19176

Research on OpenCL optimization for FPGA deep learning application

Shuo Zhang, Yanxia Wu, Chaoguang Men, Hongtao He, Kai Liang
College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China
PLoS ONE 14(10): e0222984, 2019

@article{zhang2019research,

   title={Research on OpenCL optimization for FPGA deep learning application},

   author={Zhang, Shuo and Wu, Yanxia and Men, Chaoguang and He, Hongtao and Liang, Kai},

   journal={PloS one},

   volume={14},

   number={10},

   pages={e0222984},

   year={2019},

   publisher={Public Library of Science San Francisco, CA USA}

}

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In recent years, with the development of computer science, deep learning is held as competent enough to solve the problem of inference and learning in high dimensional space. Therefore, it has received unprecedented attention from both the academia and the business community. Compared with CPU/GPU, FPGA has attracted much attention for its high-energy efficiency, short development cycle and reconfigurability in the aspect of deep learning algorithm. However, because of the limited research on OpenCL optimization on FPGA of deep learning algorithms, OpenCL tools and models applied to CPU/GPU cannot be directly used on FPGA. This makes it difficult for software programmers to use FPGA when implementing deep learning algorithms for a rewarding performance. To solve this problem, this paper proposed an OpenCL computational model based on FPGA template architecture to optimize the time-consuming convolution layer in deep learning. The comparison between the program applying the computational model and the corresponding optimization program provided by Xilinx indicates that the former is 8-40 times higher than the latter in terms of performance.
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