102#include "./base/base_uses.f90"
107 CHARACTER(len=*),
PARAMETER,
PRIVATE :: moduleN =
'input_cp2k_dft'
127 cpassert(.NOT.
ASSOCIATED(section))
129 description=
"Controls electronic-structure settings for Quickstep and related "// &
130 "Gaussian-basis DFT methods.", &
131 n_keywords=3, n_subsections=4, repeats=.false.)
134 CALL keyword_create(keyword, __location__, name=
"BASIS_SET_FILE_NAME", &
135 description=
"Name of a basis-set library file, optionally including a path. "// &
136 "This keyword can be repeated to search several basis-set files.", &
137 usage=
"BASIS_SET_FILE_NAME <FILENAME>", &
138 type_of_var=
lchar_t, repeats=.true., &
139 default_lc_val=
"BASIS_SET", n_var=1)
143 CALL keyword_create(keyword, __location__, name=
"POTENTIAL_FILE_NAME", &
144 description=
"Name of the pseudopotential library file, optionally including a path. "// &
145 "The potential selected for each kind is set with KIND%POTENTIAL.", &
146 usage=
"POTENTIAL_FILE_NAME <FILENAME>", &
147 default_lc_val=
"POTENTIAL")
151 CALL keyword_create(keyword, __location__, name=
"WFN_RESTART_FILE_NAME", &
152 variants=[
"RESTART_FILE_NAME"], &
153 description=
"Name of the wavefunction restart file, may include a path."// &
154 " If no file is specified, the default is to open the file as generated by the wfn restart print key.", &
155 usage=
"WFN_RESTART_FILE_NAME <FILENAME>", &
162 variants=
s2a(
"UNRESTRICTED_KOHN_SHAM", &
165 description=
"Requests a spin-polarized calculation using alpha "// &
166 "and beta orbitals, i.e. no spin restriction is applied", &
168 default_l_val=.false., &
169 lone_keyword_l_val=.true.)
174 variants=[
"RESTRICTED_OPEN_KOHN_SHAM"], &
175 description=
"Requests a restricted open Kohn-Sham calculation", &
177 default_l_val=.false., &
178 lone_keyword_l_val=.true.)
182 name=
"MULTIPLICITY", &
183 variants=[
"MULTIP"], &
184 description=
"Two times the total spin plus one. "// &
185 "Specify 3 for a triplet, 4 for a quartet, "// &
186 "and so on. Default is 1 (singlet) for an "// &
187 "even number and 2 (doublet) for an odd number "// &
189 usage=
"MULTIPLICITY 3", &
194 description=
"The total charge of the system", &
201 name=
"PLUS_U_METHOD", &
202 description=
"Method employed for the calculation of the DFT+U contribution", &
204 enum_c_vals=
s2a(
"LOWDIN",
"MULLIKEN",
"MULLIKEN_CHARGES"), &
206 enum_desc=
s2a(
"Method based on Lowdin population analysis "// &
207 "(computationally expensive, since the diagonalization of the "// &
208 "overlap matrix is required, but possibly more robust than Mulliken)", &
209 "Method based on Mulliken population analysis using the net AO and "// &
210 "overlap populations (computationally cheap method)", &
211 "Method based on Mulliken gross orbital populations (GOP)"), &
214 usage=
"PLUS_U_METHOD Lowdin")
219 name=
"RELAX_MULTIPLICITY", &
220 variants=[
"RELAX_MULTIP"], &
221 description=
"Tolerance in Hartrees. Do not enforce the occupation "// &
222 "of alpha and beta MOs due to the initially "// &
223 "defined multiplicity, but rather follow the Aufbau principle. "// &
224 "A value greater than zero activates this option. "// &
225 "If alpha/beta MOs differ in energy less than this tolerance, "// &
226 "then alpha-MO occupation is preferred even if it is higher "// &
227 "in energy (within the tolerance). "// &
228 "Such spin-symmetry broken (spin-polarized) occupation is used "// &
229 "as SCF input, which (is assumed to) bias the SCF "// &
230 "towards a spin-polarized solution. "// &
231 "Thus, larger tolerance increases chances of ending up "// &
232 "with spin-polarization. "// &
233 "This option is only valid for unrestricted (i.e. spin polarised) "// &
234 "Kohn-Sham (UKS) calculations. It also needs non-zero "// &
235 "[ADDED_MOS](#CP2K_INPUT.FORCE_EVAL.DFT.SCF.ADDED_MOS) to actually affect the calculations, "// &
236 "which is why it is not expected to work with [OT](#CP2K_INPUT.FORCE_EVAL.DFT.SCF.OT) "// &
237 "and may raise errors when used with OT. "// &
238 "For more details see [this discussion](https://github.com/cp2k/cp2k/issues/4389).", &
239 usage=
"RELAX_MULTIPLICITY 0.00001", &
241 default_r_val=0.0_dp)
246 description=
"Read the grid size for subcell generation in the construction of "// &
247 "neighbor lists.", usage=
"SUBCELLS 1.5", &
248 n_var=1, default_r_val=2.0_dp)
253 description=
"Specify size of automatically generated auxiliary (RI) basis sets: "// &
254 "Options={small,medium,large,huge}", &
255 usage=
"AUTO_BASIS {basis_type} {basis_size}", &
256 type_of_var=
char_t, repeats=.true., n_var=-1, default_c_vals=[
"X",
"X"])
261 name=
"SURFACE_DIPOLE_CORRECTION", &
262 variants=
s2a(
"SURFACE_DIPOLE", &
264 description=
"For slab calculations with asymmetric geometries, activate the correction of "// &
265 "the electrostatic potential with "// &
266 "by compensating for the surface dipole. Implemented only for slabs with normal "// &
267 "parallel to one Cartesian axis. The normal direction is given by the keyword SURF_DIP_DIR", &
269 default_l_val=.false., &
270 lone_keyword_l_val=.true., &
276 name=
"SURF_DIP_DIR", &
277 description=
"Cartesian axis parallel to surface normal.", &
278 enum_c_vals=
s2a(
"X",
"Y",
"Z"), &
279 enum_i_vals=[1, 2, 3], &
280 enum_desc=
s2a(
"Along x",
"Along y",
"Along z"), &
283 usage=
"SURF_DIP_DIR Z")
288 name=
"SURF_DIP_POS", &
289 description=
"This keyword assigns an user defined position in Angstroms "// &
290 "in the direction normal to the surface (given by SURF_DIP_DIR). "// &
291 "The default value is -1.0_dp which appplies the correction at a position "// &
292 "that has minimum electron density on the grid.", &
293 usage=
"SURF_DIP_POS -1.0_dp", &
294 default_r_val=-1.0_dp)
299 name=
"SURF_DIP_SWITCH", &
300 description=
"WARNING: Experimental feature under development that will help the "// &
301 "user to switch parameters to facilitate SCF convergence. In its current form the "// &
302 "surface dipole correction is switched off if the calculation does not converge in "// &
303 "(0.5*MAX_SCF + 1) outer_scf steps. "// &
304 "The default value is .FALSE.", &
305 usage=
"SURF_DIP_SWITCH .TRUE.", &
306 default_l_val=.false., &
307 lone_keyword_l_val=.true.)
312 name=
"CORE_CORR_DIP", &
313 description=
"If the total CORE_CORRECTION is non-zero and surface dipole "// &
314 "correction is switched on, presence of this keyword will adjust electron "// &
315 "density via MO occupation to reflect the total CORE_CORRECTION. "// &
316 "The default value is .FALSE.", &
317 usage=
"CORE_CORR_DIP .TRUE.", &
318 default_l_val=.false., &
319 lone_keyword_l_val=.true.)
325 description=
"Sorts basis functions according to a selected criterion. "// &
326 "Sorting by exponent can improve data locality for selected exact-exchange and RI workflows.", &
327 enum_c_vals=
s2a(
"DEFAULT",
"EXP"), &
329 enum_desc=
s2a(
"don't sort",
"sort w.r.t. exponent"), &
331 usage=
"SORT_BASIS EXP")
348 CALL create_kg_section(subsection)
364 CALL create_admm_section(subsection)
380 CALL create_relativistic_section(subsection)
384 CALL create_sic_section(subsection)
388 CALL create_low_spin_roks_section(subsection)
429 CALL create_implicit_solv_section(subsection)
433 CALL create_density_fitting_section(subsection)
449 CALL create_rtp_section(subsection)
457 CALL create_sccs_section(subsection)
469 CALL create_hairy_probes_section(subsection)
473 CALL create_pcc_section(subsection)
477 CALL create_paep_section(subsection)
489 SUBROUTINE create_hairy_probes_section(section)
495 cpassert(.NOT.
