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FLIA: Architecture of Collaborated Mobile GPU and FPGA Heterogeneous Computing

Nan Hu, Chao Wang, Xuehai Zhou
School of Computer Science, University of Science and Technology of China, Hefei 230052, China
Heterogeneous Computing. Electronics, 11, 3756, 2022

@article{hu2022flia,

   title={FLIA: Architecture of Collaborated Mobile GPU and FPGA Heterogeneous Computing},

   author={Hu, Nan and Wang, Chao and Zhou, Xuehai},

   journal={Electronics},

   volume={11},

   number={22},

   pages={3756},

   year={2022},

   publisher={MDPI}

}

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Accelerators, such as GPUs (Graphics Processing Unit) that is suitable for handling highly parallel data, and FPGA (Field Programmable Gate Array) with algorithms customized architectures, are widely adopted. The motivation is that algorithms with various parallel characteristics can efficiently map to the heterogeneous computing architecture by collaborated GPU and FPGA. However, current applications always utilize only one type of accelerator because the traditional development approaches need more support for heterogeneous processor collaboration. Therefore, a comprehensible architecture facilitates developers to employ heterogeneous computing applications. This paper proposes FLIA (Flow-Lead-In Architecture) for abstracting heterogeneous computing. FLIA implementation based on OpenCL extension supports task partition, communication, and synchronization. An embedded system of a three-dimensional waveform oscilloscope is selected as a case study. The experimental results show that the embedded heterogeneous computing achieves 21x speedup than the OpenCV baseline. Heterogeneous computing also consumes fewer FPGA resources than the pure FPGA accelerator, but their performance and energy consumption are approximate.
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