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Tools and methods for measuring and tuning the energy efficiency of HPC systems

Tools and methods for measuring and tuning the energy efficiency of HPC systems Energy costs nowadays represent a significant share of the total costs of ownership of High Performance Computing (HPC) systems. In this paper we provide an overview on different aspects of energy efficiency measurement and optimization. This includes metrics that define energy efficiency and a description of common power and energy measurement tools. We discuss performance measurement and analysis suites that use these tools and provide users the possibility to analyze energy efficiency weaknesses in their code. We also demonstrate how the obtained power and performance data can be used to locate inefficient resource usage or to create a model to predict optimal operation points. We further present interfaces in these suites that allow an automated tuning for energy efficiency and how these interfaces are used. We finally discuss how a hard power limit will change our view on energy efficient HPC in the future. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Scientific Programming IOS Press

Tools and methods for measuring and tuning the energy efficiency of HPC systems

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References (53)

Publisher
IOS Press
Copyright
Copyright © 2014 by IOS Press, Inc
ISSN
1058-9244
eISSN
1875-919X
DOI
10.3233/SPR-140393
Publisher site
See Article on Publisher Site

Abstract

Energy costs nowadays represent a significant share of the total costs of ownership of High Performance Computing (HPC) systems. In this paper we provide an overview on different aspects of energy efficiency measurement and optimization. This includes metrics that define energy efficiency and a description of common power and energy measurement tools. We discuss performance measurement and analysis suites that use these tools and provide users the possibility to analyze energy efficiency weaknesses in their code. We also demonstrate how the obtained power and performance data can be used to locate inefficient resource usage or to create a model to predict optimal operation points. We further present interfaces in these suites that allow an automated tuning for energy efficiency and how these interfaces are used. We finally discuss how a hard power limit will change our view on energy efficient HPC in the future.

Journal

Scientific ProgrammingIOS Press

Published: Jan 1, 2014

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