| Presentation | 2021-03-26 IPC control mechanism for highly efficient RT-DVFS Atsushi Santo, Nobuyuki Yamasaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Embedded real-time systems requires power consumption while satisfying real-time performance. RT-DVFS and real-time scheduling methods are applied respectively to guarantee performance. Responsive Multithreaded Processor (RMTP) is a Simultaneous Multithreading (SMT) processor for embedded real-time systems. It implements an IPC control mechanism that controls the execution speed of threads. By using the IPC control mechanism, Fluid schedule, which is an optimal scheduling algorithm, can be achieved with a very small overhead. By combining Fluid Schedule with the IPC control mechanism and RT-DVFS, it is possible to reduce power consumption while guaranteeing real-time performance. However, IPC control mechanism cannot extract Thread Level Parallelism (TLP) insufficiently, and resource utilization becomes poor. In this study, we propose a method for effectively extracting TLP to improve resource utilization during IPC control. It enables to operate the system at a lower frequency during RT-DVFS. As a result of evaluation by simulation, it was confirmed that the proposed method improves resource utilization and enables efficient reduction of power consumption. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | |
| Paper # | CPSY2020-65,DC2020-95 |
| Date of Issue | 2021-03-18 (CPSY, DC) |
| Conference Information | |
| Committee | CPSY / DC / IPSJ-SLDM / IPSJ-EMB / IPSJ-ARC |
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| Conference Date | 2021/3/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ETNET2021 |
| Chair | Hidetsugu Irie(Univ. of Tokyo) / Hiroshi Takahashi(Ehime Univ.) / Yuichi Nakamura(NEC) / / Hiroshi Inoue(Kyushu Univ.) |
| Vice Chair | Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) / Tatsuhiro Tsuchiya(Osaka Univ.) |
| Secretary | Michihiro Koibuchi(Univ. of Tokyo) / Kota Nakajima(Nagoya Inst. of Tech.) / Tatsuhiro Tsuchiya(Nihon Univ.) / (Chiba Univ.) / (Tokyo City Univ.) / (Kochi Univ. of Tech.) |
| Assistant | Shugo Ogawa(Hitachi) / Eiji Arima(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System and LSI Design Methodology / Special Interest Group on Embedded Systems / Special Interest Group on System Architecture |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | IPC control mechanism for highly efficient RT-DVFS |
| Sub Title (in English) | |
| Keyword(1) | |
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| 1st Author's Name | Atsushi Santo |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Nobuyuki Yamasaki |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| Date | 2021-03-26 |
| Paper # | CPSY2020-65,DC2020-95 |
| Volume (vol) | vol.120 |
| Number (no) | CPSY-435,DC-436 |
| Page | pp.pp.91-96(CPSY), pp.91-96(DC), |
| #Pages | 6 |
| Date of Issue | 2021-03-18 (CPSY, DC) |