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A three step blind approach for improving HPC systems' energy performance

Tsafack Chetsa, Ghislain Landry and Lefèvre, Laurent and Stolf, Patricia A three step blind approach for improving HPC systems' energy performance. (2014) Concurrency and Computation, 26 (15). 2612-2629. ISSN 1532-0626

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Official URL: http://dx.doi.org/10.1002/cpe.3312

Abstract

Nowadays, there is no doubt that energy consumption has become a limiting factor in the design and operation of high performance computing (HPC) systems. This is evidenced by the rise of efforts both from the academia and the industry to reduce the energy consumption of those systems. Unlike hardware solutions, software initiatives targeting HPC systems’ energy consumption reduction despite their effectiveness are often limited for reasons including: (1) the program specific nature of the solution proposed; (2) the need of deep understanding of applications at hand; (3) proposed solutions are often difficult to use by novices and/or are designed for single task environments. This paper propose a three step blind system-wide, application independent, fine-grain, and easy to use (user friendly) methodology for improving energy performance of HPC systems. The ethodology typically breaks into phase detection, phase characterization, and phase identifycation and system reconfiguration. And it is blind in the sense that it does not require any knowledge from users. It relies upon reconfigurable capabilities offered by the majority of HPC subsystems – including the processor, storage, memory, and communication subsystems – to reduce the overall energy consumption of the system (excluding network equipments) at runtime. We also present an implementation of our methodology through which we demonstrate its effectiveness via static analyses and experiments using benchmarks representative of HPC workloads.

Item Type:Article
Additional Information:Thanks to Wiley editor. The definitive version is available at http://onlinelibrary.wiley.com The original PDF of the article can be found at Concurrency and Computation website : http://onlinelibrary.wiley.com/doi/10.1002/cpe.3312/epdf
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Normale Supérieure de Lyon - ENS de Lyon (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche en Informatique et en Automatique - INRIA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:12 Mar 2015 10:33

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