On Jul 20, 2011, at 19:12 , Wilfredo Ibarra Hernández wrote: > I'm looking for the npk variable [...] Where is this variable? in Modules/parameters.f90 P. --- Paolo Giannozzi, Dept of Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222