quantum-espresso/CPV/modules.f90

233 lines
6.9 KiB
Fortran

!
! Copyright (C) 2002 CP90 group
! This file is distributed under the terms of the
! GNU General Public License. See the file `License'
! in the root directory of the present distribution,
! or http://www.gnu.org/copyleft/gpl.txt .
!
module bhs
! analytical BHS pseudopotential parameters
use parameters, only: nsx
implicit none
save
real(kind=8) :: rc1(nsx), rc2(nsx), wrc1(nsx), wrc2(nsx), &
rcl(3,nsx,3), al(3,nsx,3), bl(3,nsx,3)
integer :: lloc(nsx)
end module bhs
module core
implicit none
save
! nlcc_any = 0 no core correction on any atom
! rhocb = core charge in G space (box grid)
logical :: nlcc_any
real(kind=8), allocatable:: rhocb(:,:)
contains
subroutine deallocate_core()
IF( ALLOCATED( rhocb ) ) DEALLOCATE( rhocb )
end subroutine
end module core
module elct
use electrons_base, only: nspin, nel, nupdwn, iupdwn
use electrons_base, only: n => nbnd, nx => nbndx
use electrons_base, only: f, qbac, ispin => fspin
use electrons_base, only: deallocate_elct
implicit none
save
! f = occupation numbers
! qbac = background neutralizing charge
! nspin = number of spins (1=no spin, 2=LSDA)
! nel(nspin) = number of electrons (up, down)
! nupdwn= number of states with spin up (1) and down (2)
! iupdwn= first state with spin (1) and down (2)
! n = total number of electronic states
! nx = if n is even, nx=n ; if it is odd, nx=n+1
! nx is used only to dimension arrays
! ispin = spin of each state
!
end module elct
module gvec
use cell_base, only: tpiba, tpiba2
use reciprocal_vectors, only: &
gl, g, gx, g2_g, mill_g, mill_l, ig_l2g, igl, bi1, bi2, bi3
use reciprocal_vectors, only: deallocate_recvecs
use recvecs_indexes, only: np, nm, deallocate_recvecs_indexes
use gvecp, only: &
ng => ngm, &
ngl => ngml, &
ng_g => ngmt
! tpiba = 2*pi/alat
! tpiba2 = (2*pi/alat)**2
! ng = number of G vectors for density and potential
! ngl = number of shells of G
! G-vector quantities for the thick grid - see also doc in ggen
! g = G^2 in increasing order (in units of tpiba2=(2pi/a)^2)
! gl = shells of G^2 ( " " " " " )
! gx = G-vectors ( " " " tpiba =(2pi/a) )
!
! g2_g = all G^2 in increasing order, replicated on all procs
! mill_g = miller index of G vecs (increasing order), replicated on all procs
! mill_l = miller index of G vecs local to the processors
! ig_l2g = "l2g" means local to global, this array convert a local
! G-vector index into the global index, in other words
! the index of the G-v. in the overall array of G-vectors
! bi? = base vector used to generate the reciprocal space
!
! np = fft index for G>
! nm = fft index for G<
! mill_l = G components in crystal axis
!
implicit none
save
contains
subroutine deallocate_gvec
CALL deallocate_recvecs( )
CALL deallocate_recvecs_indexes( )
end subroutine
end module gvec
!
! lqmax: maximum angular momentum of Q (Vanderbilt augmentation charges)
! nqfx : maximum number of coefficients in Q smoothing
! nbrx : maximum number of distinct radial beta functions
! ndmx: maximum number of points in the radial grid
!
! nbeta number of beta functions (sum over all l)
! kkbeta last radial mesh point used to describe functions
! which vanish outside core
! nqf coefficients in Q smoothing
! nqlc angular momenta present in Q smoothing
! lll lll(j) is l quantum number of j'th beta function
! lmaxq highest angular momentum that is present in Q functions
! lmaxkb highest angular momentum that is present in beta functions
! dion bare pseudopotential D_{\mu,\nu} parameters
! (ionic and screening parts subtracted out)
! betar the beta function on a r grid (actually, r*beta)
! qqq Q_ij matrix
! qfunc Q_ij(r) function (for r>rinner)
! rinner radius at which to cut off partial core or Q_ij
!