ASSOCIATED(section))
497 name=
"HAIRY_PROBES", &
498 description=
"Sets up a Hairy Probe calculation. ", &
499 n_keywords=0, n_subsections=0, repeats=.true.)
502 name=
"_SECTION_PARAMETERS_", &
503 description=
"Controls the activation of hairy probe", &
504 usage=
"&HAIRY_PROBES ON", &
505 default_l_val=.false., &
506 lone_keyword_l_val=.true.)
511 description=
"Indexes of the atoms to which the probes are attached.", &
512 usage=
"ATOM_IDS <INTEGER> .. <INTEGER>", &
518 description=
"Electronic temperature [K]", &
526 description=
"Chemical potential of the electrons in the probes [eV] ", &
534 description=
"Parameter for solution probes ", &
535 usage=
"ALPHA <REAL>", &
536 default_r_val=1.0_dp)
541 description=
" Tolerance for accuracy checks on occupation numbers "// &
542 "calculated using hair-probes. ", &
543 usage=
"EPS_HP <REAL>", &
544 default_r_val=1.0e-5_dp)
547 END SUBROUTINE create_hairy_probes_section
555 SUBROUTINE create_implicit_solv_section(section)
561 NULLIFY (keyword, subsection, print_key)
562 cpassert(.NOT.
ASSOCIATED(section))
564 description=
"Adds an implicit solvation model to the DFT calculation."// &
565 " Know also as Self Consistent Reaction Field.", &
566 n_keywords=0, n_subsections=0, repeats=.false.)
569 description=
"Value of the dielectric constant outside the sphere", &
570 usage=
"EPS_OUT <REAL>", &
571 default_r_val=1.0_dp)
576 description=
"Maximum value of L used in the multipole expansion", &
577 usage=
"LMAX <INTEGER>", &
582 CALL create_sphere_section(subsection)
587 description=
"Controls the printing basic info about the method", &
592 END SUBROUTINE create_implicit_solv_section
599 SUBROUTINE create_sphere_section(section)
605 NULLIFY (keyword, subsection)
606 cpassert(.NOT.
ASSOCIATED(section))
608 description=
"Treats the implicit solvent environment like a sphere", &
609 n_keywords=0, n_subsections=0, repeats=.false.)
612 description=
"Value of the spherical cavity in the dielectric medium", &
613 usage=
"RADIUS <REAL>", &
614 unit_str=
"angstrom", &
619 CALL create_center_section(subsection)
623 END SUBROUTINE create_sphere_section
630 SUBROUTINE create_center_section(section)
636 cpassert(.NOT.
ASSOCIATED(section))
638 description=
"Defines the center of the sphere.", &
639 n_keywords=0, n_subsections=0, repeats=.false.)
641 description=
"Coordinates of the center of the sphere", &
642 usage=
"XYZ <REAL> <REAL> <REAL>", &
643 unit_str=
"angstrom", &
644 type_of_var=
real_t, n_var=3)
649 description=
"Defines a list of atoms to define the center of the sphere", &
650 usage=
"ATOM_LIST <INTEGER> .. <INTEGER>", &
656 description=
"Defines the weight used to define the center of the sphere"// &
657 " (if ATOM_LIST is provided)", &
658 usage=
"WEIGHT_TYPE (UNIT|MASS)", &
659 enum_c_vals=[
"UNIT",
"MASS"], &
666 description=
"Specify if the center of the sphere should be fixed or"// &
667 " allowed to move", &
668 usage=
"FIXED <LOGICAL>", &
669 default_l_val=.true.)
673 END SUBROUTINE create_center_section
679 SUBROUTINE create_admm_section(section)
685 cpassert(.NOT.
ASSOCIATED(section))
686 CALL section_create(section, __location__, name=
"AUXILIARY_DENSITY_MATRIX_METHOD", &
687 description=
"Controls the auxiliary density matrix method (ADMM), which evaluates "// &
688 "Hartree-Fock exchange on a smaller auxiliary basis and adds an exchange correction.", &
689 n_keywords=1, n_subsections=1, repeats=.false., &
693 keyword, __location__, &
695 description=
"Named ADMM variant from the literature. This shortcut sets METHOD, "// &
696 "ADMM_PURIFICATION_METHOD, and EXCH_SCALING_MODEL consistently for the selected variant.", &
697 enum_c_vals=
s2a(
"NONE",
"ADMM1",
"ADMM2",
"ADMMS",
"ADMMP",
"ADMMQ"), &
698 enum_desc=
s2a(
"No short name is used, use specific definitions (default)", &
699 "ADMM1 method from Guidon2010", &
700 "ADMM2 method from Guidon2010", &
701 "ADMMS method from Merlot2014", &
702 "ADMMP method from Merlot2014", &
703 "ADMMQ method from Merlot2014"), &
711 keyword, __location__, &
712 name=
"ADMM_PURIFICATION_METHOD", &
713 description=
"Method that shall be used for wavefunction fitting. Use MO_DIAG for MD.", &
714 enum_c_vals=
s2a(
"NONE",
"CAUCHY",
"CAUCHY_SUBSPACE",
"MO_DIAG",
"MO_NO_DIAG",
"MCWEENY",
"NONE_DM"), &
718 enum_desc=
s2a(
"Do not apply any purification", &
719 "Perform purification via general Cauchy representation", &
720 "Perform purification via Cauchy representation in occupied subspace", &
721 "Calculate MO derivatives via Cauchy representation by diagonalization", &
722 "Calculate MO derivatives via Cauchy representation by inversion", &
723 "Perform original McWeeny purification via matrix multiplications", &
724 "Do not apply any purification, works directly with density matrix"), &
730 keyword, __location__, &
732 description=
"Method that shall be used for wavefunction fitting. Use BASIS_PROJECTION for MD.", &
733 enum_c_vals=
s2a(
"BASIS_PROJECTION",
"BLOCKED_PROJECTION_PURIFY_FULL",
"BLOCKED_PROJECTION", &
734 "CHARGE_CONSTRAINED_PROJECTION"), &
737 enum_desc=
s2a(
"Construct auxiliary density matrix from auxiliary basis.", &
738 "Construct auxiliary density from a blocked Fock matrix,"// &
739 " but use the original matrix for purification.", &
740 "Construct auxiliary density from a blocked Fock matrix.", &
741 "Construct auxiliary density from auxiliary basis enforcing charge constrain."), &
747 keyword, __location__, &
748 name=
"EXCH_SCALING_MODEL", &
749 description=
"Scaling of the exchange correction calculated by the auxiliary density matrix.", &
750 enum_c_vals=
s2a(
"NONE",
"MERLOT"), &
752 enum_desc=
s2a(
"No scaling is enabled, refers to methods ADMM1, ADMM2 or ADMMQ.", &
753 "Exchange scaling according to Merlot (2014)"), &
759 keyword, __location__, &
760 name=
"EXCH_CORRECTION_FUNC", &
761 description=
"Exchange functional used for the ADMM correction. It should be chosen consistently "// &
762 "with the exchange functional in the main XC setup. LibXC implementations require linking with LibXC.", &
763 enum_c_vals=
s2a(
"DEFAULT",
"PBEX",
"NONE",
"OPTX",
"BECKE88X", &
764 "PBEX_LIBXC",
"BECKE88X_LIBXC",
"OPTX_LIBXC",
"DEFAULT_LIBXC",
"LDA_X_LIBXC"), &
770 enum_desc=
s2a(
"Use PBE-based corrections according to the chosen interaction operator.", &
771 "Use PBEX functional for exchange correction.", &
772 "No correction: X(D)-x(d)-> 0.", &
773 "Use OPTX functional for exchange correction.", &
774 "Use Becke88X functional for exchange correction.", &
775 "Use PBEX functional (LibXC implementation) for exchange correction.", &
776 "Use Becke88X functional (LibXC implementation) for exchange correction.", &
777 "Use OPTX functional (LibXC implementation) for exchange correction.", &
778 "Use PBE-based corrections (LibXC where possible) to the chosen interaction operator.", &
779 "Use Slater X functional (LibXC where possible) for exchange correction."), &
785 description=
"OPTX a1 coefficient", &
786 default_r_val=1.05151_dp)
790 description=
"OPTX a2 coefficient", &
791 default_r_val=1.43169_dp)
795 description=
"OPTX gamma coefficient", &
796 default_r_val=0.006_dp)
801 description=
"Specifies a list of atoms.", &
802 usage=
"BLOCK_LIST {integer} {integer} .. {integer}", &
803 n_var=-1, type_of_var=
integer_t, repeats=.true.)
