 &control
    calculation = 'scf'
 /
 &system
    ibrav=  2, celldm(1) =25.0,
    nat=  1, ntyp= 1, 
    ecutwfc=30
    occupations = 'from_input'
    nspin = 2
    nbnd = 7
    nosym = .true.
 /
 &electrons
    conv_thr =  1.0d-6
 /
ATOMIC_SPECIES
 O   1.000  O.pz-kjpaw.UPF 
ATOMIC_POSITIONS {alat}
O   0.0   0.0   0.0
K_POINTS {gamma}
OCCUPATIONS
1. 1. 1. 1.   0. 0. 0. 
1. 1. 0. 0.    0. 0. 0.
  
