Feasibility of PACX–MPI for use in a Cluster–of–Clusters Environment

There are several existing concepts and solutions that are intended for coupling several parallel computers in means of running a single MPI application on top of them. PACX–MPI [1] is one of them that relies on existing MPI libraries on the respective machines. This paper discusses several facts and aspects for using PACX–MPI in an Cluster–of–Clusters (CoC) environment.