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[lammps-users] Increasing atom-ID when implementing "fix gcmc"
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[lammps-users] Increasing atom-ID when implementing "fix gcmc"

From: Dingbin Huang <dingbinhuang@...24...>
Date: Sat, 16 Dec 2017 18:07:22 +0800

Hi LAMMPS mailing lists,

I used "fix gcmc" to control the density of system and used "compute cluster/atoms" & "dump" to output the cluster-ID of each atom. However, I encountered a problem: the cluster-ID and atom-ID keep increasing when implementing "fix gcmc", therefore, the cluster-ID was too big to be displayed completely (like 1.09374e+006 rather than 1093742 ) after about 5 000 000 steps.

I suppose the reason is the atom-ID arranged to a new atom inserted by "fix gcmc" is always bigger than the biggest atom-ID of existing atoms. Is there any way to avoid the increase of atom-ID when implementing "fix gcmc"? 

The software I used is "LAMMPS 64-bit 20160629".

Dingbin Huang

Shanghai Jiao Tong University