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Improving Error-Resilience of Emerging Multi-Value Technologies
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication. (UART)
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication. (UART)
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication. (UART)
(English)Manuscript (preprint) (Other academic)
Abstract [en]

There exist extensive ongoing research efforts on emerging technologies that have the potential to become an alternative to today’s CMOS technologies. A common feature among the investigated technologies is that of multi- value devices and the possibility of implementing quaternary logic and memory. However, multi-value devices tend to be more sensitive to interferences and, thus, have reduced error resilience. We present an architecture based on multi-value devices where we can trade energy efficiency against error resilience. Important data are encoded in a more robust binary format while error tolerant data is encoded in a quaternary format. We show for eight benchmarks an energy reduction of 32% and 36% for the register file and level-one data cache, respectively, and for the two integer benchmarks, an energy reduction for arithmetic operations of 13% and 23%. We also show that for a quaternary technology to be viable it need to have a raw bit error rate of one error in 100 million or better.

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Computer Systems
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URN: urn:nbn:se:uu:diva-280026OAI: oai:DiVA.org:uu-280026DiVA: diva2:909551
Available from: 2016-03-07 Created: 2016-03-07 Last updated: 2016-05-04Bibliographically approved

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fulltext(244 kB)64 downloads
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Själander, MagnusBorgström, GustafKaxiras, Stefanos

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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