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@HuiGao-NV HuiGao-NV commented Nov 5, 2025

Summary by CodeRabbit

  • Refactor
    • Model path resolution updated to support dynamic configuration with environment variable overrides and standardized fallback defaults.

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@HuiGao-NV HuiGao-NV requested review from a team as code owners November 5, 2025 05:26
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📝 Walkthrough

Walkthrough

The PR consolidates the llm_models_root() function from a local module into a centralized utility location. All references across the codebase are updated to import and use this shared implementation, eliminating duplicate definitions.

Changes

Cohort / File(s) Summary
Centralized utility implementation
examples/utils.py
Added new public function llm_models_root(check=False) -> Optional[Path] that determines root path for LLM models with environment variable override support and optional existence validation.
Migration to centralized version
examples/models/core/bert/utils.py
Removed local llm_models_root() definition; added import from utils. Removed unused imports: os and Optional.
Dynamic model path resolution
examples/llm-api/quickstart_example.py
Added import of llm_models_root from utils; replaced hard-coded model string with dynamic path using llm_models_root() prefix.
Test model path updates
tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
Added import of llm_models_root; updated test_worker_extension() and test_cuda_visible_device() to resolve model paths dynamically using f-strings with llm_models_root() instead of hard-coded paths.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

  • Homogeneous changes following a consistent consolidation pattern across files
  • Straightforward function migration with no complex logic modifications
  • Key focus: verify all references are correctly updated to use the centralized implementation and confirm no behavior changes occur

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Description check ⚠️ Warning PR description is incomplete with empty Description and Test Coverage sections; only PR Checklist is checked without substance. Fill in the Description section explaining what changes were made and why, and provide Test Coverage section listing relevant tests that validate the changes.
✅ Passed checks (1 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly summarizes the main objective: centralizing model path resolution to use cached local models. All changes (adding llm_models_root to utils, updating imports, and replacing hardcoded paths) support this primary goal.
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Actionable comments posted: 3

📜 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 cc4aa29 and 2d854c5.

📒 Files selected for processing (4)
  • examples/llm-api/quickstart_example.py (1 hunks)
  • examples/models/core/bert/utils.py (1 hunks)
  • examples/utils.py (1 hunks)
  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py (3 hunks)
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**/*.{h,hpp,hh,hxx,cpp,cxx,cc,cu,cuh,py}

📄 CodeRabbit inference engine (CODING_GUIDELINES.md)

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Files:

  • examples/llm-api/quickstart_example.py
  • examples/utils.py
  • examples/models/core/bert/utils.py
  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
**/*.py

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**/*.py: Python code must target Python 3.8+.
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Files:

  • examples/llm-api/quickstart_example.py
  • examples/utils.py
  • examples/models/core/bert/utils.py
  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
**/*.{cpp,cxx,cc,h,hpp,hh,hxx,cu,cuh,py}

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Files:

  • examples/llm-api/quickstart_example.py
  • examples/utils.py
  • examples/models/core/bert/utils.py
  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
🧠 Learnings (3)
📚 Learning: 2025-07-28T17:06:08.621Z
Learnt from: moraxu
Repo: NVIDIA/TensorRT-LLM PR: 6303
File: tests/integration/test_lists/qa/examples_test_list.txt:494-494
Timestamp: 2025-07-28T17:06:08.621Z
Learning: In TensorRT-LLM testing, it's common to have both CLI flow tests (test_cli_flow.py) and PyTorch API tests (test_llm_api_pytorch.py) for the same model. These serve different purposes: CLI flow tests validate the traditional command-line workflow, while PyTorch API tests validate the newer LLM API backend. Both are legitimate and should coexist.

Applied to files:

  • examples/llm-api/quickstart_example.py
  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
📚 Learning: 2025-08-06T13:58:07.506Z
Learnt from: galagam
Repo: NVIDIA/TensorRT-LLM PR: 6487
File: tests/unittest/_torch/auto_deploy/unit/singlegpu/test_ad_trtllm_bench.py:1-12
Timestamp: 2025-08-06T13:58:07.506Z
Learning: In TensorRT-LLM, test files (files under tests/ directories) do not require NVIDIA copyright headers, unlike production source code files. Test files typically start directly with imports, docstrings, or code.

