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P2P-based data system for the EAST experiment

2006; Institute of Electrical and Electronics Engineers; Volume: 53; Issue: 3 Linguagem: Inglês

10.1109/tns.2006.874100

1558-1578

Yantai Shu, Liang Zhang, Weifeng Zhao, Haiming Chen, Jiarong Luo,

Peer-to-Peer Network Technologies

A peer-to-peer (P2P)-based EAST Data System is being designed to provide data acquisition and analysis support for the EAST superconducting tokamak. Instead of transferring data to the servers, all collected data are stored in the data acquisition subsystems locally and the PC clients can access the raw data directly using the P2P architecture. Both online and offline systems are based on Napster-like P2P architecture. This allows the peer (PC) to act both as a client and as a server. A simulation-based method and a steady-state operational analysis technique are used for performance evaluation. These analyses show that the P2P technique can significantly reduce the completion time of raw data display and real-time processing on the online system, and raise the workload capacity and reduce the delay on the offline system.