摘要
网格计算成为当前业界研究的热点,网格工作流能够方便地构建、执行、管理和监控网格应用,使得网格应用能够自动、高效地实施。由于网格的动态性、分布性、异构性和自治性导致传统工作流的一些方法和技术不能有效地处理网格环境中的有关问题。本文首先比较了网格工作流与传统工作流的不同,指出了网格工作流研究的必要性,然后介绍了当前网格工作流研究的现状,归纳了三种网络工作流规范及四种网格工作流系统。最后,给出了网格工作流研究存在的问题及研究方向。
Grid computing has become a hot point in the research area. Grid workflow can conveniently construct, execute, manage and monitor grid applications, and automate grid applications with great efficiency. Due to the dynamism, distribution, heterogeneity and autonomy of grid applications, conventional workflow technology can＇t effective- ly solve the relative problems of grid environment. In this paper, first we compare the difference between the grid workflow and the conventional workflow which illustrates that it is necessary to study the grid workflow. Then we summarize the specifications and systems of the grid workflow. At last we point the problems and directions of the grid workflow study.
出处
《计算机科学》
CSCD
北大核心
2005年第11期11-15,共5页
Computer Science
基金
国家自然科学基金(No.60473062)
国家863项目(No.2002AA114010)
