conquest/src/pseudo_tm_info.f90

1099 lines
42 KiB
Fortran

! -*- mode: F90; mode: font-lock -*-
! ------------------------------------------------------------------------------
! $Id$
! ------------------------------------------------------------------------------
! Module pseudo_tm_info
! ------------------------------------------------------------------------------
! Code area 10: Pseudopotentials
! ------------------------------------------------------------------------------
!!****h* Conquest/pseudo_tm_info
!!
!! NAME
!! pseudo_tm_info
!! PURPOSE
!! Sets up and stores the information of pseudopotentials for
!! each species of atom.
!! For using TM's pseudopotetials,
!!
!! USES
!! datatypes, GenComms, numbers, splines, global_module
!! AUTHOR
!! T. Miyazaki
!! CREATION DATE
!! 18/06/2002
!! MODIFICATION HISTORY
!! 2008/02/06 08:32 dave
!! Changed for output to file not stdout
!! 2008/05/25
!! Added timers
!! 2011/03/30 19:07 M.Arita
!! Added statements for P.C.C.
!! 2014/09/15 18:30 lat
!! fixed call start/stop_timer to timer_module (not timer_stdlocks_module !)
!! 2015/11/09 17:21 dave with TM, NW (Mizuho)
!! Adding new members to pseudo_info derived type for neutral atom
!! 2017/11/27 15:52 dave with TM, NW
!! NA projectors added to pseudo_info type
!! 2019/12/03 08:21 dave
!! Added functional to ps_info structure
!! 2020/05/15 tsuyoshi
!! changed the type of z from integer to real
!! SOURCE
!!
module pseudo_tm_info
use datatypes, only: double
use GenComms, only: cq_abort
use global_module, only: area_pseudo, io_lun, flag_pcc_global
use timer_module, only: start_timer,stop_timer
use timer_stdclocks_module, only: tmr_std_allocation
implicit none
save
private
public :: rad_func, pseudo_info, pseudo, setup_pseudo_info, &
rad_alloc, rad_dealloc, loc_pot, loc_chg
! Choose between representing local part of pseudopotential as a local potential or charge density
integer :: loc_pot = 1
integer :: loc_chg = 2
!type rad_func is same as in TM
! see radial.f of SIESTA
type rad_func
integer :: n ! number of grids along radial direction
real(double) :: cutoff ! cutoff radius
real(double) :: delta ! step
real(double), pointer :: f(:) ! Actual data
real(double), pointer :: d2(:) ! Second derivative
! Reciprocal space for integrals
integer :: k_length
real(double) :: k_delta
real(double), pointer, dimension(:) :: k_table
end type rad_func
type pseudo_info
character(len=80) :: filename ! name of *.ion file
integer :: lmax ! maximum of the angular momentum
integer :: n_pjnl ! number of projector functions
logical :: flag_pcc ! flag for partial core correction
integer :: functional ! Code for functional if set in ion file
integer :: ps_type ! Type of pseudopotential (hamann/siesta)
real(double) :: z ! atomic weight
real(double) :: zval ! number of valence electrons
real(double) :: alpha ! exponent of gaussian for long range term
! of local pseudopotential (might not be used)
real(double) :: prefac ! (alpha/pi)**1.5 stored for efficiency
integer :: tm_loc_pot
type(rad_func) :: vlocal ! local potential
type(rad_func) :: chlocal ! local charge
! for Neutral atom potential
type(rad_func) :: chna ! neutral atom charge
type(rad_func) :: vna ! neutral atom potential
real(double) :: eshift ! shift of vchlocal-zval/r
type(rad_func) :: chpcc ! partial core charge
type(rad_func), pointer :: pjnl(:) ! size = n_pjnl, projector functions
integer, pointer :: pjnl_l(:) ! size = n_pjnl, angular momentum
integer, pointer :: pjnl_n(:) ! size = n_pjnl, index for projectors
real(double), pointer :: pjnl_ekb(:) ! size = n_pjnl, <phi_ln|dV_l|phi_ln>
! Neutral atom projectors
integer :: n_pjna ! number of NA projector functions
type(rad_func), pointer :: pjna(:) ! size = n_pjna, projector functions
integer, pointer :: pjna_l(:) ! size = n_pjna, angular momentum
integer, pointer :: pjna_n(:) ! size = n_pjna, index for projectors
real(double), pointer :: pjna_ekb(:) ! size = n_pjna, <phi_ln|V_na|phi_ln>
end type pseudo_info
type(pseudo_info), allocatable :: pseudo(:)
!!***
contains
!---------------------------------------------------------------
! sbrt setup_pseudo_info
!---------------------------------------------------------------
!!****f* pseudo_tm_info/setup_pseudo_info *
!!
!! NAME
!! setup_pseudo_info
!! USAGE
!!
!! PURPOSE
!! allocates pseudo(:), whose size is nspecies.
!! sets up the name of files *.ion and reads the files.
!! INPUTS
!! nspecies, species_label
!! USES
!!
!! AUTHOR
!! T. Miyazaki
!! CREATION DATE
!! 18/06/2002
!! MODIFICATION HISTORY
!! 2008/05/25
!! Added timers
!! 2011/03/30 M.Arita
!! Added statements for P.C.C.
