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QuantumPackage/doc/_sources/modules/selectors_full.rst.txt
2019-01-25 14:17:34 +01:00

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.. _module_selectors_full:
.. program:: selectors_full
.. default-role:: option
==============
selectors_full
==============
All the determinants are possible selectors. Only the largest contributions are kept, where
a threshold is applied to the squared norm of the wave function, with the :option:`determinants
threshold_selectors` flag.
Providers
---------
.. c:var:: n_det_selectors
File : :file:`selectors_full/selectors.irp.f`
.. code:: fortran
integer :: n_det_selectors
For Single reference wave functions, the number of selectors is 1 : the
Hartree-Fock determinant
Needs:
.. hlist::
:columns: 3
* :c:data:`mpi_master`
* :c:data:`n_det`
* :c:data:`n_det_generators`
* :c:data:`output_wall_time_0`
* :c:data:`psi_det_sorted`
* :c:data:`threshold_selectors`
Needed by:
.. hlist::
:columns: 3
* :c:data:`coef_hf_selector`
* :c:data:`exc_degree_per_selectors`
* :c:data:`psi_selectors`
* :c:data:`psi_selectors_coef_transp`
* :c:data:`psi_selectors_diag_h_mat`
* :c:data:`pt2_f`
.. c:var:: psi_selectors
File : :file:`selectors_full/selectors.irp.f`
.. code:: fortran
integer(bit_kind), allocatable :: psi_selectors (N_int,2,psi_selectors_size)
double precision, allocatable :: psi_selectors_coef (psi_selectors_size,N_states)
Determinants on which we apply <i|H|psi> for perturbation.
Needs:
.. hlist::
:columns: 3
* :c:data:`n_det_selectors`
* :c:data:`n_int`
* :c:data:`n_states`
* :c:data:`psi_det_sorted`
* :c:data:`psi_selectors_size`
Needed by:
.. hlist::
:columns: 3
* :c:data:`coef_hf_selector`
* :c:data:`exc_degree_per_selectors`
* :c:data:`psi_selectors_coef_transp`
* :c:data:`psi_selectors_diag_h_mat`
.. c:var:: psi_selectors_coef
File : :file:`selectors_full/selectors.irp.f`
.. code:: fortran
integer(bit_kind), allocatable :: psi_selectors (N_int,2,psi_selectors_size)
double precision, allocatable :: psi_selectors_coef (psi_selectors_size,N_states)
Determinants on which we apply <i|H|psi> for perturbation.
Needs:
.. hlist::
:columns: 3
* :c:data:`n_det_selectors`
* :c:data:`n_int`
* :c:data:`n_states`
* :c:data:`psi_det_sorted`
* :c:data:`psi_selectors_size`
Needed by:
.. hlist::
:columns: 3
* :c:data:`coef_hf_selector`
* :c:data:`exc_degree_per_selectors`
* :c:data:`psi_selectors_coef_transp`
* :c:data:`psi_selectors_diag_h_mat`
.. c:var:: threshold_selectors
File : :file:`selectors_full/selectors.irp.f`
.. code:: fortran
double precision :: threshold_selectors
Thresholds on selectors (fraction of the square of the norm)
Needs:
.. hlist::
:columns: 3
* :c:data:`threshold_generators`
Needed by:
.. hlist::
:columns: 3
* :c:data:`n_det_selectors`