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@hchings hchings commented Jul 17, 2025

Summary by CodeRabbit

  • Bug Fixes
    • Corrected logits post-processing to use proper indexing, preventing potential errors.
  • Tests
    • Re-enabled a previously skipped test for logits processor functionality, now running as part of the regular test suite.

Description

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@hchings hchings requested a review from a team as a code owner July 17, 2025 18:05
@hchings hchings requested a review from Naveassaf July 17, 2025 18:05
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"""

Walkthrough

The changes update the indexing logic used for logits tensor manipulation in the _execute_logit_post_processors method of PyTorchModelEngine, switching from request-based to loop-based indexing. Additionally, a previously skipped integration test for logits processing is now enabled by removing its skip decorator.

Changes

File(s) Change Summary
tensorrt_llm/_torch/pyexecutor/model_engine.py Changed logits tensor indexing in _execute_logit_post_processors from request-based to loop-based.
tests/integration/defs/llmapi/test_llm_examples.py Removed @pytest.mark.skip from test_llmapi_example_logits_processor, enabling the test.

Suggested reviewers

  • Superjomn

Poem

A hop through code, a skip undone,
Indexing shifted—loop’s begun!
Logits now in tidy rows,
The test suite runs, the engine grows.
With every merge, this rabbit cheers—
For code that’s clean and test that clears! 🐇✨
"""


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Reviewing files that changed from the base of the PR and between cbe3453 and 2b4da3d.

📒 Files selected for processing (2)
  • tensorrt_llm/_torch/pyexecutor/model_engine.py (2 hunks)
  • tests/integration/defs/llmapi/test_llm_examples.py (0 hunks)
💤 Files with no reviewable changes (1)
  • tests/integration/defs/llmapi/test_llm_examples.py
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  • tensorrt_llm/_torch/pyexecutor/model_engine.py
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@hchings hchings self-assigned this Jul 17, 2025
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hchings commented Jul 17, 2025

/bot run

@hchings hchings requested a review from syuoni July 17, 2025 18:05
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PR_Github #12228 [ run ] triggered by Bot

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PR_Github #12228 [ run ] completed with state FAILURE
/LLM/main/L0_MergeRequest_PR pipeline #9082 completed with status: 'FAILURE'

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hchings commented Jul 17, 2025

/bot run

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PR_Github #12229 [ run ] triggered by Bot

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PR_Github #12229 [ run ] completed with state FAILURE
/LLM/main/L0_MergeRequest_PR pipeline #9083 completed with status: 'FAILURE'

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hchings commented Jul 17, 2025

/bot run --disable-fail-fast

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PR_Github #12233 [ run ] triggered by Bot

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PR_Github #12233 [ run ] completed with state FAILURE
/LLM/main/L0_MergeRequest_PR pipeline #9087 completed with status: 'FAILURE'

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hchings commented Jul 17, 2025

/bot run --disable-fail-fast

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hchings commented Jul 17, 2025

/bot kill

@venkywonka venkywonka requested review from Copilot and nvpohanh July 17, 2025 20:54
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Pull Request Overview

This PR fixes a bug related to incorrect batch indexing in logits post-processing (NVBug 5385576) and re-enables a previously skipped test that was disabled due to this issue.

  • Corrects indexing logic in logits post-processing to use loop iterator instead of py_batch_idx
  • Re-enables the logits processor test that was previously skipped due to the bug

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File Description
tensorrt_llm/_torch/pyexecutor/model_engine.py Fixed batch indexing in _execute_logit_post_processors method by replacing request.py_batch_idx with loop iterator idx
tests/integration/defs/llmapi/test_llm_examples.py Removed pytest skip decorator from logits processor test, re-enabling it in the test suite

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PR_Github #12236 [ kill ] triggered by Bot

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PR_Github #12236 [ kill ] completed with state SUCCESS
Successfully killed previous jobs for commit 5f42464

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hchings commented Jul 17, 2025

/bot run

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hchings commented Jul 17, 2025

/bot kill

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hchings commented Jul 17, 2025

/bot run

@hchings hchings enabled auto-merge (squash) July 17, 2025 21:00
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PR_Github #12237 [ run ] triggered by Bot

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PR_Github #12237 [ run ] completed with state ABORTED

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PR_Github #12238 [ kill ] completed with state SUCCESS
Successfully killed previous jobs for commit cbe3453

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PR_Github #12239 [ run ] triggered by Bot

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PR_Github #12239 [ run ] completed with state FAILURE
/LLM/main/L0_MergeRequest_PR pipeline #9089 completed with status: 'FAILURE'

Signed-off-by: Erin Ho <[email protected]>
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/bot run

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PR_Github #12246 [ run ] triggered by Bot

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PR_Github #12246 [ run ] completed with state FAILURE
/LLM/main/L0_MergeRequest_PR pipeline #9095 completed with status: 'FAILURE'

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hchings commented Jul 18, 2025

/bot run

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PR_Github #12287 [ run ] triggered by Bot

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PR_Github #12287 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #9126 completed with status: 'SUCCESS'

@hchings hchings merged commit 9522cde into NVIDIA:main Jul 18, 2025
3 checks passed
@hchings hchings deleted the nvbug_5385576 branch July 18, 2025 16:16
reasonsolo pushed a commit to reasonsolo/TensorRT-LLM that referenced this pull request Jul 21, 2025
timlee0212 pushed a commit to timlee0212/TensorRT-LLM that referenced this pull request Jul 21, 2025
NVShreyas pushed a commit to NVShreyas/TensorRT-LLM that referenced this pull request Jul 28, 2025
symphonylyh pushed a commit to symphonylyh/TensorRT-LLM that referenced this pull request Sep 17, 2025
fix: NVBug 5385576 py_batch_idx issue (NVIDIA#6153)

Signed-off-by: Erin Ho <[email protected]>
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