2022

Task-Specific Expert Pruning for Sparse Mixture-of-Experts

Chen, Tianyu, Huang, Shaohan, Xie, Yuan et al.

Understand

The sparse Mixture-of-Experts (MoE) model is powerful for large-scale pre-training and has achieved promising results due to its model capacity.

  • However, with trillions of parameters, MoE is hard to be deployed on cloud or mobile environment.
  • The inference of MoE requires expert parallelism, which is not hardware-friendly and communication expensive.
  • Especially for resource-limited downstream tasks, such sparse structure has to sacrifice a lot of computing efficiency for limited performance gains.

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