!! 2011/09/16 11:00 dave
!! Changed to use n_species and species_label from species_module, and changed atomicrad to atomicnum
!! 2014/10/12 12:21 lat
!! Added possibility of user defined filename for PAO/pseudo *ion
!! 2017/02/17 15:59 dave
!! Changes to allow reading of Hamann's optimised norm-conserving pseudopotentials (remove ABINIT)
!! 2018/06/19 20:30 nakata
!! Add IF with pseudo_type for calling init_rad when ghost atoms are used
!! 2019/12/09 20:16 dave
!! Changes to read valence charge from pseudopotential file and test spin-polarised charge
!! SOURCE
!!
subroutine setup_pseudo_info
use datatypes
use numbers, ONLY: zero, RD_ERR, two
use pao_format, ONLY: pao
use species_module, ONLY: n_species, species_label, species_file, species_from_files
use species_module, ONLY: npao_species, nsf_species, type_species, charge, charge_up, charge_dn, mass
use global_module, ONLY: iprint_pseudo, flag_Multisite
use dimens, ONLY: RadiusSupport, RadiusAtomf, RadiusMS, InvSRange, atomicnum
use GenComms, ONLY: inode, ionode, cq_abort, gcopy
use pseudopotential_common, ONLY: pseudo_type, SIESTA, ABINIT
use sfc_partitions_module, only: gap_threshold
use maxima_module, ONLY: maxnsf
implicit none
!local
integer :: stat, ispecies, l, zeta
real(double) :: max_rc
character(len=80) :: filename
integer :: ii
if(allocated(pseudo)) then
if(iprint_pseudo>2.AND.inode==ionode) write(io_lun,fmt='(10x," setup_pseudo_info is skipped because it is already called")')
else
if(iprint_pseudo>1.AND.inode==ionode) write(io_lun,fmt='(/10x,a/)') "Reading ion files"
call start_timer(tmr_std_allocation)
allocate(pseudo(n_species),STAT=stat)
if(stat /= 0) call cq_abort ('allocating pseudo in setup_pseudo_info',stat)
allocate(pao(n_species),STAT=stat)
if(stat /= 0) call cq_abort ('allocating pao in setup_pseudo_info',stat)
call stop_timer(tmr_std_allocation)
flag_pcc_global = .false.
max_rc = zero
do ispecies=1,n_species
if(pseudo_type==SIESTA) then
pseudo(ispecies)%tm_loc_pot = loc_chg
else if(pseudo_type==ABINIT) then
pseudo(ispecies)%tm_loc_pot = loc_pot
else
call cq_abort("Error in pseudopotential type: ",pseudo_type)
end if
!**<lat>** 2014/10/12
if ( species_from_files ) then
write(filename,'(a,a)') trim(species_file(ispecies))
else
write(filename,'(a,a)') trim(species_label(ispecies)),".ion"
end if
if(iprint_pseudo>3.AND.inode==ionode) &
write(io_lun,fmt='(10x,"ispecies = ",i5," file = ",a)') ispecies, filename
pseudo(ispecies)%filename = filename
call read_ion_ascii_tmp(pseudo(ispecies),pao(ispecies))
npao_species(ispecies) = pao(ispecies)%count
! Set NSF if not set by user
if(nsf_species(ispecies)==0) nsf_species(ispecies) = pao(ispecies)%count
maxnsf = max(maxnsf,nsf_species(ispecies))
! Find radius for atom functions
do l=0,pao(ispecies)%greatest_angmom
do zeta=1,pao(ispecies)%angmom(l)%n_zeta_in_angmom
RadiusAtomf(ispecies) = max(RadiusAtomf(ispecies), &
pao(ispecies)%angmom(l)%zeta(zeta)%cutoff)
end do
end do
! Set SF radius if not set by user
if(abs(RadiusSupport(ispecies))<RD_ERR) RadiusSupport(ispecies) = RadiusAtomf(ispecies)
if(abs(InvSRange(ispecies))<RD_ERR) InvSRange(ispecies) = RadiusSupport(ispecies)
if (flag_Multisite) RadiusSupport(ispecies) = RadiusSupport(ispecies) + RadiusMS(ispecies)
max_rc = max(RadiusSupport(ispecies),max_rc)
atomicnum(ispecies) = nint(pseudo(ispecies)%z)
! Valence charge
charge(ispecies) = pseudo(ispecies)%zval
if(mass(ispecies) < zero) charge(ispecies) = zero
! Test spin polarised initialisation
if (abs(charge_up(ispecies)+charge_dn(ispecies))>RD_ERR) then
if (abs(charge_up(ispecies)+charge_dn(ispecies)-charge(ispecies))>RD_ERR) &
call cq_abort('read_input: sum of number of electrons &
&in spin channels is different from total &
&number of electrons for this species ', &
charge_up(ispecies)+charge_dn(ispecies),charge(ispecies))
end if
! For P.C.C.
if (pseudo(ispecies)%flag_pcc) flag_pcc_global = .true.
!For Ghost atoms
if(type_species(ispecies) < 0) then
pseudo(ispecies)%zval = zero
if(pseudo(ispecies)%n_pjnl > 0) then
do ii=1, pseudo(ispecies)%n_pjnl
call init_rad(pseudo(ispecies)%pjnl(ii))
enddo
endif
if(pseudo_type==ABINIT) call init_rad(pseudo(ispecies)%vlocal)
if(pseudo_type==SIESTA) call init_rad(pseudo(ispecies)%chlocal)
if(pseudo(ispecies)%flag_pcc) call init_rad(pseudo(ispecies)%chpcc)
pseudo(ispecies)%n_pjnl = 0
pseudo(ispecies)%flag_pcc = .false.
