&control
   calculation = 'scf',
   restart_mode='from_scratch',
   prefix='ch4',
   tprnfor = .true.,
   pseudo_dir = './',
   outdir='./tmp/'
/
&system
   ibrav = 1,
   celldm(1) = 15.0,
   nat = 5,
   ntyp= 2,
   ecutwfc = 40.0,
   nbnd = 5
/
&electrons
   diagonalization = 'cg'
   mixing_beta = 0.5,
   conv_thr = 1.0d-8
/
ATOMIC_SPECIES
 H  1.0   H.pz-vbc.UPF
 C  12.0  C.pz-vbc.UPF
ATOMIC_POSITIONS {bohr}
 H        1.198204546   1.198204546   1.198204546
 H       -1.198204546  -1.198204546   1.198204546
 H        1.198204546  -1.198204546  -1.198204546
 H       -1.198204546   1.198204546  -1.198204546
 C        0.000000000   0.000000000   0.000000000