mmcv/docs/understand_mmcv/ops.md

## CUDA ops

We implement common CUDA ops used in detection, segmentation, etc.

- BBoxOverlaps
- CARAFE
- CrissCrossAttention
- ContextBlock
- CornerPool
- Deformable Convolution v1/v2
- Deformable RoIPool
- GeneralizedAttention
- MaskedConv
- NMS
- PSAMask
- RoIPool
- RoIAlign
- SimpleRoIAlign
- SigmoidFocalLoss
- SoftmaxFocalLoss
- SoftNMS
- Synchronized BatchNorm
- Weight standardization
add ext ops, support parrots (#310) * add ext ops, support parrots * fix lint * fix lint * update op from mmdetection * support non-pytorch env * fix import bug * test not import mmcv.op * rename mmcv.op to mmcv.ops * fix compile warning * 1. fix syncbn warning in pytorch 1.5 2. support only cpu compile 3. add point_sample from mmdet * fix text bug * update docstrings * fix line endings * minor updates * remove non_local from ops * bug fix for nonlocal2d * rename ops_ext to _ext and _ext to _flow_warp_ext * update the doc * try clang-format github action * fix github action * add ops to api.rst * fix cpp format * fix clang format issues * remove .clang-format Co-authored-by: Kai Chen <chenkaidev@gmail.com> 2020-06-28 23:15:47 +08:00			`## CUDA ops`

			`We implement common CUDA ops used in detection, segmentation, etc.`

			`- BBoxOverlaps`
			`- CARAFE`
			`- CrissCrossAttention`
			`- ContextBlock`
			`- CornerPool`
			`- Deformable Convolution v1/v2`
			`- Deformable RoIPool`
			`- GeneralizedAttention`
			`- MaskedConv`
			`- NMS`
			`- PSAMask`
			`- RoIPool`
			`- RoIAlign`
			`- SimpleRoIAlign`
			`- SigmoidFocalLoss`
			`- SoftmaxFocalLoss`
			`- SoftNMS`
			`- Synchronized BatchNorm`
			`- Weight standardization`