Implementing Energy Parsimonious Circuits through Inexact Designs

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dc.contributor.advisorPalem, Krishna V.
dc.creatorLingamneni, Avinash
dc.date.accessioned2013-03-08T00:36:01Z
dc.date.available2013-03-08T00:36:01Z
dc.date.issued2011
dc.description.abstractInexact Circuits or circuits in which accuracy of the output can be traded for cost (energy, delay and/or area) savings, have been receiving increasing attention of late due to invariable inaccuracies in nanometer-scale circuits and a concomitant growing desire for ultra low energy embedded systems. Most of the previous approaches to realize inexact circuits relied on scaling of circuit-level operational parameters (such as supply voltage) to achieve the cost and accuracy tradeoffs, and suffered from serious drawbacks of significant implementation overheads that drastically reduced the gains. In this thesis, two novel architecture-level approaches called Probabilisttc Pruning and Probabilistic Logic Minimization are proposed to realize inexact circuits with zero overhead. Extensive simulations on various architectures of datapath elements and a prototype chip fabrication demonstrate that normalized gains as large as 2X-9.5X in Energy-Delay-Area product can be obtained for relative error as low as 10 -6 % - 1% compared to corresponding conventional correct designs.
dc.format.extent110 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS E.E. 2011 LINGAMNENI
dc.identifier.citationLingamneni, Avinash. "Implementing Energy Parsimonious Circuits through Inexact Designs." (2011) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/70323">https://hdl.handle.net/1911/70323</a>.
dc.identifier.digitalLingamneniAen_US
dc.identifier.urihttps://hdl.handle.net/1911/70323
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectApplied sciences
dc.subjectComputer engineering
dc.subjectElectrical engineering
dc.titleImplementing Energy Parsimonious Circuits through Inexact Designs
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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