801          76 :                         DO l = 0, nlmax - 1
    2802          52 :                            CALL parser_get_object(parser, potential%rcnl(l), newline=.TRUE.)
    2803          52 :                            CALL parser_get_object(parser, potential%nl(l))
    2804         124 :                            DO i = 1, potential%nl(l)
    2805          48 :                               IF (i == 1) THEN
    2806          36 :                                  CALL parser_get_object(parser, potential%hnl(i, i, l))
    2807             :                               ELSE
    2808          12 :                                  CALL parser_get_object(parser, potential%hnl(i, i, l), newline=.TRUE.)
    2809             :                               END IF
    2810         112 :                               DO j = i + 1, potential%nl(l)
    2811          12 :                                  CALL parser_get_object(parser, potential%hnl(i, j, l))
    2812          60 :                                  potential%hnl(j, i, l) = potential%hnl(i, j, l)
    2813             :                               END DO
    2814             :                            END DO
    2815             :                         END DO
    2816             :                      END IF
    2817             :                      EXIT search_loop
    2818             :                   END IF
    2819             :                ELSE
    2820             :                   ! Stop program, if the end of file is reached
    2821           0 :                   CPABORT("")
    2822             :                END IF
    2823             : 
    2824             :             END DO search_loop
    2825             : 
    2826         192 :             CALL parser_release(parser)
    2827             :          END BLOCK
    2828             :       END IF
    2829             : 
    2830          90 :    END SUBROUTINE read_gth_potential
    2831             : ! **************************************************************************************************
    2832             : !> \brief ...
    2833             : !> \param element_symbol ...
    2834             : !> \param potential ...
    2835             : !> \param pseudo_name ...
    2836             : !> \param pseudo_file ...
    2837             : !> \param potential_section ...
    2838             : ! **************************************************************************************************
    2839          66 :    SUBROUTINE read_ecp_potential(element_symbol, potential, pseudo_name, pseudo_file, &
    2840             :                                  potential_section)
    2841             : 
    2842             :       CHARACTER(LEN=*), INTENT(IN)                       :: element_symbol
    2843             :       TYPE(atom_ecppot_type), INTENT(INOUT)              :: potential
    2844             :       CHARACTER(LEN=*), INTENT(IN)                       :: pseudo_name, pseudo_file
    2845             :       TYPE(section_vals_type), POINTER                   :: potential_section
    2846             : 
    2847             :       CHARACTER(LEN=240)                                 :: line
    2848             :       CHARACTER(len=5*default_string_length)             :: line_att
    2849          22 :       CHARACTER(LEN=LEN(element_symbol)+1)               :: symbol
    2850          22 :       CHARACTER(LEN=LEN(pseudo_name))                    :: apname
    2851             :       INTEGER                                            :: i, ic, l, ncore, nel
    2852             :       LOGICAL                                            :: found, is_ok, read_from_input
    2853             :       TYPE(cp_sll_val_type), POINTER                     :: list
    2854             :       TYPE(val_type), POINTER                            :: val
    2855             : 
    2856          22 :       apname = pseudo_name
    2857          22 :       symbol = element_symbol
    2858          22 :       CALL get_ptable_info(symbol, number=ncore)
    2859             : 
    2860          22 :       potential%symbol = symbol
    2861          22 :       potential%pname = apname
    2862         154 :       potential%econf = 0
    2863          22 :       potential%zion = 0
    2864          22 :       potential%lmax = -1
    2865          22 :       potential%nloc = 0
    2866         352 :       potential%nrloc = 0
    2867         352 :       potential%aloc = 0.0_dp
    2868         352 :       potential%bloc = 0.0_dp
    2869         264 :       potential%npot = 0
    2870        3894 :       potential%nrpot = 0
    2871        3894 :       potential%apot = 0.0_dp
    2872        3894 :       potential%bpot = 0.0_dp
    2873             : 
    2874             :       read_from_input = .FALSE.
