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Accelerated vectorized RR

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This commit is contained in:
Anthony Scemama 2018-02-12 00:05:33 +01:00
parent 264181ebd1
commit cf075946e8
1 changed files with 46 additions and 23 deletions
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33
Basis/TwoElectronRRVectorized.ml
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@ -458,11 +458,7 @@ let hvrr_two_e_vector (angMom_a, angMom_b, angMom_c, angMom_d)
hrr_v angMom_a angMom_b angMom_c dm totAngMom_a totAngMom_b totAngMom_c (totAngMom_d-1)
in h1 +. f *. h2
in
hrr_v
(angMom_a.(0),angMom_a.(1),angMom_a.(2))
(angMom_b.(0),angMom_b.(1),angMom_b.(2))
(angMom_c.(0),angMom_c.(1),angMom_c.(2))
(angMom_d.(0),angMom_d.(1),angMom_d.(2))
hrr_v angMom_a angMom_b angMom_c angMom_d
totAngMom_a totAngMom_b totAngMom_c totAngMom_d
@ -497,6 +493,11 @@ let contracted_class_shell_pairs ~zero_m ?schwartz_p ?schwartz_q shell_p shell_q
Array.make (Array.length class_indices) 0.;
in
let monocentric =
shell_p.ContractedShellPair.monocentric &&
shell_q.ContractedShellPair.monocentric
in
(** Screening on the product of coefficients *)
let coef_max_p =
Array.fold_left (fun accu x ->
@ -671,6 +672,26 @@ let contracted_class_shell_pairs ~zero_m ?schwartz_p ?schwartz_q shell_p shell_q
in
(* Compute the integral class from the primitive shell quartet *)
Array.iteri (fun i key ->
let (angMomA,angMomB,angMomC,angMomD) =
match Zkey.to_int_tuple ~kind:Zkey.Kind_12 key with
| Zkey.Twelve x -> x
| _ -> assert false
in
try
if monocentric then
begin
let ax,ay,az = angMomA
and bx,by,bz = angMomB
and cx,cy,cz = angMomC
and dx,dy,dz = angMomD
in
if ( ((1 land ax+bx+cx+dx)=1) ||
((1 land ay+by+cy+dy)=1) ||
((1 land az+bz+cz+dz)=1)
) then
raise NullQuartet
end;
(*
let a = Zkey.to_int_array Zkey.Kind_12 key in
let (angMomA,angMomB,angMomC,angMomD) =
( [| a.(0) ; a.(1) ; a.(2) |],
@ -678,6 +699,7 @@ let contracted_class_shell_pairs ~zero_m ?schwartz_p ?schwartz_q shell_p shell_q
[| a.(6) ; a.(7) ; a.(8) |],
[| a.(9) ; a.(10) ; a.(11) |] )
in
*)
let integral =
hvrr_two_e_vector (angMomA, angMomB, angMomC, angMomD)
(Contracted_shell.totAngMom shell_a, Contracted_shell.totAngMom shell_b,
@ -690,6 +712,7 @@ let contracted_class_shell_pairs ~zero_m ?schwartz_p ?schwartz_q shell_p shell_q
map_1d map_2d np nq
in
contracted_class.(i) <- contracted_class.(i) +. integral *. norm.(i)
with NullQuartet -> ()
) class_indices
end;