[lammps-users] difference between comm and reverse_com

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1

Dear Steve and LAMMPS users,

Could you explaine what is the difference between comm_compute and
reverse_com_compute?
Which of them I should use to get atom-tag information about ghost atoms?

Doese global numeration of atom exist?
Does ghost atom numeration in list->firstneigh correspond to global
numeration of atoms?

Maybe you recomend some published papers.

Sincerely Yours,
Alexander Vorontsov

2

Forward comm sends info from real atoms to ghost atoms.
Reverse comm does the inverse. Ghost atoms already
have atom-tag info, so you shouldn't need to do it again.
Atoms do have a global ID. Indices stored in neighbor
lists are local indices, not global.

Steve