becforce.f90

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! Copyright (C) 2020 J. K. Dewhurst and S. Sharma.
! This file is distributed under the terms of the GNU General Public License.
! See the file COPYING for license details.
 
subroutine becforce
use modmain
use modphonon
use modtddft
implicit none
integer its,is,ia
! generate the time step grid
call gentimes
! write zero force to file for all time steps
open(50,file='FORCETOT_TD.OUT',form='FORMATTED')
do its=1,ntimes,ntsforce
  write(50,'(I8,G18.10)') its,times(its)
  do is=1,nspecies
    do ia=1,natoms(is)
      write(50,'(2I4,3G18.10)') is,ia,0.d0,0.d0,0.d0
    end do
  end do
end do
close(50)
end subroutine