Dynamic Adaptive DNN Surgery for Inference Acceleration on the Edge

By Chuang Hu, Wei Bao, Dan Wang, Fengming Liu. IEEE Conference on Computer Communications, 2019

394 citations recorded by the source corpus.

Recent advances in deep neural networks (DNNs) have substantially improved the accuracy and speed of a variety of intelligent applications. Nevertheless, one obstacle is that DNN inference imposes heavy computation burden to end devices, but offloading inference tasks to the cloud causes transmission of a large volume of data. Motivated by the fact that the data size of some intermediate DNN layers is significantly smaller than that of raw input data, we design the DNN surgery, which allows partitioned DNN processed at both the edge and cloud while limiting the data transmission. The challenge is twofold: (1) Network dynamics substantially influence the performance of DNN partition, and (2) State-of-the-art DNNs are characterized by a directed acyclic graph (DAG) rather than a chain so that partition is greatly complicated. In order to solve the issues, we design a Dynamic Adaptive DNN Surgery (DADS) scheme, which optimally partitions the DNN under different network condition. Under the lightly loaded condition, DNN Surgery Light (DSL) is developed, which minimizes the overall delay to process one frame. The minimization problem is equivalent to a min-cut problem so that a globally optimal solution is derived. In the heavily loaded condition, DNN Surgery Heavy (DSH) is developed, with the objective to maximize throughput. However, the problem is NP-hard so that DSH resorts an approximation method to achieve an approximation ratio of 3. Real-world prototype based on self-driving car video dataset is implemented, showing that compared with executing entire the DNN on the edge and cloud, DADS can improve latency up to 6.45 and 8.08 times respectively, and improve throughput up to 8.31 and 14.01 times respectively.

Subfields: Computer Vision and Pattern Recognition, Electrical and Electronic Engineering, Neurology

View Paper: https://www.semanticscholar.org/paper/a82bebb9c51b7b0a57ac0026f47344b948acc9e0

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In Computer Vision and Pattern Recognition

  1. Xu Chen
  2. Liekang Zeng
  3. Zhi Zhou
  4. En Li
  5. Yuang Jiang
  6. Mário Almeida
  7. Nicholas Donald Lane
  8. Leandros Tassiulas

In Electrical and Electronic Engineering

  1. Liekang Zeng
  2. Nicholas Donald Lane
  3. Zhi Zhou
  4. Leandros Tassiulas
  5. Xu Chen
  6. Ilias Leontiadis
  7. Junshan Zhang
  8. Anders Høst-Madsen

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