题目: Fine-Grained Multi-Resource Scheduling in Cloud Datacenters

时间:2014年8月27日上午10点

地点:东五楼210

Abtract: Cloud datacenters typically require tenants to specify the resource demands for the virtual machines (VMs) they create using a set of pre-defined, fixed configurations, to ease the resource allocation problem. Unfortunately, this leads to low resource utilization of cloud datacenters as tenants are obligated to conservatively predict the maximum resource demand of their applications. Examining a typical publicly available cluster data center trace, we observe that a large number of jobs are short; only a small proportion of jobs are long and which require substantial compute or memory resources. We propose an optimization based approach that exploits this division between the short and long jobs to dynamically allocate a cloud datacenter's resources to achieve significantly better utilization by increasing the number of jobs accommodated by the datacenter. Using trace-driven simulations we show that the overall revenue for the cloud provider can be improved by 30% over the traditional static VM resource allocation. This is joint work with Yuan Zhang (Uni Go"ttingen) and K. K. Ramakrishnan (UC Riverside, USA).

bio:

Xiaoming Fu obtained his Ph.D. degree in Computer Science from Tsinghua University, China in 2000. He worked as a research staff at Technical University Berlin before joining the University of Go"ttingen in 2002, where he has been a Professor and heading the Computer Networks Group < http://www.net.informatik.uni-goettingen.de/> since 2007. His research areas include architecture, protocols and applications of Internet-based communication systems. He has been involved in EC FP6 ENABLE, MING-T, VIDIOS, Daidalos-II projects and is coordinator of FP7 GreenICN, MobileCloud and CleanSky projects. He is an IEEE Senior Member, an ACM Member and an IEEE Distinguished Lecturer. He served as Secretary (2008-2010) and Vice Chair (2010-2012) of IEEE ComSoc TCCC, then Chair (2011-2013) of the Internet Technical Committee of the IEEE ComSoc and the Internet Society. Currently he serves on the editorial boards of IEEE Communications Magazine, TNSM, Elsevier ComNet and ComCom journals.