[lammps-users] about lost atoms!

Dear support, I try to simulate a system composed by:

  1. top atoms
  2. middle atoms
  3. bottom atoms
    All the atoms interact via LJ potential, I move only top and middle atoms via fix nve command while bottom atoms are keept fixed.
    After some time steps, and depending from temperature, the bottom atom lost atoms; the error message is:

ERROR: Lost atoms: original 819 current 675

but the atoms 819 belong to bottom group and so the position are not updated via fix nve command.

Regard.

N.

Figure out what atom(s) were lost and why, viz should help.

Steve

2009/3/24 Steve Plimpton <[email protected]>

Figure out what atom(s) were lost and why, viz should help.

The atom lost is the last, I don’t know why because I do not update the positions of this atom.
What is viz?

N.

Hi Nicola,

I guess you’ve misunderstood the meaning of the error message.
The error message:
ERROR: Lost atoms: original 819 current 675
means that there are 819 atoms in total in your system originally,
but now only 675 of them exist.

L. Wan

2009/3/24 nicola varini <nicola.varini@…24…>

viz - should be the short for “visualization”, which means
that you can use some kind of visualization tool to
see what happened in your system.
For viz tools, see http://lammps.sandia.gov/other.html

2009/3/25 nicola varini <nicola.varini@…24…>