Hi all, compute cluster Ncell cluster/atom 2.5 compute Nchunk Ncell chunk/atom c_cluster compress yes nchunk once ids once I have small doubt whether c_Nchunk really was calculated only once. My data shows that it may be recalculated at every timestep, according to c_ cluster which is also recalculated at each timestep. Have you ever encountered a similar problem? Welcome to le…