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P2P-based data system for the EAST experiment

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5 Author(s)
Yantai Shu ; Dept. of Comput. Sci., Tianjin Univ., China ; Liang Zhang ; Weifeng Zhao ; Haiming Chen
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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.

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Nuclear Science, IEEE Transactions on  (Volume:53 ,  Issue: 3 )