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quantum_package/src/Dets/spindeterminants.irp.f

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subroutine write_spindeterminants
use bitmasks
implicit none
integer*8, allocatable :: tmpdet(:,:)
integer :: N_int2
integer :: i,j,k
integer*8 :: det_8(100)
integer(bit_kind) :: det_bk((100*8)/bit_kind)
equivalence (det_8, det_bk)
N_int2 = (N_int*bit_kind)/8
call ezfio_set_spindeterminants_n_det_alpha(N_det_alpha_unique)
call ezfio_set_spindeterminants_n_det_beta(N_det_beta_unique)
call ezfio_set_spindeterminants_n_int(N_int)
call ezfio_set_spindeterminants_bit_kind(bit_kind)
call ezfio_set_spindeterminants_n_states(N_states)
allocate(tmpdet(N_int2,N_det_alpha_unique))
do i=1,N_det_alpha_unique
do k=1,N_int
det_bk(k) = psi_det_alpha_unique(k,i)
enddo
do k=1,N_int2
tmpdet(k,i) = det_8(k)
enddo
enddo
call ezfio_set_spindeterminants_psi_det_alpha(psi_det_alpha_unique)
deallocate(tmpdet)
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allocate(tmpdet(N_int2,N_det_beta_unique))
do i=1,N_det_beta_unique
do k=1,N_int
det_bk(k) = psi_det_beta_unique(k,i)
enddo
do k=1,N_int2
tmpdet(k,i) = det_8(k)
enddo
enddo
call ezfio_set_spindeterminants_psi_det_beta(psi_det_beta_unique)
deallocate(tmpdet)
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call ezfio_set_spindeterminants_psi_coef_matrix(psi_svd_matrix)
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integer :: n_svd_coefs
double precision :: norm, f
f = 1.d0/dble(N_states)
norm = 1.d0
do n_svd_coefs=1,N_det_alpha_unique
do k=1,N_states
norm -= psi_svd_coefs(n_svd_coefs,k)*psi_svd_coefs(n_svd_coefs,k)
enddo
if (norm < 1.d-6) then
exit
endif
enddo
n_svd_coefs -= 1
call ezfio_set_spindeterminants_n_svd_coefs(n_svd_coefs)
double precision, allocatable :: dtmp(:,:,:)
allocate(dtmp(N_det_alpha_unique,n_svd_coefs,N_states))
do k=1,N_states
do j=1,n_svd_coefs
do i=1,N_det_alpha_unique
dtmp(i,j,k) = psi_svd_alpha(i,j,k)
enddo
enddo
enddo
call ezfio_set_spindeterminants_psi_svd_alpha(dtmp)
deallocate(dtmp)
allocate(dtmp(N_det_beta_unique,n_svd_coefs,N_states))
do k=1,N_states
do j=1,n_svd_coefs
do i=1,N_det_beta_unique
dtmp(i,j,k) = psi_svd_beta(i,j,k)
enddo
enddo
enddo
call ezfio_set_spindeterminants_psi_svd_beta(dtmp)
deallocate(dtmp)
allocate(dtmp(n_svd_coefs,N_states,1))
do k=1,N_states
do j=1,n_svd_coefs
dtmp(j,k,1) = psi_svd_coefs(j,k)
enddo
enddo
call ezfio_set_spindeterminants_psi_svd_coefs(dtmp)
deallocate(dtmp)
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end