Dear LAMMPS users,
I’m dealing with Coulombic interactions with PPPM method, but my simulation box will increase by 1.5 to 2 times during the simulation.
Do you guys have such experience and tell me how to set parameters for the PPPM command? so that I can keep the same precision throughout the entire simulation.
e.g. the parameters mesh, order, especially the parameter gewald.
Should I choose automatic meshing instead of setting them manually?