Rigid body integrator

Hi

Just wanted to check in the code where the rigid body routines are and how these integrations are performed. Is there a place to look, I've had a quick check but can't see the place these are handled. What methodology is used in Lammps for the rigid body i.e. DLM or something else?

Best

Brett

Hi

Just wanted to check in the code where the rigid body routines are and how these integrations are performed. Is there a place to look, I've had a quick check but can't see the place these are handled. What methodology is used in Lammps for the rigid body i.e. DLM or something else?

All time integration in lammps is done with fixes. Those are modular,
so the fix_rigid.cpp and fix_rigid.h files contain the (simple) rigid
integrator. Similarly for the more advanced ones. Information about
the method(s) used should be in the - gasp - online documentation and
the references it points to. You probably also want to have a look at
the developer guide to better understand the flow of control in lammps
during time integration.

Cheers,
     Axel