pseudo(ispecies)%pjnl_l(:) = 0
pseudo(ispecies)%pjnl_n(:) = 0
pseudo(ispecies)%pjnl_ekb(:) = zero
! pseudo(ispecies)%alpha
! pseudo(ispecies)%prefac
endif
if(npao_species(ispecies)<nsf_species(ispecies)) &
call cq_abort("Error ! Fewer PAOs than SFs. Decrease NumberOfSupports: ", &
npao_species(ispecies),nsf_species(ispecies))
!%%! cutoff = zero
!%%! do l=0,pao(ispecies)%greatest_angmom
!%%! if(pao(ispecies)%angmom(l)%n_zeta_in_angmom>0) then
!%%! do zeta = 1,pao(ispecies)%angmom(l)%n_zeta_in_angmom
!%%! cutoff = max(cutoff,pao(ispecies)%angmom(l)%zeta(zeta)%cutoff)
!%%! end do
!%%! end if
!%%! end do
!%%! if(cutoff>RadiusSupport(ispecies)) then
!%%! if(inode==ionode.AND.iprint_pseudo>0) &
!%%! write(io_lun,fmt='(10x,"Warning ! Species ",i3," support radius less than PAO radius ",f8.3)') ispecies,cutoff
!%%! !RadiusSupport(ispecies) = cutoff
!%%! endif
enddo
! This isn't ideal, but replaces a read for gap_threshold with default of two*max_rc
if(abs(gap_threshold)<RD_ERR) gap_threshold = two*max_rc
endif
!call gcopy(flag_pcc_global)
!call gcopy(gap_threshold)
!call gcopy(maxnsf)
!if (iprint_pseudo>0.AND.inode==ionode .AND.flag_pcc_global) &
! write (io_lun,fmt='(10x,a)') "P.C.C. is taken into account."
return
end subroutine setup_pseudo_info
!!***
!---------------------------------------------------------------
! sbrt alloc_pseudo_info
!---------------------------------------------------------------
!!****f* pseudo_tm_info/alloc_pseudo_info *
!!
!! NAME
!! alloc_pseudo_info
!! USAGE
!!
!! PURPOSE
!! Allocates memory for ps_info type
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!! May 2003
!! MODIFICATION HISTORY
!! 2008/05/25
!! Added timers
!! SOURCE
!!
subroutine alloc_pseudo_info(ps_info,n)
use memory_module, ONLY: reg_alloc_mem, type_int, type_dbl
implicit none
integer, intent(in) :: n
type(pseudo_info),intent(out):: ps_info
integer :: stat
ps_info%n_pjnl = n
call start_timer(tmr_std_allocation)
allocate(ps_info%pjnl(n), STAT=stat)
if(stat /= 0) call cq_abort('alloc pjnl in alloc_pseudo_info',stat)
allocate(ps_info%pjnl_l(n), ps_info%pjnl_n(n), STAT=stat)
if(stat /= 0) call cq_abort('alloc pjnl_l&n in alloc_pseudo_info',stat)
call reg_alloc_mem(area_pseudo,n,type_int)
allocate(ps_info%pjnl_ekb(n), STAT=stat)
if(stat /= 0) call cq_abort('alloc pjnl_ekb in alloc_pseudo_info',stat)
call reg_alloc_mem(area_pseudo,n,type_dbl)
call stop_timer(tmr_std_allocation)
return
end subroutine alloc_pseudo_info
!!***
!---------------------------------------------------------------
! sbrt rad_alloc : from TM
!---------------------------------------------------------------
!!****f* pseudo_tm_info/rad_alloc *
!!
!! NAME
!! rad_alloc
!! USAGE
!!
!! PURPOSE
!! Sets the 'size' n of the arrays and allocates f and d2.
!!
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!!
!! MODIFICATION HISTORY
!! 2008/05/25
!! Added timers
!! SOURCE
!!
subroutine rad_alloc(func,n)
use memory_module, ONLY: reg_alloc_mem, type_dbl
implicit none
type(rad_func), intent(out) :: func
integer, intent(in) :: n
integer :: stat
func%n = n
call start_timer(tmr_std_allocation)
allocate(func%f(n),func%d2(n),STAT=stat)
if(stat /= 0) call cq_abort('allocating radial func in rad_alloc',stat)
call reg_alloc_mem(area_pseudo,2*n,type_dbl)
call stop_timer(tmr_std_allocation)
return
end subroutine rad_alloc
!!***
!---------------------------------------------------------------
! sbrt rad_dealloc
!---------------------------------------------------------------
!!****f* pseudo_tm_info/rad_dealloc *
!!
!! NAME
!! rad_dealloc
!! USAGE
!!
!! PURPOSE
!! Deallocates f and d2
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!!
!! MODIFICATION HISTORY
!! 2008/05/25
!! Added timers
!! SOURCE
!!
subroutine rad_dealloc(func)
use memory_module, ONLY: reg_dealloc_mem, type_dbl
implicit none
type(rad_func), intent(inout) :: func
integer :: stat
call start_timer(tmr_std_allocation)
deallocate(func%f,func%d2,STAT=stat)
if(stat /= 0) call cq_abort('deallocating radial func in rad_alloc',stat)
call reg_dealloc_mem(area_pseudo,2*func%n,type_dbl)
nullify(func%f, func%d2)
call stop_timer(tmr_std_allocation)
return
end subroutine rad_dealloc
!!***
!---------------------------------------------------------------
! sbrt init_rad: from TM
!---------------------------------------------------------------
!!****f* pseudo_tm_info/init_rad *
!!
!! NAME
!! init_rad
!! USAGE
!!
!! PURPOSE
!! initilise all members of rad_func
!!
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!!
!! MODIFICATION HISTORY
!! 2012/06/17 L.Tong
!! - Changed func to intent(inout) from intent(out). If set to out,
!! then all members of func upon entering the subroutine
!! becomes undefined! This means f and d2 becomes disassociated
!! and non-allocated.
