[XPU] Fix some xpu context stream issue.

[ZibinGuo]

PR Category

Custom Device

PR Types

Bug fixes

Description

1. Fix unexpected behavior caused by unintended modifications to the default stream in xpu_context.
2. Fix timeout issue when setting CPU affinity on Hygon CPUs.

[paddle-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@425a399). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
python/paddle/distributed/utils/process_utils.py	0.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop   #76683   +/-   ##
==========================================
  Coverage           ?    0.00%           
==========================================
  Files              ?        1           
  Lines              ?        1           
  Branches           ?        0           
==========================================
  Hits               ?        0           
  Misses             ?        1           
  Partials           ?        0           

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[ZibinGuo]

/re-run all-failed

[ZibinGuo]

/re-run all-failed