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原因：
np.allclose(a, b, rtol)使用，计算误差是(a-b)的误差在(atol + rtol*b.abs())以内，但用例中b的值有0，误差就是atol了，atol默认是10的-8.
修改：
把atol根据用例改为传入的误差*10-3.

* [Feature] Support Voxelization with cambricon MLU device (#2500)

* [Feature] Support hard_voxelize with cambricon MLU backend

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Feature](bangc-ops): add voxelization op

* [Enhance] Optimize the performace of ms_deform_attn for MLU device (#2510)

* ms_opt

* ms_opt

* ms_opt

* ms_opt

* ms_opt

* [Feature] ms_deform_attn performance optimization

* [Feature] ms_deform_attn performance optimization

* [Feature] ms_deform_attn performance optimization

* [Feature] Support ball_query with cambricon MLU backend and mlu-ops library. (#2520)

* [Feature] Support ball_query with cambricon MLU backend and mlu-ops library.

* [Fix] update operator data layout setting.

* [Fix] add cxx compile option to avoid symbol conflict.

* [Fix] fix lint errors.

* [Fix] update ops.md with info of ball_query support by MLU backend.

* [Feature] Fix typo.

* [Fix] Remove print.

* [Fix] get mlu-ops from MMCV_MLU_OPS_PATH env.

* [Fix] update MMCV_MLU_OPS_PATH check logic.

* [Fix] update error info when failed to download mlu-ops.

* [Fix] check mlu-ops version matching info in mmcv.

* [Fix] revise wrong filename.

* [Fix] remove f.close and re.

* [Docs] Steps to compile mmcv-full on MLU machine (#2571)

* [Docs] Steps to compile mmcv-full on MLU machine

* [Docs] Adjust paragraph order

* Update docs/zh_cn/get_started/build.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update docs/zh_cn/get_started/build.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update docs/en/get_started/build.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update docs/en/get_started/build.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Docs] Modify the format

---------
Co-authored-by: budefei <budefei@cambricon.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Fix] Fix tensor descriptor setting in MLU ball_query. (#2579)

* [Feature] Add MLU support for Sparse Convolution op (#2589)

* [Feature] Add sparse convolution MLU API

* [Feature] update cpp code style

* end-of-file

* delete libext.a

* code style

* update ops.md

---------
Co-authored-by: budefei <budefei@cambricon.com>

* [Enhancement] Replace the implementation of deform_roi_pool with mlu-ops (#2598)

* [Feature] Replace the implementation of deform_roi_pool with mlu-ops

* [Feature] Modify code

---------
Co-authored-by: budefei <budefei@cambricon.com>

* [Enhancement] ms_deform_attn performance optimization (#2616)

* ms_opt_v2

* ms_opt_v2_1

* optimize MultiScaleDeformableAttention ops for MLU

* ms_opt_v2_1

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

* [Feature] ms_deform_attn performance optimization V2

---------
Co-authored-by: dongchengwei <dongchengwei@cambricon.com>

* [Feature] Support NmsRotated with cambricon MLU backend (#2643)

* [Feature] Support NmsRotated with cambricon MLU backend

* [Feature] remove foolproofs in nms_rotated_mlu.cpp

* [Feature] fix lint in test_nms_rotated.py

* [Feature] fix kMLU not found in nms_rotated.cpp

* [Feature] modify mlu support in nms.py

* [Feature] modify nms_rotated support in ops.md

* [Feature] modify ops/nms.py

* [Enhance] Add a default value for MMCV_MLU_ARGS (#2688)

* add mlu_args

* add mlu_args

* Modify the code

---------
Co-authored-by: budefei <budefei@cambricon.com>

* [Enhance] Ignore mlu-ops files (#2691)
Co-authored-by: budefei <budefei@cambricon.com>

