Dear Experts, Please suggest and advice me on wall parameters in coarse-grained MD. I used as follows, but segmentation fault and sorting errors happened. * ewald_geometry = 3dc ** nwall = 2 **wall_type = 12-6 **wall_r_linpot = -1 -1 **wall_atomtype = P1 P1 **wall_density = 12 12 **wall_ewald_zfac = 3 **pbc = xy* Best regards, Miji