Application-Level Energy Awareness for OpenMP
Contribuinte(s) |
Terboven, C. de Supinski, B. R. Reble, P. Chapman, B. M. Muller, M. S. |
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Data(s) |
26/11/2015
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Resumo |
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. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer International Publishing Switzerland |
Direitos |
info:eu-repo/semantics/openAccess |
Fonte |
Alessi , F , Thoman , P , Georgakoudis , G , Fahringer , T & Nikolopoulos , D S 2015 , Application-Level Energy Awareness for OpenMP . in C Terboven , B R de Supinski , P Reble , B M Chapman & M S Muller (eds) , OpenMP: Heterogenous Execution and Data Movements: 11th International Workshop on OpenMP, IWOMP 2015 Proceedings . vol. 9342 , Lecture Notes in Computer Science , vol. 9342 , Springer International Publishing Switzerland , pp. 219-232 , 11th International Workshop on OpenMP, IWOMP 2015 , Aachen , Germany , 1-2 October . DOI: 10.1007/978-3-319-24595-9 16 |
Tipo |
contributionToPeriodical |
Formato |
application/pdf |