---------
Co-authored-by: ZShaopeng <108382403+ZShaopeng@users.noreply.github.com>
Co-authored-by: BinZheng <38182684+Wickyzheng@users.noreply.github.com>
Co-authored-by: liuduanhui <103939338+DanieeelLiu@users.noreply.github.com>
Co-authored-by: budefei <budefei@cambricon.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: duzekun <108381389+duzekunKTH@users.noreply.github.com>
Co-authored-by: dongchengwei <dongchengwei@cambricon.com>
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* Chery pick from PR #2515 and #2684

* Fix

* replace extension to types

* update setup

* Update setup.py

* Update setup.py

---------
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* merge npu ops from master to 2.x

* BugFix: fix merge bugs

* {[Feature]: add psamask, roipool to 2.x, and fix the SigmoidFocalLoss assert condition

* merge conflicts in ops.md

* [fix]: fix merge bug

* [Fix] Adjust the minimum supported version of Python to 3.6

* refine the docs

* Rename mmcv package name

* fix typo

* fix typo

* fix typo

* remove deploy for 2.0

* update onnx ut

* [Docs] Add swith_language.md in docs (#2160)

* [Fix] Fix onnx unit tests (#2155)

* [Docs] Limit extension versions (#2144)

* Support PrRoIPool operation

* Add MPS bbox overlap

* Add .pre-commit-config-zh-cn.yaml (#2135)
Co-authored-by: xcnick <xcnick0412@gmail.com>
Co-authored-by: Jingwei Zhang <zjw18@mails.tsinghua.edu.cn>
Co-authored-by: q.yao <yaoqian@sensetime.com>

* add pyupgrade

* add options for pyupgrade

* minor refinement

- Add MLU operator kernels.

* [Feature] Add roiaware pool3d ops from mmdet3d (#1382)

* add ops (roiaware pool3d) in mmdet3d

* refactor code

* fix typo
Co-authored-by: zhouzaida <zhouzaida@163.com>

* [Feature] Add iou3d op from mmdet3d (#1356)

* add ops (iou3d) in mmdet3d

* add unit test

* refactor code

* refactor code

* refactor code

* refactor code

* refactor code
Co-authored-by: zhouzaida <zhouzaida@163.com>

* [Fix] Update test data for test_iou3d (#1427)

* Update test data for test_iou3d

* delete blank lines
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Feature] Add group points ops from mmdet3d (#1415)

* add op (group points) and its related ops (ball query and knn) in mmdet3d

* refactor code

* fix typo

* refactor code

* fix typo

* refactor code

* make input contiguous
Co-authored-by: zhouzaida <zhouzaida@163.com>

* add mmdet3d op (#1425)
Co-authored-by: zhouzaida <zhouzaida@163.com>

* [Feature] Loading objects from different backends and dumping objects to different backends (#1330)

* [Feature] Choose storage backend by the prefix of filepath

* refactor FileClient and add unittest

* support loading from different backends

* polish docstring

* fix unittet

* rename attribute str_like_obj to is_str_like_obj

* add infer_client method

* add check_exist method

* rename var client to file_client

* polish docstring

* add join_paths method

* remove join_paths and add _format_path

* enhance unittest

* refactor unittest

* singleton pattern

* fix test_clientio.py

* deprecate CephBackend

* enhance docstring

* refactor unittest for petrel

* refactor unittest for disk backend

* update io.md

* add concat_paths method

* improve docstring

* improve docstring

* add isdir and copyfile for file backend

* delete copyfile and add get_local_path

* remove isdir method of petrel

* fix typo

* add comment and polish docstring

* polish docstring

* rename _path_mapping to _map_path

* polish docstring and fix typo

* refactor get_local_path

* add list_dir_or_file for FileClient

* add list_dir_or_file for PetrelBackend

* fix windows ci

* Add return docstring

* polish docstring

* fix typo

* fix typo

* deprecate the conversion from Path to str

* add docs for loading checkpoints with FileClient

* refactor map_path

* add _ensure_methods to ensure methods have been implemented

* fix list_dir_or_file

* rename _ensure_method_implemented to has_method

* Add CI for pytorch 1.10 (#1431)

