open Qputils;; open Qptypes;; open Core.Std;; let spec = let open Command.Spec in empty +> flag "o" (optional string) ~doc:"file Name of the created EZFIO file." +> flag "b" (required string) ~doc:"string Name of basis set." +> flag "c" (optional_with_default 0 int) ~doc:"int Total charge of the molecule. Default is 0." +> flag "d" (optional_with_default 0. float) ~doc:"float Add dummy atoms. x * (covalent radii of the atoms)" +> flag "m" (optional_with_default 1 int) ~doc:"int Spin multiplicity (2S+1) of the molecule. Default is 1." +> flag "p" no_arg ~doc:" Using pseudopotentials" +> anon ("xyz_file" %: file ) let dummy_centers ~threshold ~molecule ~nuclei = let d = Molecule.distance_matrix molecule in let n = Array.length d in let nuclei = Array.of_list nuclei in let rec aux accu = function | (-1,_) -> accu | (i,-1) -> aux accu (i-1,i-1) | (i,j) when (i>j) -> let new_accu = let x,y = Element.covalent_radius (nuclei.(i)).Atom.element |> Positive_float.to_float, Element.covalent_radius (nuclei.(j)).Atom.element |> Positive_float.to_float in let r = ( x +. y ) *. threshold in if d.(i).(j) < r then (i,x,j,y,d.(i).(j)) :: accu else accu in aux new_accu (i,j-1) | (i,j) when (i=j) -> aux accu (i,j-1) | _ -> assert false in aux [] (n-1,n-1) |> List.map ~f:(fun (i,x,j,y,r) -> let f = x /. (x +. y) in let u = Point3d.of_tuple ~units:Units.Bohr ( nuclei.(i).Atom.coord.Point3d.x +. (nuclei.(j).Atom.coord.Point3d.x -. nuclei.(i).Atom.coord.Point3d.x) *. f, nuclei.(i).Atom.coord.Point3d.y +. (nuclei.(j).Atom.coord.Point3d.y -. nuclei.(i).Atom.coord.Point3d.y) *. f, nuclei.(i).Atom.coord.Point3d.z +. (nuclei.(j).Atom.coord.Point3d.z -. nuclei.(i).Atom.coord.Point3d.z) *. f) in Atom.{ element = Element.X ; charge = Charge.of_int 0 ; coord = u } ) let list_basis () = let basis_list = Qpackage.root ^ "/install/emsl/EMSL_api.py list_basis" |> Unix.open_process_in |> In_channel.input_lines |> List.map ~f:(fun x -> match String.split x ~on:'\'' with | [] -> "" | a :: [] | _ :: a :: _ -> String.strip a ) in List.sort basis_list ~cmp:String.ascending |> String.concat ~sep:"\t" let run ?o b c d m p xyz_file = (* Read molecule *) let molecule = (Molecule.of_xyz_file xyz_file ~charge:(Charge.of_int c) ~multiplicity:(Multiplicity.of_int m) ) in let dummy = dummy_centers ~threshold:d ~molecule ~nuclei:molecule.Molecule.nuclei in (* List.iter dummy ~f:(fun x -> Printf.printf "%s\n" (Atom.to_string ~units:Units.Angstrom x) ); *) let nuclei = molecule.Molecule.nuclei @ dummy in let basis_table = Hashtbl.Poly.create () in (* Open basis set channels *) let basis_channel element = let key = Element.to_string element in match Hashtbl.find basis_table key with | Some in_channel -> in_channel | None -> let msg = Printf.sprintf "%s is not defined in basis %s.%!" (Element.to_long_string element) b ; in failwith msg in let temp_filename = Filename.temp_file "qp_create_" ".basis" in let () = Sys.remove temp_filename in let fetch_channel basis = let command = Qpackage.root ^ "/scripts/get_basis.sh \"" ^ temp_filename ^ "." ^ basis ^ "\" \"" ^ basis ^"\"" in match Sys.is_file basis with | `Yes -> In_channel.create basis | _ -> begin let filename = Unix.open_process_in command |> In_channel.input_all |> String.strip in let new_channel = In_channel.create filename in Unix.unlink filename; new_channel end in let rec build_basis = function | [] -> () | elem_and_basis_name :: rest -> begin match (String.lsplit2 ~on:':' elem_and_basis_name) with | None -> (* Principal basis *) begin let basis = elem_and_basis_name in let new_channel = fetch_channel basis in List.iter nuclei ~f:(fun elem-> let key = Element.to_string elem.Atom.element in match Hashtbl.add basis_table ~key:key ~data:new_channel with | `Ok -> () | `Duplicate -> () ) end | Some (key, basis) -> (*Aux basis *) begin let elem = Element.of_string key and basis = String.lowercase basis in let key = Element.to_string elem in let new_channel = fetch_channel basis in begin match Hashtbl.add basis_table ~key:key ~data:new_channel with | `Ok -> () | `Duplicate -> failwith ("Duplicate definition of basis for "^(Element.to_long_string elem)) end end end; build_basis rest in String.split ~on:'|' b |> List.rev_map ~f:String.strip |> build_basis; (* Build EZFIO File name *) let ezfio_file = match o with | Some x -> x | None -> begin match String.rsplit2 ~on:'.' xyz_file with | Some (x,"xyz") -> x^".ezfio" | _ -> xyz_file^".ezfio" end in if Sys.file_exists_exn ezfio_file then failwith (ezfio_file^" already exists"); (* Create EZFIO *) Ezfio.set_file ezfio_file; (* Write Electrons *) Ezfio.set_electrons_elec_alpha_num ( Elec_alpha_number.to_int molecule.Molecule.elec_alpha ) ; Ezfio.set_electrons_elec_beta_num ( Elec_beta_number.to_int molecule.Molecule.elec_beta ) ; (* Write Nuclei *) let labels = List.map ~f:(fun x->Element.to_string x.Atom.element) nuclei and charges = List.map ~f:(fun x-> Atom.