Authors:
Jayant DeSouza and L. V. Kale
Parallel Programming Laboratory, Department of Computer Science, University of Illinois at Urbana-Champaign

Proceedings of the 2003 Workshop on Java in Computational Science, held in conjunction with the International Conference on Computational Science (ICCS 2003), June 2-4, 2003, Melbourne, Australia, and Saint Petersburg, Russian Federation.

We present Jade, a Java-like language with parallel message-driven features. The parallel constructs include parallel classes called Chares and parallel arrays of objects called ChareArrays. Communication with a parallel object occurs through asynchronous method invocation. In the message-driven paradigm, when a method of a Chare or ChareArray is invoked, it continues to completion before any other method of the same parallel object can run. In contrast to Java's run-time compilation, the Jade source code is translated to Charm++ source code, which is then compiled and executed on the target machine. The resulting code supports object migration and load-balancing and scales well to large number of processors. Java's standard libraries are not supported.

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