thanks and sorry for my older mail, i don't know how the k-points accounted for each q-vector (for example k-points {automatic} 10 10 10 0 0 0 for q-vector 0 0 0 47mesh and for 0.5 0.5 1, 1120 mesh ) ?? i want to use deferent K-points for any q_vector (manually )for achieve phonon frequency. MS saman ghaderyan Buali sina university, Iran