Make the number of dynamic executor threads configurable via environment variables.

[mzient]

Category:

New feature (non-breaking change which adds functionality)

Description:

According to a request made in a review comment for #5944, this PR adds environment variables that control the number of executor threads: DALI_EXEC2_NUM_THREADS - exact value used for the number of operator threads DALI_EXEC2_MAX_THREADS - the number of threads is min(num_thread, $DALI_EXEC2_NUM_THREADS) where num_thread is the pipeline parameter. DALI_EXEC2_NUM_THREADS takes precendence.

Additional information:

Affected modules and functionalities:

Key points relevant for the review:

Tests:

• [ ] Existing tests apply
• [ ] New tests added
  • [ ] Python tests
  • [ ] GTests
  • [ ] Benchmark
  • [ ] Other
• [X] N/A

Checklist

Documentation

• [ ] Existing documentation applies
• [ ] Documentation updated
  • [ ] Docstring
  • [ ] Doxygen
  • [ ] RST
  • [ ] Jupyter
  • [ ] Other
• [X] N/A

DALI team only

Requirements

• [ ] Implements new requirements
• [ ] Affects existing requirements
• [X] N/A

REQ IDs: N/A

JIRA TASK: N/A

[dali-automaton]

CI MESSAGE: [29892447]: BUILD STARTED

[JanuszL]

Can you please also add this to the documentation?

[mzient]

Can you please also add this to the documentation?

It's so internal that I'd really prefer not to... This should be exposed somehow as a first-class feature, just need to figure out how.

[dali-automaton]

CI MESSAGE: [29892447]: BUILD PASSED