808 description=
"Define accuracy of DBCSR operations", &
809 usage=
"EPS_FILTER", default_r_val=0.0_dp)
813 END SUBROUTINE create_admm_section
819 SUBROUTINE create_density_fitting_section(section)
825 NULLIFY (keyword, print_key)
826 cpassert(.NOT.
ASSOCIATED(section))
827 CALL section_create(section, __location__, name=
"DENSITY_FITTING", &
828 description=
"Setup parameters for density fitting (Bloechl charges or density derived "// &
829 "atomic point charges (DDAPC) charges)", &
830 n_keywords=7, n_subsections=0, repeats=.false., &
834 description=
"Specifies the numbers of gaussian used to fit the QM density for each atomic site.", &
835 usage=
"NUM_GAUSS {integer}", &
836 n_var=1, type_of_var=
integer_t, default_i_val=3)
841 description=
"Specifies the progression factor for the gaussian exponent for each atomic site.", &
842 usage=
"PFACTOR {real}", &
843 n_var=1, type_of_var=
real_t, default_r_val=1.5_dp)
848 description=
"Specifies the smallest radius of the gaussian used in the fit. All other radius are"// &
849 " obtained with the progression factor.", &
850 usage=
"MIN_RADIUS {real}", &
851 unit_str=
"angstrom", n_var=1, type_of_var=
real_t, default_r_val=0.5_dp)
856 description=
"Specifies all the radius of the gaussian used in the fit for each atomic site. The use"// &
857 " of this keyword disables all other keywords of this section.", &
858 usage=
"RADII {real} {real} .. {real}", &
859 unit_str=
"angstrom", n_var=-1, type_of_var=
real_t)
864 description=
"Cutoff for charge fit in G-space.", &
865 usage=
"GCUT {real}", &
866 n_var=1, type_of_var=
real_t, default_r_val=sqrt(6.0_dp))
871 description=
"Controls the printing of basic information during the run", &
874 CALL keyword_create(keyword, __location__, name=
"CONDITION_NUMBER", &
875 description=
"Prints information regarding the condition numbers of the A matrix (to be inverted)", &
876 usage=
"CONDITION_NUMBER <LOGICAL>", &
877 default_l_val=.false., lone_keyword_l_val=.true.)
884 END SUBROUTINE create_density_fitting_section
891 SUBROUTINE create_relativistic_section(section)
896 cpassert(.NOT.
ASSOCIATED(section))
898 description=
"parameters needed and setup for relativistic calculations", &
899 n_keywords=5, n_subsections=0, repeats=.false.)
904 description=
"type of relativistic correction used", &
905 usage=
"method (NONE|DKH|ZORA)", default_i_val=
rel_none, &
906 enum_c_vals=
s2a(
"NONE",
"DKH",
"ZORA"), &
908 enum_desc=
s2a(
"Use no relativistic correction", &
909 "Use Douglas-Kroll-Hess method", &
915 description=
"The order of the DKH transformation ", &
916 usage=
"DKH_order 2", default_i_val=2)
921 description=
"Type of ZORA method to be used", &
923 enum_c_vals=
s2a(
"FULL",
"MP",
"scMP"), &
924 enum_desc=
s2a(
"Full ZORA method (not implemented)", &
925 "ZORA with atomic model potential", &
926 "Scaled ZORA with atomic model potential"), &
931 CALL keyword_create(keyword, __location__, name=
"transformation", &
932 description=
"Type of DKH transformation", &
933 usage=
"transformation (FULL|MOLECULE|ATOM)", default_i_val=
rel_trans_atom, &
934 enum_c_vals=
s2a(
"FULL",
"MOLECULE",
"ATOM"), &
936 enum_desc=
s2a(
"Use full matrix transformation", &
937 "Use transformation blocked by molecule", &
938 "Use atomic blocks"))
943 description=
"The minimal atomic number considered for atom transformation", &
944 usage=
"z_cutoff 50", default_i_val=1)
949 description=
"External potential used in DKH transformation, full 1/r or erfc(r)/r", &
950 usage=
"POTENTIAL {FULL,ERFC}", default_i_val=
rel_pot_erfc, &
951 enum_c_vals=
s2a(
"FULL",
"ERFC"), &
956 END SUBROUTINE create_relativistic_section
963 SUBROUTINE create_kg_section(section)
969 cpassert(.NOT.
ASSOCIATED(section))
971 description=
"Specifies the parameters for a Kim-Gordon-like partitioning"// &
972 " into molecular subunits", &
973 n_keywords=0, n_subsections=1, repeats=.false., &
976 NULLIFY (keyword, subsection, print_key)
988 CALL keyword_create(keyword, __location__, name=
"COLORING_METHOD", &
989 description=
"Which algorithm to use for coloring.", &
990 usage=
"COLORING_METHOD GREEDY", &
992 enum_c_vals=
s2a(
"DSATUR",
"GREEDY"), &
993 enum_desc=
s2a(
"Maximum degree of saturation, relatively accurate", &
994 "Greedy, fast coloring, less accurate"), &
1000 description=
"Algorithm to use for the calculation of the nonadditive kinetic energy.", &
1001 usage=
"TNADD_METHOD ATOMIC", &
1003 enum_c_vals=
s2a(
"EMBEDDING",
"RI_EMBEDDING",
"ATOMIC",
"NONE"), &
1004 enum_desc=
s2a(
"Use full embedding potential (see Iannuzzi et al)", &
1005 "Use full embedding potential with RI density fitting", &
1006 "Use sum of atomic model potentials", &
1007 "Do not use kinetic energy embedding"), &
1012 CALL keyword_create(keyword, __location__, name=
"INTEGRATION_GRID", &
1013 description=
"Grid [small,medium,large,huge]to be used for the TNADD integration.", &
1014 usage=
"INTEGRATION_GRID MEDIUM", &
1015 default_c_val=
"MEDIUM")
1020 description=
"Print section", &
1021 n_keywords=0, n_subsections=1, repeats=.false.)
1024 description=
"Controls the printing of the neighbor lists.", &
1025 print_level=
low_print_level, filename=
"__STD_OUT__", unit_str=
"angstrom")
1028 name=
"SAB_ORB_FULL", &
1029 description=
"Activates the printing of the full orbital "// &
1030 "orbital neighbor lists.", &
1031 default_l_val=.false., &
1032 lone_keyword_l_val=.true.)
1037 name=
"SAB_ORB_MOLECULAR", &
1038 description=
"Activates the printing of the orbital "// &
1039 "orbital neighbor lists for molecular subsets.", &
1040 default_l_val=.false., &
1041 lone_keyword_l_val=.true.)
1047 description=
"Activates the printing of the orbital "// &
1048 "atomic potential neighbor list.", &
1049 default_l_val=.false., &
1050 lone_keyword_l_val=.true.)
1060 END SUBROUTINE create_kg_section
1073 cpassert(.NOT.
ASSOCIATED(section))
1075 description=
"This section is used to set up the BSSE calculation. "// &
1076 "It also requires that for each atomic kind X a kind X_ghost is present, "// &
1077 "with the GHOST keyword specified, in addition to the other required fields.", &
1078 n_keywords=3, n_subsections=1, repeats=.false.)
1080 NULLIFY (keyword, subsection)
1083 description=
"Specify the atom number belonging to this fragment.", &
1084 n_keywords=2, n_subsections=0, repeats=.true.)
1087 description=
"Specifies a list of atoms.", &
1088 usage=
"LIST {integer} {integer} .. {integer}", &
1089 repeats=.true., n_var=-1, type_of_var=
integer_t)
1097 CALL section_create(subsection, __location__, name=
"CONFIGURATION", &
1098 description=
"Specify additional parameters for the combinatorial configurations. "// &
1099 "Use this section to manually specify charge and multiplicity of the fragments "// &
1100 "and their combinations.", &
1101 n_keywords=2, n_subsections=0, repeats=.true.)
