[lammps-users] fix/rigid


How can I use fix/rigid with a barostat? My simulation box is triclinic.

**When I use fix/rigid with press/berendsen, I receive this error” Cannot use fix press/berendsen with triclinic box”.**

Is there another way to solve this problem?

you can't - the code has to be extended. We will release NVT and
NPT for rigid bodies sometime soon, but it won't be
for dynamic triclinic boxes.