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MRSC2 no amplitudes

This commit is contained in:
Anthony Scemama 2017-01-11 15:04:00 +01:00
parent 8832b28ac9
commit 3979677a82
6 changed files with 231 additions and 0 deletions

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@ -67,3 +67,36 @@ END_PROVIDER
END_PROVIDER END_PROVIDER
BEGIN_PROVIDER [double precision, norm_psi_ref, (N_states)]
&BEGIN_PROVIDER [double precision, inv_norm_psi_ref, (N_states)]
implicit none
integer :: i,j
norm_psi_ref = 0.d0
do j = 1, N_states
do i = 1, N_det_ref
norm_psi_ref(j) += psi_ref_coef(i,j) * psi_ref_coef(i,j)
enddo
inv_norm_psi_ref(j) = 1.d0/(dsqrt(norm_psi_Ref(j)))
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, psi_ref_coef_interm_norm, (N_det_ref,N_states)]
implicit none
integer :: i,j
do j = 1, N_states
do i = 1, N_det_ref
psi_ref_coef_interm_norm(i,j) = inv_norm_psi_ref(j) * psi_ref_coef(i,j)
enddo
enddo
END_PROVIDER
BEGIN_PROVIDER [double precision, psi_non_ref_coef_interm_norm, (N_det_non_ref,N_states)]
implicit none
integer :: i,j
do j = 1, N_states
do i = 1, N_det_non_ref
psi_non_ref_coef_interm_norm(i,j) = psi_non_ref_coef(i,j) * inv_norm_psi_ref(j)
enddo
enddo
END_PROVIDER

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@ -0,0 +1 @@
Psiref_CAS Determinants Davidson

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@ -0,0 +1,12 @@
============
mrsc2_no_amp
============
Needed Modules
==============
.. Do not edit this section It was auto-generated
.. by the `update_README.py` script.
Documentation
=============
.. Do not edit this section It was auto-generated
.. by the `update_README.py` script.

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@ -0,0 +1,78 @@
BEGIN_PROVIDER [double precision, CI_eigenvectors_sc2_no_amp, (N_det,N_states_diag)]
&BEGIN_PROVIDER [double precision, CI_eigenvectors_s2_sc2_no_amp, (N_states_diag)]
&BEGIN_PROVIDER [double precision, CI_electronic_energy_sc2_no_amp, (N_states_diag)]
implicit none
integer :: i,j,k,l
integer, allocatable :: idx(:)
double precision, allocatable :: e_corr(:,:)
double precision, allocatable :: accu(:)
double precision, allocatable :: ihpsi_current(:)
double precision, allocatable :: H_jj(:),H_jj_total(:),S2_jj(:)
allocate(e_corr(N_det_non_ref,N_states),ihpsi_current(N_states),accu(N_states),H_jj(N_det_non_ref),idx(0:N_det_non_ref))
allocate(H_jj_total(N_det),S2_jj(N_det))
accu = 0.d0
do i = 1, N_det_non_ref
call i_h_psi(psi_non_ref(1,1,i), psi_ref, psi_ref_coef_interm_norm, N_int, N_det_ref,&
size(psi_ref_coef_interm_norm,1), N_states,ihpsi_current)
do j = 1, N_states
e_corr(i,j) = psi_non_ref_coef_interm_norm(i,j) * ihpsi_current(j)
accu(j) += e_corr(i,j)
enddo
enddo
double precision :: hjj,diag_h_mat_elem
do i = 1, N_det_non_ref
call filter_not_connected(psi_non_ref,psi_non_ref(1,1,i),N_int,N_det_non_ref,idx)
H_jj(i) = 0.d0
do j = 1, idx(0)
H_jj(i) += e_corr(idx(j),1)
enddo
enddo
do i=1,N_Det
H_jj_total(i) = diag_h_mat_elem(psi_det(1,1,i),N_int)
call get_s2(psi_det(1,1,i),psi_det(1,1,i),N_int,S2_jj(i))
enddo
do i=1, N_det_non_ref
H_jj_total(idx_non_ref(i)) += H_jj(i)
enddo
call davidson_diag_hjj_sjj(psi_det,CI_eigenvectors_sc2_no_amp,H_jj_total,S2_jj,CI_electronic_energy_sc2_no_amp,size(CI_eigenvectors_sc2_no_amp,1),N_Det,N_states,N_states_diag,N_int,6)
do i=1,N_states_diag
CI_eigenvectors_s2_sc2_no_amp(i) = S2_jj(i)
enddo
deallocate(e_corr,ihpsi_current,accu,H_jj,idx,H_jj_total,s2_jj)
END_PROVIDER
BEGIN_PROVIDER [ double precision, CI_energy_sc2_no_amp, (N_states_diag) ]
implicit none
BEGIN_DOC
! N_states lowest eigenvalues of the CI matrix
END_DOC
integer :: j
character*(8) :: st
call write_time(output_determinants)
do j=1,min(N_det,N_states_diag)
CI_energy_sc2_no_amp(j) = CI_electronic_energy_sc2_no_amp(j) + nuclear_repulsion
enddo
do j=1,min(N_det,N_states)
write(st,'(I4)') j
call write_double(output_determinants,CI_energy_sc2_no_amp(j),'Energy of state '//trim(st))
call write_double(output_determinants,CI_eigenvectors_s2_sc2_no_amp(j),'S^2 of state '//trim(st))
enddo
END_PROVIDER
subroutine diagonalize_CI_sc2_no_amp
implicit none
integer :: i,j
do j=1,N_states
do i=1,N_det
psi_coef(i,j) = CI_eigenvectors_sc2_no_amp(i,j)
enddo
enddo
SOFT_TOUCH ci_eigenvectors_s2_sc2_no_amp ci_eigenvectors_sc2_no_amp ci_electronic_energy_sc2_no_amp ci_energy_sc2_no_amp psi_coef
end