!! SOURCE
!!
subroutine init_rad(func)
use numbers, only: zero
implicit none
type(rad_func), intent(inout) :: func
func%n = 0
func%cutoff = zero
func%delta = zero
func%f(:) = zero
func%d2(:) = zero
return
end subroutine init_rad
!!***
!---------------------------------------------------------------
! sbrt radial_read_ascii : from SIESTA, with small changes
!---------------------------------------------------------------
!!****f* pseudo_tm_info/radial_read_ascii *
!!
!! NAME
!! radial_read_ascii
!! USAGE
!!
!! PURPOSE
!! Reads radial table
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!!
!! MODIFICATION HISTORY
!! 10:17, 2004/01/12 dave
!! Changed formatting for reads to read new Siesta (1.3) pseudos
!! 2017/11/10 14:24 dave
!! Changed yp1 and ypn to use first derivative (simple FD) instead of zero
!! 2018/03/08 09:54 dave
!! Added consistency check between cutoff and step size/number of points
!! 2022/08/04 11:48 dave
!! Added optional arguments to allow setting of derivatives at j=1 and j=n
!! (initially for PCC to allow dy/dr=0 at r=0)
!! SOURCE
!!
subroutine radial_read_ascii(op,lun,dy1,dyn)
use numbers, ONLY: BIG, zero, RD_ERR
use splines, ONLY: spline
use global_module, ONLY: iprint_pseudo
use GenComms, ONLY: myid, cq_warn
implicit none
! Passed variables
type(rad_func),intent(out) :: op
integer,intent(in) :: lun
real(double), optional :: dy1, dyn ! Allow user to specify gradients at start/end of table
! Local variables
character(len=80) :: sub_name = "radial_read_ascii"
integer :: j, npts
real(double) :: dummy, r0, r1
real(double) :: yp1, ypn
real(double) :: delta, cutoff
!ori read(lun,'(i4,2g25.15)') npts, op%delta, op%cutoff
! read(lun,'(i4,2g25.15)') npts, delta, cutoff
read(lun,*) npts, delta, cutoff
! DRB 2018/03/08 Adding consistency check between cutoff and delta
if(abs(cutoff - delta*real(npts-1,double))>RD_ERR) then
call cq_warn(sub_name, "In ion file, cutoff and step inconsistent, cutoff will be adjusted: ",&
cutoff,delta*real(npts-1,double))
cutoff=delta*real(npts-1,double)
end if
if(myid==0.AND.iprint_pseudo>3) write(io_lun,fmt='(10x,"Radius: ",f15.10)') cutoff
op%delta = delta
op%cutoff= cutoff
call rad_alloc(op,npts)
! Test step size in radial grid is consistent
read(lun,*) r0, op%f(1)
read(lun,*) r1, op%f(2)
if(abs(r1-r0-delta)>RD_ERR) then
call cq_warn(sub_name, "Radial grid and step inconsistent ! ",r1-r0,delta)
! DRB 2018/03/08 10:55
! I can see an argument to abort here - if the step size and grid are inconsistent we may have problems
end if
do j=3,npts
read(lun,*) dummy, op%f(j)
enddo
if(present(dy1)) then
yp1 = dy1
else
yp1= (op%f(2)-op%f(1))/delta
endif
if(present(dyn)) then
ypn = dyn
else
ypn= (op%f(npts)-op%f(npts-1))/delta
endif
call spline(op%n, op%delta, op%f, yp1, ypn, op%d2)
return
end subroutine radial_read_ascii
!!***
!---------------------------------------------------------------
! sbrt read_ion_ascii_tmp
!---------------------------------------------------------------
!!****f* pseudo_tm_info/read_ion_ascii_tmp *
!!
!! NAME
!! read_ion_ascii_tmp
!! USAGE
!!
!! PURPOSE
!! this subroutine only reads KB projectors,
!! chlocal and partial core charge
!! INPUTS
!!
!!
!! USES
!!
!! AUTHOR
!! T.Miyazaki
!! CREATION DATE
!!
!! MODIFICATION HISTORY
!! 13:04, 31/10/2003 drb
!! Added routine to create lmax for pseudos
!! 11:00, 13/02/2006 drb
!! Changed line length
!! 2006/10/17 08:18 dave
!! Rewrote to read once on inode and broadcast
!! 2007/02/12 08:21 dave
!! Added changes for TM potentials from ABINIT
!! 2007/08/16 15:36 dave
!! More tweaks for local potential (particularly short/long range division)
!! 09:30, 27/11/2007 drb
!! Added calculation of prefac on all processors for local potential
!! 2008/05/25
!! Added timers
!! 2008/09/01 08:21 dave
!! Added io_ routines from input_module
!! 2013/07/05 dave
!! Added reading and copying of z, charge state of ion
!! Changed to read ALL radial functions for a given l (now picks up "semi-core" PAOs)
!! 2016/01/28 16:46 dave
!! Updated module name to ion_electrostatic
!! 2016/02/09 08:17 dave
!! Changed to use erfc from functions module
!! 2016/01/09 20:00 nakata
!! Added pao_info%angmom%prncpl
!! 2017/02/24 10:06 dave & tsuyoshi
!! Bug fix for read_header_tmp: removed formatting for zval
!! 2017/03/13 dave
!! Repeated bug fix for other if branch in read_header_tmp (credit Jac van Driel for finding issue)
!! 2017/03/14 dave
!! Changed string comparisons to use leqi from input_module (direct comparison breaks on Cray)
!! 2017/03/23 dave
!! Added storage of spacing of PAO table
!! 2017/11/10 14:22 dave
!! Bug fix: added Ry->Ha conversion for Siesta VNA d2 table (as well as f table)
!! 2018/01/22 14:39 JST dave
!! Added test for lmax_pao/lmax_ps to find maximum PAO/PP angular momentum
!! 2018/10/30 11:02 dave
!! Added semicore flag for each zeta
!! 2018/11/02 16:30 nakata
!! Bug fix: set semicore when numprocs>1
!! 2020/01/22 16:59 dave
!! Bug fix: change header to read Hamann code version line if present
!! 2022/08/04 11:50 dave
!! Add zero derivatives to PCC read routine to set physically
!! SOURCE
!!
