&control calculation = 'scf' restart_mode='from_scratch', prefix='silicon', tstress = .true. tprnfor = .true. pseudo_dir = './', outdir='./work' wf_collect = .true. / &system ibrav= 2, celldm(1) = 10.26, nat= 2, ntyp= 1, ecutwfc = 30.0, occupations='smearing' smearing='m-p' degauss=0.02 lspinorb = .true. noncolin = .true. / &electrons mixing_mode = 'plain' mixing_beta = 0.7 conv_thr = 1.0d-8 / &ions / ATOMIC_SPECIES Si 1 Si.rel-pbe-n-rrkjus_psl.0.1.UPF ATOMIC_POSITIONS Si 0.0000000000 0.0000000000 0.0000000000 Si 0.2500000000 0.2500000000 0.2500000000 K_POINTS {automatic} 8 8 8 1 1 1