[lammps-users] ERROR: Lost atoms: original 4200 current 4198


  I recently had a similar problem and that was because some of my atoms had
moved more than 500 boxes. So check the image tags in the dump file and if ix/iy
/iz have crossed the number 500 (or 512, I am not sure) then LAMMPS will give
that error.


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Gaurav Pranami

Graduate Student
Chemical Engineering Dept.
Iowa State University

All that happens when an atom moves more than 512 boxes is that
the image flag wraps around from +512 to -512 (or vice versa). This
won't thrown an error or cause any other problem, other than for
a couple of fixes (like fix rigid or the diagnostics of fix msd).