subroutine read_ion_ascii_tmp(ps_info,pao_info)
use numbers, ONLY: six, half, zero, pi, one
use global_module, ONLY: numprocs, iprint_pseudo
use GenComms, ONLY: inode, ionode, gcopy, cq_warn, cq_abort
use pao_format, ONLY: species_pao
use splines, ONLY : spline
use memory_module, ONLY: reg_alloc_mem, type_dbl
use functions, ONLY: erfc_cq
use input_module, ONLY: io_assign, io_close
use pseudopotential_common, ONLY: pseudo_type, SIESTA, ABINIT
use maxima_module, only: lmax_pao, lmax_ps
implicit none
! Passed variables
type(pseudo_info),intent(inout) :: ps_info
type(species_pao),intent(inout) :: pao_info
! Local variables
character(len=80) :: sub_name = "read_ion_ascii_tmp"
type(rad_func), dimension(:), allocatable :: dummy_rada
type(rad_func) :: dummy_rad
character(len=80) :: filename
integer :: i, lun , i1, i2, i3, i4
real(double) :: dummy, a, r
integer :: n_orbnl, n_pjnl
real(double) :: z, zval, yp1, ypn, erfarg, tmpv
real(double), parameter :: ln10 = 2.302585092994_double
integer :: iproc, lmax, maxz, alls, nzeta, l, count,tzl, xc_func, ps_type
real(double), allocatable :: thispop(:)
integer, allocatable :: thisl(:), thisn(:), thisz(:), zl(:), indexlz(:,:)
if(inode==ionode) then
filename=ps_info%filename
call io_assign(lun)
open(lun,file=filename,status='old',form='formatted')
rewind(lun)
xc_func = 0
ps_type = 0
call read_header_tmp(n_orbnl,lmax,n_pjnl, zval, z, lun, xc_func, ps_type)
if(xc_func/=0) then
ps_info%functional = xc_func
end if
if(ps_type/=0) then
ps_info%ps_type = ps_type
if(ps_info%ps_type/=pseudo_type) &
call cq_abort("Error: ion file pseudopotential type incompatible with input file ", &
ps_info%ps_type, pseudo_type)
else
call cq_warn(sub_name, "Pseudopotential type not detected from ion file")
end if
call alloc_pseudo_info(ps_info, n_pjnl)
call start_timer(tmr_std_allocation)
allocate(dummy_rada(n_orbnl),thisl(n_orbnl),thisn(n_orbnl),thisz(n_orbnl),thispop(n_orbnl),zl(0:lmax))
call stop_timer(tmr_std_allocation)
ps_info%z = z
ps_info%zval = zval
read(lun,*)
zl = 0
maxz = 0
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading PAOs")')
do i=1,n_orbnl
read(lun,*) i1,i2,i3,i4, dummy
thisl(i)=i1
thisn(i)=i2
!thisz(i)=i3
thispop(i)=dummy
zl(thisl(i)) = zl(thisl(i))+1
thisz(i)=zl(thisl(i))
!if(thisz(i)>zl(thisl(i))) zl(thisl(i))=thisz(i)
maxz = max(maxz,thisz(i))
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"l: ",i3," z: ",i3)') i1,i3
call radial_read_ascii(dummy_rada(i),lun)
enddo
allocate(indexlz(maxz,0:lmax))
indexlz = 0
do i=1,n_orbnl
indexlz(thisz(i),thisl(i)) = i
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"indexlz: ",3i5)') thisz(i),thisl(i),i
end do
! Now store data
pao_info%greatest_angmom = lmax
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(0:lmax),STAT=alls)
call stop_timer(tmr_std_allocation)
count = 0
if(alls/=0) call cq_abort('Failed to allocate PAOs')
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Storing PAOs lmax: ",i5)') lmax
do l=0,lmax
pao_info%angmom(l)%n_zeta_in_angmom = zl(l)
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"l, zl: ",2i5)') l,zl(l)
if(zl(l)>0) then
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(l)%zeta(zl(l)),pao_info%angmom(l)%prncpl(zl(l)), &
pao_info%angmom(l)%occ(zl(l)),pao_info%angmom(l)%semicore(zl(l)),STAT=alls)
pao_info%angmom(l)%semicore(:) = 0
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta')
call stop_timer(tmr_std_allocation)
count = count + zl(l)*(2*l+1)
do nzeta = 1,zl(l)
i = indexlz(nzeta,l)
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"i,z,l: ",3i5)') i,nzeta,l
pao_info%angmom(l)%zeta(nzeta)%length = dummy_rada(i)%n
pao_info%angmom(l)%zeta(nzeta)%cutoff = dummy_rada(i)%cutoff
pao_info%angmom(l)%zeta(nzeta)%delta = dummy_rada(i)%delta
pao_info%angmom(l)%prncpl(nzeta) = thisn(i)
pao_info%angmom(l)%occ(nzeta) = thispop(i)
if(pao_info%angmom(l)%zeta(nzeta)%length>=1) then
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(l)%zeta(nzeta)%table(pao_info%angmom(l)%zeta(nzeta)%length),STAT=alls)
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta')
