Institute of Computer Languages
Compilers and Languages Group
Talks 2015 - Sid Touati
Der Arbeitsbereich für Programmiersprachen und Übersetzer am Institut
für Computersprachen lädt zu folgendem Vortrag ein:
Prof. Dr. Sid Touati
University Nice Sophia Antipolis, France
Parametric and Non-parametric Statistics for Code Performance Analysis and Comparison
||Montag, den 27. April 2015
||15:00 Uhr s.t. *)
||TU Wien, Bibliothek E185.1, Argentinierstr. 8, 4. Stock (Mitte).
*)Tee: 14:30 Uhr in der Bibliothek E185.1, Argentinierstr. 8, 4. Stock (Mitte).
When observing program performances in practice, one could be faced to
non-negligible variations, even if program input is fixed. When
considering multiple code versions issued from many program
transformation chains, it is not easy to select the best code version
in presence of these performance variations.
In this seminar, we will tackle some rigorous statistical methods for
selecting a practically most efficient code by choosing appropriate
metrics of performances. We will recall some basis on statistical
testing, the most popular ones, and explain why they could not be
always helpful. Then we show a parametric approach for performance
analysis and comparison and explain its difference with a
non-parametric one. This seminar is devoted to people willing to use
rigorous statistics to take cautious decisions to declare if a program
is more efficient than others.
This research effort has been conducted with Julien Worms, an
associate professor in mathematics at University of Versailles Saint
Quentin en Yvelines.
Kurzbiographie von Sid Touati
Sid Touati is a professor at University Nice Sophia Antipolis in
France (faculty of science). He was a former associate professor at
the University of Versailles Saint-Quentin en Yvelines. His research
interests include formal and technical methods for code optimization
and analysis for high performance and embedded processors, compilation
and code generation, parallelism, statistics and code performance
optimization. He has got a habilitation thesis on backend code
optimization, a PhD thesis on register optimization and a master
diploma in computer science. His research activities are conducted in
"Institut National de Recherche en Informatique et Automatisme
(INRIA)" as well as in "Centre National de Recherche Scientifique
(CNRS)". He is the main author of the book Advanced Backend Code
Optimization (ISTE, Wiley, 2014).
( http://www-sop.inria.fr/members/Sid.Touati )
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