&CONTROL
   calculation               = 'scf'
   prefix                    = 'pw'
   outdir                    = '.'
   pseudo_dir                = '.'
   disk_io                   = 'low'
   verbosity                 = 'high'
/

&SYSTEM
   ibrav                     = 0
   ntyp                      = 1
   nat                       = 2
   nbnd                      = 10
   occupations               = 'tetrahedra'
   nspin                     = 1
   ecutwfc                   = 44.0
   ecutrho                   = 175.0
   tot_charge                = -0.001
/

&ELECTRONS
   conv_thr                  = 3.67e-08
   electron_maxstep          = 200
/


ATOMIC_SPECIES
    Si      28.085  Si.pbe-n-kjpaw_psl.1.0.0.UPF

ATOMIC_POSITIONS crystal
    Si   0.00000000   0.00000000   0.00000000
    Si   0.25000000   0.25000000   0.25000000

CELL_PARAMETERS angstrom
        0.00000000   2.73450040   2.73450040
        2.73450040   0.00000000   2.73450040
        2.73450040   2.73450040   0.00000000

K_POINTS automatic
    17 17 17  0 0 0
