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mirror of https://gitlab.com/scemama/QCaml.git synced 2024-12-22 04:13:33 +01:00

Fixed 4-idx

This commit is contained in:
Anthony Scemama 2018-08-05 00:31:48 +02:00
parent 34a18bc529
commit 883e369b4e
3 changed files with 70 additions and 45 deletions

View File

@ -1,5 +1,6 @@
open Lacaml.D
open Util
open Constants
(** One-electron orthogonal basis set, corresponding to Molecular Orbitals. *)
@ -33,8 +34,7 @@ type t =
let mo_matrix_of_ao_matrix ~mo_coef ao_matrix =
gemm ~transa:`T mo_coef @@
gemm ao_matrix mo_coef
xt_o_x ~x:mo_coef ~o:ao_matrix
let ao_matrix_of_mo_matrix ~mo_coef ~ao_overlap mo_matrix =
@ -56,14 +56,10 @@ let four_index_transform ~mo_coef eri_ao =
let range_mo = list_range ~start:1 mo_num in
let range_ao = list_range ~start:1 ao_num in
let u =
Mat.create mo_num_2 mo_num
and o =
Mat.create ao_num ao_num_2
and p =
Mat.create ao_num_2 mo_num
and q =
Mat.create ao_mo_num mo_num
let u = Mat.create mo_num_2 mo_num
and o = Mat.create ao_num ao_num_2
and p = Mat.create ao_num_2 mo_num
and q = Mat.create ao_mo_num mo_num
in
Printf.eprintf "Transforming %d integrals : %!" mo_num;
List.iter (fun delta ->
@ -71,39 +67,40 @@ let four_index_transform ~mo_coef eri_ao =
Mat.fill u 0.;
List.iter (fun l ->
if abs_float mo_coef.{l,delta} > epsilon then
begin
let jk = ref 0 in
List.iter (fun k ->
List.iter (fun j ->
incr jk;
ERI.get_chem_all_i eri_ao ~j ~k ~l
|> Array.iteri (fun i x -> o.{i+1,!jk} <- x)
) range_ao
) range_ao;
(* o_i_jk *)
let jk = ref 0 in
List.iter (fun k ->
List.iter (fun j ->
incr jk;
ERI.get_chem_all_i eri_ao ~j ~k ~l
|> Array.iteri (fun i x -> o.{i+1,!jk} <- x)
) range_ao
) range_ao;
(* o_i_jk *)
let p =
gemm ~transa:`T ~c:p o mo_coef
(* p_jk_alpha = \sum_i o_i_jk c_i_alpha *)
in
let p' =
Bigarray.reshape_2 (Bigarray.genarray_of_array2 p) ao_num ao_mo_num
(* p_j_kalpha *)
in
let p =
gemm ~transa:`T ~c:p o mo_coef
(* p_jk_alpha = \sum_i o_i_jk c_i_alpha *)
in
let p' =
Bigarray.reshape_2 (Bigarray.genarray_of_array2 p) ao_num ao_mo_num
(* p_j_kalpha *)
in
let q =
gemm ~transa:`T ~c:q p' mo_coef
(* q_kalpha_beta = \sum_j p_j_kalpha c_j_beta *)
in
let q' =
Bigarray.reshape_2 (Bigarray.genarray_of_array2 q) ao_num mo_num_2
(* q_k_alphabeta = \sum_j p_j_kalpha c_j_beta *)
in
ignore @@
gemm ~transa:`T ~beta:1. ~c:u q' mo_coef
(* u_alphabeta_gamma = \sum_k q_k_alphabeta c_k_gamma *)
let q =
gemm ~transa:`T ~c:q p' mo_coef
(* q_kalpha_beta = \sum_j p_j_kalpha c_j_beta *)
in
let q' =
Bigarray.reshape_2 (Bigarray.genarray_of_array2 q) ao_num mo_num_2
(* q_k_alphabeta = \sum_j p_j_kalpha c_j_beta *)
in
ignore @@
gemm ~transa:`T ~beta:1. ~alpha:mo_coef.{l,delta} ~c:u q' mo_coef ;
(* u_alphabeta_gamma = \sum_k q_k_alphabeta c_k_gamma *)
end
) range_ao;
let u =
Bigarray.reshape
@ -119,7 +116,7 @@ let four_index_transform ~mo_coef eri_ao =
ERI.set_chem eri_mo alpha beta gamma delta x
) (list_range ~start:1 beta)
) range_mo
) (list_range ~start:1 delta)
) (list_range ~start:1 delta)
) range_mo;
Printf.eprintf "\n%!";
@ -172,7 +169,35 @@ let of_rhf ~frozen_core hf =
|> Vec.of_array
in
let mo_coef = hf.HF.eigenvectors in
make ~ao_basis ~mo_type ~mo_class ~mo_occupation ~mo_coef ()
let result =
make ~ao_basis ~mo_type ~mo_class ~mo_occupation ~mo_coef ()
in
let () =
let e = ref 0. in
let t = KinInt.matrix (Lazy.force result.kin_ints) in
let v = NucInt.matrix (Lazy.force result.eN_ints) in
let g = Lazy.force result.ee_ints in
for i = 1 to 5 do
e := !e +. 2. *. (t.{i,i} +. v.{i,i})
done;
Printf.printf "Energy Mono = %20.15f\n" !e;
let e2 = ref 0. in
for i = 1 to 5 do
for j = i+1 to 5 do
e2 := !e2 +. 2. *. (ERI.get_phys g i j i j -.
ERI.get_phys g i j j i)
done;
done;
for i = 1 to 5 do
for j = 1 to 5 do
e2 := !e2 +. ERI.get_phys g i j i j
done;
done;
Printf.printf "Energy bi = %20.15f\n" !e2;
Printf.printf "Energy = %20.15f\n" (simulation.Si.nuclear_repulsion +. !e +. !e2)
in
result
let of_hartree_fock ~frozen_core = function

View File

@ -172,7 +172,7 @@ let list_some l =
let stream_range ?(start=0) n =
Stream.from (fun i ->
let result = i+start in
if result < n then
if result <= n then
Some result
else None
)

View File

@ -64,11 +64,11 @@ val list_some : 'a option list -> 'a list
the [Some]. *)
val list_range : ?start:int -> int -> int list
(** Returns a list [start ; start+1 ; ... ; start+(n-1)]. Default is [start=0]. *)
(** Returns a list [start ; start+1 ; ... ; start+n]. Default is [start=0]. *)
(** {2 Useful streams} *)
val stream_range : ?start:int -> int -> int Stream.t
(** Returns a stream <start ; start+1 ; ... ; start+(n-1)>. Default is [start=0]. *)
(** Returns a stream <start ; start+1 ; ... ; start+n>. Default is [start=0]. *)
(** {2 Linear algebra } *)