Phonons on a uniform grid
&inputph
  !recover = .true.
  verbosity='debug'
  nmix_ph=20
  tr2_ph=1.0d-14
  prefix='SnO'
  outdir='./SnO'
  ldisp=.true.
  epsil=.true.
  lqdir=.true.
  fildyn  = 'SnO.dyn.xml'
  fildvscf = 'dvscf'
  alpha_mix = 0.2
  asr = .true.
  nq1=8, nq2=8, nq3=1,
/
