基于资源目录技术的网格系统软件设计与实现

由于网格计算系统中地理分布着大量不同类型动态实体，资源、服务和计算的发现、特征化、监控变得非常困难，资源信息服务成为网格软件的关键技术之一。采用面向对象方法设计网格资源信息模型，使用目录服务技术建造网格系统软件中的资源信息服务，提供了资源信息发现、收集、存储和访问机制，介绍了国家高性能计算环境的基本结构和功能，详细描述了基于轻权目录访问协议（LDAP）的网格系统软件的设计和实现。

DESIGN AND IMPLEMENTATION OF RESOURCE DIRECTORY IN NATIONAL HIGH PERFORMANCE COMPUTING ENVIRONMENT

The discovery, characterization, and monitoring of resources, services, and computations can be challenging due to the considerable diversity, large numbers, dynamic behavior, and geographical distribution of the entities in grid computing systems. Hence, resource information services are a vital part of any grid software. A grid resource information model is designed in object-oriented way, and directory service is used to implement resource information service of grid system software (called GridWare), providing fundamental mechanisms for discovering, monitoring, collecting, storing and accessing information. The fundamental structure and function of national high performance computing environment is introduced in this paper. Then, the design and implementation of GridWare based on LDAP is discussed in detail.