    2875          22 :       CALL section_vals_get(potential_section, explicit=read_from_input)
    2876          22 :       IF (read_from_input) THEN
    2877           2 :          CALL section_vals_list_get(potential_section, "_DEFAULT_KEYWORD_", list=list)
    2878             :          ! number of electrons (mandatory line)
    2879           2 :          is_ok = cp_sll_val_next(list, val)
    2880           2 :          CPASSERT(is_ok)
    2881           2 :          CALL val_get(val, c_val=line_att)
    2882           2 :          CALL remove_word(line_att)
    2883           2 :          CALL remove_word(line_att)
    2884             :          ! read number of electrons
    2885           2 :          READ (line_att, *) nel
    2886           2 :          potential%zion = REAL(ncore - nel, KIND=dp)
    2887             :          ! local potential (mandatory block)
    2888           2 :          is_ok = cp_sll_val_next(list, val)
    2889           2 :          CPASSERT(is_ok)
    2890           2 :          CALL val_get(val, c_val=line_att)
    2891           4 :          DO i = 1, 10
    2892           4 :             IF (.NOT. cp_sll_val_next(list, val)) EXIT
    2893           4 :             CALL val_get(val, c_val=line_att)
    2894           4 :             IF (INDEX(line_att, element_symbol) == 0) THEN
    2895           2 :                potential%nloc = potential%nloc + 1
    2896           2 :                ic = potential%nloc
    2897           2 :                READ (line_att, *) potential%nrloc(ic), potential%bloc(ic), potential%aloc(ic)
    2898             :             ELSE
    2899             :                EXIT
    2900             :             END IF
    2901             :          END DO
    2902             :          ! read potentials
    2903             :          DO
    2904          12 :             CALL val_get(val, c_val=line_att)
    2905          12 :             IF (INDEX(line_att, element_symbol) == 0) THEN
    2906           6 :                potential%npot(l) = potential%npot(l) + 1
    2907           6 :                ic = potential%npot(l)
    2908           6 :                READ (line_att, *) potential%nrpot(ic, l), potential%bpot(ic, l), potential%apot(ic, l)
    2909             :             ELSE
    2910           6 :                potential%lmax = potential%lmax + 1
    2911           6 :                l = potential%lmax
    2912             :             END IF
    2913          12 :             IF (.NOT. cp_sll_val_next(list, val)) EXIT
    2914             :          END DO
    2915             : 
    2916             :       ELSE
    2917          20 :          BLOCK
    2918             :             TYPE(cp_parser_type)                      :: parser
    2919          20 :             CALL parser_create(parser, pseudo_file)
    2920             : 
    2921           0 :             search_loop: DO
    2922          20 :                CALL parser_search_string(parser, TRIM(apname), .TRUE., found, line)
    2923          20 :                IF (found) THEN
    2924             :                   match_loop: DO
    2925        1100 :                      CALL parser_get_object(parser, line, newline=.TRUE.)
    2926        1100 :                      IF (TRIM(line) == element_symbol) THEN
    2927          20 :                         CALL parser_get_object(parser, line, lower_to_upper=.TRUE.)
    2928          20 :                         CPASSERT(TRIM(line) == "NELEC")
    2929             :                         ! read number of electrons
    2930          20 :                         CALL parser_get_object(parser, nel)
    2931          20 :                         potential%zion = REAL(ncore - nel, KIND=dp)
    2932             :                         ! read local potential flag line "<XX> ul"
    2933          20 :                         CALL parser_get_object(parser, line, newline=.TRUE.)
    2934             :                         ! read local potential
    2935          72 :                         DO i = 1, 15
    2936          72 :                            CALL parser_read_line(parser, 1)
    2937          72 :                            IF (parser_test_next_token(parser) == "STR") EXIT
    2938          52 :                            potential%nloc = potential%nloc + 1
    2939          52 :                            ic = potential%nloc
    2940          52 :                            CALL parser_get_object(parser, potential%nrloc(ic))
    2941          52 :                            CALL parser_get_object(parser, potential%bloc(ic))
    2942          52 :                            CALL parser_get_object(parser, potential%aloc(ic))
    2943             :                         END DO
    2944             :                         ! read potentials (start with l loop)
    2945          88 :                         DO l = 0, 15
    2946          88 :                            CALL parser_get_object(parser, symbol)
    2947          88 :                            IF (symbol == element_symbol) THEN
    2948             :                               ! new l block
    2949          68 :                               potential%lmax = potential%lmax + 1
    2950         252 :                               DO i = 1, 15
    2951         252 :                                  CALL parser_read_line(parser, 1)
    2952         252 :                                  IF (parser_test_next_token(parser) == "STR") EXIT
    2953         184 :                                  potential%npot(l) = potential%npot(l) + 1
    2954         184 :                                  ic = potential%npot(l)
