Scientists with Berkeley Lab’s Center for Computational Science and the Engineering, and Environmental Energy Technologies Division, have created unique three-dimensional, time-dependent simulations of turbulent V-flames to gain a better understanding of combustion.
NERSC provides researchers funded by the Department of Energy's Office of Science with a unique high performance computing resource. My main effort is directed towards the NERSC mission, providing NERSC's user with excellent computing facilities and service, while advancing the state-of-art of computational science.
Sparse matrix algorithms for eigenvalue problems (based on the Lanczos algorithm) and for sparse linear systems (both direct solvers and preconditioned iterative solvers) have kept me busy since my thesis work in 1982. (The image of the sparse matrix above is one that I collected for my thesis, and which is now in the Harwell-Boeing Collection).
I continue to be involved in a number of benchmarking and performance evaluation projects. I am a regular contributor to the TOP500 reports.
Recursive Spectral Bisection (RSB) has probably been my main algorithmic contribution to the body of knowledge in parallel algorithms. I continue to investigate applications of spectral algorithms to fintie element applications, CFD, and sparse matrix algorithms. Right now I am mainly interested in spectral methods for dynamic load balancing of unstructured CFD computations.
Most of my algorithm work is directly related to scientific applications on high performance architecture. In the past I have worked with structural mechanics, reservoir simulation, physics, and fluid dynamics applications. Currently at NERSC I am interested in applications of eigenvalue techniques to computational chemistry and biology.
There are several journals for which I serve as an editor or managing editor. There are always at least one or two conferences, where I am on an organizing, steering, or technical committee.
CS267 is a one-semester graduate class in Applications of Parallel Computers. I had the pleasure of teaching this class jointly with Professor James Demmel at University of California, Berkeley, California during Fall of 2002.
The 40 Tflop/s Earth Simulator System: Its Impact on the Future Development of Supercomputing, Panel Discussion at SC02, Baltimore, Maryland., November 2002.
Interview on High Performance Computing Strategies in the United States, Supercomputing Online, April 28, 2003.
Der Earth Simulator hat uns aufgeweckt, interview in Spektrum der Wissenschaft (in German), pp. 674 - 675, July 2003.
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Here are some events that I will attend and participate in during the next year.
These are good opporutnities to meet with me.
12/10 -12/12, 2005, HPC User's Meeting, London, UK
2/11 - 2/17, 2006, Algorithms for Petascale Computers, Schloss Dagstuhl Seminar Germany
2/22 -2/25, 2006, SIAM Conference on Parallel Processing for Scientific Computing, San Francisco, CA
3/6 - 3/9, 2006, SOS Workshop, Maui, HI
4/25 - 4/29, 2006, IPDPS 2006, Rhodes, Greece.
6/26 - 27, 2006, ZIB Berlin Scientific Board Meeting, Berlin, Germany