1104 description=
"Specifies the global configuration using 1 or 0 for each fragment. "// &
1105 "1 specifies the respective fragment as used, 0 as unused.", &
1106 usage=
"GLB_CONF {integer} {integer} .. {integer}", &
1112 description=
"Specifies the subconfiguration using 1 or 0 belonging to the global configuration. "// &
1113 "1 specifies the respective fragment as real, 0 as ghost.", &
1114 usage=
"SUB_CONF {integer} {integer} .. {integer}", &
1120 name=
"MULTIPLICITY", &
1121 variants=[
"MULTIP"], &
1122 description=
"Specify for each fragment the multiplicity. Two times the total spin plus one. "// &
1123 "Specify 3 for a triplet, 4 for a quartet,and so on. Default is 1 (singlet) for an "// &
1124 "even number and 2 (doublet) for an odd number of electrons.", &
1125 usage=
"MULTIPLICITY 3", &
1131 description=
"The total charge for each fragment.", &
1132 usage=
"CHARGE -1", &
1139 CALL section_create(subsection, __location__, name=
"FRAGMENT_ENERGIES", &
1140 description=
"This section contains the energies of the fragments already"// &
1141 " computed. It is useful as a summary and specifically for restarting BSSE runs.", &
1142 n_keywords=2, n_subsections=0, repeats=.true.)
1143 CALL keyword_create(keyword, __location__, name=
"_DEFAULT_KEYWORD_", &
1144 description=
"The energy computed for each fragment", repeats=.true., &
1145 usage=
"{REAL}", type_of_var=
real_t)
1151 CALL create_print_bsse_section(subsection)
1162 SUBROUTINE create_print_bsse_section(section)
1167 cpassert(.NOT.
ASSOCIATED(section))
1169 description=
"Section of possible print options in BSSE code.", &
1170 n_keywords=0, n_subsections=1, repeats=.false.)
1174 description=
"Controls the printing of information regarding the run.", &
1180 description=
"Controls the dumping of the restart file during BSSE runs. "// &
1181 "By default the restart is updated after each configuration calculation is "// &
1188 END SUBROUTINE create_print_bsse_section
1195 SUBROUTINE create_rigpw_section(section)
1198 cpassert(.NOT.
ASSOCIATED(section))
1200 description=
"This section specifies optional parameters for RIGPW.", &
1201 n_keywords=1, n_subsections=0, repeats=.false.)
1228 END SUBROUTINE create_rigpw_section
1239 LOGICAL,
INTENT(in) :: create_subsections
1244 cpassert(.NOT.
ASSOCIATED(section))
1246 description=
"Controls the multigrid used by GPW/GAPW to represent densities, "// &
1247 "potentials, and Gaussian products on real-space grids.", &
1248 n_keywords=5, n_subsections=1, repeats=.false.)
1251 description=
"Number of multigrid levels. Smooth Gaussian products can be mapped to "// &
1252 "coarser levels, while sharper products require finer levels.", &
1253 usage=
"ngrids 1", default_i_val=4)
1259 "Plane-wave cutoff of the finest real-space grid level. "// &
1260 "Increasing this value improves the grid representation, but it is "// &
1261 "not a substitute for converging the Gaussian basis set. "// &
1262 "Default value for SE or DFTB calculation is 1.0 [Ry].", &
1263 usage=
"cutoff 300", &
1265 n_var=1, unit_str=
"Ry")
1269 CALL keyword_create(keyword, __location__, name=
"progression_factor", &
1270 description=
"Factor used to derive the cutoff of coarser multigrid levels when "// &
1271 "they are not given explicitly.", &
1272 usage=
"progression_factor <integer>", default_r_val=3._dp)
1276 CALL keyword_create(keyword, __location__, name=
"commensurate", &
1277 description=
"If the grids should be commensurate. If true overrides "// &
1278 "the progression factor and the cutoffs of the sub grids", &
1279 usage=
"commensurate", default_l_val=.false., &
1280 lone_keyword_l_val=.true.)
1285 description=
"If both rho and rho_gspace are needed ", &
1286 usage=
"realspace", default_l_val=.false., &
1287 lone_keyword_l_val=.true.)
1292 variants=[
"RELATIVE_CUTOFF"], &
1293 description=
"Controls to which multigrid level a Gaussian product is mapped. "// &
1294 "It is the reference cutoff for a Gaussian with exponent alpha=1. Larger values "// &
1295 "keep more Gaussian products on finer grids and can be important for accurate "// &
1296 "energies, forces, stress tensors, and variable-cell simulations.", &
1297 usage=
"RELATIVE_CUTOFF real", default_r_val=20.0_dp, &
1302 CALL keyword_create(keyword, __location__, name=
"MULTIGRID_SET", &
1303 description=
"Activate a manual setting of the multigrids", &
1304 usage=
"MULTIGRID_SET", default_l_val=.false.)
1309 name=
"SKIP_LOAD_BALANCE_DISTRIBUTED", &
1310 description=
"Skips load balancing on distributed multigrids. "// &
1311 "Memory usage is O(p) so may be used "// &
1312 "for all but the very largest runs.", &
1313 usage=
"SKIP_LOAD_BALANCE_DISTRIBUTED", &
1314 default_l_val=.false., &
1315 lone_keyword_l_val=.true.)
1324 CALL keyword_create(keyword, __location__, name=
"MULTIGRID_CUTOFF", &
1325 variants=[
"CUTOFF_LIST"], &
1326 description=
"List of cutoff values to set up multigrids manually", &
1327 usage=
"MULTIGRID_CUTOFF 200.0 100.0 ", &
1334 IF (create_subsections)
THEN
1335 NULLIFY (subsection)
1340 NULLIFY (subsection)
1358 cpassert(.NOT.
ASSOCIATED(section))
1359 CALL section_create(section, __location__, name=
"interpolator", &
1360 description=
"kind of interpolation used between the multigrids", &
1361 n_keywords=5, n_subsections=0, repeats=.false.)
1363 NULLIFY (keyword, print_key)
1366 description=
"the interpolator to use", &
1367 usage=
"kind spline3", &
1369 enum_c_vals=
s2a(
"pw",
"spline3_nopbc",
"spline3"), &
1375 CALL keyword_create(keyword, __location__, name=
"safe_computation", &
1376 description=
"if a non unrolled calculation is to be performed in parallel", &
1377 usage=
"safe_computation OFF", &
1378 default_l_val=.false., &
1379 lone_keyword_l_val=.true.)
1383 CALL keyword_create(keyword, __location__, name=
"aint_precond", &
1384 description=
"the approximate inverse to use to get the starting point"// &
1385 " for the linear solver of the spline3 methods", &
1386 usage=
"aint_precond copy", &
1388 enum_c_vals=
s2a(
"copy",
"spl3_nopbc_aint1",
"spl3_nopbc_aint2", &
1389 "spl3_nopbc_precond1",
"spl3_nopbc_precond2",
"spl3_nopbc_precond3"), &
1396 description=
"The preconditioner used"// &
1397 " for the linear solver of the spline3 methods", &
1398 usage=
"PRECOND copy", &
1400 enum_c_vals=
s2a(
"copy",
"spl3_nopbc_aint1",
"spl3_nopbc_aint2", &
1401 "spl3_nopbc_precond1",
"spl3_nopbc_precond2",
"spl3_nopbc_precond3"), &
1408 description=
"accuracy on the solution for spline3 the interpolators", &
1409 usage=
"eps_x 1.e-15", default_r_val=1.e-10_dp)
1414 description=
"accuracy on the residual for spline3 the interpolators", &
1415 usage=
"eps_r 1.e-15", default_r_val=1.e-10_dp)
1420 variants=[
'maxiter'], &
1421 description=
"the maximum number of iterations", &
1422 usage=
"max_iter 200", default_i_val=100)
1428 description=
"if convergence information about the linear solver"// &
1429 " of the spline methods should be printed", &
1431 each_iter_values=[10], filename=
"__STD_OUT__", &
1443 SUBROUTINE create_sic_section(section)
1448 cpassert(.NOT.