(Charge.to_float x.charge)) nuclei and coords = (List.map ~f:(fun x-> x.Atom.coord.Point3d.x) nuclei) @ (List.map ~f:(fun x-> x.Atom.coord.Point3d.y) nuclei) @ (List.map ~f:(fun x-> x.Atom.coord.Point3d.z) nuclei) in let nucl_num = (List.length labels) in Ezfio.set_nuclei_nucl_num nucl_num ; Ezfio.set_nuclei_nucl_label (Ezfio.ezfio_array_of_list ~rank:1 ~dim:[| nucl_num |] ~data:labels); Ezfio.set_nuclei_nucl_charge (Ezfio.ezfio_array_of_list ~rank:1 ~dim:[| nucl_num |] ~data:charges); Ezfio.set_nuclei_nucl_coord (Ezfio.ezfio_array_of_list ~rank:2 ~dim:[| nucl_num ; 3 |] ~data:coords); (* Write Basis set *) let basis = let nmax = Nucl_number.get_max () in let rec do_work (accu:(Atom.t*Nucl_number.t) list) (n:int) = function | [] -> accu | e::tail -> let new_accu = (e,(Nucl_number.of_int ~max:nmax n))::accu in do_work new_accu (n+1) tail in let result = do_work [] 1 nuclei |> List.rev |> List.map ~f:(fun (x,i) -> try let e = match x.Atom.element with | Element.X -> Element.H | e -> e in Basis.read_element (basis_channel x.Atom.element) i e with | End_of_file -> failwith ("Element "^(Element.to_string x.Atom.element)^" not found in basis set.") ) |> List.concat in (* close all in_channels *) result in let long_basis = Long_basis.of_basis basis in let ao_num = List.length long_basis in Ezfio.set_ao_basis_ao_num ao_num; Ezfio.set_ao_basis_ao_basis b; let ao_prim_num = List.map long_basis ~f:(fun (_,g,_) -> List.length g.Gto.lc) and ao_nucl = List.map long_basis ~f:(fun (_,_,n) -> Nucl_number.to_int n) and ao_power= let l = List.map long_basis ~f:(fun (x,_,_) -> x) in (List.map l ~f:(fun t -> Positive_int.to_int Symmetry.Xyz.(t.x)) )@ (List.map l ~f:(fun t -> Positive_int.to_int Symmetry.Xyz.(t.y)) )@ (List.map l ~f:(fun t -> Positive_int.to_int Symmetry.Xyz.(t.z)) ) in let ao_prim_num_max = List.fold ~init:0 ~f:(fun s x -> if x > s then x else s) ao_prim_num in let gtos = List.map long_basis ~f:(fun (_,x,_) -> x) in let create_expo_coef ec = let coefs = begin match ec with | `Coefs -> List.map gtos ~f:(fun x-> List.map x.Gto.lc ~f:(fun (_,coef) -> AO_coef.to_float coef) ) | `Expos -> List.map gtos ~f:(fun x-> List.map x.Gto.lc ~f:(fun (prim,_) -> AO_expo.to_float prim.Primitive.expo) ) end in let rec get_n n accu = function | [] -> List.rev accu | h::tail -> let y = begin match List.nth h n with | Some x -> x | None -> 0. end in get_n n (y::accu) tail in let rec build accu = function | n when n=ao_prim_num_max -> accu | n -> build ( accu @ (get_n n [] coefs) ) (n+1) in build [] 0 in let ao_coef = create_expo_coef `Coefs and ao_expo = create_expo_coef `Expos in Ezfio.set_ao_basis_ao_prim_num (Ezfio.ezfio_array_of_list ~rank:1 ~dim:[| ao_num |] ~data:ao_prim_num) ; Ezfio.set_ao_basis_ao_nucl(Ezfio.ezfio_array_of_list ~rank:1 ~dim:[| ao_num |] ~data:ao_nucl) ; Ezfio.set_ao_basis_ao_power(Ezfio.ezfio_array_of_list ~rank:2 ~dim:[| ao_num ; 3 |] ~data:ao_power) ; Ezfio.set_ao_basis_ao_coef(Ezfio.ezfio_array_of_list ~rank:2 ~dim:[| ao_num ; ao_prim_num_max |] ~data:ao_coef) ; Ezfio.set_ao_basis_ao_expo(Ezfio.ezfio_array_of_list ~rank:2 ~dim:[| ao_num ; ao_prim_num_max |] ~data:ao_expo) ; (* Doesn't work... *) if (p) then begin Qpackage.root ^ "/scripts/pseudo/put_pseudo_in_ezfio.py " ^ ezfio_file ^ " " ^ " BFD-Pseudo" |> Sys.command_exn end; match Input.Ao_basis.read () with | None -> failwith "Error in basis" | Some x -> Input.Ao_basis.write x let command = Command.basic ~summary: "Quantum Package command" ~readme:(fun () -> " === Available basis sets === " ^ (list_basis ()) ^ " ============================ Creates an EZFIO directory from a standard xyz file. The basis set is defined as a single string if all the atoms are taken from the same basis set, otherwise specific elements can be defined as follows: -b \"cc-pcvdz | H:cc-pvdz | C:6-31g\" If a file with the same name as the basis set exists, this file will be read. Otherwise, the basis set is obtained from the database. " ) spec (fun o b c d m p xyz_file () -> run ?o b c d m p xyz_file ) let () = Command.run command