计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (1): 9-9.

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基于OGSA的网格服务管理模型研究

郭立文;杨扬;翟正利   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-01-01 发布日期:2007-01-01

Study on Grid service management model based on OGSA

  • Received:1900-01-01 Revised:1900-01-01 Online:2007-01-01 Published:2007-01-01

摘要: 网格服务管理是网格计算的核心问题。通过对于目前网格服务管理体系架构的三种模型进行分析和比较,基于开放式服务体系架构(OGSA),探讨了网格服务管理系统的功能需求,进而设计了一种层次化的网格服务管理模型HGSM,描述了模型的工作流程。将网格服务管理分为任务分解、静态调度和动态调度三种层次,讨论了HGSM的各个层次的相关功能模块,以有向无环图和高级随机Petri网分别对于任务分解和服务调度提出了相关算法,算法中的可实施谓词、随机开关、实施速率等描述可以直接在SPN求解软件的编程中实现,从而为构造一种层次化的网格服务管理模型提供一个可实现的有效途径。

关键词: 网格服务, 高级随机Petri网, OGSA

Abstract: Grid service management is the core issue of Grid Computing. Through analyzing and comparing three kinds of Grid service management architecture, functionality requirements were presented. Based on Open Grid Service Architecture (OGSA), a hierarchical Grid service management (HGSM) was proposed, working flow of the model was described. Grid service management is divided into three hierarchies: task decomposing, static scheduling and dynamic scheduling and related functional module of each hierarchy is discussed. Algorithms for task decomposing and service scheduling are proposed by using directed acyclic graph and high level stochastic Petri net. The firing predicative, stochastic switch and firing rate can be directly implemented in Stochastic Petri Net software. This provides an effective way for Grid service management model.

Key words: Grid service, High Level Stochastic Petri Net, Open Grid Service Architecture