CG

Dear all
My project is about simulation of gold by using coarse grains method so I need group my atomistic model that each of groups should contain 8 number of atoms
I read manual but I couldn’t find any command
I need your help
Do you know is there any code that group my model which each group contain special number of atoms?
Thanks for your help

Dear all
My project is about simulation of gold by using coarse grains method so I
need group my atomistic model that each of groups should contain 8 number
of atoms
I read manual but I couldn't find any command
I need your help
Do you know is there any code that group my model which each group contain
special number of atoms?

​this is not a LAMMPS question, but a question on how to do the science of
your project.​ that you can only learn from studying relevant publications,
interacting with people that have done this kind of work before, and
learning the procedure. in my personal opinion, it is probably best that
you *first* learn how to parameterize an all-atom model (which is far from
trivial). there are different approaches to do coarse-graining, so before
even looking into how to realize this, you'll have to research which of
those approaches is the most applicable for your case.

the LAMMPS manual is totally insufficient for this purpose, as its intent
is to explain the syntax of commands, not how to do research with them.

axel.