ASSOCIATED(section))
1450 description=
"parameters for the self interaction correction", &
1451 n_keywords=6, n_subsections=0, repeats=.false., &
1456 CALL keyword_create(keyword, __location__, name=
"SIC_SCALING_A", &
1457 description=
"Scaling of the coulomb term in sic [experimental]", &
1458 usage=
"SIC_SCALING_A 0.5", &
1460 default_r_val=1.0_dp)
1464 CALL keyword_create(keyword, __location__, name=
"SIC_SCALING_B", &
1465 description=
"Scaling of the xc term in sic [experimental]", &
1466 usage=
"SIC_SCALING_B 0.5", &
1468 default_r_val=1.0_dp)
1473 description=
"Method used to remove the self interaction", &
1474 usage=
"SIC_METHOD MAURI_US", &
1476 enum_c_vals=
s2a(
"NONE",
"MAURI_US",
"MAURI_SPZ",
"AD",
"EXPLICIT_ORBITALS"), &
1478 enum_desc=
s2a(
"Do not apply a sic correction", &
1479 "Employ a (scaled) correction proposed by Mauri and co-workers"// &
1480 " on the spin density / doublet unpaired orbital", &
1481 "Employ a (scaled) Perdew-Zunger expression"// &
1482 " on the spin density / doublet unpaired orbital", &
1483 "The average density correction", &
1484 "(scaled) Perdew-Zunger correction explicitly on a set of orbitals."), &
1490 description=
"Type of orbitals treated with the SIC", &
1491 usage=
"ORBITAL_SET ALL", &
1493 enum_c_vals=
s2a(
"UNPAIRED",
"ALL"), &
1494 enum_desc=
s2a(
"correction for the unpaired orbitals only, requires a restricted open shell calculation", &
1495 "correction for all orbitals, requires a LSD or ROKS calculation"), &
1500 END SUBROUTINE create_sic_section
1507 SUBROUTINE create_low_spin_roks_section(section)
1512 cpassert(.NOT.
ASSOCIATED(section))
1513 CALL section_create(section, __location__, name=
"LOW_SPIN_ROKS", &
1514 description=
"Specify the details of the low spin ROKS method. "// &
1515 "In particular, one can specify various terms added to the energy of the high spin roks configuration"// &
1516 " with a energy scaling factor, and a prescription of the spin state.", &
1517 n_keywords=6, n_subsections=0, repeats=.false.)
1520 CALL keyword_create(keyword, __location__, name=
"ENERGY_SCALING", &
1521 description=
"The scaling factors for each term added to the total energy. "// &
1522 "This list should contain one number for each term added to the total energy.", &
1523 usage=
"ENERGY_SCALING 1.0 -1.0 ", &
1524 n_var=-1, type_of_var=
real_t, repeats=.false.)
1528 keyword, __location__, name=
"SPIN_CONFIGURATION", &
1529 description=
"For each singly occupied orbital, specify if this should be an alpha (=1) or a beta (=2) orbital. "// &
1530 "This keyword should be repeated, each repetition corresponding to an additional term.", &
1531 usage=
"SPIN_CONFIGURATION 1 2", &
1532 n_var=-1, type_of_var=
integer_t, repeats=.true.)
1536 END SUBROUTINE create_low_spin_roks_section
1542 SUBROUTINE create_rtp_section(section)
1546 TYPE(
section_type),
POINTER :: print_key, print_section, subsection
1549 cpassert(.NOT.
ASSOCIATED(section))
1550 CALL section_create(section, __location__, name=
"REAL_TIME_PROPAGATION", &
1551 description=
"Parameters needed to set up the real time propagation"// &
1552 " for the electron dynamics. This currently works only in the NVE ensemble.", &
1553 n_keywords=4, n_subsections=4, repeats=.false., &
1557 description=
"Maximal number of iterations for the self consistent propagator loop.", &
1558 usage=
"MAX_ITER 10", &
1564 description=
"Convergence criterion for the self consistent propagator loop.", &
1565 usage=
"EPS_ITER 1.0E-5", &
1566 default_r_val=1.0e-7_dp)
1571 description=
"Speciefies how many steps will be used for extrapolation. "// &
1572 "One will be always used which is means X(t+dt)=X(t)", &
1573 usage=
"ASPC_ORDER 3", &
1579 description=
"Which method should be used to calculate the exponential"// &
1580 " in the propagator. It is recommended to use BCH when employing density_propagation "// &
1581 "and ARNOLDI otherwise.", &
1582 usage=
"MAT_EXP TAYLOR", default_i_val=
do_arnoldi, &
1583 enum_c_vals=
s2a(
"TAYLOR",
"PADE",
"ARNOLDI",
"BCH",
"EXACT"), &
1585 enum_desc=
s2a(
"exponential is evaluated using scaling and squaring in combination"// &
1586 " with a taylor expansion of the exponential.", &
1587 "uses scaling and squaring together with the pade approximation", &
1588 "uses arnoldi subspace algorithm to compute exp(H)*MO directly, can't be used in "// &
1589 "combination with Crank Nicholson or density propagation", &
1590 "Uses a Baker-Campbell-Hausdorff expansion to propagate the density matrix,"// &
1591 " only works for density propagation", &
1592 "Uses diagonalisation of the exponent matrices to determine the "// &
1593 "matrix exponential exactly. Only implemented for GWBSE."))
1597 CALL keyword_create(keyword, __location__, name=
"DENSITY_PROPAGATION", &
1598 description=
"The density matrix is propagated instead of the molecular orbitals. "// &
1599 "This can allow a linear scaling simulation. The density matrix is filtered with "// &
1600 "the threshold based on the EPS_FILTER keyword from the LS_SCF section", &
1601 usage=
"DENSITY_PROPAGATION .TRUE.", &
1602 default_l_val=.false., lone_keyword_l_val=.true.)
1606 CALL keyword_create(keyword, __location__, name=
"SC_CHECK_START", &
1607 description=
"Speciefies how many iteration steps will be done without "// &
1608 "a check for self consistency. Can save some time in big calculations.", &
1609 usage=
"SC_CHECK_START 3", &
1614 CALL keyword_create(keyword, __location__, name=
"EXP_ACCURACY", &
1615 description=
"Accuracy for the taylor and pade approximation. "// &
1616 "This is only an upper bound bound since the norm used for the guess "// &
1617 "is an upper bound for the needed one.", &
1618 usage=
"EXP_ACCURACY 1.0E-6", &
1619 default_r_val=1.0e-9_dp)
1624 description=
"Which propagator should be used for the orbitals", &
1625 usage=
"PROPAGATOR ETRS", default_i_val=
do_etrs, &
1626 enum_c_vals=
s2a(
"ETRS",
"CN",
"EM"), &
1628 enum_desc=
s2a(
"enforced time reversible symmetry", &
1629 "Crank Nicholson propagator", &
1630 "Exponential midpoint propagator"))
1635 description=
"Controls the initial WFN used for propagation. "// &
1636 "Note that some energy contributions may not be "// &
1637 "initialized in the restart cases, for instance "// &
1638 "electronic entropy energy in the case of smearing.", &
1639 usage=
"INITIAL_WFN SCF_WFN", default_i_val=
use_scf_wfn, &
1640 enum_c_vals=
s2a(
"SCF_WFN",
"RESTART_WFN",
"RT_RESTART"), &
1642 enum_desc=
s2a(
"An SCF run is performed to get the initial state.", &
1643 "A wavefunction from a previous SCF is propagated. Especially useful,"// &
1644 " if electronic constraints or restraints are used in the previous calculation, "// &
1645 "since these do not work in the rtp scheme.", &
1646 "use the wavefunction of a real time propagation/ehrenfest run"))
1650 CALL keyword_create(keyword, __location__, name=
"APPLY_WFN_MIX_INIT_RESTART", &
1651 description=
"If set to True and in the case of INITIAL_WFN=RESTART_WFN, call the "// &
1652 "DFT%PRINT%WFN_MIX section to mix the read initial wfn. The starting wave-function of the "// &
1653 "RTP will be the mixed one. Setting this to True without a defined WFN_MIX section will "// &
1654 "not do anything as defining a WFN_MIX section without this keyword for RTP run with "// &
1655 "INITIAL_WFN=RESTART_WFN. Note that if INITIAL_WFN=SCF_WFN, this keyword is not needed to "// &
1656 "apply the mixing defined in the WFN_MIX section. Default is False.", &
1657 usage=
"APPLY_WFN_MIX_INIT_RESTART", &
1658 default_l_val=.false., lone_keyword_l_val=.true.)
