enable cpu distribution training using mpirun
Author: sywangyi
Pull request: yes

*command like
*    mpirun -n 2 python3 run_qa.py --no_cuda --xpu_backend ccl xxxx
*MASTER_ADDR and MASTER_PORT should be set as env
*export MASTER_ADDR=127.0.0.1
*export MASTER_PORT=29500

Signed-off-by: Wang, Yi A <yi.a.wang@intel.com>

# What does this PR do?

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Fixes https://github.com/huggingface/transformers/issues/17581


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Comments:
_The documentation is not available anymore as the PR was closed or merged._

@sgugger please have review or invite someone else.

I open a issue https://github.com/huggingface/transformers/issues/17581 for it.

@yao-matrix