[Question] Explore Low-Fidelity timestep options in LAMMPS

[ZoeRichter]

Question or discussion topic.

The frictional contact force models in LAMMPS require very small timesteps that are sometimes much, much smaller than the total simulation time we may be interested in for a given project. If it is possible to run LAMMPS with a larger timestep - perhaps through a "low fidelity" mode that makes some simplifications/assumptions, that might help speed up wall-times.

Provide details.

Notably, it is possible to change the rate that things like dumped gifs, files, and LAMMPS logs output, but while this may appear to speed things up (particularly in the case of visualized LAMMPS run) this is not what we're looking for here.

External context or references.

How can this issue be closed?

This issue can be closed when it is determined, one way or another, if there is some sort of low fidelity/speed up assumption that can be used in LAMMPS.