DATE: Thursday, January 17, 2013
TIME: Noon - 1:00 pm
PLACE: ISTC Panther Hollow Conference Room, Suite 410, 4th Floor, RM CIC Building

SPEAKER: Julien Bourgeois, Visiting Professor, Carnegie Mellon University

TITLE: Network-of-SSD (NoSSD): A Scalable and High-Performance Communication Design Paradigm for SSDs

In recent years, flash memory solid state disks (SSDs) have shown a great potential to change storage infrastructure because of its advantages of high speed and high throughput random access. This promising storage, however, greatly suffers from performance loss because of frequent "erase-before-write" and "garbage collection" operations. Thus, novel circuit-level, architectural, and algorithmic techniques are currently explored to address these limitations. In parallel with others, the current study investigates replacing shared buses in multi-channel architecture of SSDs with an interconnection network to achieve scalable, high throughput, and reliable SSD storage systems. Roughly speaking, such a communication scheme provides superior parallelism that allows us to compensate the main part of the performance loss related to the aforementioned limitations through increasing data storage and retrieval processing throughput.

Julien Bourgeois is a professor of computer science at the University of Franche-Comté (UFC) in France and a visiting professor at Carnegie Mellon University for 2012/2013. He is part of the FEMTO-ST Institute (UMR CNRS 6174) where he leads the complex networks team. His research interests are in distributed intelligent MEMS, P2P networks and security management for complex networks. He has been an invited professor at Emory University (US) in 2011 and in Hong Kong Polytechnic University in 2010 and 2011. He has also worked in the Centre for Parallel Computing at the University of Westminster (UK) and in the main research institution in Italy, the Consiglio Nazionale delle Richerche (CNR) in Genova. He has collaborated with several other institutions (Lawrence Livermore National Lab, Oak Ridge National Lab, Carnegie Mellon University, etc.). He is a member of more than 10 program committees of international conferences on these topics and has organized many events (dMEMS 2010, 2012, HotP2P co-located with IEEE/ACM IPDPS 2010, Euromicro PDP 2008 and 2010, IEEE GreenCom 2012, IEEE iThings 2012 and IEEE CPSCom 2012 and GPC 2012). Apart from his research activities, he acts as a consultant for the French government and for other companies.

Greg Ganger

Please contact Julien if you are interested in meeting with him.

Karen Lindenfelser, 86716, or visit