scheduler: assure only gpu will allocate by topology

[ZiMengSheng]

Ⅰ. Describe what this PR does

Currently, allocate by topology is time-consuming, we don't need it when deviceType isn't gpu.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.90%. Comparing base (e1d910a) to head (8e0a3ba).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2178   +/-   ##
=======================================
  Coverage   67.90%   67.90%           
=======================================
  Files         443      443           
  Lines       41967    41974    +7     
=======================================
+ Hits        28496    28502    +6     
- Misses      11016    11018    +2     
+ Partials     2455     2454    -1     

Flag	Coverage Δ
unittests	67.90% <100.00%> (+<0.01%)	⬆️

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[songtao98]

/lgtm

[ZiMengSheng]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ZiMengSheng

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