Oct. 11, 2004
"System X: Building the Virginia Tech Supercomputer",
Dr. Srinidhi Varadarajan, Director Terascale Computing Facility
System X was conceived in March 2003, designed in July 2003 and by October it had
achieved a sustained performance of 10.28 Teraflops, making it the third fastest
supercomputer in the world today. System X has several novel features. First, it is based
on an Apple G5 platform with the new IBM PowerPC 970 64-bit CPUs. Secondly, it uses
a high performance switched communications fabric called Infiniband. Finally, System X
is cooled by a hybrid liquid-air cooling system.
Srinidhi Varadarajan received his Ph.D. in Computer Science from the State University of New York, Stony Brook in 2000. He presently serves as the Director of the Terascale Computing Facility at Virginia Tech and as an Assistant Professor in the Department of Computer Science. Dr. Varadarajan is the recipient of the ComputerWorld Honors Award in the Science Category 2004, a CAREER award from the National Science Foundation, the Egg Factory Technology Innovation award and a Faculty Fellow award from the College of Engineering, Virginia Tech.
Oct. 12, 2004
"Impact of on-line Gaming on Networking"
“Status of Next Generation Cellular and Wireless Local Area Network Services and Current Research Activities”
Dr. Mohsen Guizani, IEEE/TCCC/Western
With the rapidly growing demands for cellular/wireless communication systems, new types of user’s applications are emerging. These applications of mixed traffic of voice, data, and real time audio/video have challenged the current Third Generation service providers to respond with new generation of system specifications capable of providing increased data throughput. The next generation cellular/wireless communication systems need not only to provide a higher data throughput but also to support integrated applications with various Quality of Service (QoS) requirements. Providing QoS control for the emerging Multimedia Wireless Generation (MWG) is a challenging task, due to the time varying and nonstationary wireless links. Being different from wired communication networks, providing QoS in the form of absolute guarantee may not be possible with current technologies.
In this talk, we will review the current status of cellular/wireless systems in the US and point out its deficiencies. We then will suggest some solutions based on our current research activities at Western Michigan University.
is currently a Professor and the Chair of the Computer Science Department
at Western Michigan University. He received his B.S. (with distinction)
and M.S. degrees in Electrical Engineering; M.S. and Ph.D. degrees in
Computer Engineering in 1984, 1986, 1987, and 1990, respectively, from
Syracuse University, Syracuse, New York.
research interests include Computer
Networks, Wireless Communications and Computing, and Optical Networking.
He currently serves on the editorial boards of six technical Journals and
the Founder and EIC of “Wireless Communications and Mobile Computing”
Journal published by John Wiley (http://www.interscience.wiley.com/jpages/1530-8669/).
He is the author of four books and in the process of writing the fifth. He
guest edited a number of special issues in Journals and Magazines
including the Journal of Selected Areas in Communications and
Communication Society Magazine. He also served as member, Chair, and
General Chair of a number of conferences, including the General Chair of
IEEE VTC. He has more than 130 publications in refereed journals and
Guizani received both the Best Teaching Award and the Excellence in
Research Award from the University of Missouri-Columbia in 1999. He won
the best Research Award from KFUPM in 1995 (a university wide competition).
He was selected as the Best Teaching Assistant for two consecutive years
at Syracuse University, 1988 and 1989.
Oct. 13, 2004
"Self-Organization of Wireless Networks: The New Frontier"
The size of the internet will increase with the mainstream adoption of the broadband