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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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Poster: Differentiating the BLAS
by
H. Martin Bücker
Aachen University of Technology
Coauthors: Paul D. Hovland (Argonne National Laboratory)

Primarily due to the deep memory hierarchies of today's microprocessors, straightforward implementations of simple loops in high-level programming languages such as Fortran, C, or C++ almost never achieve the processor's theoretical peak performance. From a conceptual point of view, computations based on simple loops are crucial for a differentiated version of the BLAS. The A0-poster presents some timing results obtained from preliminary hand-coded implementations of differentiated versions of some BLAS operations and discusses the process of automating the tedious task of optimizing this code for a particular architecture.

Date received: February 11, 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 Conferences Inc. Document # cads-74.