The Best Cluster Arrangement

[Julius]

Hello WRF user,

I'm modeling ARW-WRF in a Beowulf Cluster with this type of machines:
Each node is an Intel Xeon E5520 (8M cache, 2.26 GHz, 4 cores) - 4GB of memory

I'd like to know which's the best arrangement or some tips that I have following in order to improve the performance.

If I use 4 nodes (4 machines * 4 cores ), Will I divide my domain in 16 parts?