Recorder for gradients of certian modules

[lanqz7766]

Describe the question you meet

I want to achieve a distillation method that may require the teacher and student gradients of certain modules in the current batch. Is it possible to create a recorder to record a backward hook? I just need a general idea if it is possible to modify or create a new recorder.

Also, I am using the mmdetection3.x detectors model, those models are supported in MMrazor 1.0, right?

Any thoughts will be helpful!