* Rename data to structure

* adjust the way to import module

* adjust the way to import module

* rename Structure to Data Structures in docs api

* rename structure to structures

* support using some modules of mmengine without torch

* fix circleci config

* fix circleci config

* fix registry ut

* minor fix

* move init method from model/utils to model/weight_init.py

* move init method from model/utils to model/weight_init.py

* move sync_bn to model

* move functions depending on torch to dl_utils

* format import

* fix logging ut

* add weight init in model/__init__.py

* move get_config and get_model to mmengine/hub

* move log_processor.py to mmengine/runner

* fix ut

* Add TimeCounter in dl_utils/__init__.py

* [Refactor] Refactor the import rule

* minor refinement

* add a comment

* Fix setLevel of MMLogger

Fix setLevel of MMLogger

* add docstring and comment

* Add pyupgrade pre-commit hook

* fix ut

* remove comments

* [Fix] Replace torch distributed with mmengine dist module

* minor refinement

* move all_reduce_params to dist.py

* add unit tests

* update unit tests

* fix test_logger.py

* add examples

* MMLogger can call get_current_instance without get_instance, change log path

* fix docstring

* fix docstring and update UT

* Fix runner

* fix docstring and lint

* fix ut below python3.8

* resolve circle import

* rename global accessible and intergration get_sintance and create_instance

* move ManagerMixin to utils

* fix as docstring and seporate get_instance to get_instance and get_current_instance

* fix lint

* fix docstring, rename and move test_global_meta

* rename LogBuffer to HistoryBuffer, rename MessageHub methods, MessageHub support resume

* refine MMLogger timestamp, update unit test

* MMLogger add logger_name arguments

* Fix docstring

* change default logger_name to mmengine

* Fix docstring comment and unitt test

* fix docstring

fix docstring

* fix docstring

* Fix lint

* Fix hook unit test

* Fix comments

* should not accept other arguments if corresponding instance has been created

* fix logging ddp file saving

* fix logging ddp file saving

* fix docstring

* fix unit test

* fix docstring as comment

* rename global accessible and intergration get_sintance and create_instance

* move ManagerMixin to utils

* fix as docstring and seporate get_instance to get_instance and get_current_instance

* fix lint

* fix docstring, rename and move test_global_meta

* fix manager's runtime error description

fix manager's runtime error description

* Add comments

* Add comments

* first commit

* update logging

* update MessageHub unit test and LogBuffer unitest

* update logging docs

* update logging impl and test

* update test logging

* update test

* update logging test and impl

* Fix logging test

* Update log_buffer.py

* rename statistics argumentes

* fix as comment

* Fix as comment

* Fix as comment

* Fix as comment

* Fix meta class

* Fix as comment

* Fix as comment

* Fix as comment

* Fix name declare

* Fix as comment

* Fix as comment

* Fix as comment

* Fix docstring

* Fix as comment

* Fix as comment