Benchmarks: micro benchmarks - add --set_ib_devices option to auto-select IB device by MPI local rank in ib validation

[yukirora]

Description
add --set_ib_devices option to auto-select IB device by MPI local rank

Major Revision

• Add a new CLI flag --set_ib_devices to automatically select irregular IB devices based on the MPI local rank.
• When enabled, the benchmark queries available IB devices via network.get_ib_devices() and selects the device corresponding to OMPI_COMM_WORLD_LOCAL_RANK.
• Fall back to existing --ib_dev behavior when the flag is not provided.

Minor Revision

• Add an env in network.get_ib_devices() to allow user to set the device name

[codecov]

Codecov Report

❌ Patch coverage is 76.92308% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.69%. Comparing base (25db111) to head (aa7f39e).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...arks/micro_benchmarks/ib_validation_performance.py	70.00%	3 Missing ⚠️

❌ Your patch status has failed because the patch coverage (76.92%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #733      +/-   ##
==========================================
- Coverage   85.71%   85.69%   -0.02%     
==========================================
  Files         102      102              
  Lines        7678     7691      +13     
==========================================
+ Hits         6581     6591      +10     
- Misses       1097     1100       +3     

Flag	Coverage Δ
cpu-python3.10-unit-test	70.95% <76.92%> (+0.01%)	⬆️
cpu-python3.12-unit-test	70.95% <76.92%> (+0.01%)	⬆️
cpu-python3.7-unit-test	70.40% <76.92%> (+0.01%)	⬆️
cuda-unit-test	83.60% <76.92%> (-0.02%)	⬇️

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