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Automatically exploiting implicit parallelism in Java

✍ Scribed by Bik, Aart J. C.; Gannon, Dennis B.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 287 KB
Volume: 9
Category: Article
ISSN: 1040-3108
DOI: 10.1002/(sici)1096-9128(199706)9:6<579::aid-cpe309>3.0.co;2-g

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✦ Synopsis

In this paper we show how implicit parallelism in Java programs can be made explicit by a restructuring compiler using the multi-threading mechanism of the language. In particular, we focus on automatically exploiting implicit parallelism in loops and multi-way recursive methods. Expressing parallelism in Java itself clearly has the advantage that the transformed program remains portable. After compilation of the transformed Java program into byte-code, speedup can be obtained on any platform on which the Java byte-code interpreter supports the true parallel execution of threads. Moreover, we will see that the transformations presented in this paper only induce a slight overhead on uni-processors.

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