Constructing an OGSA-based grid computing platform

Grid is a promising computing platform that integrates resources from different organizations in a shared, coordinated and collaborative manner to solve large-scale science and engineering problems. Recently Grid technologies are evolving towards an Open Grid Services Architecture (OGSA). The OGSA provides a uniform service-oriented architecture and integrates Grid technologies with emerging Web services standards. We are constructing a Grid computing platform based on the OGSA. This platform provides Grid services such as directory service, scheduling services and execution management services to support the execution of various Grid applications. Each Grid service in this platform is viewed as a Web service, and all these services are seamlessly integrated together to form a Grid computing environment. This paper describes the basic requirements and initial design of the architecture of this Grid computing platform, including the essential components of the platform, the key Grid services provided, as well as how these components and services are integrated. The implementation issues of this OGSA-based Grid computing platform are also discussed