LCPQ/quantum_package
10
0
Fork 0
mirror of https://github.com/LCPQ/quantum_package synced 2024-06-20 04:02:16 +02:00
Code Issues Releases Wiki Activity

Merge pull request #142 from eginer/master

Browse Source 
added the All_singles module
This commit is contained in:
Emmanuel Giner 2016-02-16 11:38:20 +01:00
commit 23c90a2572
7 changed files with 227 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
plugins/All_singles/NEEDED_CHILDREN_MODULES Normal file
View File

@ -0,0 +1 @@
Generators_restart Perturbation Properties Selectors_no_sorted Utils

12
plugins/All_singles/README.rst Normal file
View File

@ -0,0 +1,12 @@
===========
All_singles
===========
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.

75
plugins/All_singles/all_1h_1p.irp.f Normal file
View File

@ -0,0 +1,75 @@
program restart_more_singles
BEGIN_DOC
! Generates and select single and double excitations of type 1h-1p
! on the top of a given restart wave function of type CAS
END_DOC
read_wf = .true.
touch read_wf
print*,'ref_bitmask_energy = ',ref_bitmask_energy
call routine
end
subroutine routine
implicit none
integer :: i,k
double precision, allocatable :: pt2(:), norm_pert(:), H_pert_diag(:),E_before(:)
integer :: N_st, degree
integer :: n_det_before
N_st = N_states
allocate (pt2(N_st), norm_pert(N_st),H_pert_diag(N_st),E_before(N_st))
i = 0
print*,'N_det = ',N_det
print*,'n_det_max = ',n_det_max
print*,'pt2_max = ',pt2_max
pt2=-1.d0
E_before = ref_bitmask_energy
do while (N_det < n_det_max.and.maxval(abs(pt2(1:N_st))) > pt2_max)
n_det_before = N_det
i += 1
print*,'-----------------------'
print*,'i = ',i
call H_apply_just_1h_1p(pt2, norm_pert, H_pert_diag, N_st)
call diagonalize_CI
print*,'N_det = ',N_det
print*,'E = ',CI_energy(1)
print*,'pt2 = ',pt2(1)
print*,'E+PT2 = ',E_before + pt2(1)
E_before = CI_energy
if(N_states_diag.gt.1)then
print*,'Variational Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i) - CI_energy(1)
enddo
endif
if(N_states.gt.1)then
print*,'Variational + perturbative Energy difference'
do i = 2, N_st
print*,'Delta E = ',E_before(i)+ pt2(i) - (E_before(1) + pt2(1))
enddo
endif
call save_wavefunction
if(n_det_before == N_det)then
selection_criterion = selection_criterion * 0.5d0
endif
enddo
threshold_davidson = 1.d-10
soft_touch threshold_davidson davidson_criterion
call diagonalize_CI
if(N_states_diag.gt.1)then
print*,'Variational Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i) - CI_energy(1)
enddo
endif
if(N_states.gt.1)then
print*,'Variational + perturbative Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i)+ pt2(i) - (CI_energy(1) + pt2(1))
enddo
endif
call save_wavefunction
deallocate(pt2,norm_pert)
end

76
plugins/All_singles/all_singles.irp.f Normal file
View File

@ -0,0 +1,76 @@
program restart_more_singles
BEGIN_DOC
! Generates and select single excitations
! on the top of a given restart wave function
END_DOC
read_wf = .true.
touch read_wf
call routine
end
subroutine routine
implicit none
integer :: i,k
double precision, allocatable :: pt2(:), norm_pert(:), H_pert_diag(:)
integer :: N_st, degree
double precision,allocatable :: E_before(:)
integer :: n_det_before
N_st = N_states
allocate (pt2(N_st), norm_pert(N_st),H_pert_diag(N_st),E_before(N_st))
i = 0
print*,'N_det = ',N_det
print*,'n_det_max = ',n_det_max
print*,'pt2_max = ',pt2_max
pt2=-1.d0
E_before = ref_bitmask_energy
pt2_max = 1.d-10
n_det_max = 200000
do while (N_det < n_det_max.and.maxval(abs(pt2(1:N_st))) > pt2_max)
n_det_before = N_det
i += 1
print*,'-----------------------'
print*,'i = ',i
call H_apply_just_mono(pt2, norm_pert, H_pert_diag, N_st)
call diagonalize_CI
print*,'N_det = ',N_det
print*,'E = ',CI_energy
print*,'pt2 = ',pt2
print*,'E+PT2 = ',E_before + pt2
if(N_states_diag.gt.1)then
print*,'Variational Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i) - CI_energy(1)
enddo
endif
if(N_states.gt.1)then
print*,'Variational + perturbative Energy difference'
do i = 2, N_st
print*,'Delta E = ',E_before(i)+ pt2(i) - (E_before(1) + pt2(1))
enddo
endif
E_before = CI_energy
call save_wavefunction
if(n_det_before == N_det)then
selection_criterion = selection_criterion * 0.5d0
endif
enddo
threshold_davidson = 1.d-10
soft_touch threshold_davidson davidson_criterion
call diagonalize_CI
if(N_states_diag.gt.1)then
print*,'Variational Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i) - CI_energy(1)
enddo
endif
if(N_states.gt.1)then
print*,'Variational + perturbative Energy difference'
do i = 2, N_st
print*,'Delta E = ',CI_energy(i)+ pt2(i) - (CI_energy(1) + pt2(1))
enddo
endif
call save_wavefunction
deallocate(pt2,norm_pert,E_before)
end

