| Presentation | 2012-01-20 Associativity-Variable Cache to Adaptively Expand Operating Voltage Margin Jinwook JUNG, Yohei NAKATA, Shunsuke OKUMURA, Hiroshi KAWAGUCHI, Masahiko Yoshimoto, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a dependable cache memory for which associativity can be reconfigured dynamically. The proposed associativity-reconfigurable cache consists of pairs of cache ways. The proposed cache can dynamically enhance its reliability in the dependable mode, thereby trading off its performance. The reliability of the proposed cache can be scaled by reconfiguring its associativity. Moreover, the configuration can be chosen based upon current operating conditions. Our chip measurement results show that the proposed dependable cache possesses the scalable characteristic of reliability. Moreover, it can decrease the minimum operating voltage by 115 mV. The cycle accurate simulation shows that designing the L1, L2 caches using the proposed scheme results in 4.93% IPC loss on average. Area estimation results show that the proposed cache adds area overhead of 1.91% and 5.57% in 32-KB and 256-KB caches, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cache / SRAM / Reliability / Variable associativity |
| Paper # | ICD2011-139 |
| Date of Issue |
| Conference Information | |
| Committee | ICD |
|---|---|
| Conference Date | 2012/1/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Associativity-Variable Cache to Adaptively Expand Operating Voltage Margin |
| Sub Title (in English) | |
| Keyword(1) | Cache |
| Keyword(2) | SRAM |
| Keyword(3) | Reliability |
| Keyword(4) | Variable associativity |
| 1st Author's Name | Jinwook JUNG |
| 1st Author's Affiliation | Graduate School of System Informatics, Kobe University() |
| 2nd Author's Name | Yohei NAKATA |
| 2nd Author's Affiliation | Graduate School of System Informatics, Kobe University |
| 3rd Author's Name | Shunsuke OKUMURA |
| 3rd Author's Affiliation | Graduate School of System Informatics, Kobe University |
| 4th Author's Name | Hiroshi KAWAGUCHI |
| 4th Author's Affiliation | Graduate School of System Informatics, Kobe University |
| 5th Author's Name | Masahiko Yoshimoto |
| 5th Author's Affiliation | Japan Science and Technology Agency CREST |
| Date | 2012-01-20 |
| Paper # | ICD2011-139 |
| Volume (vol) | vol.111 |
| Number (no) | 388 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |