* Disable warning of subprocess launched by dataloader

* Add type hint

* [Feature] Add ReduceOnPlateauParamScheduler and change ParamSchedulerHook

* [Feature] add ReduceOnPlateauLR and ReduceOnPlateauMomentum

* pre-commit check

* add a little docs

* change position

* fix the conflict between isort and yapf

* fix ParamSchedulerHook after_val_epoch execute without train_loop and param_schedulers built

* Apply suggestions from code review

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* update ReduceOnPlateauParamScheduler, ReduceOnPlateauMomentum and ParamSchedulerHook

* fix get need_step_args attribute error in ParamSchedulerHook

* fix load_state_dict error for rule in ReduceOnPlateauParamScheduler

* add docs for ParamSchedulerHook and fix a few codes

* [Docs] add ReduceOnPlateauParamScheduler, ReduceOnPlateauMomentum and ReduceOnPlateauLR docs

* [Refactor] adjust the order of import

* [Fix] add init check for threshold in ReduceOnPlateauParamScheduler

* [Test] add test for ReduceOnPlateauParamScheduler, ReduceOnPlateauLR and ReduceOnPlateauMomentum

* [Fix] fix no attribute self.min_value

* [Fix] fix numerical problem in tests

* [Fix] fix error in tests

* [Fix] fix ignore first param in tests

* [Fix] fix bug in tests

* [Fix] fix bug in tests

* [Fix] fix bug in tests

* [Fix] increase coverage

* [Fix] fix count self._global_step bug and docs

* [Fix] fix tests

* [Fix] modified ParamSchedulerHook test

* Update mmengine/optim/scheduler/param_scheduler.py

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* Apply suggestions from code review

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* [Fix] modified something according to commented

* [Docs] add api for en and zh_cn

* [Fix] fix bug in test_param_scheduler_hook.py

* [Test] support more complicated test modes(less, greater, rel, abs) for ReduceOnPlateauParamScheduler

* [Docs] add docs for rule

* [Fix] fix pop from empty list bug in test

* [Fix] fix check param_schedulers is not built bug

* [Fix] fix step_args bug and without runner._train_loop bug

* [Fix] fix step_args bug and without runner._train_loop bug

* [Fix] fix scheduler type bug

* [Test] rename step_args to step_kwargs

* [Fix] remove redundancy check

* [Test] remove redundancy check

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* [Test] fix some defects

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* Fix PKG2PROJECT

* Rename PKG2PROJECT to MODULE2PACKAGE

* Fix ci

* Remove unnecessary change

* Create fileio.md

* Update fileio.md

* Update fileio.md

* fix minor comments

* Update fileio.md

* [Enhance] Remove unnecessary calls to speed import performance

* lazily import matplotlib

* minor refinement

* [Enhance] Support non-scalar type metric value.

* Refactor support.

* Fix non-scalar tags problem during validation

* Update tag processor.

