【作者】 巫小蓉；

【导师】 朱珍民；

【作者基本信息】 湘潭大学 ， 计算机软件与理论， 2002， 硕士

【摘要】 并行计算是解决大规模科学计算的有效方法。随着计算机技术和网络技术的不断发展，人们已越来越倾向于用网络计算机机群代替巨型机来进行并行计算。在网络发展的同时，分布性、可操作性和异构性也已经成为了现代网络环境的显著特征。为了有效的在异构环境中进行通信，需要屏蔽不同体系结构计算机之间的异构性。为了简化网络程序设计和实现基于组件的软件体系，分布式对象技术得到了人们的关注。本文深入了解分析了分布式并行虚拟平台的研究现状，提出了一种面向对象的分布式并行虚拟平台CJPVM，它采用目前流行的中间件CORBA来实现，以JAVA为开发语言，目的在于支持异构环境下的并行计算，使其不受现在网络异构性的限制，为将来进一步能在Internet网上进行并行处理奠定基础。在第二章中，我们提出了CJPVM的基本框架；在第三章中，我们则详细介绍了CJPVM的系统消息处理以及监护进程；在第四章中，我们对CJPVM基于CORBA的消息传递机制的实现做了介绍；在第五章中，我们提出了一个动态负载均衡的任务调度算法；最后一章作了实验验证，总结了CJPVM的特点，并对以后的工作进行展望。更多还原

【Abstract】 Massive scientific computation needs parallel computation. With the development of the computer technology and network technology, computer cluster based-network has been preferred rather than parallel machines when doing parallel computation. And at the same time, distribution, inter-operation and heterogeneity have become the features of today’s network. In order to communicate between different nodes of network, we should get away the heterogeneity. To simplify the network programming and implement the software system based on the groupware, the distributed object has drawn the attention of people.In this paper, we analyze the today’s research situation and provide a Object-Oriented distributed parallel virtual platform——CJPVM, which employs popular middleware CORBA and uses JAVA language, aiming at supporting parallel computation in heterogeneous network and getting rid of the restriction of network heterogeneity and making the foundation of further parallel computation in Internet. In chapter 2, we provide the basic construction of CJPVM. In chapter 3, we describe the system message procession and the Daemon. In chapter 4, we introduce the CJPVM’s message-passing model based on CORBA. In chapter 5, we provide a load-balanced task scheduling method. And finally, we verify the platform by experiments, summarize the features of the CJPVM and outlook the future work.更多还原