Neuware -In an effort to reduce the energy consumption of high performance computing centers, one approach is to switch hardware to lower power states in promising parallel application phases. But statically switching the power saving mechanisms increases the application runtime. As a consequence, no energy can be saved. Contrary to static switching strategies, dynamic switching strategies consider the hardware usage in the application phases to switch between the different modes without increasing the application runtime. This book designs and evaluates tool extensions for power consumption measurement in parallel systems with the final goal to characterize and identify energy-efficiency hot spots in scientific applications. Using an energy-efficiency benchmark for parallel systems, typical hardware usage pattern are identified to characterize the workload, the impact on the node power consumption and finally the potential for energy saving. The significant power and energy-saving potential led to the design of a software interface for the efficient management of the power saving modes per compute node to be exploited by application programmers.Books on Demand GmbH, �berseering 33, 22297 Hamburg 196 pp. Englisch.

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Bibliografische Details

Titel: Power Consumption Measurement in Parallel Systems
Verlag: S�dwestdeutscher Verlag F�r Hochschulschriften M�r 2014
Erscheinungsjahr: 2014
Sprache: Englisch
ISBN-10: 3838137949
ISBN-13: 9783838137940
Einband: Taschenbuch
Zustand: Neu

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In an effort to reduce the energy consumption of high performance computing centers, one approach is to switch hardware to lower power states in promising parallel application phases. But statically switching the power saving mechanisms increases the application runtime. As a consequence, no energy can be saved. Contrary to static switching strategies, dynamic switching strategies consider the hardware usage in the application phases to switch between the different modes without increasing the application runtime. This book designs and evaluates tool extensions for power consumption measurement in parallel systems with the final goal to characterize and identify energy-efficiency hot spots in scientific applications. Using an energy-efficiency benchmark for parallel systems, typical hardware usage pattern are identified to characterize the workload, the impact on the node power consumption and finally the potential for energy saving. The significant power and energy-saving potential led to the design of a software interface for the efficient management of the power saving modes per compute node to be exploited by application programmers.

�ber die Autorin bzw. den Autor

Timo Minartz received his PhD in June 2013 from the University of Hamburg. His major research interests are high-performance computing and energy efficiency. He received his MSc degree at the University of Heidelberg in 2009 where he started to work in the field of High Performance Computing.

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