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@QiJune QiJune commented Nov 19, 2025

Summary by CodeRabbit

  • New Features

    • Added beam search demonstration capability to the LLM API examples, including command-line support for easy testing.
  • Chores

    • Removed obsolete TODO comments from codebase and documentation.

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@QiJune QiJune requested a review from a team as a code owner November 19, 2025 03:30
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📝 Walkthrough

Walkthrough

This pull request removes TODO comments from three files and adds a new beam search demonstration function to the LLM sampling examples. The demonstration integrates with existing demonstration flows and supports a new "beam" command-line option.

Changes

Cohort / File(s) Summary
Comment removals
cpp/include/tensorrt_llm/runtime/iTensor.h, tensorrt_llm/functional.py, docs/source/deployment-guide/quick-start-recipe-for-gpt-oss-on-trtllm.md
Removed TODO comments from ITensor::getDimension() template, identity() function, and documentation without logic changes
Beam search demonstration
examples/llm-api/llm_sampling.py
Added new demonstrate_beam_search(prompt) function that configures and runs beam search with fixed beam width and max_tokens; integrated into run_all_demonstrations() and CLI with "beam" option

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

  • The three comment removals are trivial changes with no functional impact
  • The new beam search demonstration function is straightforward and follows existing patterns in the codebase
  • Review should focus on verifying the beam search configuration parameters and CLI integration are correct

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Description check ⚠️ Warning The PR description is incomplete. The author provided only the template structure without filling in required sections like 'Description' and 'Test Coverage', making it difficult to understand the change rationale and test strategy. Please fill in the 'Description' section explaining what TODOs were removed and why, and the 'Test Coverage' section documenting any relevant tests for these changes.
✅ Passed checks (2 passed)
Check name Status Explanation
Title check ✅ Passed The title accurately summarizes the main change: cleaning up TODO comments across multiple files (C++ header, documentation, Python examples, and functional module).
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
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Actionable comments posted: 0

🧹 Nitpick comments (1)
examples/llm-api/llm_sampling.py (1)

140-156: Consider printing all beam outputs to better demonstrate beam search.

The function sets n=beam_width=2, which will generate 2 beam search outputs, but only prints the first one (line 155). Similar to how demonstrate_multiple_sequences (lines 136-137) iterates through all outputs to showcase multiple sequences, this function would be more educational if it displayed all beam outputs to better demonstrate beam search results.

Apply this diff to display all beam outputs:

     response = llm.generate(prompt, sampling_params)
     print(f"Prompt: {prompt}")
-    print(f"Response: {response.outputs[0].text}")
+    for i, output in enumerate(response.outputs):
+        print(f"Beam {i+1}: {output.text}")
📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 2cde4e4 and 4869af3.

📒 Files selected for processing (4)
  • cpp/include/tensorrt_llm/runtime/iTensor.h (0 hunks)
  • docs/source/deployment-guide/quick-start-recipe-for-gpt-oss-on-trtllm.md (0 hunks)
  • examples/llm-api/llm_sampling.py (3 hunks)
  • tensorrt_llm/functional.py (0 hunks)
💤 Files with no reviewable changes (3)
  • cpp/include/tensorrt_llm/runtime/iTensor.h
  • docs/source/deployment-guide/quick-start-recipe-for-gpt-oss-on-trtllm.md
  • tensorrt_llm/functional.py
🧰 Additional context used
🧠 Learnings (1)
📓 Common learnings
Learnt from: venkywonka
Repo: NVIDIA/TensorRT-LLM PR: 6029
File: .github/pull_request_template.md:45-53
Timestamp: 2025-08-27T17:50:13.264Z
Learning: For PR templates in TensorRT-LLM, avoid suggesting changes that would increase developer overhead, such as converting plain bullets to mandatory checkboxes. The team prefers guidance-style bullets that don't require explicit interaction to reduce friction in the PR creation process.
🧬 Code graph analysis (1)
examples/llm-api/llm_sampling.py (2)
tensorrt_llm/_torch/pyexecutor/sampler.py (1)
  • beam_width (78-81)
tensorrt_llm/_torch/pyexecutor/model_engine.py (1)
  • use_beam_search (418-419)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)
  • GitHub Check: Pre-commit Check
🔇 Additional comments (3)
examples/llm-api/llm_sampling.py (3)

194-195: LGTM!

The beam search demonstration is correctly integrated into the demonstration flow and receives the appropriate prompt parameter.


209-209: LGTM!

The CLI integration for the beam search demonstration is complete and correct. The "beam" option is properly added to the choices and handled consistently with other demonstration options.

Also applies to: 239-240


221-221: LGTM!

The example in the docstring is helpful and follows the established format, demonstrating the new beam search option effectively.

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LGTM

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