| Presentation | 2023-07-06 Lifetime improvement of Memristor-based Hyperdimensional Computing Inference Accelerator by Error Detection and Built-in Self Repair Tetsuro Iwasaki, Michihiro Shintani, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The implementation of hyperdimensional computing in memristors is expected to realize a highly efficient inferencer for edge computing, which processes various cognitive tasks in a lightweight manner by mapping them onto hyperdimensional vectors of thousands to tens of thousands of dimensions. On the other hand, it has been pointed out that memristors have a long-term reliability issue compared to silicon materials, it is thus essential to design for high reliability. This paper proposes a design method for the memristor HDC inference accelerator to extend its lifetime. More specifically, we perform error detection and redundancy relief by replacing the detected faulty memristor cells with redundant cells by performing a normalized checksum of the hyper-dimensional vectors obtained by inference queries. We conducted numerical experiments to confirm the effectiveness of the proposed method using a language recognition task. The experimental results show that the proposed method can increase the device lifetime by 5 times while maintaining the recognition accuracy compared to the case where no reliability-aware design is applied. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hyperdimensional Computing / Memristor / Dependability-aware design / Built-in self repair |
| Paper # | CAS2023-5,VLD2023-5,SIP2023-21,MSS2023-5 |
| Date of Issue | 2023-06-29 (CAS, VLD, SIP, MSS) |
| Conference Information | |
| Committee | MSS / CAS / SIP / VLD |
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| Conference Date | 2023/7/6(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shingo Yamaguchi(Yamaguchi Univ.) / Yasutoshi Aibara(OmniVision) / Takayuki Nakachi(Ryukyu Univ.) / Shigetoshi Nakatake(Univ. of Kitakyushu) |
| Vice Chair | Toshiyuki Miyamoto(Osaka Inst. of Tech.) / Norihiko Shinomiya(Soka Univ.) / Koichi Ichige(Yokohama National Univ.) / Kiyoshi Nishikawa(okyo Metropolitan Univ.) / Yuichi Sakurai(Hitachi) |
| Secretary | Toshiyuki Miyamoto(Osaka Univ.) / Norihiko Shinomiya(NEC) / Koichi Ichige(Soka Univ.) / Kiyoshi Nishikawa(Renesas Electronics) / Yuichi Sakurai(Chiba Univ.) |
| Assistant | Masato Shirai(Shimane Univ.) / Nao Ito(NIT, Toyama college) / Motoi Yamaguchi(TECHNOPRO) / Shinji Shimoda(Sony Semiconductor Solutions) / Shunsuke Koshita(Hachinohe Inst. of Tech.) / Taichi Yoshida(UEC) / Sayaka Shiota(Tokyo Metropolitan Univ.) / Takuma Nishimoto(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Mathematical Systems Science and its Applications / Technical Committee on Circuits and Systems / Technical Committee on Signal Processing / Technical Committee on VLSI Design Technologies |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Lifetime improvement of Memristor-based Hyperdimensional Computing Inference Accelerator by Error Detection and Built-in Self Repair |
| Sub Title (in English) | |
| Keyword(1) | Hyperdimensional Computing |
| Keyword(2) | Memristor |
| Keyword(3) | Dependability-aware design |
| Keyword(4) | Built-in self repair |
| Keyword(5) | |
| 1st Author's Name | Tetsuro Iwasaki |
| 1st Author's Affiliation | Kyoto Institute of Technology(KIT) |
| 2nd Author's Name | Michihiro Shintani |
| 2nd Author's Affiliation | Kyoto Institute of Technology(KIT) |
| Date | 2023-07-06 |
| Paper # | CAS2023-5,VLD2023-5,SIP2023-21,MSS2023-5 |
| Volume (vol) | vol.123 |
| Number (no) | CAS-97,VLD-98,SIP-99,MSS-100 |
| Page | pp.pp.22-27(CAS), pp.22-27(VLD), pp.22-27(SIP), pp.22-27(MSS), |
| #Pages | 6 |
| Date of Issue | 2023-06-29 (CAS, VLD, SIP, MSS) |