Energy-Efficient Distributed Systems
Prof. Makoto Takizawa.
Seikei University, Japan
It is now critical to reduce the consumption of natural resources, especially petroleum to resolve air pollutions. Even in information systems, we have to reduce the total electrical power consumption. A cloud computing system is composed of a huge number of server computers like Google file systems. There are many discussions on how to reduce the total power consumption of servers, e.g. by turning off servers which are not required to execute requests from clients. A Peer-to-Peer (P2P) system is another type of information system which is composed of a huge number of peer computers where various types of applications are autonomously performed. In this talk, I would like to discuss how to reduce the total electric energy consumption of types of distributed systems, i.e. computers interconnected in networks. We consider two types of distributed applications, transaction-based and communication-based applications. In the transaction-based applications, CPU resources are mainly consumed like Web applications. On the other hand, in the communication-based applications, a large volume of data is transmitted in the network like file transfer applications. Based on the experimental studies of computers and networks, we would like to discuss models which show how much electric power is consumed in distributed systems for types of applications. Finally, we would like to discuss how to allocate processes/requests to computers so that not only some requirements (like time constraint) are satisfied but also the total electric power consumption is minimized.
Prof. Makoto Takizawa received his B.E., M.E. in Applied Physics and D.E. in Computer Science from Tohoku University, Japan, in 1973, 1975, and 1983, respectively. He is currently a professor in the Department of Computer and Information Science, Seikei University since April of 2008. He was a visiting professor at GMD-IPSI (currently Fraunhofer), Germany (1989-1990) and at Keele University, England (1990). He is also a visiting professor of Xidian University, X'ian, China since 2004. He joined JIPDEC (Japan Information Processing Center) in 1975 and developed a heterogeneous distributed system JDDBS. He joined Tokyo Denki University in 1986. He is a Board of Governors (BOG) from 2003 to 2008 and a Golden Core member of IEEE Computer Society (CS). He is a member of advisory member of TCDP of IEEE CS. He is a fellow of Information Processing Society of Japan (IPSJ). He was a member of executive board of IPSJ from 1999 to 2001 and chaired a SIGDPS of IPSJ from 1997 to 200.
Prof. Takizawa is the founder and Steering Committee Chair of IEEE International Conference on Advanced Information Networking and Applications (AINA). He is also the Steering Committee Co-Chair of International Conference on Network-Based Information Systems (NBiS). He was a general co-chair and a program co-chair of IEEE ICDCS (International Conference on Distributed Computing Systems) in 2002 and 1998, respectively. He also chairs many international conferences like IEEE ISORC, ICPADS, and DEXA. He won the best paper awards at ICOIN-9 (1994), ICOIN-18 (1998), ICPADS (1996), DMS (2001), ICPADS2005 (2005), BWCCA(2007), and CISIS(2008), and excellent paper award at AINA-2004. He also won the JNTO (http://www.jnto.go.jp/) Best International Convention Awards 2008 for contribution to the community development. His research interests include distributed systems, group communications, distributed objects, fault-tolerant systems, and information security.