call reg_alloc_mem(area_pseudo,pao_info%angmom(l)%zeta(nzeta)%length,type_dbl)
call stop_timer(tmr_std_allocation)
pao_info%angmom(l)%zeta(nzeta)%table(1:dummy_rada(i)%n) = dummy_rada(i)%f(1:dummy_rada(i)%n)
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(l)%zeta(nzeta)%table2(pao_info%angmom(l)%zeta(nzeta)%length),STAT=alls)
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta')
call reg_alloc_mem(area_pseudo,pao_info%angmom(l)%zeta(nzeta)%length,type_dbl)
call stop_timer(tmr_std_allocation)
else
call cq_abort('PAO with zero length: ',l,nzeta)
end if
yp1 = (pao_info%angmom(l)%zeta(nzeta)%table(2)-pao_info%angmom(l)%zeta(nzeta)%table(1))/ &
dummy_rada(i)%delta
ypn = (pao_info%angmom(l)%zeta(nzeta)%table(dummy_rada(i)%n)-&
pao_info%angmom(l)%zeta(nzeta)%table(dummy_rada(i)%n-1))/ &
dummy_rada(i)%delta
call spline(dummy_rada(i)%n,dummy_rada(i)%delta,pao_info%angmom(l)%zeta(nzeta)%table, &
yp1,ypn,pao_info%angmom(l)%zeta(nzeta)%table2)
end do
end if
end do
pao_info%count = count
deallocate(indexlz)
do i=1,n_orbnl
call rad_dealloc(dummy_rada(i))
end do
deallocate(dummy_rada,thisl,thisn,thisz,thispop,zl)
! KBs
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading KB projectors ")')
read(lun,*)
ps_info%lmax = 0
do i=1,ps_info%n_pjnl
! read(lun,'(2i3,f22.16)') &
read(lun,*) &
ps_info%pjnl_l(i), ps_info%pjnl_n(i), ps_info%pjnl_ekb(i)
!! 25/Jul/2002 TM : Rydberg units -> Hartree units
ps_info%pjnl_ekb(i) = half* ps_info%pjnl_ekb(i)
if(iprint_pseudo>1.AND.inode==ionode) write(io_lun,fmt='(10x,"PSEUDO_TM: i, l,n, ekb = ",2i3,f22.16)') &
ps_info%pjnl_l(i), ps_info%pjnl_n(i),ps_info%pjnl_ekb(i)
if(ps_info%pjnl_l(i)>ps_info%lmax) ps_info%lmax = ps_info%pjnl_l(i)
call radial_read_ascii(ps_info%pjnl(i),lun)
enddo
!Vlocal
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading Vna ")')
read(lun,*)
! Read and store local potential; it may be local part of pseudo, or neutral atom
! DRB 2017/02/21 switch here: after vna, get vlocal for Hamann, chlocal for siesta
! DRB 2017/02/21 This is the NA potential
if(pseudo_type==SIESTA) then
call radial_read_ascii(ps_info%vna,lun)
ps_info%vna%f = half*ps_info%vna%f ! Siesta works in Ry
ps_info%vna%d2 = half*ps_info%vna%d2 ! Siesta works in Ry
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading Chlocal ")')
read(lun,*)
call radial_read_ascii(ps_info%chlocal,lun)
else if(pseudo_type==ABINIT) then
call radial_read_ascii(ps_info%vna,lun)
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading Vlocal ")')
read(lun,*)
call radial_read_ascii(ps_info%vlocal,lun)
end if
!sets up gaussian which is used to calculate G=0 term
! exp( - alpha * cutoff **2 ) = 10 **(-six)
if(ps_info%tm_loc_pot==loc_pot) then
ps_info%alpha = six * ln10 / (ps_info%vlocal%cutoff ** 2)
ps_info%prefac = (ps_info%alpha/pi)**1.5_double
! Remove long-range part from short-range part
a = sqrt(ps_info%alpha)
!r = ps_info%vlocal%delta
r = 1.0e-7_double
erfarg = one - erfc_cq(a*r)
!erfarg = derf(a*r)
tmpv = ps_info%vlocal%f(1)
ps_info%vlocal%f(1) = ps_info%vlocal%f(1) + ps_info%zval * erfarg/r
!write(52,*) r,ps_info%vlocal%f(1),tmpv,ps_info%zval * erfarg/r!ps_info%zval * derf(a*r)/r
do i=2,ps_info%vlocal%n
r = ps_info%vlocal%delta*real(i-1,double)
erfarg = one - erfc_cq(a*r)
tmpv = ps_info%vlocal%f(i)
ps_info%vlocal%f(i) = ps_info%vlocal%f(i) + ps_info%zval * erfarg/r
!write(52,*) r,ps_info%vlocal%f(i), tmpv,ps_info%zval * erfarg/r!,ps_info%zval * derf(a*r)/r
end do
call spline(ps_info%vlocal%n, ps_info%vlocal%delta, ps_info%vlocal%f, zero, zero, ps_info%vlocal%d2)
else
ps_info%alpha = six * ln10 / (ps_info%chlocal%cutoff ** 2)
endif
!Core
! 2017/03/17 dave
! I'm removing this because we read the PCC flag from the pseudopotential header
!ps_info%flag_pcc = .false.
!! I *really* don't like this, but we'll stay with it for now
!read(lun,*,end=9999)
if(ps_info%flag_pcc) then
read(lun,*)
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x,"Reading pcc ")')
call radial_read_ascii(ps_info%chpcc,lun,zero,zero)
end if
!ps_info%flag_pcc = .true.