* [Feature] Upload checkpoints and logs to ceph (#1375)

* [Feature] Choose storage backend by the prefix of filepath

* refactor FileClient and add unittest

* support loading from different backends

* polish docstring

* fix unittet

* rename attribute str_like_obj to is_str_like_obj

* [Docs] Upload checkpoint to petrel oss

* add infer_client method

* Support uploading checkpoint to petrel oss

* add check_exist method

* refactor CheckpointHook

* support uploading logs to ceph

* rename var client to file_client

* polish docstring

* enhance load_from_ceph

* refactor load_from_ceph

* refactor TextLoggerHook

* change the meaning of out_dir argument

* fix test_checkpoint_hook.py

* add join_paths method

* remove join_paths and add _format_path

* enhance unittest

* refactor unittest

* add a unittest for EvalHook when file backend is petrel

* singleton pattern

* fix test_clientio.py

* deprecate CephBackend

* add warning in load_from_ceph

* fix type of out_suffix

* enhance docstring

* refactor unittest for petrel

* refactor unittest for disk backend

* update io.md

* add concat_paths method

* fix CI

* mock check_exist

* improve docstring

* improve docstring

* improve docstring

* improve docstring

* add isdir and copyfile for file backend

* delete copyfile and add get_local_path

* remove isdir method of petrel

* fix typo

* rename check_exists to exists

* refactor code and polish docstring

* fix windows ci

* add comment and polish docstring

* polish docstring

* polish docstring

* rename _path_mapping to _map_path

* polish docstring and fix typo

* refactor get_local_path

* add list_dir_or_file for FileClient

* add list_dir_or_file for PetrelBackend

* fix windows ci

* Add return docstring

* polish docstring

* fix typo

* fix typo

* fix typo

* fix error when mocking PetrelBackend

* deprecate the conversion from Path to str

* add docs for loading checkpoints with FileClient

* rename keep_log to keep_local

* refactor map_path

* add _ensure_methods to ensure methods have been implemented

* fix list_dir_or_file

* rename _ensure_method_implemented to has_method

* refactor

* polish information

* format information

* bump version to v1.3.16 (#1430)

* [Fix]: Update test data of test_tin_shift (#1426)

* Update test data of test_tin_shift

* Delete tmp.engine

* add pytest raises asserterror test

* raise valueerror, update test log

* add more comment

* Apply suggestions from code review
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* fix the wrong function reference bug in BaseTransformerLayer when batch_first is True (#1418)

* [Docs] Add mmcv itself in the docs list (#1441)

* Add mmcv itself in the docs list

* modify link of docs

* [Improve] improve checkpoint loading log (#1446)

* [Feature] Support SigmoidFocalLoss with Cambricon MLU backend (#1346)

* [Feature] Support SigmoidFocalLoss with Cambricon MLU backend

* refactor MMCV_WITH_MLU macro define

* refactor NFU_ALIGN_SIZE, PAD_DOWN and split_pipeline_num

* delete extra fool proofing in cpp

* [Feature] Support SigmoidFocalLossBackward with Cambricon MLU backend

* fix macro definition in SigmoidFocalLoss

* refactor mlu files into clang-format

* refactor sigmoid focal loss test

* refactor Sigmoid Focal Loss file structure.

