Weixiong Jiang, Heng Yu, Jiale Zhang, Jiaxuan Wu, Shaobo Luo, Yajun Ha. Optimizing energy efficiency of CNN-based object detection with dynamic voltage and frequency scaling[J]. Journal of Semiconductors, 2020, 41(2): 022406
- Journal of Semiconductors
- Vol. 41, Issue 2, 022406 (2020)
Fig. 1. System architecture of CNN accelerator.
Fig. 2. MMCM.
Fig. 3. Dynamically reconfiguring MMCM using AXI4-Lite interface.
Fig. 4. Pseudocode of the driver for dynamic frequency scaling.
Fig. 5. Power Management Framework on FPGA.
Fig. 6. Power monitoring system topology on ZCU104.
Fig. 7. Pseudocode of the driver for dynamic voltage scaling.
Fig. 8. (a) Timing diagram illustrating the DVFS policy with enough time to perform DVS. (b) Timing diagram illustrating the DVFS policy without enough time to perform DVS.
Fig. 9. Total time change with with frequency respectively.
Fig. 10. (Color online) PL side power change with voltage and frequency respectively.
Fig. 11. (Color online) Total energy changes with voltage and frequency respectively.
Fig. 12. (Color online) IoU changes with frequency at 840 mV.
Fig. 13. (Color online) Average of IoU changes with voltage and frequency respectively.
Fig. 14. (Color online) UEE changes with voltage and frequency respectively.
Fig. 15. (Color online) Idle power changes with voltage and frequency respectively.
Fig. 16. (Color online) Average power changes with voltage and frequency respectively.
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Table 1. Resource utilization of the system.
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Table 2. Comparison with other work.
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