1 &control
2    calculation = 'scf'
3 /
4 &system
5    ibrav=2, celldm(1) =10.20,
6    nat=2, ntyp=1,
7    ecutwfc=12.0
8 /
9 &electrons
10    mixing_mode = 'local-TF'
11 /
12ATOMIC_SPECIES
13 Si  28.086  Si.pz-vbc.UPF
14ATOMIC_POSITIONS (alat)
15 Si 0.00 0.00 0.00
16 Si 0.25 0.25 0.25
17K_POINTS
18  2
19   0.250000  0.250000  0.250000   1.00
20   0.250000  0.250000  0.750000   3.00
21