[lammps-users] Fix Rigid

Dear All,

I would like to use the Fix Rigid Programm to study a system of rigid objects. So first I have to define groups of atoms. However, I run into problems with the restriction that no more than 32 groups can be defined at one time. This number is much too small for my purposes. Is there any reason for this restriction? Is it possible to increase this limit and if so do I have to pay attention to something?

Thanks for your help in advance!

Best regards Elisabeth Schöll-Paschinger

Fix rigid has another option to define the rigid bodies by their
molecule ID. The
number of molecules is unlimited, so use that instead.

Steve