基于网格的虚拟组织协同模型及其任务调度  

A Cooperative Model of VO Based on Grid and Its Task Scheduling

作　　者：闫栋[1] 祁国 

机构地区：[1]宁浙江大学,杭州310027

出　　处：《中国机械工程》2005年第9期784-786,共3页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(60374057);国家 863 高技术研究发展计划资助项目(2003AA414310)

摘　　要：基于Web Services与网格技术,探讨了有利于协同服务的虚拟组织结构,构造了基于开放网格服务体系(OGSA)的虚拟组织成员实体模型和适应于网格技术的真正动态虚拟组织模型———含有广域调度服务中心的虚拟组织抽象模型;根据该抽象模型建立了基于OGSA的虚拟组织实际网络构造模型;提出了基于OGSA的虚拟组织内部协同服务的关键技术,即任务管理与调度问题,给出了一种既能满足网络服务需求又能降低服务成本的任务调度规则。Based on Web Services and grid technology,a structure of virtual organization(VO) in favor of co-operative services was studied,and an entity model of members of Grid-based VO and a really dynamic model of VO applicable to Grid Technology ──an abstract model of VO holding with wide world/region scheduling service center was constructed.According to this model,a practical network model of VO structure based on Open Grid Service Architecture (OGSA) was constructed;finally,a key technology of VO co-operative service was brought forward and solved,and rules of task scheduling satisfied with both network services required and the least service cost was brought forward.

关 键 词：网格 开放网格服务体系 虚拟组织 任务管理与调度 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]