v0.2.8
[zero] add zero wrappers (#2523)
[moe] fix MoE bugs (#1628)
Revert "[zero] add ZeroTensorShardStrategy (#793)" (#806)
[testing] add beit model for unit testings (#2196)
[test] align model name with the file name. (#2045)
[gemini] add GeminiMemoryManger (#832)
[colotensor] add Tensor.view op and its unit test (#1343)
[hotfix] fix auto policy of test_sharded_optim_v2 (#2157)
[test] refactored with the new rerun decorator (#763)
[hotfix] shared model returns cpu state_dict (#1328)
[test] ignore 8 gpu test (#1080)
[refactor] moving memtracer to gemini (#801)