!9999 continue
call io_close(lun)
endif ! (inode == ionode) then
! Now broadcast the information
call gcopy(lmax )
if(lmax>lmax_pao) lmax_pao = lmax
call gcopy(n_pjnl )
call gcopy(zval)
call gcopy(xc_func)
call gcopy(z)
if(inode/=ionode) then
call alloc_pseudo_info(ps_info, n_pjnl)
ps_info%zval = zval
ps_info%z = z
if(xc_func/=0) ps_info%functional = xc_func
pao_info%greatest_angmom = lmax
allocate(pao_info%angmom(0:lmax),STAT=alls)
end if
if(numprocs>1) then
count = 0
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,*) 'PAOs'
do l=0,lmax
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(10x," l is ",i5)') l
call gcopy(pao_info%angmom(l)%n_zeta_in_angmom)
tzl = pao_info%angmom(l)%n_zeta_in_angmom
if(tzl>0) then
if(inode/=ionode) then
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(l)%zeta(tzl),pao_info%angmom(l)%prncpl(tzl),&
pao_info%angmom(l)%occ(tzl),pao_info%angmom(l)%semicore(tzl),STAT=alls)
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta')
call stop_timer(tmr_std_allocation)
end if
count = count + tzl*(2*l+1)
do nzeta = 1,tzl
call gcopy(pao_info%angmom(l)%zeta(nzeta)%length)
call gcopy(pao_info%angmom(l)%zeta(nzeta)%cutoff)
call gcopy(pao_info%angmom(l)%zeta(nzeta)%delta)
call gcopy(pao_info%angmom(l)%prncpl(nzeta))
call gcopy(pao_info%angmom(l)%occ(nzeta))
call gcopy(pao_info%angmom(l)%semicore(nzeta))
if(inode/=ionode) then
if(pao_info%angmom(l)%zeta(nzeta)%length>=1) then
call start_timer(tmr_std_allocation)
allocate(pao_info%angmom(l)%zeta(nzeta)%table(pao_info%angmom(l)%zeta(nzeta)%length),STAT=alls)
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta',pao_info%angmom(l)%zeta(nzeta)%length)
call reg_alloc_mem(area_pseudo,pao_info%angmom(l)%zeta(nzeta)%length,type_dbl)
allocate(pao_info%angmom(l)%zeta(nzeta)%table2(pao_info%angmom(l)%zeta(nzeta)%length),STAT=alls)
if(alls/=0) call cq_abort('Failed to allocate PAOs zeta ',pao_info%angmom(l)%zeta(nzeta)%length)
call reg_alloc_mem(area_pseudo,pao_info%angmom(l)%zeta(nzeta)%length,type_dbl)
call stop_timer(tmr_std_allocation)
end if
end if
call gcopy(pao_info%angmom(l)%zeta(nzeta)%table,pao_info%angmom(l)%zeta(nzeta)%length)
call gcopy(pao_info%angmom(l)%zeta(nzeta)%table2,pao_info%angmom(l)%zeta(nzeta)%length)
end do
end if
end do
pao_info%count = count
if(inode/=ionode) ps_info%lmax = 0
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,*) 'PPs'
do i=1,ps_info%n_pjnl
if(iprint_pseudo>3.AND.inode==ionode) write(io_lun,fmt='(2x,"Projector number: ",i3)') i
call gcopy(ps_info%pjnl_l(i))
call gcopy(ps_info%pjnl_n(i))
call gcopy(ps_info%pjnl_ekb(i))
if(inode/=ionode.AND.ps_info%pjnl_l(i)>ps_info%lmax) ps_info%lmax = ps_info%pjnl_l(i)
call gcopy(ps_info%pjnl(i)%delta)
call gcopy(ps_info%pjnl(i)%cutoff)
call gcopy(ps_info%pjnl(i)%n)
if(inode/=ionode) call rad_alloc(ps_info%pjnl(i),ps_info%pjnl(i)%n)
call gcopy(ps_info%pjnl(i)%f,ps_info%pjnl(i)%n)
call gcopy(ps_info%pjnl(i)%d2,ps_info%pjnl(i)%n)
end do
if(ps_info%lmax>lmax_ps) lmax_ps = ps_info%lmax
if(pseudo_type==SIESTA) then
!Chlocal
call gcopy(ps_info%tm_loc_pot)
call gcopy(ps_info%chlocal%n)
call gcopy(ps_info%chlocal%cutoff)
call gcopy(ps_info%chlocal%delta)
if(inode/=ionode) call rad_alloc(ps_info%chlocal,ps_info%chlocal%n)
call gcopy(ps_info%chlocal%f,ps_info%chlocal%n)
call gcopy(ps_info%chlocal%d2,ps_info%chlocal%n)
! Vna
call gcopy(ps_info%vna%n)
call gcopy(ps_info%vna%cutoff)
call gcopy(ps_info%vna%delta)
if(inode/=ionode) call rad_alloc(ps_info%vna,ps_info%vna%n)
call gcopy(ps_info%vna%f,ps_info%vna%n)
call gcopy(ps_info%vna%d2,ps_info%vna%n)
else if(pseudo_type==ABINIT) then
!Vlocal
call gcopy(ps_info%tm_loc_pot)
call gcopy(ps_info%vlocal%n)
call gcopy(ps_info%vlocal%cutoff)
call gcopy(ps_info%vlocal%delta)
if(inode/=ionode) call rad_alloc(ps_info%vlocal,ps_info%vlocal%n)
call gcopy(ps_info%vlocal%f,ps_info%vlocal%n)
call gcopy(ps_info%vlocal%d2,ps_info%vlocal%n)
! Vna
call gcopy(ps_info%vna%n)
call gcopy(ps_info%vna%cutoff)
call gcopy(ps_info%vna%delta)
if(inode/=ionode) call rad_alloc(ps_info%vna,ps_info%vna%n)