* fix python lint error

* fix import torch_mlu error type

* fix lint

* refactor clang format style to google
Co-authored-by: zhouzaida <zhouzaida@163.com>

* [Feature] Support RoiAlign With Cambricon MLU Backend (#1429)

* [Feature] Support NMS with cambricon MLU backend (#1467)

* [Feature] Support BBoxOverlaps with cambricon MLU backend (#1507)

* [Refactor] Format C++ code

* [Refactor] include common_mlu_helper in pytorch_mlu_helper and refactor build condition

* [Improve] Improve the performance of roialign, nms and focalloss with MLU backend (#1572)

* [Improve] Improve the performance of roialign with MLU backend

* replace CHECK_MLU with CHECK_MLU_INPUT

* [Improve] Improve the perf of nms and focallosssigmoid with MLU backend

* [Improve] Improve the performance of roialign with MLU backend (#1741)

* [Feature] Support tin_shift with cambricon MLU backend (#1696)

* [Feature] Support tin_shift with cambricon MLU backend

* [fix] Add the assertion of batch_size in tin_shift.py

* [fix] fix the param check of tin_shift in cambricon code

* [fix] Fix lint failure.

* [fix] Fix source file lint failure.

* Update mmcv/ops/tin_shift.py

[Refactor] Modify the code in mmcv/ops/tin_shift.py.
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: budefei <budefei@cambricon.com>
Co-authored-by: budefei <budefei@cambricom.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* resolve conflicts and fix lint

* fix mmcv.utils.__init__

* fix mmcv.utils.__init__

* Fix lints and change FLAG

* fix setup and refine

* remove a redundant line

* remove an unnecessary 'f'

* fix compilation error
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Co-authored-by: zhouzaida <zhouzaida@163.com>
Co-authored-by: q.yao <yaoqian@sensetime.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
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* feat(MLU): Support PyTorch backend on MLU

  * MMCV support PyTorch backend on MLU

  * Add MLUDataParallel and MLUDistributedDataParallel

  * Add MLU operator support

* [Fix]: Fix PR comments and add IS_MLU to get device available check

* [Fix]: fix PR comments of dist_utils.py

* [Doc] Rewrite annotations of functions.

* [Docs] Rewrite annotation in distributed.py
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Docs] Fix lint
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Upgrade the version of isort

* sort the order of importing modules

* Remove the unnecessary dependency pytest-runner

* remove the tests_requires option from setup.py

* [Improve] build using ninja

* [Refactor] refactor requirements

* [Improve] imporve docs

* [Fix] fix file name

* fix tensorrt test failed with pytorch 1.8+

* add comment

* [Fix] Fix compiled error on windows

* fix typo

* [Fix] Fix the compiled error on windows due to the c++14 flag

* fix lint

* Add device registry for pytorch ops

* add declaration of CheckDeviceConsistency

* fix for torch130

* assert with torch check

* Refactor ops with dispatch

* update rest ops

* faster install

* update compatibility

* update compatibility, rename parameter

* move cpu implement to pytorch/cpu

* update ops/csrc/README.md

* fix rocm support

* update cn document

* update docs

* list instead of map

* [Feature] Add python3.9 in CI

* fix dependencies for compiling onnx

* Use more cpus in building
Signed-off-by: lizz <lizz@sensetime.com>

* Add psutil to requirements
Signed-off-by: lizz <lizz@sensetime.com>

* fix
Signed-off-by: lizz <lizz@sensetime.com>

* fix
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* Hope faster
Signed-off-by: lizz <lizz@sensetime.com>

* fix macos
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* use packaging instead

* update

* update

* update

* update

* [Refactor] Refactor the csrc directory

* update MANIFEST.in

* fix hip

* add csrc readme

* trailing whitespace

* fix syntax error in setup.py

* add compatibility docs

* move parrots_cudawarpfunction.cuh to common/cuda

* fix grammar, update directory tree

* fix MANIFEST.in

* Add new structre of csrc in compatibility.md

* Add original structre of csrc in compatibility.md

* fix typo

* remove TODO

* modify according to comment

* format
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* porting mmcv for hip

* add nvcc

* fix format

* fix format

* fix bug for carafe

* fix test_utils because rocm_torch not allow set torch.backends.cudnn.benchmark to false

* add LOOSEVERSION

* fix format

* fix format of version

* fix code format

* test for yaml

* fix bug for citest

* fix bug for how to get torch._version_ at setup.py