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AD 2000 - From Simulation to Optimization
June 19-23, 2000
INRIA Sophia Antipolis
Sophia Antipolis, France

Organizers
George Corliss, Christele Faure, Andre Galligo, Andreas Griewank, Laurent Hascoet, Uwe Naumann

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Parallelism and AD for Automatic Correction of Round-off Errors
by
Thierry Braconnier
universite de la Reunion
Coauthors: Philippe Langlois (Ecole Nationale Superieure de Lyon)

Automatic correction of round-off errors in floating point algorithms uses automatic differentiation in reverse mode and elementary errors computation. Parallelism the AD process is crucial to improve the performance of the codes that computes such corrections. Having investigate the performances of sequential version of codes written for automatic correction, we propose a method for computing the graph exploitation in a parallel way on distributed memory machines. Results and performances for linear algebra algorithms are given and discussed.

http://www.ens-lyon.fr/~plangloi/AD2000_2.htm

Date received: February 4, 2000

Copyright © 2000 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Mathematical Conference Abstracts. Document # cads-55.