Lily Anh wrote: > I have changed ecutwfc (from 20-50Ry every 5 Ry), ecutrho (200-1200 > every 50), k grid. But nothing works.
of course nothing works: your system does not have the symmetry you pretend it has. The code follows some rather strict criteria to decide whether a symmetry operation is present or not. This is explained in detail in the user guide, and has been explained in this mailing list no less than 36000 times Paolo -- Paolo Giannozzi, Democritos and University of Udine, Italy
