A Scalable Framework for CAS e-Science and Its Prototype

Zhou Yuanchun

Authors: Zhou Yuanchun, Xiao Yun, WU Kaichao, Yan Baoping
Computer Network Information Center, Chinese Academy of Sciences, Beijing, China

 

Based on the small world model of CAS e-Science and the power low of Internet, this paper presents a scalable CAS e-Science Grid framework based on virtual region called Virtual Region Grid Framework (VRGF). VRGF takes virtual region and layer as logic manage-unit. In VRGF, the mode of intra-virtual region is pure P2P, and the model of inter-virtual region is centralized. Therefore, VRGF is decentralized framework with some P2P properties. Further more, VRGF is able to achieve satisfactory performance on resource organizing and locating at a small cost, and is well adapted to the complicated and dynamic features of scientific collaborations. We have implemented a demonstration VRGF based Grid prototype—SDG.