[lammps-users] Failure about the command ' fix aveforce' on the wall atom

Dear, everyone

There are two walls in my simulation system. I only want to push one wall in water, and the other keeps fixed. However, after a period of run (10ps), I found both of the two wall atoms are unmoved. Following is part of my Commond sets in input file.

It appears your fix 5 is time integrating all the atoms except
in the 2 walls. If you don't time integrate the walls, they
won't move.