14
scripts/generate_h_apply.py
View File

@ -24,6 +24,8 @@ skip
init_main
filter_integrals
filter2h2p
filter_only_1h1p_single
filter_only_1h1p_double
filterhole
filterparticle
do_double_excitations
@ -150,6 +152,18 @@ class H_apply(object):
self["filterparticle"] = """
if(iand(ibset(0_bit_kind,j_a),hole(k_a,other_spin)).eq.0_bit_kind )cycle
"""
def filter_only_1h1p(self):
self["filter_only_1h1p_single"] = """
! ! DIR$ FORCEINLINE
if (is_a_1h1p(hole).eq..False.) cycle
"""
self["filter_only_1h1p_double"] = """
! ! DIR$ FORCEINLINE
if (is_a_1h1p(key).eq..False.) cycle
"""
def unset_skip(self):
self["skip"] = """
"""

44
src/Bitmask/bitmask_cas_routines.irp.f
View File

@ -445,3 +445,47 @@ integer function number_of_particles_verbose(key_in)
+ popcnt( iand( iand( xor(key_in(1,2),iand(key_in(1,2),cas_bitmask(1,2,1))), virt_bitmask(1,2) ), virt_bitmask(1,2)) )
end
logical function is_a_1h1p(key_in)
implicit none
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer :: number_of_particles, number_of_holes
is_a_1h1p = .False.
if(number_of_holes(key_in).eq.1 .and. number_of_particles(key_in).eq.1)then
is_a_1h1p = .True.
endif
end
logical function is_a_1h(key_in)
implicit none
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer :: number_of_particles, number_of_holes
is_a_1h = .False.
if(number_of_holes(key_in).eq.1 .and. number_of_particles(key_in).eq.0)then
is_a_1h = .True.
endif
end
logical function is_a_1p(key_in)
implicit none
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer :: number_of_particles, number_of_holes
is_a_1p = .False.
if(number_of_holes(key_in).eq.0 .and. number_of_particles(key_in).eq.1)then
is_a_1p = .True.
endif
end
logical function is_a_2p(key_in)
implicit none
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer :: number_of_particles, number_of_holes
is_a_2p = .False.
if(number_of_holes(key_in).eq.0 .and. number_of_particles(key_in).eq.2)then
is_a_2p = .True.
endif
end

5
src/Determinants/H_apply.template.f
View File

@ -165,6 +165,7 @@ subroutine $subroutine_diexcOrg(key_in,key_mask,hole_1,particl_1,hole_2, particl
endif
logical :: check_double_excitation
logical :: is_a_1h1p
logical :: b_cycle
check_double_excitation = .True.
iproc = iproc_in
@ -298,6 +299,7 @@ subroutine $subroutine_diexcOrg(key_in,key_mask,hole_1,particl_1,hole_2, particl
l = j_b-ishft(k-1,bit_kind_shift)-1
key(k,other_spin) = ibset(key(k,other_spin),l)
$filter2h2p
$filter_only_1h1p_double
key_idx += 1
do k=1,N_int
keys_out(k,1,key_idx) = key(k,1)
@ -348,6 +350,7 @@ subroutine $subroutine_diexcOrg(key_in,key_mask,hole_1,particl_1,hole_2, particl
l = j_b-ishft(k-1,bit_kind_shift)-1
key(k,ispin) = ibset(key(k,ispin),l)
$filter2h2p
$filter_only_1h1p_double
key_idx += 1
do k=1,N_int
keys_out(k,1,key_idx) = key(k,1)
@ -418,6 +421,7 @@ subroutine $subroutine_monoexc(key_in, hole_1,particl_1,fock_diag_tmp,i_generato
integer(bit_kind) :: key_mask(N_int, 2)
logical :: check_double_excitation
logical :: is_a_1h1p
key_mask(:,:) = 0_bit_kind
@ -490,6 +494,7 @@ subroutine $subroutine_monoexc(key_in, hole_1,particl_1,fock_diag_tmp,i_generato
$filterparticle
hole(k_a,ispin) = ibset(hole(k_a,ispin),l_a)
$filter2h2p
$filter_only_1h1p_single
key_idx += 1
do k=1,N_int
keys_out(k,1,key_idx) = hole(k,1)