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* add auto-offload feature

* polish code

* fix syn offload runtime pass bug

* add offload example

* fix offload testing bug

* fix example testing bug

* add alpa dp split

* add alpa dp split

* use fwd+bwd instead of fwd only

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

Co-authored-by: github-actions <github-actions@github.com>

Fix hpcaitech/ColossalAI#2851

* [tutorial] polish readme.md

* [example] Update README.md

* [zero] add strict ddp mode for chunk init

* [gemini] update gpt example

* [zero] add strict ddp mode

* [polish] add comments for strict ddp mode

* [zero] fix test error

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

* [autoparallel] integrate device mesh initialization into autoparallelize

* add megatron solution

* update gpt autoparallel examples with latest api

* adapt beta value to fit the current computation cost

* change the benchmark config file

* change config

* revert config file

* rename distpan to distplan

* [hotfix] fix gpt gemini example

* [example] add new assertions

* [workflows]bug_repair

* [workflow]new_pr_fixing_bugs
Co-authored-by: binmakeswell <binmakeswell@gmail.com>

* add benchmark

* merge common func

* add total and avg tflops
Co-authored-by: Ziyue Jiang <ziyue.jiang@gmail.com>

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