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000138004 0247_ $$2doi$$a10.1007/s00450-013-0245-5
000138004 037__ $$aFZJ-2013-04289
000138004 082__ $$a004
000138004 1001_ $$0P:(DE-Juel1)132163$$aKnobloch, Michael$$b0$$eCorresponding author$$ufzj
000138004 245__ $$aMapping fine-grained power measurements to HPC application runtime characteristics on IBM POWER7
000138004 260__ $$aBerlin$$bSpringer$$c2014
000138004 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1406541154_29473
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000138004 520__ $$aOptimization of energy consumption is a key issue for future HPC. Evaluation of energy consumption requires a fine-grained power measurement. Additional useful information is obtained when performing these measurements at component level. In this paper we describe a setup which allows to perform fine-grained power measurements up to a 1 ms resolution at component level on IBM POWER (IBM and POWER are trademarks of IBM in USA and/or other countries.) machines. We further developed a plug-in for VampirTrace that allows us to correlate these power measurements with application performance characteristics, e.g. obtained by hardware performance counters. This environment enables us to generate both power and performance profiles. Such profiles provide valuable input to develop future strategies for improving workload-driven energy usage per performance. We show in comparison with power profiles of coarser granularity that these fine-grained measurements are necessary to capture the dynamics of power switching.
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000138004 536__ $$0G:(DE-HGF)POF2-411$$a411 - Computational Science and Mathematical Methods (POF2-411)$$cPOF2-411$$fPOF II$$x1
000138004 536__ $$0G:(DE-Juel-1)ATMLPP$$aATMLPP - ATML Parallel Performance (ATMLPP)$$cATMLPP$$x2
000138004 7001_ $$0P:(DE-Juel1)136752$$aFoszczynski, Maciej$$b1$$ufzj
000138004 7001_ $$0P:(DE-Juel1)132142$$aHomberg, Wilhelm$$b2$$ufzj
000138004 7001_ $$0P:(DE-Juel1)144441$$aPleiter, Dirk$$b3$$ufzj
000138004 7001_ $$0P:(DE-HGF)0$$aBöttiger, Hans$$b4
000138004 773__ $$0PERI:(DE-600)2410154-0$$a10.1007/s00450-013-0245-5$$n3-4$$p211-219$$tComputer science - research and development$$v29$$x1865-2034$$y2014
000138004 8564_ $$uhttps://juser.fz-juelich.de/record/138004/files/FZJ-2013-04289.pdf$$yRestricted
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000138004 9141_ $$y2014
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