一种实用、高效的虚拟远程超级计算环境  

A Practical and Effective Virtual Remote Supercomputing Environment

作　　者：谢非[1] 杨广文[1] 鞠大鹏[1] 王鼎兴[1] 郑纬民[1] 

机构地区：[1]清华大学计算机科学与技术系,北京100084

出　　处：《软件学报》2002年第8期1481-1487,共7页Journal of Software

基　　金：~~国家自然科学基金资助项目(60173007);国家高技术研究发展计划资助项目(2001AA111080)

摘　　要：远程计算是指用户在本地计算机上通过互联网利用远程超级计算机上计算资源的技术.传统的远程计算方式是用户通过telnet协议登录到远程机器上完成各项任务.这种方式在高速、稳定的网络环境下效率是很高的.但是当网络条件比较差时,如在低带宽、不稳定的网络上,这种方式会严重影响用户的工作效率.提出并实现了一个远程虚拟计算环境,它所采用的计算方式可有效完成在低带宽、不稳定的网络环境下效率较低甚至无法完成的远程计算,其中使用了如检查点设置/恢复、压缩传送、目录树传送等技术以达到尽量减少网络流量的目的.实践证明,这在我国当前的网络条件下是一种高效的远程计算方法.Remote computing means that the users on local machine make use of computing resources on remote super computers through the Internet. The traditional remote computing method is logging onto the remote machines by using telnet protocol to accomplish all kinds of work. This method is efficient in a high-speed and stable networking environment. But when the network is in a low-bandwidth and unstable condition, this method will seriously influent the users?work efficiency. A computing method called remote virtual computing is presented which is suitable for low-bandwidth and unstable networks. It uses the technologies such as check-point setting/recovering, compressing directory tree transferring to furthest reduce the network flux. The practice proves that this is an efficient remote computing method under the present network condition in China.

关 键 词：虚拟远程超级计算环境 远程计算 虚拟计算 广域网 计算机网络 

分 类 号：TP393.2[自动化与计算机技术—计算机应用技术]