GitLab

* init npu

* add npu extension and focal loss adapter

* clean code

* clean code

* clean code

* clean code

* fix autocast bugs on npu (#2273)

fix autocast bugs on npu (#2273)

* code format

* code format

* code format

* bug fix

* pytorch_npu_helper.hpp clean code

* Npu dev (#2306)

* fix autocast bugs on npu
* using scatter_kwargs in mmcv.device.scatter_gather

* raise ImportError when compile with npu

* add npu test case (#2307)

* add npu test case

* Update focal_loss.py

* add comment

* clean lint

* update dtype assert

* update DDP forward and comment

* fix bug
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: ckirchhoff <515629648@qq.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>