Hi, I noticed that different number of processes generated different results. For instance, running atmospheric model (mesh is x1.2562) with a single Broadwell node on Pleiades (28 cores) generates results different from multiple Broadwell nodes (4 or 7 nodes in my tests). I don't think the difference is caused by the physics I added to the model since these physics parameterizations are all column models. I suspect this has something to do with advection or halo exchange (e.g., lateral exchange of information between mesh partitions) in the dynamical core.
Did anyone experience similar issues?
Thanks,
Yuan
Did anyone experience similar issues?
Thanks,
Yuan