* add npu device support

* add comment for torch.npu.set_compile_mode

* Separate init_cfgs to pretrained_cfg and other_cfgs

* Fix unit test

* update documentation

* Fix render of initialize.md

* Fix as comment

* rename initialize.md to weight_initialization.md

* add file

* fix ci

* rename weight_initialization.md to initialize.md

* Fix duplicated .md

* prefer install binray for opencv

* clean the code

* rename BinaryPeferredPackageIndex

* adjust minimum version of python

* clean the code

* remove duplicated CI

* Doc： update

* update gan

* Doc: update

* fix typos in zh_cn `logging.md`

* fix typos in en `logging.md`

* Update logging.md

* [Fix] Fix config cannot parse tmp path like

* Add comments

* Add comments

* Apply suggestions from code review

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* Bump version to v0.4.0

* minor refine

* minor refine

* add contributor in changelog

* [Enhance] Ensure metrics is not empty when saving best ckpts

* fix warn to warning

* delete a unnecessary method

* Add build_runner_with_tta and PrepareTTAHook

* rename hook file

* support build tta runner with runner type

* add unit test

* Add build_runner_with_tta to index.rst

* minor refine

* Add runner test cast

* Fix unit test

* fix unit test

* tmp save

* pop None if key does not exist

* Fix is_model_wrapper and force register class in test_runner

* [Fix] Fix is_model_wrapper

* destroy group after ut

* register module in testcase

* pass through unit test

* fix as comment

* remove breakpoint

* remove mmengine/testing/runner_test_cast.py

* minor refine

* minor refine

* minor refine

* set default data preprocessor for model

* minor refine

* minor refine

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* fix lint

* Fix unit test

* replace  with  in ImgDataPreprocessor

* Fix as comment

* add inference tutorial in advanced tutorial

* update index.rst

* add tta example

* refine tta tutorial

* Add english tutorial

* add note for build_runner_with_tta

* Fix as comment

* add examples

* remove chinese comment

* Update docs/en/advanced_tutorials/test_time_augmentation.md

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* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* [Feature] Add profiler hook functionality

* Apply suggestions from code review

* Update mmengine/hooks/profiler_hook.py

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* only test timer in linux

* Fix merge_stage_test.yml

* remove install ffmpeg

* test_ci

* test_ci

* Fix python -m pip install pip --upgrade to pip install

* don't test unittest with sleep 1 in windows

* debug with tmate

* increase timeout

* increase timeout

* skip test gloo

* skip test gloo

* fix synteax error

* skip test gloo in torch 1.13

* skip test gloo in torch 1.13

* skip testing setup_env in macOS

* skip test test_dist

* skip test setup

* restore triggered during push

* clean the code

* debug macos

* refine macOS CI

* test merge stage test

* trigger CI during push to main

* Fix as comment

* [Feature] Support registry auto import modules.

* update

* rebase and fix ut

* add docstring

* remove count_registered_modules

* update docstring

* resolve comments

* resolve comments

* rename ut

* fix warning

* avoid BC breaking

* update doc

* update doc

* resolve comments

* init

* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* Update docs/en/tutorials/optim_wrapper.md

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* update link in the Chinese version

* Update docs/en/tutorials/optim_wrapper.md

* Apply suggestions from code review

* Update docs/en/tutorials/optim_wrapper.md

* merge&remove redundant spaces

* Update docs/en/tutorials/optim_wrapper.md

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* update flat_decay_mult

* Apply suggestions from code review

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* Update docstring of `structures`

* update docs

* add `import torch` to `examples`

* Update README.md

* Update index.rst

* update doc

* update doc

* Update mmengine/structures/base_data_element.py

* Update mmengine/structures/base_data_element.py

* Apply suggestions from code review

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* Fix message hub

* Remove _set_resumed_keys in update_scalars and update_info_dict

* remove  in update_scalars

* clean unnecessary code

* [Fix] Fix failed unit tests caused by the new released numpy

* minor fix

* fix zero_optimizer error with param groups when pytorch < 1.12.0

* add docstring

* fix docstring

* add unittest

* change ut to use a valid paramwise_cfg

* modify ut

* fix as comments

* update docs template

* Update .github/ISSUE_TEMPLATE/3-documentation.yml

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* [Fix] Fix bias decay mult of depth-wise conv.

* support flatten param weight decay multiplier

* add unit tests

* REMOVE TODO

* update doc

* Add torchvision_0.12.json

* update MANIFEST.in

* translate init

* Update docs/en/advanced_tutorials/registry.md

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* Update docs/en/advanced_tutorials/registry.md

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* Update docs/en/advanced_tutorials/registry.md

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* update link in the chinese version

* Update docs/en/advanced_tutorials/registry.md

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* Update docs/en/advanced_tutorials/registry.md

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* Update docs/en/advanced_tutorials/registry.md

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* [Docs] Fix docstring format

* minor refine

* minor refine

* [Docs] Translate the docs of hook design

* Apply suggestions from code review

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* init

* init

* Update docs/en/examples/save_gpu_memory.md

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* Update docs/en/examples/save_gpu_memory.md

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* Update docs/en/examples/save_gpu_memory.md

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* Update docs/en/examples/save_gpu_memory.md

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* revise the chinese version on gradiant checkpointing

* Update docs/zh_cn/examples/save_gpu_memory.md

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* Apply suggestions from code review

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* update link

* fix typos

* Update docs/en/advanced_tutorials/basedataset.md

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* use current logger

* remove get_current_instance

* remove logger parameter at weight_init

* remove elif branch

* enhance get_torchvision_model

* remove mmcv