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Parallel numerical linear algebra

Published online by Cambridge University Press:  07 November 2008

James W. Demmel
Affiliation:
Computer Science Division and Mathematics DepartmentUniversity of California at BerkeleyBerkeley, CA 94720USA E-mail: demmel@cs.berkeley.edu
Michael T. Heath
Affiliation:
Department of Computer Science and National Center for Supercomputing ApplicationsUniversity of IllinoisUrbana, IL 61801USA E-mail: heath@ncsa.uiuc.edu
Henk A. van der Vorst
Affiliation:
Mathematical InstituteUtrecht UniversityUtrecht, The Netherlands E-mail: vorst@math.ruu.nl

Abstract

We survey general techniques and open problems in numerical linear algebra on parallel architectures. We first discuss basic principles of paralled processing, describing the costs of basic operations on parallel machines, including general principles for constructing efficient algorithms. We illustrate these principles using current architectures and software systems, and by showing how one would implement matrix multiplication. Then, we present direct and iterative algorithms for solving linear systems of equations, linear least squares problems, the symmetric eigenvalue problem, the nonsymmetric eigenvalue problem, and the singular value decomposition. We consider dense, band and sparse matrices.

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 1993

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