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文中介绍了ＰＪＶＭ（ｐａｒａｌｅｌＪａｖａｖｉｒｔｕａｌｍａｃｈｉｎｅ）系统的组成及主要特点，讨论了如何扩充Ｊａｖａ的对象库，解决异构环境下进行并行分布处理出现的多进程或多线程存取共享变量的同步、分布式共享存储管理等问题．并通过几个实例说明了系统提供的多种编程接口和多种计算模式是可行的，从而为Ｊａｖａ应用开辟了新的领域，为在异构广域网络上实现超大问题的大规模分布并行处理奠定了基础．
This paper introduces the composition and main features of the PJVM (paralelJavavirtualmachine) system, discusses how to extend the Java object library to solve the problem of multi-process or multi-thread access to shared variables for parallel distributed processing in heterogeneous environment, distributed shared storage Management and other issues. And through several examples, it is feasible to provide a variety of programming interfaces and multiple computing modes provided by the system, thus opening up new fields for Java applications and laying the foundation for large-scale parallel processing of large-scale problems in heterogeneous wide area networks The foundation.