| Presentation | 2009-01-14 マルチメディア応用ヘテロジニアスマルチコアアーキテクチャの評価(組込みシステムプラットフォーム) Daisuke OKUMURA, Hasitha MUTHUMALA WAIDYASOORIYA, Takehisa MATSUDA, Masanori HARIYAMA, Michitaka KAMEYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Heterogeneous processors are attracted by the image processing and recognition applications due to their capability of drawing strengths of different cores to improve the overall performance. However, data transfer between different cores caues serious performance degradetion. In this paper, we evaluate optical flow and Histogram of Oriented Gradients (HOG) on a heterogeneous multicore processor RP1 that has four CPUs and two reconfigurable processors. The reconfiguralbe processor called Flexible Engine/Generic ALU arrays (FE-GA) works as an accelerator for multimedia applications. To improve the total performances, we present task allocation to reduce the data transfers between different cores and modification of an algorithm suitable for the FE-GA. The performances per watt for optical flow and HOG are improved by 30.3 times and 2.1 times in comparison with a single CPU. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dynamic Reconfiguration / Reconfigurable architecture / Optical flow / HOG |
| Paper # | ICD2008-139 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2009/1/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | |
| Sub Title (in English) | |
| Keyword(1) | Dynamic Reconfiguration |
| Keyword(2) | Reconfigurable architecture |
| Keyword(3) | Optical flow |
| Keyword(4) | HOG |
| 1st Author's Name | Daisuke OKUMURA |
| 1st Author's Affiliation | Graduate School of Information Sciences, Tohoku University() |
| 2nd Author's Name | Hasitha MUTHUMALA WAIDYASOORIYA |
| 2nd Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| 3rd Author's Name | Takehisa MATSUDA |
| 3rd Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| 4th Author's Name | Masanori HARIYAMA |
| 4th Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| 5th Author's Name | Michitaka KAMEYAMA |
| 5th Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| Date | 2009-01-14 |
| Paper # | ICD2008-139 |
| Volume (vol) | vol.108 |
| Number (no) | 375 |
| Page | pp.pp.- |
| #Pages | 6 |
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