1662 CALL keyword_create(keyword, __location__, name=
"APPLY_DELTA_PULSE", &
1663 description=
"Applies a delta kick to the initial wfn (only RTP for now - the EMD"// &
1664 " case is not yet implemented). Only work for INITIAL_WFN=SCF_WFN", &
1665 usage=
"APPLY_DELTA_PULSE", &
1666 default_l_val=.false., lone_keyword_l_val=.true.)
1670 CALL keyword_create(keyword, __location__, name=
"APPLY_DELTA_PULSE_MAG", &
1671 description=
"Applies a magnetic delta kick to the initial wfn (only RTP for now - the EMD"// &
1672 " case is not yet implemented). Only work for INITIAL_WFN=SCF_WFN", &
1673 usage=
"APPLY_DELTA_PULSE_MAG", &
1674 default_l_val=.false., lone_keyword_l_val=.true.)
1678 CALL keyword_create(keyword, __location__, name=
"VELOCITY_GAUGE", &
1679 description=
"Perform propagation in the velocity gauge using the explicit vector potential"// &
1680 " only a constant vector potential as of now (corresonding to a delta-pulse)."// &
1681 " uses DELTA_PULSE_SCALE and DELTA_PULSE_DIRECTION to define the vector potential", &
1682 usage=
"VELOCITY_GAUGE T", &
1683 default_l_val=.false., lone_keyword_l_val=.true.)
1688 description=
"Define gauge origin for magnetic perturbation", &
1689 usage=
"GAUGE_ORIG COM", &
1690 enum_c_vals=
s2a(
"COM",
"COAC",
"USER_DEFINED",
"ZERO"), &
1691 enum_desc=
s2a(
"Use Center of Mass", &
1692 "Use Center of Atomic Charges", &
1693 "Use User Defined Point (Keyword:REF_POINT)", &
1694 "Use Origin of Coordinate System"), &
1703 CALL keyword_create(keyword, __location__, name=
"GAUGE_ORIG_MANUAL", &
1704 description=
"Manually defined gauge origin for magnetic perturbation [in Bohr!]", &
1705 usage=
"GAUGE_ORIG_MANUAL x y z", &
1707 n_var=3, default_r_vals=[0._dp, 0._dp, 0._dp], &
1714 description=
"apply gauge transformed non-local potential term"// &
1715 " only affects VELOCITY_GAUGE=.TRUE.", &
1716 usage=
"VG_COM_NL T", &
1717 default_l_val=.true., lone_keyword_l_val=.true.)
1722 description=
"Include non-local commutator for periodic delta pulse."// &
1723 " only affects PERIODIC=.TRUE.", &
1725 default_l_val=.true., lone_keyword_l_val=.true.)
1730 description=
"Use length representation delta pulse (in conjunction with PERIODIC T)."// &
1731 " This corresponds to a 1st order perturbation in the length gauge."// &
1732 " Note that this is NOT compatible with a periodic calculation!"// &
1733 " Uses the reference point defined in DFT%PRINT%MOMENTS ", &
1734 usage=
"LEN_REP T", &
1735 default_l_val=.false., lone_keyword_l_val=.true.)
1740 description=
"Apply a delta-kick that is compatible with periodic boundary conditions"// &
1741 " for any value of DELTA_PULSE_SCALE. Uses perturbation theory for the preparation of"// &
1742 " the initial wfn with the velocity operator as perturbation."// &
1743 " If LEN_REP is .FALSE. this corresponds to a first order velocity gauge."// &
1744 " Note that the pulse is only applied when INITIAL_WFN is set to SCF_WFN,"// &
1745 " and not for restarts (RT_RESTART).", &
1747 default_l_val=.true., lone_keyword_l_val=.true.)
1752 description=
"Localise the Molecular orbitals each n steps "// &
1753 "real-time propagated TDDFT, 0 means never localise", &
1754 usage=
"LOCALIZE", default_i_val=0)
1758 CALL keyword_create(keyword, __location__, name=
"DELTA_PULSE_DIRECTION", &
1759 description=
"Direction of the applied electric field. The k vector is given as"// &
1760 " 2*Pi*[i,j,k]*inv(h_mat), which for PERIODIC .FALSE. yields exp(ikr) periodic with"// &
1761 " the unit cell, only if DELTA_PULSE_SCALE is set to unity. For an orthorhombic cell"// &
1762 " [1,0,0] yields [2*Pi/L_x,0,0]. For small cells, this results in a very large kick.", &
1763 usage=
"DELTA_PULSE_DIRECTION 1 1 1", n_var=3, default_i_vals=[1, 0, 0], &
1768 CALL keyword_create(keyword, __location__, name=
"DELTA_PULSE_SCALE", &
1769 description=
"Scale the k vector, which for PERIODIC .FALSE. results in exp(ikr) no"// &
1770 " longer being periodic with the unit cell. The norm of k is the strength of the"// &
1771 " applied electric field in atomic units.", &
1772 usage=
"DELTA_PULSE_SCALE 0.01 ", n_var=1, default_r_val=0.001_dp)
1776 CALL keyword_create(keyword, __location__, name=
"HFX_BALANCE_IN_CORE", &
1777 description=
"If HFX is used, this keyword forces a redistribution/recalculation"// &
1778 " of the integrals, balanced with respect to the in core steps.", &
1779 usage=
"HFX_BALANCE_IN_CORE", &
1780 default_l_val=.false., lone_keyword_l_val=.true.)
1784 CALL keyword_create(keyword, __location__, name=
"MCWEENY_MAX_ITER", &
1785 description=
"Determines the maximum amount of McWeeny steps used after each converged"// &
1786 " step in density propagation", &
1787 usage=
"MCWEENY_MAX_ITER 2", default_i_val=1)
1792 keyword, __location__, name=
"ACCURACY_REFINEMENT", &
1793 description=
"If using density propagation some parts should be calculated with a higher accuracy than the rest"// &
1794 " to reduce numerical noise. This factor determines by how much the filtering threshold is"// &
1795 " reduced for these calculations.", &
1796 usage=
"ACCURACY_REFINEMENT", default_i_val=100)
1801 description=
"Threshold after which McWeeny is terminated", &
1802 usage=
"MCWEENY_EPS 0.00001", &
1803 default_r_val=0.0_dp)
1807 NULLIFY (print_section)
1809 description=
"Section of possible print options for an RTP runs", &
1814 description=
"Controls the printing within real time propagation and Eherenfest dynamics", &
1820 description=
"Controls the dumping of the MO restart file during rtp. "// &
1821 "By default keeps a short history of three restarts. "// &
1822 "See also RESTART_HISTORY. In density propagation this controls the printing of "// &
1823 "density matrix.", &
1825 each_iter_names=
s2a(
"MD"), each_iter_values=[20], &
1827 CALL keyword_create(keyword, __location__, name=
"BACKUP_COPIES", &
1828 description=
"Specifies the maximum number of backup copies.", &
1829 usage=
"BACKUP_COPIES {int}", &
1837 description=
"Dumps unique MO restart files during the run keeping all of them. "// &
1838 "In density propagation it dumps the density matrix instead", &
1840 each_iter_names=
s2a(
"MD"), &
1841 each_iter_values=[500], &
1843 CALL keyword_create(keyword, __location__, name=
"BACKUP_COPIES", &
1844 description=
"Specifies the maximum number of backup copies.", &
1845 usage=
"BACKUP_COPIES {int}", &
1853 description=
"Print the time-dependent field applied during an EMD simulation in "// &
1856 each_iter_names=
s2a(
"MD"), &
1857 each_iter_values=[1], &
1867 description=
"Print the integral of the current density (only if the"// &
1868 " imaginary part of the density is NOT zero.", &
1870 each_iter_names=
s2a(
"MD"), &
1871 each_iter_values=[1], &
1872 filename=
"rtp_j_int")
1877 description=
"Print the current during an EMD simulation to cube files.", &
1879 each_iter_names=
s2a(
"MD"), &
1880 each_iter_values=[20], &
1882 CALL keyword_create(keyword, __location__, name=
"BACKUP_COPIES", &
1883 description=
"Specifies the maximum number of backup copies.", &
1884 usage=
"BACKUP_COPIES {int}", &
1889 description=
"The stride (X,Y,Z) used to write the cube file "// &
1890 "(larger values result in smaller cube files). You can provide 3 numbers (for X,Y,Z) or"// &
