Gromacs input data, together with spc216.gro from Gromacs distributions.

.. code-block:: shell

   cp /usr/share/gromacs/top/spc216.gro .
   gmx grompp -c spc216.gro
   gmx mdrun
   csg_map --top topol.tpr --trj traj.trr --first-frame=2 --no-map --out frame.dump --force
