AutoML for model compression

[chicm-ms]

• NNI pruning framework updates:
  • support channel round (for example, preserved channels up round to 4)
  • support reset wrapper and weights
  • change compressing module ... log message from info to debug
• AMC pruner implementation
  • agent(DDPG), reuse AMC code
  • pruning environment (use NNI framework to prune)
  • export (speedup)
  • mobilenetv2
• Example
  • search sparsity and prune model with best sparsity
  • train a pretrained model before search
  • finetune pruned model
• Benchmark
• Documentation
• Unit test