* [Feature] Add distributed module
* fix IS_DIST error
* all_reduce_dict does operations in-place
* support 'mean' operation
* provide local group process
* add tmpdir argument for collect_results
* add unit tests
* refactor unit tests
* simplify steps to create multiple processes
* minor fix
* describe the different of *gather* in mmengine and pytorch
* minor fix
* add unit tests for nccl
* test nccl backend in multiple gpu
* add get_default_group function to handle different torch versions
* minor fix
* [Feature] Add distributed module
* fix IS_DIST error
* all_reduce_dict does operations in-place
* support 'mean' operation
* provide local group process
* add tmpdir argument for collect_results
* add unit tests
* refactor unit tests
* simplify steps to create multiple processes
* minor fix
* describe the different of *gather* in mmengine and pytorch
* minor fix
* add unit tests for nccl
* test nccl backend in multiple gpu
* add get_default_group function to handle different torch versions
* minor fix
* minor fix
* handle torch1.5
* handle torch1.5
* minor fix
* fix typo
* refactor unit tests
* nccl does not support gather and gather_object
* fix gather
* fix collect_results_cpu
* fix collect_results and refactor unit tests
* fix collect_results unit tests
* handle torch.cat in torch1.5
* refine docstring
* refine docstring
* fix comments
* fix comments
* basedataset first commit
* add base dataset
* add dataset
* add basedataset
* Fix test dataset
* Fix mypy and test
* Fix mypy and test
* remove unused code
* Update mmengine/dataset/base_dataset.py
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
* Update mmengine/dataset/base_dataset.py
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
* add more corner cases in unittest
* fix lint
* Fix as comment
* Fix lint
* update unitest
* Type hint Dick to dict
* rename max_refetch
* Fix as comment
* Fix typo
* Fix as comment
* BaseDataset is no more an abstrac Class, change UT and docs
* Fix as comment
* Fix as comment and refactor type error
* Add comment for full init
* Fix as comment and modify dataset_wrapper
* Fix as comment and modify dataset_wrapper
* Fix as comment
* Fix as comment
* Fix as comment
* Fix as comment
* Fix as comment
* Fix as comment
* Fix as comment
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: Tao Gong <gongtao950513@gmail.com>
* add unit tests of data abstract interface
* update
* update
* update docs of data element
* a draft of UT of datasample, to be finished
* update datasample test
* updata
* update
* fix comments
* fix comments
* fix comments
Co-authored-by: liukuikun <liukuikun@sensetime.com>