call gcopy(ps_info%vna%f,ps_info%vna%n)
call gcopy(ps_info%vna%d2,ps_info%vna%n)
end if
if(inode/=ionode) then
if(ps_info%tm_loc_pot==loc_pot) then
ps_info%alpha = six * ln10 / (ps_info%vlocal%cutoff ** 2)
ps_info%prefac = (ps_info%alpha/pi)**1.5_double
else
ps_info%alpha = six * ln10 / (ps_info%chlocal%cutoff ** 2)
end if
end if
call gcopy(ps_info%flag_pcc)
if(ps_info%flag_pcc) then
call gcopy(ps_info%chpcc%n)
call gcopy(ps_info%chpcc%cutoff)
call gcopy(ps_info%chpcc%delta)
if(inode/=ionode) call rad_alloc(ps_info%chpcc,ps_info%chpcc%n)
call gcopy(ps_info%chpcc%f,ps_info%chpcc%n)
call gcopy(ps_info%chpcc%d2,ps_info%chpcc%n)
end if
end if ! numprocs>1
contains
subroutine read_header_tmp(n_orbnl, lmax_basis, n_pjnl, zval, z, unit, xc_func, pseudo_type)
use global_module, ONLY: iprint_pseudo
use input_module, ONLY: leqi
use XC, ONLY: functional_lda_pw92, functional_gga_pbe96, functional_gga_pbe96_rev98, &
functional_gga_pbe96_r99, functional_gga_pbe96_wc
implicit none
integer, intent(in) :: unit
integer, intent(out) :: n_orbnl, n_pjnl, xc_func, pseudo_type
real(double), intent(out) :: z, zval
character(len=78) :: line, trim_line
character(len=2) :: symbol
character(len=20) :: label
integer :: lmax_basis, lmax_projs, zval_int
real(double) :: mass, self_energy
! For judging P.C.C.
character(len=2) :: symbol2, xc_code
character(len=3) :: rel
character(len=4) :: pcc
xc_func = 0
pseudo_type = 0
! Judge if P.C.C. is considered
read(unit,'(a)') line
trim_line = trim(line)
if (leqi(trim_line(1:10),'<preamble>')) then
read(unit,'(a)') line
trim_line = trim(line)
do while(.NOT.leqi(trim_line(1:11),'</preamble>'))
read(unit,'(a)') line
trim_line = trim(line)
if (leqi(trim_line(1:24),'<pseudopotential_header>')) then
read (unit, '(1x,a2,1x,a2,1x,a3,1x,a4)') symbol2, xc_code, rel, pcc
if (leqi(pcc,'pcec')) then
ps_info%flag_pcc = .true.
else !if (pcc .NE. 'pcec') then
ps_info%flag_pcc = .false.
endif
! Set XC functional
if(xc_func==0) then
if(leqi(xc_code,'ca')) then ! LDA; ATOM code uses PZ81 but use PW92
xc_func = functional_lda_pw92
else if(leqi(xc_code,'pb')) then ! PBE
xc_func = functional_gga_pbe96
else if(leqi(xc_code,'rv')) then ! RevPBE
xc_func = functional_gga_pbe96_rev98
else if(leqi(xc_code,'rp')) then ! RPBE
xc_func = functional_gga_pbe96_r99
else if(leqi(xc_code,'wc')) then ! Wu-Cohen
xc_func = functional_gga_pbe96_wc
end if
end if
read(unit,'(a)') line
trim_line = trim(line)
if(.NOT.leqi(trim_line(1:25),'</pseudopotential_header>')) then
if(leqi(trim_line(2:4),'ATM')) pseudo_type = 1 ! Siesta-type
end if
else if (leqi(trim_line(1:14),'<Conquest_pseu')) then
read(unit,'(a)') line ! Check this for Hamann
if(leqi(line(3:8),'Hamann')) pseudo_type = 3
if(leqi(line(3:10),'Hamann c')) read(unit,'(a)') line
read(unit,'(a)') line ! Core radii
read(unit,'(a)') line ! Valence shells
read(unit,'(a26,i7)') line, xc_func
endif
end do
endif
if(iprint_pseudo>1) then
read(unit,'(a2)') symbol
write(io_lun,fmt='(10x,"symbol = ",a2)') symbol
read(unit,'(a20)') label
write(io_lun,fmt='(10x,"label = ",a20)') label
read(unit,*) z
write(io_lun,fmt='(10x,"z = ",f12.5)') z
read(unit,*) zval
write(io_lun,fmt='(10x,"zval_int, zval = ",f12.5)') zval
read(unit,*) mass
write(io_lun,fmt='(10x,"mass = ",g25.15)') mass
read(unit,*) self_energy
write(io_lun,fmt='(10x,"self_energy = ",g25.15)') self_energy
read(unit,'(2i4)') lmax_basis, n_orbnl
write(io_lun,fmt='(10x,"lmax_basis, n_orbnl = ",2i4)') lmax_basis, n_orbnl
read(unit,'(2i4)') lmax_projs, n_pjnl
write(io_lun,fmt='(10x,"lmax_projs, n_pjnl = ",2i4)') lmax_projs, n_pjnl
if(xc_func/=0) write(io_lun,fmt='(10x,"XC functional code = ",i8)') xc_func
else
read(unit,'(a2)') symbol
read(unit,'(a20)') label
read(unit,*) z
read(unit,*) zval!_int
!zval=zval_int
read(unit,'(g25.15)') mass
read(unit,'(g25.15)') self_energy
read(unit,'(2i4)') lmax_basis, n_orbnl
read(unit,'(2i4)') lmax_projs, n_pjnl
end if
end subroutine read_header_tmp
end subroutine read_ion_ascii_tmp
!!***
end module pseudo_tm_info