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@ -0,0 +1,9 @@
program pouet
implicit none
integer :: i
do i = 1, 10
call diagonalize_CI_sc2_no_amp
TOUCH psi_coef
enddo
end

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@ -1,4 +1,102 @@
subroutine filter_not_connected(key1,key2,Nint,sze,idx)
use bitmasks
implicit none
BEGIN_DOC
! Returns the array idx which contains the index of the
!
! determinants in the array key1 that DO NOT interact
!
! via the H operator with key2.
!
! idx(0) is the number of determinants that DO NOT interact with key1
END_DOC
integer, intent(in) :: Nint, sze
integer(bit_kind), intent(in) :: key1(Nint,2,sze)
integer(bit_kind), intent(in) :: key2(Nint,2)
integer, intent(out) :: idx(0:sze)
integer :: i,j,l
integer :: degree_x2
ASSERT (Nint > 0)
ASSERT (sze >= 0)
l=1
if (Nint==1) then
!DIR$ LOOP COUNT (1000)
do i=1,sze
degree_x2 = popcnt( xor( key1(1,1,i), key2(1,1))) &
+ popcnt( xor( key1(1,2,i), key2(1,2)))
if (degree_x2 > 4) then
idx(l) = i
l = l+1
else
cycle
endif
enddo
else if (Nint==2) then
!DIR$ LOOP COUNT (1000)
do i=1,sze
degree_x2 = popcnt(xor( key1(1,1,i), key2(1,1))) + &
popcnt(xor( key1(2,1,i), key2(2,1))) + &
popcnt(xor( key1(1,2,i), key2(1,2))) + &
popcnt(xor( key1(2,2,i), key2(2,2)))
if (degree_x2 > 4) then
idx(l) = i
l = l+1
else
cycle
endif
enddo
else if (Nint==3) then
!DIR$ LOOP COUNT (1000)
do i=1,sze
degree_x2 = popcnt(xor( key1(1,1,i), key2(1,1))) + &
popcnt(xor( key1(1,2,i), key2(1,2))) + &
popcnt(xor( key1(2,1,i), key2(2,1))) + &
popcnt(xor( key1(2,2,i), key2(2,2))) + &
popcnt(xor( key1(3,1,i), key2(3,1))) + &
popcnt(xor( key1(3,2,i), key2(3,2)))
if (degree_x2 > 4) then
idx(l) = i
l = l+1
else
cycle
endif
enddo
else
!DIR$ LOOP COUNT (1000)
do i=1,sze
degree_x2 = 0
!DEC$ LOOP COUNT MIN(4)
do j=1,Nint
degree_x2 = degree_x2+ popcnt(xor( key1(j,1,i), key2(j,1))) +&
popcnt(xor( key1(j,2,i), key2(j,2)))
if (degree_x2 > 4) then
idx(l) = i
l = l+1
endif
enddo
if (degree_x2 <= 5) then
exit
endif
enddo
endif
idx(0) = l-1
end
subroutine filter_connected(key1,key2,Nint,sze,idx) subroutine filter_connected(key1,key2,Nint,sze,idx)
use bitmasks use bitmasks
implicit none implicit none