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qp2/plugins/local/tc_bi_ortho/test_normal_order.irp.f

174 lines
4.7 KiB
Fortran

! ---
program test_normal_order
BEGIN_DOC
! TODO : Put the documentation of the program here
END_DOC
implicit none
print *, 'Hello world'
my_grid_becke = .True.
PROVIDE tc_grid1_a tc_grid1_r
my_n_pt_r_grid = tc_grid1_r
my_n_pt_a_grid = tc_grid1_a
touch my_grid_becke my_n_pt_r_grid my_n_pt_a_grid
read_wf = .True.
touch read_wf
call provide_all_three_ints_bi_ortho()
call test()
end
! ---
subroutine test
implicit none
use bitmasks ! you need to include the bitmasks_module.f90 features
integer :: h1,h2,p1,p2,s1,s2,i_ok,degree,Ne(2)
integer :: exc(0:2,2,2)
integer(bit_kind), allocatable :: det_i(:,:)
double precision :: hmono,htwoe,hthree,htilde_ij,accu,phase,normal,hthree_tmp
integer, allocatable :: occ(:,:)
allocate( occ(N_int*bit_kind_size,2) )
call bitstring_to_list_ab(ref_bitmask, occ, Ne, N_int)
allocate(det_i(N_int,2))
s1 = 1
s2 = 2
accu = 0.d0
do h1 = 1, elec_beta_num
do p1 = elec_alpha_num+1, mo_num
do h2 = 1, elec_beta_num
do p2 = elec_beta_num+1, mo_num
hthree = 0.d0
det_i = ref_bitmask
s1 = 1
s2 = 2
call do_single_excitation(det_i,h1,p1,s1,i_ok)
if(i_ok.ne.1)cycle
call do_single_excitation(det_i,h2,p2,s2,i_ok)
if(i_ok.ne.1)cycle
call htilde_mu_mat_bi_ortho_slow(det_i,HF_bitmask,N_int,hmono,htwoe,hthree_tmp,htilde_ij)
call get_excitation_degree(ref_bitmask,det_i,degree,N_int)
call get_excitation(ref_bitmask,det_i,exc,degree,phase,N_int)
hthree_tmp *= phase
hthree += 0.5d0 * hthree_tmp
det_i = ref_bitmask
s1 = 2
s2 = 1
call do_single_excitation(det_i,h1,p1,s1,i_ok)
if(i_ok.ne.1)cycle
call do_single_excitation(det_i,h2,p2,s2,i_ok)
if(i_ok.ne.1)cycle
call htilde_mu_mat_bi_ortho_slow(det_i,HF_bitmask,N_int,hmono,htwoe,hthree_tmp,htilde_ij)
call get_excitation_degree(ref_bitmask,det_i,degree,N_int)
call get_excitation(ref_bitmask,det_i,exc,degree,phase,N_int)
hthree_tmp *= phase
hthree += 0.5d0 * hthree_tmp
! normal = normal_two_body_bi_orth_ab(p2,h2,p1,h1)
call give_aba_contraction(N_int, h1, h2, p1, p2, Ne, occ, normal)
if(dabs(hthree).lt.1.d-10)cycle
if(dabs(hthree-normal).gt.1.d-10)then
! print*,pp2,pp1,hh2,hh1
print*,p2,p1,h2,h1
print*,hthree,normal,dabs(hthree-normal)
stop
endif
! call three_comp_two_e_elem(det_i,h1,h2,p1,p2,s1,s2,normal)
! normal = eff_2_e_from_3_e_ab(p2,p1,h2,h1)
accu += dabs(hthree-normal)
enddo
enddo
enddo
enddo
print*,'accu opposite spin = ',accu
stop
! p2=6
! p1=5
! h2=2
! h1=1
s1 = 1
s2 = 1
accu = 0.d0
do h1 = 1, elec_alpha_num
do p1 = elec_alpha_num+1, mo_num
do p2 = p1+1, mo_num
do h2 = h1+1, elec_alpha_num
det_i = ref_bitmask
call do_single_excitation(det_i,h1,p1,s1,i_ok)
if(i_ok.ne.1)cycle
call do_single_excitation(det_i,h2,p2,s2,i_ok)
if(i_ok.ne.1)cycle
call htilde_mu_mat_bi_ortho_slow(det_i,ref_bitmask,N_int,hmono,htwoe,hthree,htilde_ij)
call get_excitation_degree(ref_bitmask,det_i,degree,N_int)
call get_excitation(ref_bitmask,det_i,exc,degree,phase,N_int)
integer :: hh1, pp1, hh2, pp2, ss1, ss2
call decode_exc(exc, 2, hh1, pp1, hh2, pp2, ss1, ss2)
hthree *= phase
normal = normal_two_body_bi_orth_aa_bb(p2,h2,p1,h1)
! normal = eff_2_e_from_3_e_aa(p2,p1,h2,h1)
if(dabs(hthree).lt.1.d-10)cycle
if(dabs(hthree-normal).gt.1.d-10)then
print*,pp2,pp1,hh2,hh1
print*,p2,p1,h2,h1
print*,hthree,normal,dabs(hthree-normal)
stop
endif
! print*,hthree,normal,dabs(hthree-normal)
accu += dabs(hthree-normal)
enddo
enddo
enddo
enddo
print*,'accu same spin alpha = ',accu
s1 = 2
s2 = 2
accu = 0.d0
do h1 = 1, elec_beta_num
do p1 = elec_beta_num+1, mo_num
do p2 = p1+1, mo_num
do h2 = h1+1, elec_beta_num
det_i = ref_bitmask
call do_single_excitation(det_i,h1,p1,s1,i_ok)
if(i_ok.ne.1)cycle
call do_single_excitation(det_i,h2,p2,s2,i_ok)
if(i_ok.ne.1)cycle
call htilde_mu_mat_bi_ortho_slow(det_i,ref_bitmask,N_int,hmono,htwoe,hthree,htilde_ij)
call get_excitation_degree(ref_bitmask,det_i,degree,N_int)
call get_excitation(ref_bitmask,det_i,exc,degree,phase,N_int)
call decode_exc(exc, 2, hh1, pp1, hh2, pp2, ss1, ss2)
hthree *= phase
! normal = normal_two_body_bi_orth_aa_bb(p2,h2,p1,h1)
normal = eff_2_e_from_3_e_bb(p2,p1,h2,h1)
if(dabs(hthree).lt.1.d-10)cycle
if(dabs(hthree-normal).gt.1.d-10)then
print*,pp2,pp1,hh2,hh1
print*,p2,p1,h2,h1
print*,hthree,normal,dabs(hthree-normal)
stop
endif
! print*,hthree,normal,dabs(hthree-normal)
accu += dabs(hthree-normal)
enddo
enddo
enddo
enddo
print*,'accu same spin beta = ',accu
end