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quantum_package/plugins/Full_CI_ZMQ/fci_zmq.irp.f

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5.8 KiB
Fortran
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program fci_zmq
implicit none
integer :: i,k
double precision, allocatable :: pt2(:), norm_pert(:), H_pert_diag(:)
integer :: N_st, degree
N_st = N_states
allocate (pt2(N_st), norm_pert(N_st),H_pert_diag(N_st))
character*(64) :: perturbation
pt2 = 1.d0
diag_algorithm = "Lapack"
if (N_det > N_det_max) then
call diagonalize_CI
call save_wavefunction
psi_det = psi_det_sorted
psi_coef = psi_coef_sorted
N_det = N_det_max
soft_touch N_det psi_det psi_coef
call diagonalize_CI
call save_wavefunction
print *, 'N_det = ', N_det
print *, 'N_states = ', N_states
print *, 'PT2 = ', pt2
print *, 'E = ', CI_energy
print *, 'E+PT2 = ', CI_energy+pt2
print *, '-----'
endif
double precision :: i_H_psi_array(N_states),diag_H_mat_elem,h,i_O1_psi_array(N_states)
double precision :: E_CI_before(N_states)
provide selection_criterion
if(read_wf)then
call i_H_psi(psi_det(1,1,N_det),psi_det,psi_coef,N_int,N_det,psi_det_size,N_states,i_H_psi_array)
h = diag_H_mat_elem(psi_det(1,1,N_det),N_int)
selection_criterion = dabs(psi_coef(N_det,1) * (i_H_psi_array(1) - h * psi_coef(N_det,1))) * 0.1d0
soft_touch selection_criterion
endif
integer :: n_det_before
print*,'Beginning the selection ...'
E_CI_before = CI_energy
do while (N_det < N_det_max.and.maxval(abs(pt2(1:N_st))) > pt2_max)
!selection_criterion = 1d-7
print *, selection_criterion, "+++++++++++++++++++++++++++++++++++++++", N_det
n_det_before = N_det
! call H_apply_FCI(pt2, norm_pert, H_pert_diag, N_st)
call ZMQ_selection()
PROVIDE psi_coef
PROVIDE psi_det
PROVIDE psi_det_sorted
if (N_det > N_det_max) then
psi_det = psi_det_sorted
psi_coef = psi_coef_sorted
N_det = N_det_max
soft_touch N_det psi_det psi_coef
endif
call diagonalize_CI
call save_wavefunction
if(n_det_before == N_det)then
selection_criterion = selection_criterion * 0.1d0
endif
print *, 'N_det = ', N_det
print *, 'N_states = ', N_states
do k = 1, N_states
print*,'State ',k
print *, 'PT2 = ', pt2(k)
print *, 'E = ', CI_energy(k)
print *, 'E(before)+PT2 = ', E_CI_before(k)+pt2(k)
enddo
print *, '-----'
E_CI_before = CI_energy
if(N_states.gt.1)then
print*,'Variational Energy difference'
do i = 2, N_states
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_states
print*,'Delta E = ',E_CI_before(i)+ pt2(i) - (E_CI_before(1) + pt2(1))
enddo
endif
E_CI_before = CI_energy
call ezfio_set_full_ci_energy(CI_energy)
enddo
N_det = min(N_det_max,N_det)
touch N_det psi_det psi_coef
call diagonalize_CI
! if(do_pt2_end)then
! print*,'Last iteration only to compute the PT2'
! threshold_selectors = 1.d0
! threshold_generators = 0.999d0
! call H_apply_FCI_PT2(pt2, norm_pert, H_pert_diag, N_st)
!
! print *, 'Final step'
! print *, 'N_det = ', N_det
! print *, 'N_states = ', N_states
! print *, 'PT2 = ', pt2
! print *, 'E = ', CI_energy
! print *, 'E+PT2 = ', CI_energy+pt2
! print *, '-----'
! call ezfio_set_full_ci_energy_pt2(CI_energy+pt2)
! endif
call save_wavefunction
end
subroutine ZMQ_selection()
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use f77_zmq
implicit none
BEGIN_DOC
! Massively parallel Full-CI
END_DOC
integer :: i,ithread
integer(ZMQ_PTR) :: zmq_socket_push
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integer(ZMQ_PTR), external :: new_zmq_push_socket
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zmq_context = f77_zmq_ctx_new ()
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PROVIDE H_apply_buffer_allocated
PROVIDE ci_electronic_energy
PROVIDE nproc
!$OMP PARALLEL PRIVATE(i,ithread,zmq_socket_push) num_threads(nproc+1)
ithread = omp_get_thread_num()
if (ithread == 0) then
call receive_selected_determinants()
else
zmq_socket_push = new_zmq_push_socket(1)
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do i=ithread,N_det_generators,nproc
print *, i, "/", N_det_generators
call select_connected(i, max(100, N_det), ci_electronic_energy,zmq_socket_push)
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enddo
if (ithread == 1) then
integer :: rc
rc = f77_zmq_send(zmq_socket_push,0,1,0)
if (rc /= 1) then
stop 'Error sending termination signal'
endif
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endif
call end_zmq_push_socket(zmq_socket_push, 1)
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endif
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!$OMP END PARALLEL
call copy_H_apply_buffer_to_wf()
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end
! program Full_CI_ZMQ
! use f77_zmq
! implicit none
! BEGIN_DOC
! ! Massively parallel Full-CI
! END_DOC
!
! integer :: i,ithread
!
! integer(ZMQ_PTR) :: zmq_socket_push
! integer(ZMQ_PTR), external :: new_zmq_push_socket
! zmq_context = f77_zmq_ctx_new ()
! PROVIDE H_apply_buffer_allocated
!
! do while (N_det < N_det_max)
!
! PROVIDE ci_electronic_energy
! PROVIDE nproc
! !$OMP PARALLEL PRIVATE(i,ithread,zmq_socket_push) num_threads(nproc+1)
! ithread = omp_get_thread_num()
! if (ithread == 0) then
! call receive_selected_determinants()
! else
! zmq_socket_push = new_zmq_push_socket(0)
!
! do i=ithread,N_det_generators,nproc
! print *, i , "/", N_det_generators
! call select_connected(i, 1.d-7, ci_electronic_energy,zmq_socket_push)
! enddo
! print *, "END .... "
!
! if (ithread == 1) then
! integer :: rc
! rc = f77_zmq_send(zmq_socket_push,0,1,0)
! if (rc /= 1) then
! stop 'Error sending termination signal'
! endif
! endif
! call end_zmq_push_socket(zmq_socket_push, 0)
! endif
! !$OMP END PARALLEL
! call copy_H_apply_buffer_to_wf()
! call diagonalize_CI()
! call save_wavefunction()
! end do
!
! end