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Hofmann, Johannes ; Hager, Georg ; Fey, Dietmar:
On the Accuracy and Usefulness of Analytic Energy Models for Contemporary Multicore Processors.
In: Yokota, Rio ; Weiland, Michèle ; Keyes, David ; Trinitis, Carsten
(Hrsg.):
High Performance Computing. -
Cham
: Springer
,
2018
. - S. 22-43
ISBN 978-3-319-92040-5
DOI: https://doi.org/10.1007/978-3-319-92040-5_2
Abstract
This paper presents refinements to the execution-cache-memory performance model and a previously published power model for multicore processors. The combination of both enables a very accurate prediction of performance and energy consumption of contemporary multicore processors as a function of relevant parameters such as number of active cores as well as core and Uncore frequencies. Model validation is performed on Intel Sandy Bridge-EP, Broadwell-EP, and AMD Epyc processors. Production-related variations in chip quality are demonstrated through a statistical analysis of the fit parameters obtained on one hundred Broadwell-EP CPUs of the same model. Insights from the models are used to explain the performance- and energy-related behavior of the processors for scalable as well as saturating (i.e., memory-bound) codes. In the process we demonstrate the models' capability to identify optimal operating points with respect to highest performance, lowest energy-to-solution, and lowest energy-delay product and identify a set of best practices for energy-efficient execution.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik > Lehrstuhl Angewandte Informatik II > Lehrstuhl Angewandte Informatik II - Univ.-Prof. Dr. Thomas Rauber Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik > Lehrstuhl Angewandte Informatik II |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 000 Informatik,Informationswissenschaft, allgemeine Werke > 004 Informatik |
| Eingestellt am: | 10 Aug 2021 12:27 |
| Letzte Änderung: | 10 Aug 2021 12:27 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/66754 |