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Books > Computing & IT > Internet > Network computers
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Energy-Efficient High Performance Computing - Measurement and Tuning (Paperback, 2013 ed.)
Loot Price: R1,408
Discovery Miles 14 080
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Energy-Efficient High Performance Computing - Measurement and Tuning (Paperback, 2013 ed.)
Series: SpringerBriefs in Computer Science
Expected to ship within 10 - 15 working days
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Total price: R1,418
Discovery Miles: 14 180
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In this work, the unique power measurement capabilities of the Cray
XT architecture were exploited to gain an understanding of power
and energy use, and the effects of tuning both CPU and network
bandwidth. Modifications were made to deterministically halt cores
when idle. Additionally, capabilities were added to alter operating
P-state. At the application level, an understanding of the power
requirements of a range of important DOE/NNSA production scientific
computing applications running at large scale is gained by
simultaneously collecting current and voltage measurements on the
hosting nodes. The effects of both CPU and network bandwidth tuning
are examined, and energy savings opportunities without impact on
run-time performance are demonstrated. This research suggests that
next-generation large-scale platforms should not only approach CPU
frequency scaling differently, but could also benefit from the
capability to tune other platform components to achieve more
energy-efficient performance.
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