    2955         184 :                                  CALL parser_get_object(parser, potential%nrpot(ic, l))
    2956         184 :                                  CALL parser_get_object(parser, potential%bpot(ic, l))
    2957         184 :                                  CALL parser_get_object(parser, potential%apot(ic, l))
    2958             :                               END DO
    2959             :                            ELSE
    2960             :                               EXIT
    2961             :                            END IF
    2962             :                         END DO
    2963             :                         EXIT search_loop
    2964        1080 :                      ELSE IF (line == "END") THEN
    2965           0 :                         CPABORT("Element not found in ECP library")
    2966             :                      END IF
    2967             :                   END DO match_loop
    2968             :                ELSE
    2969           0 :                   CPABORT("ECP type not found in library")
    2970             :                END IF
    2971             : 
    2972             :             END DO search_loop
    2973             : 
    2974          80 :             CALL parser_release(parser)
    2975             :          END BLOCK
    2976             :       END IF
    2977             : 
    2978             :       ! set up econf
    2979         110 :       potential%econf(0:3) = ptable(ncore)%e_conv(0:3)
    2980           0 :       SELECT CASE (nel)
    2981             :       CASE DEFAULT
    2982           0 :          CPABORT("Unknown Core State")
    2983             :       CASE (2)
    2984          40 :          potential%econf(0:3) = potential%econf(0:3) - ptable(2)%e_conv(0:3)
    2985             :       CASE (10)
    2986          20 :          potential%econf(0:3) = potential%econf(0:3) - ptable(10)%e_conv(0:3)
    2987             :       CASE (18)
    2988           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(18)%e_conv(0:3)
    2989             :       CASE (28)
    2990           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(18)%e_conv(0:3)
    2991           0 :          potential%econf(2) = potential%econf(2) - 10
    2992             :       CASE (36)
    2993           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(36)%e_conv(0:3)
    2994             :       CASE (46)
    2995          20 :          potential%econf(0:3) = potential%econf(0:3) - ptable(36)%e_conv(0:3)
    2996           4 :          potential%econf(2) = potential%econf(2) - 10
    2997             :       CASE (54)
    2998           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(54)%e_conv(0:3)
    2999             :       CASE (60)
    3000           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(36)%e_conv(0:3)
    3001           0 :          potential%econf(2) = potential%econf(2) - 10
    3002           0 :          potential%econf(3) = potential%econf(3) - 14
    3003             :       CASE (68)
    3004           0 :          potential%econf(0:3) = potential%econf(0:3) - ptable(54)%e_conv(0:3)
    3005           0 :          potential%econf(3) = potential%econf(3) - 14
    3006             :       CASE (78)
    3007          30 :          potential%econf(0:3) = potential%econf(0:3) - ptable(54)%e_conv(0:3)
    3008           6 :          potential%econf(2) = potential%econf(2) - 10
    3009          28 :          potential%econf(3) = potential%econf(3) - 14
    3010             :       END SELECT
    3011             :       !
    3012         154 :       CPASSERT(ALL(potential%econf >= 0))
    3013             : 
    3014          22 :    END SUBROUTINE read_ecp_potential
    3015             : ! **************************************************************************************************
    3016             : !> \brief ...
    3017             : !> \param grid1 ...
    3018             : !> \param grid2 ...
    3019             : !> \return ...
    3020             : ! **************************************************************************************************
    3021           0 :    FUNCTION atom_compare_grids(grid1, grid2) RESULT(is_equal)
    3022             :       TYPE(grid_atom_type)                               :: grid1, grid2
    3023             :       LOGICAL                                            :: is_equal
    3024             : 
    3025             :       INTEGER                                            :: i
    3026             :       REAL(KIND=dp)                                      :: dr, dw
    3027             : 
    3028           0 :       is_equal = .TRUE.
    3029           0 :       IF (grid1%nr == grid2%nr) THEN
    3030           0 :          DO i = 1, grid2%nr
    3031           0 :             dr = ABS(grid1%rad(i) - grid2%rad(i))
    3032           0 :             dw = ABS(grid1%wr(i) - grid2%wr(i))
    3033           0 :             IF (dr + dw > 1.0e-12_dp) THEN
    3034             :                is_equal = .FALSE.
    3035             :                EXIT
    3036             :             END IF
    3037             :          END DO
    3038             :       ELSE
    3039             :          is_equal = .FALSE.
    3040             :       END IF
    3041             : 
    3042           0 :    END FUNCTION atom_compare_grids
    3043             : ! **************************************************************************************************
    3044             : 
    3045           0 : END MODULE atom_types

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