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* [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

* [autoparallel] integrate_gpt_related_tests

* polish code

* polish code

* add GPT2Model into runtime test

* [optimizer] add div_scale for optimizers

* [zero] use div_scale in zero optimizer

* fix testing error

* add bwd and step for PP middleware

* pre-commit
Co-authored-by: Ziyue Jiang <ziyue.jiang@gmail.com>

* [zero] add L2 gradient clipping

* [testing] add MlpModel

* [zero] add unit test for grad clipping

* fix atol

* add DAG test case

* fix datarace by adjusting theposition of lock

* polish code

* fix pytest for middleware

* remove test
Co-authored-by: Ziyue Jiang <ziyue.jiang@gmail.com>

* [autoparallel] add bias addtion function class

* polish code

* polish

* [autoparallel] add embedding handler

* fix bugs