[BUG]: MonitorStage should not set pe_count option

[yczhang-nv]

Version

25.02

Which installation method(s) does this occur on?

No response

Describe the bug.

MonitorStage should not set pe_count option since it should be ran as single-threaded

Minimum reproducible example

Relevant log output

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Full env printout

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Other/Misc.

No response

Code of Conduct

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• I have searched the open bugs and have found no duplicates for this bug report