If I want to do thermal conduction calculation for a group, say "all", should I add a "fix nvt" or "fix nve" command together with "fix thermal/conductivity"?
If so, which one should I use? "fix nvt" or "fix nve" or both works?
If "fix nvt" doesn't work, how can we calculate thermal conductivity at various temperatures?
Sorry if the questions are so naive. It may be, since I have searched the mailing-list archive and nobody has raised the same question.