Show simple item record

dc.contributor.advisorYalamanchili, Sudhakar
dc.contributor.advisorWardi, Yorai
dc.contributor.authorAlmoosa, Nawaf I.
dc.date.accessioned2014-05-22T15:23:40Z
dc.date.available2014-05-22T15:23:40Z
dc.date.created2014-05
dc.date.issued2014-01-10
dc.date.submittedMay 2014
dc.identifier.urihttp://hdl.handle.net/1853/51805
dc.description.abstractThe shift to manycore architectures has highlighted the need for runtime power and performance management schemes to improve the reliability, performance, and energy-efficiency of processors. However, the design of management algorithms is challenging since power and performance are strongly dependent on the workload, which cannot be determined apriori and exhibit wide and rapid runtime variations. This dissertation seeks to show that sensitivity analysis (derivative estimation) provides runtime power and performance information that enables the design of adaptive and low-complexity management algorithms. The contributions of the dissertation include: 1) controllers that achieve rapid regulation of the power and throughput of processor cores, 2) a chip-level power control solution that maximizes the performance of manycore processors subject to the power constraints set by the cooling system, and 3) an iterative algorithm for optimizing the energy consumption of cache memories. The proposed algorithms use runtime derivative estimation to adapt to the rapid power and performance variations caused by workload, and their efficacy is demonstrated via formal analysis and simulation experiments.
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technology
dc.subjectComputer systems
dc.subjectSystems and control
dc.subject.lcshMultiprogramming (Electronic computers)
dc.subject.lcshAlgorithms
dc.titleSensitivity analysis for online management of processor power and performance
dc.typeDissertation
dc.description.degreePh.D.
dc.contributor.departmentElectrical and Computer Engineering
thesis.degree.levelDoctoral
dc.contributor.committeeMemberEgerstedt, Magnus
dc.contributor.committeeMemberSchwan, Karsten
dc.contributor.committeeMemberPande, Santosh
dc.contributor.committeeMemberMukhopadhyay, Saibal
dc.date.updated2014-05-22T15:23:40Z


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record