SIMUTools'09

About Francesco Quaglia's Keynote

Thusday, March 5th 2009, 9:00 - 10:00

Supports for Transparent Optimistic Synchronization in the High-Level-Architecture Interoperability Standard
More About Francesco...	Francesco Quaglia - Universita` di Roma - La Sapienza, Italy. Associate Professor, School of Engineering
	Abstract: It is recognized that speculative (optimistic) execution is an effective technique for high performance simulation systems. On the other hand, building simulation platforms/applications comprising speculation is a non-trivial task, due to the need for including supports for undo (rollback) operations inside the software architecture. In this talk, we report our experience in the field of optimistic synchronization in the context of the High-Level-Architecture (HLA) interoperability standard (:cell PQA(PSS(IEEE 1516):). Our efforts have focused on the definition of a framework for the systematic treatment of speculation so as to allow complete transparency to application level programmers. Two significant outcomes of this work were: (i) A simplification of the HLA programming model, where the application level programmer is no longer in charge of interoperability services specifically oriented to speculation. (ii) The possibility to select at start-up time, or even at run-time, the most suitable synchronization scheme depending on features of the specific computing platform; importantly, this is done independently of the nature (speculative or not) of the application level software.
Bio: Francesco Quaglia received the Laurea degree (MS level) in Electronic Engineering in 1995 and the PhD degree in Computer Engineering in 1999 from the University of Rome ``La Sapienza. From summer 1999 to summer 2000 he held an appointment as a Researcher at the Italian National Research Council (CNR). Since January 2005 he has been an Associate Professor at the School of Engineering of the University of Rome ``La Sapienza, where he previously worked as an Assistant Professor from September 2000 to December 2004. His research interests include distributed systems, parallel computing, parallel/distributed simulation, federated simulation systems, fault-tolerant programming, middleware platforms, Web-based systems/infrastructures, and computer systems modeling and optimization. He has served as Program Co-Chair of ACM PADS 2002, as Program Co-Chair of IEEE NCA 2007, and as General Chair of ACM PADS 2008. He leads the Parallel and Distributed Computing research group at the Department of Computer Engineering at the University of Rome ``La Sapienza".

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