I would like to read in initial positions, velocities, etc. for multispheres rather than using insert/pack to get the multisphere particles into my simulation. It is easy enough to read data for single spheres or a rigid body following the tips in the LIGGGHTS documentation. However, there is no mention of how to do this for multispheres. It seems as though it should be possible since multisphere restarts are possible from binary files.
I have not been able to convert a multisphere binary restart file into a readable data file using -restart command. I get a "Pair granular requires ghost atoms store velocity" error even though I have set communicate single vel yes in my input file.
Does anyone have any examples or hints on how to initialize a multisphere simulation from a data file?
Many thanks.