Applied to files:

  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
📚 Learning: 2025-08-29T14:07:45.863Z
Learnt from: EmmaQiaoCh
Repo: NVIDIA/TensorRT-LLM PR: 7370
File: tests/unittest/trt/model_api/test_model_quantization.py:24-27
Timestamp: 2025-08-29T14:07:45.863Z
Learning: In TensorRT-LLM's CI infrastructure, pytest skip markers (pytest.mark.skip) are properly honored even when test files have __main__ blocks that call test functions directly. The testing system correctly skips tests without requiring modifications to the __main__ block execution pattern.

Applied to files:

  • tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py
🧬 Code graph analysis (4)
examples/llm-api/quickstart_example.py (1)
examples/utils.py (1)
  • llm_models_root (588-601)
examples/utils.py (1)
tests/integration/defs/conftest.py (1)
  • llm_models_root (80-94)
examples/models/core/bert/utils.py (1)
examples/utils.py (1)
  • llm_models_root (588-601)
tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py (1)
examples/utils.py (1)
  • llm_models_root (588-601)
⏰ 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 (4)
examples/llm-api/quickstart_example.py (1)

1-1: LGTM!

The import follows the coding guideline to maintain module namespace.

tests/unittest/_torch/ray_orchestrator/multi_gpu/test_executor.py (2)

29-31: Correct f-string usage, but verify None handling.

The f-string syntax is correct here. However, since llm_models_root() returns a value that could conceptually be None (based on the examples/utils.py implementation), ensure the test environment guarantees a valid path exists, or add appropriate error handling.

Consider adding an assertion at the test module level if not already present:

def setup_module():
    assert llm_models_root() is not None, "LLM_MODELS_ROOT must be configured for tests"

4-4: Fix missing f-string prefix on line 17.

Line 17 uses a plain string "{llm_models_root()}/TinyLlama-1.1B-Chat-v1.0" which won't interpolate the function call. Add the f prefix: f"{llm_models_root()}/TinyLlama-1.1B-Chat-v1.0" to match the correct usage on line 30.

The import from defs.conftest on line 4 is correct and consistent with this file's test configuration.

Likely an incorrect or invalid review comment.

examples/models/core/bert/utils.py (1)

12-12: LGTM! Good consolidation to eliminate duplication.

The import correctly replaces the local implementation with the centralized utility function, following the DRY principle. The usage at line 19 with check=True ensures proper error messaging if the path doesn't exist.

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/bot run --stage-list "DGX_H100-2_GPUs-PyTorch-Ray-1" --extra-stage "A10-PackageSanityCheck-PY310-UB2204-CU12" --disable-fail-fast

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PR_Github #23588 [ run ] triggered by Bot. Commit: 2d854c5

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/bot run --stage-list "DGX_H100-2_GPUs-PyTorch-Ray-1"

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PR_Github #23596 [ run ] triggered by Bot. Commit: ee6542f

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PR_Github #23588 [ run ] completed with state ABORTED. Commit: 2d854c5
LLM/main/L0_MergeRequest_PR #17750 (Blue Ocean) completed with status: ABORTED

@HuiGao-NV HuiGao-NV changed the title [None][Chore] Make more cases use local cached models [None][chore] Make more cases use local cached models Nov 5, 2025
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PR_Github #23596 [ run ] completed with state SUCCESS. Commit: ee6542f
/LLM/main/L0_MergeRequest_PR pipeline #17757 (Partly Tested) completed with status: 'FAILURE'

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/bot run --stage-list "DGX_H100-2_GPUs-PyTorch-Ray-1"

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PR_Github #23644 [ run ] triggered by Bot. Commit: 46f3c33

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PR_Github #23644 [ run ] completed with state SUCCESS. Commit: 46f3c33
/LLM/main/L0_MergeRequest_PR pipeline #17789 (Partly Tested) completed with status: 'FAILURE'

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/bot run --stage-list "DGX_H100-2_GPUs-PyTorch-Ray-1"