! qfcoef coefficients to pseudize qfunc for different total
! angular momentum (for r<rinner)
! vloc_at local potential for each atom
module pseu
implicit none
save
! rhops = ionic pseudocharges (for Ewald term)
! vps = local pseudopotential in G space for each species
real(kind=8), allocatable:: rhops(:,:), vps(:,:)
contains
subroutine deallocate_pseu
IF( ALLOCATED( rhops ) ) DEALLOCATE( rhops )
IF( ALLOCATED( vps ) ) DEALLOCATE( vps )
end subroutine
end module pseu
module qgb_mod
implicit none
save
complex(kind=8), allocatable :: qgb(:,:,:)
contains
subroutine deallocate_qgb_mod
IF( ALLOCATED( qgb ) ) DEALLOCATE( qgb )
end subroutine
end module qgb_mod
module qradb_mod
implicit none
save
real(kind=8), allocatable:: qradb(:,:,:,:,:)
contains
subroutine deallocate_qradb_mod
IF( ALLOCATED( qradb ) ) DEALLOCATE( qradb )
end subroutine
end module qradb_mod
module work
implicit none
save
complex(kind=8), allocatable, target:: wrk1(:)
complex(kind=8), allocatable, target:: wrk2(:,:)
complex(kind=8), allocatable:: aux(:)
contains
subroutine deallocate_work
IF( ALLOCATED( wrk1 ) ) DEALLOCATE( wrk1 )
IF( ALLOCATED( wrk2 ) ) DEALLOCATE( wrk2 )
IF( ALLOCATED( aux ) ) DEALLOCATE( aux )
end subroutine
end module work
module work_box
implicit none
save
complex(kind=8), allocatable, target:: qv(:)
contains
subroutine deallocate_work_box
IF( ALLOCATED( qv ) ) DEALLOCATE( qv )
end subroutine
end module work_box
! Variable cell
module derho
implicit none
save
complex(kind=8),allocatable:: drhog(:,:,:,:)
real(kind=8),allocatable:: drhor(:,:,:,:)
contains
subroutine deallocate_derho
IF( ALLOCATED( drhog ) ) DEALLOCATE( drhog )
IF( ALLOCATED( drhor ) ) DEALLOCATE( drhor )
end subroutine
end module derho
module dener
implicit none
save
real(kind=8) detot(3,3), dekin(3,3), dh(3,3), dps(3,3), &
& denl(3,3), dxc(3,3), dsr(3,3)
end module dener
module dqgb_mod
implicit none
save
complex(kind=8),allocatable:: dqgb(:,:,:,:,:)
contains
subroutine deallocate_dqgb_mod
IF( ALLOCATED( dqgb ) ) DEALLOCATE( dqgb )
end subroutine
end module dqgb_mod
module dpseu
implicit none
save
real(kind=8),allocatable:: dvps(:,:), drhops(:,:)
contains
subroutine deallocate_dpseu
IF( ALLOCATED( dvps ) ) DEALLOCATE( dvps )
IF( ALLOCATED( drhops ) ) DEALLOCATE( drhops )
end subroutine
end module dpseu
module cdvan
implicit none
save
real(kind=8),allocatable:: dbeta(:,:,:,:,:), dbec(:,:,:,:), &
drhovan(:,:,:,:,:)
contains
subroutine deallocate_cdvan
IF( ALLOCATED( dbeta ) ) DEALLOCATE( dbeta )
IF( ALLOCATED( dbec ) ) DEALLOCATE( dbec )
IF( ALLOCATED( drhovan ) ) DEALLOCATE( drhovan )
end subroutine
end module cdvan