4Vaquero L,Roderc-Marino L,Caceres J,et al.A break in the clouds : towards a cloud definition [J ].SIGCOMM Co mputerCommunication Review, 2009,39(1) : 50-55.
5Buyya R, Yeo C S, Venugopal S.Market-oriented cloud computing: Vision, hype, and reality for delivering it services as computing utilities [C].Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid.2009.1.
4Vouk M A, Sills E, Dreher P. Integration of High-Per- formance Computing into Cloud Computing Services [ M ]// Handbook of Cloud Computing, 2010:255-276.
5Vouk M A, Rindos A, Averitt S F, et al. Using VCL tech- nology to implement distributed reconfigurable data centers and computational services for educational institutions [ J ]. IBM Journal of Research and Dvedopmeut, 2009,53 (4) :509-526.
6Mladen Vouk, Sam Averitt, Michael Bugaev, et al. "Pow- ered by VCL"-Using virtual computing laboratory(VCL) technology to power cloud computing [ C ]// Proceedings of the 2nd International Conference on Virtual Computing. 2008 : 1-10.
7S.ehaffer H E, Averitt S F, Hoit M I, et al. NCSU' s virtu- al computing lab : A cloud computing solution [ J ]. Com- puter, 2009,42 ( 7 ) : 94-97.
8Stein S R, Schaffer H E. Cloud with a long tail: The VCL in support of pedagogy [ J ]. Educause Review, 2010,45 (3) :10-11.
9Averitt S, Bugaev M, Peeler A, et al. Virtual computing laboratory (VCL) [ C ]// Proceedings of the International Conference on Virtual Computing Initiative 2007. 2007:1- 16.