[AutoDeploy] fix: proper process group clean up

[lucaslie]

Better clean-up of process groups to avoid warnings at the end of pipeline

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[lucaslie]

/bot run

[Copilot]

Pull Request Overview

Improve distributed process group cleanup to prevent end-of-pipeline warnings.

• Introduce a centralized cleanup() function in common.py.
• Register cleanup() on program exit and invoke it in init/finally and stop handlers.
• Add a destructor in demollm.py to shut down executors and call cleanup().

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
tensorrt_llm/_torch/auto_deploy/shim/demollm.py	Added __del__ to shut down executor and invoke dist_ad.cleanup
tensorrt_llm/_torch/auto_deploy/distributed/common.py	Added cleanup(), registered it with atexit, and invoked on exit and stop finalization

Comments suppressed due to low confidence (1)

tensorrt_llm/_torch/auto_deploy/distributed/common.py:147

• Missing import for 'atexit'—this will cause a NameError at runtime. Add import atexit at the top of the module.

atexit.register(cleanup)

[tensorrt-cicd]

PR_Github #5416 [ run ] triggered by Bot

[tensorrt-cicd]

PR_Github #5416 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #3953 completed with status: 'SUCCESS'

[suyoggupta]

nice