1891 " 1 number valid for all components.", &
1892 usage=
"STRIDE 2 2 2", n_var=-1, default_i_vals=[2, 2, 2], type_of_var=
integer_t)
1901 description=
"Prints the density matrix at iterations in clear text to a file", &
1903 each_iter_names=
s2a(
"MD"), &
1904 each_iter_values=[1], &
1910 description=
"Prints the time-dependent electronic moments at "// &
1911 "iterations in clear text to a file.", &
1913 each_iter_names=
s2a(
"MD"), &
1914 each_iter_values=[1], &
1915 filename=
"__STD_OUT__")
1917 variants=
s2a(
"REF"), &
1918 description=
"Define the reference point for the calculation of the electrostatic moment.", &
1919 usage=
"REFERENCE COM", &
1920 enum_c_vals=
s2a(
"COM",
"COAC",
"USER_DEFINED",
"ZERO"), &
1921 enum_desc=
s2a(
"Use Center of Mass", &
1922 "Use Center of Atomic Charges", &
1923 "Use User Defined Point (Keyword:REFERENCE_POINT)", &
1924 "Use Origin of Coordinate System"), &
1933 CALL keyword_create(keyword, __location__, name=
"REFERENCE_POINT", &
1934 variants=
s2a(
"REF_POINT"), &
1935 description=
"Fixed reference point for the calculations of the electrostatic moment.", &
1936 usage=
"REFERENCE_POINT x y z", &
1938 n_var=3, default_r_vals=[0._dp, 0._dp, 0._dp], &
1940 unit_str=
'angstrom')
1947 description=
"Prints the calculated Fourier transform of "// &
1948 "time-dependent moments. For calculations with real time pulse (not delta kick) "// &
1949 "can be supplied with starting time.", &
1951 each_iter_names=
s2a(
"MD"), &
1952 each_iter_values=[1], &
1953 filename=
"MOMENTS_FT")
1958 description=
"Prints the chosen element of the energy dependent polarizability tensor "// &
1959 "to a specified file. The tensor is calculated as ratio of "// &
1960 "Fourier transform of the dipole "// &
1961 "moment trace and Fourier transform of the applied field "// &
1962 "(for delta kick, constant real field is applied.", &
1964 each_iter_names=
s2a(
"MD"), &
1965 each_iter_values=[1], &
1966 filename=
"POLARIZABILITY")
1968 description=
"Specifies the element of polarizability which is to be printed out "// &
1969 "(indexing starts at 1). If not explicitly provided, RTBSE code tries to guess "// &
1970 "the optimal values - for applied electric field (both delta pulse and RT field) "// &
1971 "with only a single non-zero cartesian component, prints the 3 trivially available elements.", &
1972 type_of_var=
integer_t, default_i_vals=[1, 1], n_var=2, usage=
"ELEMENT 1 1", repeats=.true.)
1979 description=
"Print the energy constituents (relevant to RTP) which make up "// &
1980 "the Total Energy", &
1982 each_iter_names=
s2a(
"MD"), &
1983 each_iter_values=[1], &
1992 NULLIFY (subsection)
1993 CALL create_rtbse_section(subsection)
1997 CALL create_ft_section(subsection)
2001 END SUBROUTINE create_rtp_section
2007 SUBROUTINE create_rtbse_section(section)
2013 cpassert(.NOT.
ASSOCIATED(section))
2016 description=
"Controls options for the real-time Bethe-Salpeter (RTBSE) propagation. "// &
2017 "Note that running RTBSE requires previous low-scaling "// &
2018 "[GW](#CP2K_INPUT.FORCE_EVAL.PROPERTIES.BANDSTRUCTURE.GW) calculation. Also note that "// &
2019 "designating this section as RTBSE run but choosing run type ENERGY leads to potential "// &
2020 "deallocation errors. More details (including description of output files) is available in "// &
2021 "the [methods](../../../../methods/properties/optical/rtbse) section of the documentation.", &
2025 CALL keyword_create(keyword, __location__, name=
"_SECTION_PARAMETERS_", &
2026 description=
"Which method is used for the time propagation of electronic structure. "// &
2027 "By default, use the TDDFT method. Can also choose RT-BSE method, which propagates the lesser "// &
2028 "Green's function instead of density matrix/molecular orbitals.", &
2029 usage=
"&RTBSE TDDFT", &
2032 enum_c_vals=
s2a(
"TDDFT",
"RTBSE"), &
2034 enum_desc=
s2a(
"Use TDDFT for density matrix/MO propagation.", &
2035 "Use RT-BSE for Green's function propagation"))
2040 CALL keyword_create(keyword, __location__, name=
"RTBSE_HAMILTONIAN", &
2041 description=
"Which Hamiltonian to use as the single-particle Hamiltonian"// &
2042 " in the Green's propagator.", &
2043 usage=
"RTBSE_HAMILTONIAN G0W0", &
2045 enum_c_vals=
s2a(
"KS",
"G0W0"), &
2047 enum_desc=
s2a(
"Use Kohn-Sham Hamiltonian for Green's propagation.", &
2048 "Use G0W0 Hamiltonian for Green's function propagation"))
2052 END SUBROUTINE create_rtbse_section
2059 SUBROUTINE create_ft_section(ft_section)
2065 cpassert(.NOT.
ASSOCIATED(ft_section))
2070 description=
"Define parameters for Fourier transforms used in RTP outputs.", &
2076 description=
"The starting time from which damping is applied and from which on the trace is "// &
2077 "considered for the Fourier transform (Fourier transform is used for the calculation of "// &
2078 "MOMENTS_FT and POLARIZABILITY). Useful for real-time pulse - "// &
2079 "one can specify the center of the pulse as the starting point.", &
2082 default_r_val=0.0_dp)
2088 description=
"Numerical Fourier transform (required for calculation of "// &
2089 "MOMENTS_FT and POLARIZABILITY) can oscillate "// &
2090 "when the final time trace values are far away from zero. "// &
2091 "This keyword controls the exponential damping added to the Fourier transform "// &
2092 "(Fourier transform is used for calculation of MOMENTS_FT and POLARIZABILITY). "// &
2093 "For negative values (the default), calculates the damping at the run time so that the last point "// &
2094 "in the time trace is reduced by factor e^(-4). When set manually, determines the time in which "// &
2095 "the moments trace is reduced by factor of e^(-1), except when set to zero, in which case "// &
2096 "the damping is not applied.", &
2104 NULLIFY (subsection)
2106 description=é
"Defines the parameters for the Pad interpolation of the "// &
2107 "Fourier transforms used in the output of RTP. Only available with the GreenX library linked to CP2K.", &
2111 CALL keyword_create(keyword, __location__,
"_SECTION_PARAMETERS_", &
2112 description=é
"Turns on the Pad interpolation", &
2114 default_l_val=.false., &
2115 lone_keyword_l_val=.true.)
2121 description=é
"The minimum energy of the Pad interpolation output.", &
2124 default_r_val=0.0_dp)
2130 description=é
"The maximum energy of the Pad interpolation output.", &
2133 default_r_val=100.0_dp)
2139 description=é
"The energy resolution of the Pad interpolation output.", &
2142 default_r_val=0.02_dp/
evolt)
2148 description=
"The lower boundary in energy for the points "// &
2149 é
"used in the fitting of Pad parameters. If negative, uses "// &
2150 "value of E_MIN (default).", &
2153 default_r_val=-1.0_dp)
2159 description=
"The upper boundary in energy for the points "// &
2160 é
"used in the fitting of Pad parameters. If negative, uses "// &
2161 "the value of E_MAX (default).", &
2164 default_r_val=-1.0_dp)
2171 END SUBROUTINE create_ft_section
2181 SUBROUTINE create_sccs_section(section)
2188 cpassert(.NOT.
ASSOCIATED(section))
2192 description=
"Define the parameters for self-consistent continuum solvation (SCCS) model", &
2201 name=
"_SECTION_PARAMETERS_", &
2202 description=
"Controls the activation of the SCCS section", &
2204 default_l_val=.false., &
2205 lone_keyword_l_val=.true.)
