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[https://nvbugs/5768068][chore] improve disagg acc tests#10833

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pcastonguay merged 6 commits intoNVIDIA:mainfrom
bo-nv:main-improve-acc-test
Jan 22, 2026
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[https://nvbugs/5768068][chore] improve disagg acc tests#10833
pcastonguay merged 6 commits intoNVIDIA:mainfrom
bo-nv:main-improve-acc-test

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@bo-nv bo-nv commented Jan 20, 2026

Summary by CodeRabbit

  • Tests

    • Enhanced accuracy testing infrastructure with consolidated evaluation logic and improved timeout management.
    • Added server health-check mechanism for more reliable server initialization.
  • Chores

    • Improved system detection capabilities for hardware optimization support.
    • Refined timeout handling across evaluation and server startup processes.

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Description

Test Coverage

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Please review the following before submitting your PR:

  • PR description clearly explains what and why. If using CodeRabbit's summary, please make sure it makes sense.

  • PR Follows TRT-LLM CODING GUIDELINES to the best of your knowledge.

  • Test cases are provided for new code paths (see test instructions)

  • Any new dependencies have been scanned for license and vulnerabilities

  • CODEOWNERS updated if ownership changes

  • Documentation updated as needed

  • Update tava architecture diagram if there is a significant design change in PR.

  • The reviewers assigned automatically/manually are appropriate for the PR.

  • Please check this after reviewing the above items as appropriate for this PR.

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Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 20, 2026

/bot run

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coderabbitai bot commented Jan 20, 2026

📝 Walkthrough

Walkthrough

A test file is refactored to introduce two new helper functions: run_accuracy_test consolidates accuracy evaluation logic with timing control and timeout handling, and has_nvlink detects NVLink connectivity. Server readiness checks are added to verify health endpoint responses before executing accuracy tests.

Changes

Cohort / File(s) Summary
Test Infrastructure & Accuracy Evaluation
tests/integration/defs/accuracy/test_disaggregated_serving.py
Added run_accuracy_test() function to centralize accuracy test execution with per-test-set kwargs and timeout enforcement. Added has_nvlink() helper to detect NVLink via nvidia-smi. Introduced server readiness checks in multi_popen that validate health endpoint responses. Replaced scattered task evaluations with consolidated run_accuracy_test() calls. Updated timeout constants: added DEFAULT_ACC_EVALUATION_TIMEOUT and adjusted related timeouts.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 1 | ❌ 2
❌ Failed checks (2 warnings)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check ⚠️ Warning The PR description is incomplete and lacks required content in critical sections (Description, Test Coverage) that must be filled out according to the repository template. Complete the Description section explaining what changes were made and why, and the Test Coverage section listing relevant tests. Replace the template placeholder with actual implementation details.
✅ Passed checks (1 passed)
Check name Status Explanation
Title check ✅ Passed Title directly references NVBugs ticket and clearly summarizes the main change as improving disaggregated accuracy tests through refactoring.

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Actionable comments posted: 0

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (2)
tests/integration/defs/accuracy/test_disaggregated_serving.py (2)

13-13: Add missing Union import and else branch for class test sets.

Union is used in type annotations (lines 113-115) but not imported, causing a NameError. Additionally, the loop at lines 119-123 lacks an else branch, leaving test_set_cls uninitialized when test_set is already a class instead of a string, which will cause a runtime error.

🐛 Proposed fix
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Optional, Union
@@
-    for test_set in test_sets:
-        if isinstance(test_set, str):
-            test_set_cls = get_accuracy_task(test_set)
-        task = test_set_cls(model_name)
+    for test_set in test_sets:
+        if isinstance(test_set, str):
+            test_set_cls = get_accuracy_task(test_set)
+        else:
+            test_set_cls = test_set
+        task = test_set_cls(model_name)

342-349: Add a timeout and broader exception handling to health polling, with logging.

requests.get without a timeout can hang indefinitely, bypassing server_waiting_timeout. Also catch RequestException instead of just ConnectionError to handle all request failures. Add logging on error to match the pattern used elsewhere in the file.

-                response = requests.get(f"http://localhost:{serve_port}/health")
+                response = requests.get(
+                    f"http://localhost:{serve_port}/health", timeout=5)
                 if response.status_code == 200:
                     server_is_ready = True
                     break
-            except requests.exceptions.ConnectionError:
+            except requests.exceptions.RequestException as e:
+                print(f"Health check failed: {e}")
                 continue
🧹 Nitpick comments (2)
tests/integration/defs/accuracy/test_disaggregated_serving.py (2)

29-30: Keep module namespace on accuracy_core imports.

