[Pw_forum] relaxation

[Stefano de Gironcoli]

Dear Ali,
   a good start would be to read the documentation about atomic 
positions... especially the use of if_pos variables.
   hope it helps.
   stefano de Gironcoli -- SISSA and DEMOCRITOS

   PS: don't forget to include your affiliation in your massages.

ali kazempoor wrote:
> Dear All
> for relaxation a surface, i want to fix positions of
> one layer . could you help me how can i do that?
>