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High Performance Computing Academic Research Network (HPC-net): Lecture of Prof. Ahmed H. Sameh

  • Contact informationProf. Efthymios Housosemail:housos AT ece.upatras.gr
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24.06.2011, Conference and Cultural Center of University of Patras

HPC-net talk Fri June 24th, 13:00, University of Patras Conference Center

Towards Scalable Parallel Sparse Matrix Computations

Ahmed H. Sameh

Department of Computer Science Purdue University,U.S.A.

Abstract

Designing large-scale sparse linear system and symmetric eigenvalue problem solvers capable of achieving high parallel scalability on computing platforms with thousands of cores is a challenging task.In this talk we present:

A hybrid sparse linear system solver that is more scalable than current parallel direct sparse solvers and more robust than approximate LU-factorization, or algebraic multigrid-preconditioned Krylov subspace methods, and a symmetric eigenvalue problem solver for obtaining a few eigenpairs based on trace minimization.

Numerical experiments illustrate the robustness and parallel scalability of these solvers for a variety of computational science and engineering applications.

Ahmed Sameh is the Samuel D. Conte Professor of Computer Science at Purdue University. His research interests include numerical linear algebra, and the design and performance analysis of parallel numerical algorithms needed in various science and engineering applications. He has served on the editorial boards of: IEEE Transactions on Computers, Computing, SIAM Journal on Scientific and Statistical Computing, Parallel Computing, Journal of Parallel and Distributed Computing, Computer Physics Communications, International Journal of High Speed Computing, Numerical Linear Algebra with Applications, and International Journal of Parallel Programming. He was also the founding editor in chief of the IEEE Computing in Science and Engineering Magazine.

Professor Sameh joined Purdue in 1997 where he served as Head of Computer Science until 2002. Before that he was head of computer science at the University of Minnesota, Minneapolis, and the holder of the William Norris Chair for Large-Scale Computing. He was also a faculty member in the Department of Computer Science at the University of Illinois at Urbana-Champaign, from 1968 to 1991, and 1992-93. During his tenure at Illinois, he served as an associate director, and director, of the Center for Supercomputing Research and Development (CSRD).

Professor Sameh is a Fellow of ACM, IEEE, SIAM and the AAAS. In 1999 he was the recipient of the IEEE 1999 Harry Goode Award for "seminal and influential work in parallel numerical algorithms."

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