SEMINAR


David E. Keyes

Director, Center for Computational Science and 
Richard F. Barry Professor of Mathematics and Statistics, 
Old Dominion University

Monday, March 4, 2002

3:35-4:35 p.m., 214 Ayres Hall 
(preceded by reception and refreshments at 
3:00 p.m. in 119 Ayres Hall)

Domain Decomposition in the Mainstream 
of Computational Science

Abstract:  Over the past two decades, domain decomposition has grown from an 
elegant mathematical technique to the dominant paradigm of large-scale scientific 
simulation for systems governed by partial differential equations. Two major 
families of domain decomposition methods -- Newton-Krylov-Schwarz and FETI-
DP -- have been scalably employed on the ASCI platforms of the U.S. Department 
of Energy for mechanics problems, up to several thousand processors.

One of the many scientific software projects intent on "packaging" the fruits of 
research in domain decomposition methods for mainstream computational scientists 
is a five-year, nine-institution "Terascale Optimal PDE Simulations Integrated 
Software Infrastructure Center," a component of DOE's new Scientific Discovery 
through Advanced Computing (SciDAC) initiative. The speaker, who serves as the 
TOPS project lead, will review the current algorithmic state of the art, outline the 
philosophy and goals of the center, and highlight some of the research challenges 
ahead, in algorithms and in software.