Presentation 2007/7/26
Heterogeneous Functional Units for High Speed Fault-tolerant Execution Stage
YOUSUKE Nakamura, KEI Hiraki,
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Abstract(in English) Future excessive thinner process rules raises fault risk from defects and diffused faults. High speed and area effective fault-tolerant execution stage is difficult to implement because Functional Units (FU) do not have highly regulared structure. It is difficult to meet them by using a simple duplication of these FUs. We propose Heterogeneous Functional Units (HFU), which uses the combination of fast Functional Units (FU) and fault-tolerant FUs. HFU improves high speed performance for area effective fault-tolerant execution stage. By using HFU, area effective fault-tolerant execution stage is able to have high speed performance. Simulation result from SPEC2000 benchmarks shows that HFU has 99%, 94.2% speed performance compared to the simple fast execution stage, that is faster than 84.0% speed performance of the simple fault-tolerant execution stage.
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Keyword(in English) fault-tolerance / superscalar procesor / execution stage / high speed / permanent faults
Paper # DC2007-9
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Committee DC
Conference Date 2007/7/26(1days)
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Paper Information
Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Heterogeneous Functional Units for High Speed Fault-tolerant Execution Stage
Sub Title (in English)
Keyword(1) fault-tolerance
Keyword(2) superscalar procesor
Keyword(3) execution stage
Keyword(4) high speed
Keyword(5) permanent faults
1st Author's Name YOUSUKE Nakamura
1st Author's Affiliation Graduate School of Information Science and Technology()
2nd Author's Name KEI Hiraki
2nd Author's Affiliation Graduate School of Information Science and Technology
Date 2007/7/26
Paper # DC2007-9
Volume (vol) vol.107
Number (no) 174
Page pp.pp.-
#Pages 6
Date of Issue