BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN VERSION:1.0 BEGIN:VEVENT DTSTART:20111117T013000Z DTEND:20111117T030000Z LOCATION:TCC LL5 DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Power consumption will become a major concern for future generation supercomputers. Current systems consume more than a Megawatt per Petaflop. Exascale levels of computation, a 100x improvement in performance from today, will be significantly constrained if power requirements were to similarly scale. The optimization of power and energy at all levels, from application to system software and to hardware, is required. =0A=0AThis BOF will discuss state-of-the-art tools and techniques for observing and optimizing power consumption. These are often limited by hardware capabilities and in their ability to associate measurements with software. Additionally, control mechanisms such as Dynamic-Voltage-Frequency-Scaling are often limited. =0A=0AThe challenges ahead are many-fold. Increasing parallelism, memory systems, interconnection networks, storage and uncertainties in programming models all add to the complexities. More rapid realization of energy savings will require significant increases in measurement resolution and optimization techniques. The interplay between performance, power, and reliability also leads to complex trade-offs. SUMMARY:Energy Efficiency at Extreme Scales: Tools and Challenges PRIORITY:3 END:VEVENT END:VCALENDAR