Seminars & Colloquia

Jayadev Misra

Computer Science, University of Texas at Austin

"Structured Wide-Area Programming"

Monday September 08, 2008 04:00 PM
Location: 3211, EB2 NCSU Centennial Campus
(Visitor parking instructions)

This talk is part of the Triangle Computer Science Distinguished Lecturer Series



Internet today provides a wide range of services associated with web sites; examples include getting a stock quote, making an airline reservation, compressing a file or inverting a matrix. Each service may be likened to a basic operation in a computer, the internet computer. An application is a program written over the basic services, i.e., an orchestration of the services. This research is directed toward designing, implementing and studying an appropriate model of orchestration that would allow us to develop wide-area applications succinctly.


Just as structured programming gave programmers effective tools to organize the control flow of sequential programs, our research introduces mechanisms to organize the communication, synchronization and coordination in programs that run on wide-area networks. We have

developed a programming model, called Orc, for structured wide-area programming. Orc includes constructs to orchestrate the concurrent invocation of services to achieve a goal -- while managing time-outs, priorities, and failure of sites or communication. The talk will give an introduction to Orc, and some of the ongoing research on enhancing the model.


The Orc web page is at

Short Bio:

Jayadev Misra is a professor and holder of the Schlumberger Centennial chair in Computer Sciences at the University of Texas at Austin. He has been the past editor of several journals including: Computing Surveys, Journal of the ACM, Information Processing Letters and the Formal Aspects of Computing. He is the author of two books, 'Parallel Program Design: A Foundation', Addison-Wesley, 1988, co-authored with Mani Chandy, and 'A Discipline of Multiprogramming', Springer-Verlag, 2001. Misra is a fellow of ACM and IEEE; he held the Guggenheim fellowship during 1988-1989. He was the Strachey lecturer at Oxford University in 1996, and he held the Belgian FNRS International Chair of Computer Science in 1990.

Misra's research interests are in the area of concurrent programming, with emphasis on rigorous methods to improve the programming process. He is currently spear-heading an effort, jointly with Tony Hoare, to establish a grand challenge project to automate large-scale program verification.

Host: Munindar Singh, NCSU, Computer Science

To access the video of this talk, click here.

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