Abstract: The innate coarse-grained management of grid computing leads to inflexible structure, which brings about much inconvenience and inhibits a broader application of grid computing. With the virtual organization concept, this paper proposes a dynamic virtual organization management scheme which provides fine-grained project management to solve this problem. This scheme manages grid projects as different virtual organizations and controls user access according to membership relations in virtual organizations. Above the Globus grid system, the paper develops a dynamic virtual organization management system. It also gives a case to demonstrate the effectiveness of this scheme for fine-grained dynamic management of multiple grid systems.

Key words: grid computing, virtual organization, dynamic management systems, Globus

摘要： 网格计算粗粒度的管理方式导致的网格体系僵化带来了诸多不便，成为网格计算在科研领域更深入应用的阻碍。采用虚拟组织的思想，提出了动态虚拟组织管理方案来针对网格计算项目进行细粒度管理。该方案按照虚拟组织的方式管理多个网格计算项目，以虚拟组织成员关系控制用户访问的权限，使得虚拟组织的构成更加灵活。针对Globus网格平台设计了动态虚拟组织管理系统，实际应用表明该系统实现了细粒度的多网格管理，证明了动态虚拟组织管理方案的有效性。

关键词: 网格计算, 虚拟组织, 动态管理系统, Globus