[WIP] Support unified checkpoint for expert_parallel

[DesmonDay]

PR types

New features

PR changes

Others

Description

Support unified checkpoint for expert_parallel.

[paddle-bot[bot]]

Thanks for your contribution!

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 4.00000% with 120 lines in your changes missing coverage. Please review.

Project coverage is 55.74%. Comparing base (4e3f60d) to head (c555c30). Report is 479 commits behind head on develop.

Files with missing lines	Patch %	Lines
paddlenlp/trainer/plugins/unified_checkpoint.py	4.00%	120 Missing :warning:

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8591      +/-   ##
===========================================
+ Coverage    53.86%   55.74%   +1.88%     
===========================================
  Files          620      620              
  Lines        97110    96741     -369     
===========================================
+ Hits         52306    53930    +1624     
+ Misses       44804    42811    -1993     

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[github-actions[bot]]

This Pull Request is stale because it has been open for 60 days with no activity. 当前Pull Request 60天内无活动，被标记为stale。