Dear epw users and developers I'm using this input file for scf: &CONTROL calculation = 'scf', pseudo_dir = '.', title = ' 1 -1 2 2 -2 -1 2 -1 0 fcc SL' , wf_collect = .true., / &SYSTEM ibrav = 0, celldm(1) = 10.2631064800 , nat = 10 , ntyp = 2 , nbnd = 28 , ecutwfc = 20.000 , nr1=48 nr2=48 nr3=48 ...