&CONTROL
  calculation='scf',
  outdir='./',
  prefix='si',
  pseudo_dir='.',
  verbosity='high',
  tstress=.false.,
  tprnfor=.false.,
/

&SYSTEM
  ibrav=2,
  celldm(1)=10.2623466921d0,
  nat=2,
  ntyp=1,
  ecutwfc=40.0d0,
  ecutrho=300.0d0,
  nbnd=10,
  occupations='smearing'
  degauss=0.001
/
&ELECTRONS
  conv_thr =   1.0000000000d-08
  electron_maxstep = 50
  mixing_beta =   2.5000000000d-01
  scf_must_converge = .false.
/
ATOMIC_SPECIES
  Si 28.085500d0 Si.pbe-n-rrkjus_psl.1.0.0.UPF

ATOMIC_POSITIONS {alat}
  Si   0.0000000000d0   0.0000000000d0   0.0000000000d0
  Si   0.2500000000d0   0.2500000000d0   0.2500000000d0

K_POINTS automatic
6 6 6 1 1 1