The guideline requires preserving module namespaces; importing individual symbols hides their origin and complicates grep-based tracing. Prefer a module import and reference symbols via the module. As per coding guidelines, maintain namespaces for Python module imports.

♻️ Suggested change (update references accordingly)
-from .accuracy_core import (GSM8K, MMLU, LlmapiAccuracyTestHarness,
-                            get_accuracy_task)
+from . import accuracy_core

111-117: Avoid mutable defaults and reuse the timeout constant.

A mutable list default is easy to trip over later, and the timeout constant is already defined. Consider normalizing both for maintainability.

♻️ Proposed refactor
-def run_accuracy_test(llm: "DuckLLM",
-                      model_name: str,
-                      test_sets: List[Union[str, type]] = ["MMLU", "GSM8K"],
-                      extra_evaluator_kwargs: Optional[Dict[Union[str, type],
-                                                            Dict[str,
-                                                                 Any]]] = None,
-                      timeout: int = 1200):
+def run_accuracy_test(
+        llm: "DuckLLM",
+        model_name: str,
+        test_sets: Optional[List[Union[str, type]]] = None,
+        extra_evaluator_kwargs: Optional[Dict[Union[str, type],
+                                              Dict[str, Any]]] = None,
+        timeout: int = DEFAULT_ACC_EVALUATION_TIMEOUT):
+    if test_sets is None:
+        test_sets = ["MMLU", "GSM8K"]

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PR_Github #32714 [ run ] triggered by Bot. Commit: f61404c

Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 20, 2026

/bot run

Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 20, 2026

/bot run

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PR_Github #32718 [ run ] triggered by Bot. Commit: b98f215

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PR_Github #32720 [ run ] triggered by Bot. Commit: b98f215

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PR_Github #32718 [ run ] completed with state ABORTED. Commit: b98f215

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PR_Github #32720 [ run ] completed with state SUCCESS. Commit: b98f215
/LLM/main/L0_MergeRequest_PR pipeline #25325 completed with status: 'FAILURE'

⚠️ Action Required:

  • Please check the failed tests and fix your PR
  • If you cannot view the failures, ask the CI triggerer to share details
  • Once fixed, request an NVIDIA team member to trigger CI again

Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 20, 2026

/bot run

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PR_Github #32739 [ run ] triggered by Bot. Commit: a753d4d

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PR_Github #32739 [ run ] completed with state SUCCESS. Commit: a753d4d
/LLM/main/L0_MergeRequest_PR pipeline #25339 completed with status: 'FAILURE'

⚠️ Action Required:

  • Please check the failed tests and fix your PR
  • If you cannot view the failures, ask the CI triggerer to share details
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Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 21, 2026

/bot run

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PR_Github #32831 [ run ] triggered by Bot. Commit: 623f0cd

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PR_Github #32831 [ run ] completed with state SUCCESS. Commit: 623f0cd
/LLM/main/L0_MergeRequest_PR pipeline #25403 completed with status: 'FAILURE'

⚠️ Action Required:

  • Please check the failed tests and fix your PR
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/bot run --disable-fail-fast

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PR_Github #32957 [ run ] triggered by Bot. Commit: 623f0cd

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PR_Github #32957 [ run ] completed with state SUCCESS. Commit: 623f0cd
/LLM/main/L0_MergeRequest_PR pipeline #25487 completed with status: 'FAILURE'

⚠️ Action Required:

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@bo-nv can you take a look, the CI tests are failing with UnboundLocalError: cannot access local variable 'test_set_cls' where it is not associated with a value

Signed-off-by: Bo Deng <deemod@nvidia.com>
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bo-nv commented Jan 22, 2026

/bot run --disable-fail-fast

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PR_Github #33032 [ run ] triggered by Bot. Commit: 61d3eed

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PR_Github #33032 [ run ] completed with state SUCCESS. Commit: 61d3eed
/LLM/main/L0_MergeRequest_PR pipeline #25537 completed with status: 'FAILURE'

⚠️ Action Required:

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bo-nv commented Jan 22, 2026

/bot run

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PR_Github #33115 [ run ] triggered by Bot. Commit: 61d3eed

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PR_Github #33115 [ run ] completed with state SUCCESS. Commit: 61d3eed
/LLM/main/L0_MergeRequest_PR pipeline #25596 completed with status: 'SUCCESS'

@pcastonguay pcastonguay merged commit a218cf0 into NVIDIA:main Jan 22, 2026
6 of 7 checks passed
greg-kwasniewski1 pushed a commit to nv-auto-deploy/TensorRT-LLM that referenced this pull request Jan 22, 2026
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