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Erschienen in:
PAGANtec: OpenMP Parallel Error Correction for Next-Generation Sequencing Data Kapitel lesen Erstes Kapitel lesen

2015 | OriginalPaper | Buchkapitel

Application-Level Energy Awareness for OpenMP

verfasst von : Ferdinando Alessi, Peter Thoman, Giorgis Georgakoudis, Thomas Fahringer, Dimitrios S. Nikolopoulos

Erschienen in: OpenMP: Heterogenous Execution and Data Movements

Verlag: Springer International Publishing

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Abstract

Power, and consequently energy, has recently attained first-class system resource status, on par with conventional metrics such as CPU time. To reduce energy consumption, many hardware- and OS-level solutions have been investigated. However, application-level information - which can provide the system with valuable insights unattainable otherwise - was only considered in a handful of cases. We introduce OpenMPE, an extension to OpenMP designed for power management. OpenMP is the de-facto standard for programming parallel shared memory systems, but does not yet provide any support for power control. Our extension exposes (i) per-region multi-objective optimization hints and (ii) application-level adaptation parameters, in order to create energy-saving opportunities for the whole system stack. We have implemented OpenMPE support in a compiler and runtime system, and empirically evaluated its performance on two architectures, mobile and desktop. Our results demonstrate the effectiveness of OpenMPE with geometric mean energy savings across 9 use cases of 15 % while maintaining full quality of service.

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Vorheriges Kapitel OpenMP 4.0 Device Support in the OMPi Compiler
Nächstes Kapitel Evaluating the Energy Consumption of OpenMP Applications on Haswell Processors
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Metadaten
Titel
Application-Level Energy Awareness for OpenMP
verfasst von
Ferdinando Alessi
Peter Thoman
Giorgis Georgakoudis
Thomas Fahringer
Dimitrios S. Nikolopoulos
Copyright-Jahr
2015
Buch
OpenMP: Heterogenous Execution and Data Movements

Print ISBN: 978-3-319-24594-2

Electronic ISBN: 978-3-319-24595-9

Copyright-Jahr: 2015

DOI
https://doi.org/10.1007/978-3-319-24595-9_16

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