dump command

Dear all

I would like to know whether there is any specific option in the dump command for the periodic boundary condition to consider “ONLY” the initial atoms existing in the simulation box throughout the simulation even if they go out of the box.I mean, I want to visualize only the initial atoms of the box even if they leave the box without visualizing the new atoms coming into the box.

Regards,
Soroush

The dump command takes a group argument
for the group of atoms to dump out. If you create
a group that has only your initial time=0 atoms, then
when you dump them, atoms added later will not
be in the file. (assuming you didn't add them to the same
group).

Steve