Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS
Abstract—While FPGA has been recognized as a promising platform to accelerate Convolutional Neural Networks (CNNs) in embedded computing given its high flexibility and power efficiency, two challenges still have to be addressed to enhance its applicability on the edgecomputing paradigm. First, the p...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2019
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| Online Access: | https://eprints.nottingham.ac.uk/60004/ |
| _version_ | 1848799709693476864 |
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| author | Jiang, Weixiong Yu, Heng Liu, Xinzhe Ha, Yajun |
| author_facet | Jiang, Weixiong Yu, Heng Liu, Xinzhe Ha, Yajun |
| author_sort | Jiang, Weixiong |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Abstract—While FPGA has been recognized as a promising platform to accelerate Convolutional Neural Networks (CNNs) in embedded computing given its high flexibility and power efficiency, two challenges still have to be addressed to enhance its applicability on the edgecomputing paradigm. First, the power and performance of the CNN accelerator are still bounded by memory throughput, and a CNNcustomized architecture is desirable to fully utilize the on-chip storage. Second, power optimization algorithms are insufficiently explored on CNN-targeted platforms. In this paper, we design a novel FPGA-based CNN accelerator architecture that makes full use of the on-chip storage resources leveraging data reuse and loop unrolling strategies. We also present an efficient FPGA-based voltage and frequency scaling (VFS) system that enables VFS of the CNN accelerator for power optimization. We devise a VFS policy that fully exploits the power efficiency potential of the FPGA. Experiment results show up to 40% energy can be saved with our VFS platform and policy. |
| first_indexed | 2025-11-14T20:39:59Z |
| format | Conference or Workshop Item |
| id | nottingham-60004 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:39:59Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-600042020-02-28T03:34:20Z https://eprints.nottingham.ac.uk/60004/ Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS Jiang, Weixiong Yu, Heng Liu, Xinzhe Ha, Yajun Abstract—While FPGA has been recognized as a promising platform to accelerate Convolutional Neural Networks (CNNs) in embedded computing given its high flexibility and power efficiency, two challenges still have to be addressed to enhance its applicability on the edgecomputing paradigm. First, the power and performance of the CNN accelerator are still bounded by memory throughput, and a CNNcustomized architecture is desirable to fully utilize the on-chip storage. Second, power optimization algorithms are insufficiently explored on CNN-targeted platforms. In this paper, we design a novel FPGA-based CNN accelerator architecture that makes full use of the on-chip storage resources leveraging data reuse and loop unrolling strategies. We also present an efficient FPGA-based voltage and frequency scaling (VFS) system that enables VFS of the CNN accelerator for power optimization. We devise a VFS policy that fully exploits the power efficiency potential of the FPGA. Experiment results show up to 40% energy can be saved with our VFS platform and policy. 2019-11-09 Conference or Workshop Item PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/60004/1/1-merged.pdf Jiang, Weixiong, Yu, Heng, Liu, Xinzhe and Ha, Yajun (2019) Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS. In: 26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019, 27 November 2019 through 29 November 2019, Genoa; Italy. http://dx.doi.org/10.1109/ICECS46596.2019.8964717 10.1109/ICECS46596.2019.8964717 10.1109/ICECS46596.2019.8964717 10.1109/ICECS46596.2019.8964717 |
| spellingShingle | Jiang, Weixiong Yu, Heng Liu, Xinzhe Ha, Yajun Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title | Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title_full | Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title_fullStr | Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title_full_unstemmed | Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title_short | Energy efficiency optimization of FPGA-based CNN accelerators with full data reuse and VFS |
| title_sort | energy efficiency optimization of fpga-based cnn accelerators with full data reuse and vfs |
| url | https://eprints.nottingham.ac.uk/60004/ https://eprints.nottingham.ac.uk/60004/ https://eprints.nottingham.ac.uk/60004/ |