GitLab

* [zero] add strict ddp mode for chunk init

* [gemini] update gpt example

* [ddp] add is_ddp_ignored

[ddp] rename to is_ddp_ignored

* [zero] fix state_dict and load_state_dict

* fix bugs

* [zero] update unit test for ZeroDDP

* [gemini] polish code

* [testing] remove code

* [gemini] make more robust

* [testing] add beit model

* [beit] fix bugs

* [beit] fix bugs

* [testing] fix bugs

* [zero] fix error for BEiT models

* [ColoParameter] add unpack operation for tuple arguments

* fix bugs

* fix chunkv2 unit testing

* add assertion for gradient state

* [zero] add L2 gradient clipping

* [testing] add MlpModel

* [zero] add unit test for grad clipping

* fix atol

* [gemini] fix init bugs for modules

* fix bugs

* [Gemini] more tests for Gemini

* polish code