Towards Portable Message Passing in Java: Binding MPI

In this paper we present a way of successfully tackling the diiculties of binding MPI to Java with a view to ensuring portability. We have created a tool for automatically binding existing native C libraries to Java, and have applied the Java{to{C Interface generating tool (JCI) to bind MPI to Java. The approach of automatic binding by JCI ensures both portability across diierent platforms and full compatibility with the MPI speciication. To evaluate the resulting combination we have run a Java version of the NAS parallel IS benchmark on a distributed{memory IBM SP2 machine.