Lost atoms

Hello LAMMPS community,

I’m trying to simulate Argon fluid, but my script has already resulted in Lost Atoms error even in the equilibration phase. I have tried to see the geometry setup, double checked my units but couldn’t see anything wrong.

I’m posting the script below. Would anyone please take a look at let me know what I have done wrong here? I’m sure I miss something but I couldn’t see what it is. Any input is greatly appreciated!

Anh Tran
PhD student
Georgia Institute of Technology