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PR_Github #23660 [ run ] triggered by Bot. Commit: 8903508

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PR_Github #23660 [ run ] completed with state SUCCESS. Commit: 8903508
/LLM/main/L0_MergeRequest_PR pipeline #17801 (Partly Tested) completed with status: 'FAILURE'

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/bot run --stage-list "DGX_H100-2_GPUs-PyTorch-Ray-1"

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PR_Github #23687 [ run ] triggered by Bot. Commit: b6d4876

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PR_Github #23687 [ run ] completed with state SUCCESS. Commit: b6d4876
/LLM/main/L0_MergeRequest_PR pipeline #17821 (Partly Tested) completed with status: 'SUCCESS'

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/bot run --post-merge

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PR_Github #23703 [ run ] triggered by Bot. Commit: b6d4876

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/bot run --disable-multi-gpu-test --gpu-type "A30,A10"

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PR_Github #23706 [ run ] triggered by Bot. Commit: b6d4876

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PR_Github #23884 [ run ] completed with state SUCCESS. Commit: 3881a66
/LLM/main/L0_MergeRequest_PR pipeline #17980 (Partly Tested) completed with status: 'FAILURE'

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/bot run --disable-multi-gpu-test --gpu-type "A10" --disable-fail-fast

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PR_Github #23896 [ run ] triggered by Bot. Commit: 6b1423b

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PR_Github #23896 [ run ] completed with state SUCCESS. Commit: 6b1423b
/LLM/main/L0_MergeRequest_PR pipeline #17991 (Partly Tested) completed with status: 'FAILURE'

@HuiGao-NV HuiGao-NV requested a review from EmmaQiaoCh November 10, 2025 05:50
@HuiGao-NV HuiGao-NV requested a review from QiJune November 10, 2025 10:28
@QiJune QiJune requested a review from Superjomn November 10, 2025 11:12
Signed-off-by: Hui Gao <huig@nvidia.com>
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/bot run --disable-multi-gpu-test --gpu-type "A10" --disable-fail-fast

@HuiGao-NV HuiGao-NV changed the title [None][chore] Make more cases use local cached models [https://nvbugs/5616189][fix] Make more cases use local cached models Nov 11, 2025
@HuiGao-NV HuiGao-NV changed the title [https://nvbugs/5616189][fix] Make more cases use local cached models [https://nvbugs/5616189][fix] Make more cases use local cached models Nov 11, 2025
@HuiGao-NV HuiGao-NV enabled auto-merge (squash) November 11, 2025 05:30
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PR_Github #24116 [ run ] triggered by Bot. Commit: 0977926

Signed-off-by: Hui Gao <huig@nvidia.com>
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PR_Github #24116 [ run ] completed with state SUCCESS. Commit: 0977926
/LLM/main/L0_MergeRequest_PR pipeline #18174 (Partly Tested) completed with status: 'FAILURE'

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/bot run --disable-multi-gpu-test --gpu-type "A10" --disable-fail-fast

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PR_Github #24133 [ run ] triggered by Bot. Commit: 6fbcd60

@HuiGao-NV HuiGao-NV disabled auto-merge November 11, 2025 07:58
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LGTM

@HuiGao-NV HuiGao-NV enabled auto-merge (squash) November 11, 2025 08:25
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PR_Github #24133 [ run ] completed with state SUCCESS. Commit: 6fbcd60
/LLM/main/L0_MergeRequest_PR pipeline #18194 (Partly Tested) completed with status: 'SUCCESS'

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/bot skip --comment "Impacted cases have been tested in previous CI"

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PR_Github #24172 [ skip ] triggered by Bot. Commit: 6fbcd60

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PR_Github #24172 [ skip ] completed with state SUCCESS. Commit: 6fbcd60
Skipping testing for commit 6fbcd60

@HuiGao-NV HuiGao-NV merged commit 23c388c into NVIDIA:main Nov 11, 2025
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suyoggupta pushed a commit to nv-auto-deploy/TensorRT-LLM that referenced this pull request Nov 12, 2025
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4 participants