Haibao Chen is currently working toward the PhD degree in Service Computing Technology and System Lab (SCTS) and Cluster and Grid Lab (CGCL) at Huazhong University of Science and Technology, China. He is also with the Big Data and Cloud Lab, School of Computer and informarion engineering, Chuzhou University, China. His research inter- ests include parallel and distributed computing, virtualization, and resource scheduling on cloud computing. E-mail: wusong@hust.edu.cn,Song Wu is a professor of computer sci- ence and engineering at Huazhong Univer- sity of Science and Technology (HUST), China. He received his PhD from HUST in 2003. His current research interests in- clude cloud computing, system virtualiza- tion, datacenter management, storage sys- tem, in-memory computing and so on. Hal Jin received the PhD degree in com- puter engineering from Huazhong Univer- sity of Science and Technology, China in 1994. He is the chief scientists of National 973 Basic Research Program Project of Vir- tualization Technology of Computing Sys- tem, and Cloud Security. His research inter- ests include computer architecture, virtual-ization technology, cluster computing and cloud computing, peer- to-peer computing, network storage, and network security. Wenguang Chen received the BS and PhD degrees in computer science from Tsinghua University, China in 1995 and 2000 re- spectively. He is a professor in Department of Computer Science and Technology, Ts- inghua University. His research interest is in parallel and distributed computing, and programming model. Jidong Zhai received his Phl) degree from Tsinghua University, China in 2010. He is an assistant professor at the Depart- ment of Computer Science and Technology, Tsinghua University, China. His research focuses on high performance computing, especially performance analysis and opti- mization for large-scale parallel applica-tions and performance evaluation for computer systems. Yingwei Luo received his BS degree from Zhejiang University, China in 1993, and