Dear GROMACS Users, I'm trying to use g_hbond (v4.0.3) to analyze a simulation which was generated with NAMD (trajectory was converted to .trr w/VMD). The g_hbond requires (i) a trajectory file, and (ii) a 'run input file' (tpr/tpa/tpb). How do i generate this tpr/tpa/tpb file? Is there any way I can use a plain PDB file for this? -Dima