Abstract

We describe the extensible Java preprocessor EPP and a data-parallel extension of Java implemented with EPP. EPP can be extended by incorporating EPP plugins. These plugins are programmed with the Ld-2 language that we also describe. Tiny Data-Parallel Java is an example of EPP plugin. High portability is guaranteed because the translated code and the runtime systems are pure Java code. Applications can be executed in parallel if the VM interpreter supports parallel execution of Java threads. We provide a preliminary performance evaluation of this system. 1 Introduction The Java language [GJG96] has recently become very popular among programmers. Java has socket and thread libraries which can be used on various platforms. In the near future, many JAVA VM (virtual machine) interpreters will support shared-memory multiprocessing and will then become a better platform for parallel programming. However, Java lacks facilities for language extension, which have been adopted by other object-...

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