Asynchronous reconfigurable CNN design

  • Asynchronous reconfigurable CNN design


  • The chip works exactly right.

    Synchronous and asynchronous areas are basically the same.

    Handshake unit Click accounted for a very small proportion (1.6%) of the total area;

    The power consumption of asynchronous computing array is 30% lower than that of synchronous computing array.

    The reliability of the design method at 65nm is further verified.

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asynchronous reconfigurable SNN design

  • Asynchronous reconfigurable SNN design

  • An efficient event-driven updating mechanism of event step size is proposed;

    Asynchronous SNN accelerator: 1024 neurons, 1 million synapses, 8-bit fixed-point weight;

    Lenet-5, the identification accuracy of 98%, higher than all other literature results;


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Asynchronous circuits design flow

  • Asynchronous circuits design flow

  • The silicon test results show that the asynchronous accelerator has 30% less power 

    in computing array than the synchronous one in TSMC 65nm CMOS process, 

    and the energy efficiency of the asynchronous and synchronous accelerators

     are 1.539 TOPS/W and 1.37 TOPS/W respectively.

    The energy efficiency of the asynchronous accelerator in TSMC 180nm CMOS 

    process is 133 GOPS/W.

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    Design flow for Click-based asynchronous BD circuits


Sponsors
863 program

National High-tech R&D Program (863 Program)


863 program

National Natural Science Foundation of China


863 program

Tsinghua University


863 program

Ministry of Science and Technology of China