| Presentation | 2008-04-23 A Lightweight Write Error Detection for Register-file Using Improved Passive WAB Hidetsugu IRIE, Ken SUGIMOTO, Ryota SHIOYA, Kenichi WATANABE, Masahiro GOSHIMA, Shuichi SAKAI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, it has been getting inefficient to design microprocessors with worst-case margins because of increasing process and temperature variability. Thus, microarchitectural techniques which dynamically detect and recover from timing-errors have come to be researched. Previously, we have focused on timing-errors in register-file writing, and have proposed the technique named active WAB and passive WAB. In this paper, we will reduce the overhead of passive WAB. Focusing on physical registers which are never read, we propose "pop on release" and "pop on flush", and introduce them into passive WAB. Simulation result showed that the number of stall cycles and additional register reads are significantly reduced this modification. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microarchitecture / dependability / timing-error / process variation |
| Paper # | CPSY2008-3,DC2008-3 |
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| Conference Information | |
| Committee | DC |
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| Conference Date | 2008/4/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Dependable Computing (DC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Lightweight Write Error Detection for Register-file Using Improved Passive WAB |
| Sub Title (in English) | |
| Keyword(1) | microarchitecture |
| Keyword(2) | dependability |
| Keyword(3) | timing-error |
| Keyword(4) | process variation |
| 1st Author's Name | Hidetsugu IRIE |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo() |
| 2nd Author's Name | Ken SUGIMOTO |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| 3rd Author's Name | Ryota SHIOYA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| 4th Author's Name | Kenichi WATANABE |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo:(Present office)Hitachi, Ltd. |
| 5th Author's Name | Masahiro GOSHIMA |
| 5th Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| 6th Author's Name | Shuichi SAKAI |
| 6th Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| Date | 2008-04-23 |
| Paper # | CPSY2008-3,DC2008-3 |
| Volume (vol) | vol.108 |
| Number (no) | 15 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |