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Ten Years of Building Broken Chips: The Physics and Engineering of Inexact Computing

Ten Years of Building Broken Chips: The Physics and Engineering of Inexact Computing Ten Years of Building Broken Chips: The Physics and Engineering of Inexact Computing KRISHNA PALEM, Rice University and Nanyang Technological University AVINASH LINGAMNENI, Rice University and CSEM SA Well over a decade ago, many believed that an engine of growth driving the semiconductor and computing industries--captured nicely by Gordon Moore's remarkable prophecy (Moore's law)--was speeding towards a dangerous cliff-edge. Ranging from expressions of concern to doomsday scenarios, the exact time when serious hurdles would beset us varied quite a bit--some of the more optimistic warnings giving Moore's law until. Needless to say, a lot of people have spent time and effort with great success to find ways for substantially extending the time when we would encounter the dreaded cliff-edge, if not avoiding it altogether. Faced with this issue, we started approaching this in a decidedly different manner--one which suggested falling off the metaphorical cliff as a design choice, but in a controlled way. This resulted in devices that could switch and produce bits that are correct, namely of having the intended value, only with a probabilistic guarantee. As a result, the results could in fact be incorrect. Such devices and associated circuits and computing structures are now broadly http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Embedded Computing Systems (TECS) Association for Computing Machinery

Ten Years of Building Broken Chips: The Physics and Engineering of Inexact Computing

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References (73)

Publisher
Association for Computing Machinery
Copyright
Copyright © 2013 by ACM Inc.
ISSN
1539-9087
DOI
10.1145/2465787.2465789
Publisher site
See Article on Publisher Site

Abstract

Ten Years of Building Broken Chips: The Physics and Engineering of Inexact Computing KRISHNA PALEM, Rice University and Nanyang Technological University AVINASH LINGAMNENI, Rice University and CSEM SA Well over a decade ago, many believed that an engine of growth driving the semiconductor and computing industries--captured nicely by Gordon Moore's remarkable prophecy (Moore's law)--was speeding towards a dangerous cliff-edge. Ranging from expressions of concern to doomsday scenarios, the exact time when serious hurdles would beset us varied quite a bit--some of the more optimistic warnings giving Moore's law until. Needless to say, a lot of people have spent time and effort with great success to find ways for substantially extending the time when we would encounter the dreaded cliff-edge, if not avoiding it altogether. Faced with this issue, we started approaching this in a decidedly different manner--one which suggested falling off the metaphorical cliff as a design choice, but in a controlled way. This resulted in devices that could switch and produce bits that are correct, namely of having the intended value, only with a probabilistic guarantee. As a result, the results could in fact be incorrect. Such devices and associated circuits and computing structures are now broadly

Journal

ACM Transactions on Embedded Computing Systems (TECS)Association for Computing Machinery

Published: May 1, 2013

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