2211 description=
"Solvent specific tunable parameter for the calculation of "// &
2212 "the repulsion term $G^\text{rep} = \alpha S$ "// &
2213 "where $S$ is the (quantum) surface of the cavity", &
2217 default_r_val=0.0_dp, &
2224 description=
"Solvent specific tunable parameter for the calculation of "// &
2225 "the dispersion term $G^\text{dis} = \beta V$ "// &
2226 "where $V$ is the (quantum) volume of the cavity", &
2230 default_r_val=0.0_dp, &
2237 description=
"Numerical increment for the calculation of the (quantum) "// &
2238 "surface of the solute cavity", &
2242 default_r_val=2.0e-5_dp)
2247 name=
"DERIVATIVE_METHOD", &
2248 description=
"Method for the calculation of the numerical derivatives on the real-space grids", &
2249 usage=
"DERIVATIVE_METHOD cd5", &
2253 enum_c_vals=
s2a(
"FFT",
"CD3",
"CD5",
"CD7"), &
2258 enum_desc=
s2a(
"Fast Fourier transformation", &
2259 "3-point stencil central differences", &
2260 "5-point stencil central differences", &
2261 "7-point stencil central differences"))
2266 name=
"RELATIVE_PERMITTIVITY", &
2267 variants=
s2a(
"DIELECTRIC_CONSTANT",
"EPSILON_RELATIVE",
"EPSILON_SOLVENT"), &
2268 description=
"Relative permittivity (dielectric constant) of the solvent (medium)", &
2272 default_r_val=80.0_dp, &
2273 usage=
"RELATIVE_PERMITTIVITY 78.36")
2279 variants=
s2a(
"EPS_ITER",
"TAU_POL"), &
2280 description=
"Tolerance for the convergence of the polarisation density, "// &
2281 "i.e. requested accuracy for the SCCS iteration cycle", &
2285 default_r_val=1.0e-6_dp, &
2286 usage=
"EPS_ITER 1.0E-7")
2292 description=
"The SCCS iteration cycle is activated only if the SCF iteration cycle "// &
2293 "is converged to this threshold value", &
2297 default_r_val=0.5_dp, &
2298 usage=
"EPS_SCF 1.0E-2")
2304 variants=
s2a(
"SURFACE_TENSION"), &
2305 description=
"Surface tension of the solvent used for the calculation of "// &
2306 "the cavitation term $G^\text{cav} = \gamma S$ "// &
2307 "where $S$ is the (quantum) surface of the cavity", &
2311 default_r_val=0.0_dp, &
2318 description=
"Maximum number of SCCS iteration steps performed to converge "// &
2319 "within the given tolerance", &
2323 default_i_val=100, &
2324 usage=
"MAX_ITER 50")
2330 description=
"Method used for the smoothing of the dielectric function", &
2331 usage=
"METHOD Fattebert-Gygi", &
2333 enum_c_vals=
s2a(
"ANDREUSSI",
"FATTEBERT-GYGI"), &
2335 enum_desc=
s2a(
"Smoothing function proposed by Andreussi et al.", &
2336 "Smoothing function proposed by Fattebert and Gygi"))
2343 description=
"Mixing parameter (Hartree damping) employed during the iteration procedure", &
2347 default_r_val=0.6_dp, &
2352 NULLIFY (subsection)
2356 description=
"Define the parameters of the dielectric smoothing function proposed by "// &
2357 "Andreussi et al.", &
2365 description=
"Maximum density value used for the smoothing of the dielectric function", &
2369 default_r_val=0.0035_dp, &
2370 usage=
"RHO_MAX 0.01")
2376 description=
"Minimum density value used for the smoothing of the dielectric function", &
2380 default_r_val=0.0001_dp, &
2381 usage=
"RHO_MIN 0.0003")
2389 name=
"FATTEBERT-GYGI", &
2390 description=
"Define the parameters of the dielectric smoothing function proposed by "// &
2391 "Fattebert and Gygi", &
2399 description=
"Parameter β changes the width of the interface solute-solvent", &
2403 default_r_val=1.7_dp, &
2410 variants=[
"RHO0"], &
2411 description=
"Parameter $\rho_0$ defines the critical density in the middle "// &
2412 "of the interface solute-solvent", &
2416 default_r_val=0.0006_dp, &
2417 usage=
"RHO_ZERO 0.0004")
2424 END SUBROUTINE create_sccs_section
2432 SUBROUTINE create_pcc_section(section)
2438 cpassert(.NOT.
ASSOCIATED(section))
2441 name=
"PLANAR_COUNTER_CHARGE", &
2442 description=
"Define the parameters for the planar counter charge density", &
2451 name=
"_SECTION_PARAMETERS_", &
2452 description=
"Controls the activation of the planar counter charge section", &
2453 usage=
"&PLANAR_COUNTER_CHARGE ON", &
2454 default_l_val=.false., &
2455 lone_keyword_l_val=.true.)
2459 CALL keyword_create(keyword, __location__, name=
"PARALLEL_PLANE", &
2460 enum_c_vals=
s2a(
'XY',
'YZ',
'XZ'), &
2461 enum_i_vals=[3, 1, 2], &
2462 description=
"The coordinate plane that the surface is parallel to.", &
2463 enum_desc=
s2a(
"Parallel to XY",
"Parallel to YZ",
"Parallel to XZ"), &
2466 usage=
"PARALLEL_PLANE XY")
2472 description=
"Controls the distance between the center of the Gaussian "// &
2473 "and the cell boundary", &
2474 usage=
"DIST_EDGE 1.0", &
2475 unit_str=
"angstrom", &
2482 description=
"Controls the spread of the Gaussian distribution", &
2483 usage=
"GAU_C 0.1", &
2484 unit_str=
"angstrom", &
2489 END SUBROUTINE create_pcc_section
2498 SUBROUTINE create_paep_section(section)
2504 cpassert(.NOT.
ASSOCIATED(section))
2507 name=
"PLANAR_AVERAGED_V_HARTREE", &
2508 description=
"Define the parameters for calculating and printing the planar "// &
2509 "averaged electrostatic potential (Hartree potential) "// &
2510 "for symmetric slab systems", &
2518 name=
"_SECTION_PARAMETERS_", &
2519 description=
"Controls the activation of the planar averaged electrostatic "// &
2520 "potential (Hartree potential) section", &
2521 usage=
"&PLANAR_AVERAGED_V_HARTREE ON", &
2522 default_l_val=.false., &
2523 lone_keyword_l_val=.true.)
2527 CALL keyword_create(keyword, __location__, name=
"PARALLEL_PLANE", &
2528 enum_c_vals=
s2a(
'XY',
'YZ',
'XZ'), &
2529 enum_i_vals=[3, 1, 2], &
2530 description=
"The coordinate plane that the surface is parallel to.", &
2531 enum_desc=
s2a(
"Parallel to XY",
"Parallel to YZ",
"Parallel to XZ"), &
2534 usage=
"PARALLEL_PLANE XY")
2538 END SUBROUTINE create_paep_section
integer, parameter, public basis_sort_zet
integer, parameter, public basis_sort_default
collects all references to literature in CP2K as new algorithms / method are included from literature...
integer, save, public vandevondele2005b
integer, save, public blochl1995
integer, save, public guidon2010
integer, save, public bengtsson1999
integer, save, public kunert2003
integer, save, public yin2017
integer, save, public avezac2005
integer, save, public andreussi2012
integer, save, public iannuzzi2006
integer, save, public fattebert2002
integer, save, public andermatt2016
integer, save, public merlot2014
integer, save, public perdew1981
integer, save, public marek2025
integer, save, public brelaz1979
integer, save, public chai2024a
routines to handle the output, The idea is to remove the decision of wheter to output and what to out...
integer, parameter, public low_print_level
integer, parameter, public medium_print_level
integer, parameter, public high_print_level
integer, parameter, public add_last_numeric
integer, parameter, public silent_print_level
subroutine, public cp_print_key_section_create(print_key_section, location, name, description, print_level, each_iter_names, each_iter_values, add_last, filename, common_iter_levels, citations, unit_str)
creates a print_key section
utils to manipulate splines on the regular grid of a pw
integer, parameter, public pw_interp
integer, parameter, public spline3_nopbc_interp
integer, parameter, public spline3_pbc_interp
real(kind=dp) function, public cp_unit_to_cp2k(value, unit_str, defaults, power)
converts to the internal cp2k units to the given unit
Defines the basic variable types.
integer, parameter, public dp
Definition of physical constants:
real(kind=dp), parameter, public femtoseconds
real(kind=dp), parameter, public evolt
different utils that are useful to manipulate splines on the regular grid of a pw
integer, parameter, public precond_spl3_3
integer, parameter, public precond_spl3_aint
integer, parameter, public no_precond
integer, parameter, public precond_spl3_2
integer, parameter, public precond_spl3_aint2
integer, parameter, public precond_spl3_1
Utilities for string manipulations.