[Dynamo] Report phase metrics and build Pareto frontiers by podkidyshev · Pull Request #1115 · NVIDIA/cloudai

podkidyshev · 2026-10-23T13:03:08Z

Summary

Expose Dynamo metric observations and Pareto points for each profiling phase. Read AIPerf JSON exports, including total-token throughput per configured user and serving GPU, with CSV support for older AIPerf and GenAI-Perf results.

Test Plan

CI
A single parametrized Dynamo test checks complete inference reports and metric observations against native phase exports. Selected configurations cover replicas, shared nodes, multi-node workers, GPU packing, backend defaults, attention DP, visible GPUs, and command overrides.
Generated three plots from saved vLLM-backed and SGLang-backed Dynamo runs. Verified phase measurements against native JSON exports, including user/GPU normalization and executed configurations.
Checked point inspection, dominated-point toggles, and zoom/reset controls in Chrome.

Additional Notes

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coderabbitai · 2026-10-23T13:03:16Z

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Reviewing files that changed from the base of the PR and between ec6bced and 1784c71.

Files selected for processing: 2

src/cloudai/workloads/ai_dynamo/ai_dynamo.py
tests/workloads/ai_dynamo/test_report_gen_strategy.py

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Walkthrough

AIDynamo now parses AIPerf JSON and CSV results and generates inference reports and metrics for configured benchmark phases. The changes add total-token throughput metrics, phase and benchmark dimensions, configuration migrations, and documentation and tests for phase-specific reporting.

Changes: Dynamo reporting

Layer / File(s)	Summary
Metric contracts and reporting documentation `src/cloudai/metrics.py`, `doc/pareto-frontiers.rst`, `doc/reporting.rst`, `doc/workloads/ai_dynamo.rst`	Adds phase and benchmark dimensions and total-token throughput metrics. Documents Dynamo’s supported result inputs, phase-specific reports, and Pareto-report behavior.
Result parsing and configuration compatibility `src/cloudai/workloads/ai_dynamo/ai_dynamo.py`, `src/cloudai/workloads/ai_dynamo/report_generation_strategy.py`, `tests/workloads/ai_dynamo/test_report_gen_strategy.py`	Parses AIPerf JSON and CSV statistics, migrates legacy configuration values, and rejects reports with missing or non-finite required results. Tests cover result inputs, missing values, and accuracy observations.
Phase-specific inference report generation `src/cloudai/workloads/ai_dynamo/ai_dynamo.py`, `tests/workloads/ai_dynamo/test_report_gen_strategy.py`	Derives worker roles and serving-GPU counts, selects benchmark results, and creates observations and reports for configured phases. Tests cover worker layouts, phase configurations, and metric availability.

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Feature

Merge Risk: Minimal · up to 1784c

Dynamo phase reporting now tolerates malformed or templated parallelism arguments without failing report generation. Serving-GPU normalization is simply omitted in that case. No actionable merge-blocking risk remains from this review.

Pre-merge checks: 4

Check name	Status	Explanation
Title check		The title clearly and concisely describes the main changes: reporting Dynamo phase metrics and building Pareto frontiers.
Description check		The description directly explains the Dynamo metric observations, Pareto points, AIPerf and CSV support, testing, and validation activities.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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podkidyshev · 2026-10-30T15:18:22Z

@coderabbitai full review

coderabbitai · 2026-10-30T15:18:29Z

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Actionable comments posted: 1

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Inline comments:
Review comments at @src/cloudai/workloads/ai_dynamo/ai_dynamo.py:
- Around line 203-209: Update the token-parsing loop in
WorkerConfig.inference_args to process only tokens prefixed with “--” and skip
recognized arguments whose values are not digit strings before converting them
to integers. Preserve the existing alias mapping and value extraction for valid
numeric arguments.

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Source mode: Auto
Repository: NVIDIA/cloudai
Branch: ip/pareto-dynamo
File: .coderabbit.yaml
Commit: ec6bced
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Reviewing files that changed from the base of the PR and between 47c92ab and ec6bced.

Files selected for processing: 9

doc/pareto-frontiers.rst
doc/reporting.rst
doc/workloads/ai_dynamo.rst
src/cloudai/metrics.py
src/cloudai/workloads/ai_dynamo/ai_dynamo.py
src/cloudai/workloads/ai_dynamo/report_generation_strategy.py
tests/report_generation_strategy/test_pareto_report.py
tests/report_generator/test_inference_report.py
tests/workloads/ai_dynamo/test_report_gen_strategy.py

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podkidyshev · 2026-10-30T16:23:10Z

+                continue
+            for key in ("src", "_installed_path"):
+                path = script.get(key)
+                if isinstance(path, str) and path.startswith(("PosixPath(", "WindowsPath(")) and path.endswith(")"):


needed to handle runs, produced by a cloudai with a bug that serializes File as "PosixPath('/a/b/c')" string, causing the metrics parsing to fail (not being able to recognize if aiperf was used or other bench)

there's an internal ticket to fix it

fyi @pavan-penagamuri

Signed-off-by: Ivan Podkidyshev <ipodkidyshev@nvidia.com>

podkidyshev · 2026-10-30T20:53:32Z

/build

Base automatically changed from ip/pareto to main October 26, 2026 17:55

podkidyshev force-pushed the ip/pareto-dynamo branch 3 times, most recently from 9eaa19a to 92d5c53 Compare October 29, 2026 14:02

podkidyshev changed the title ~~[Dynamo] Build Pareto frontiers from all benchmark phases~~ [Dynamo] Report phase metrics and build Pareto frontiers Oct 29, 2026

podkidyshev changed the base branch from main to ip/pareto-refactor October 29, 2026 14:03

podkidyshev force-pushed the ip/pareto-dynamo branch from 92d5c53 to c0eb4d8 Compare October 29, 2026 14:17

podkidyshev added enhancement improvements/extension to an existing feature compatibility-change Changes existing behavior or interfaces; collect upgrade and migration notes for releases. labels Oct 29, 2026

podkidyshev self-assigned this Oct 29, 2026

podkidyshev force-pushed the ip/pareto-dynamo branch from 1f3310a to 87ee69e Compare October 29, 2026 20:25

podkidyshev removed the compatibility-change Changes existing behavior or interfaces; collect upgrade and migration notes for releases. label Oct 29, 2026

podkidyshev mentioned this pull request Oct 30, 2026

Refactor Dynamo benchmark parsing and phase resolution #1124

Open

podkidyshev force-pushed the ip/pareto-dynamo branch from 87ee69e to ec6bced Compare October 30, 2026 14:30

podkidyshev changed the base branch from ip/pareto-refactor to ip/dynamo-pareto-refactor October 30, 2026 14:30

podkidyshev force-pushed the ip/pareto-dynamo branch from ec6bced to 2aea603 Compare October 30, 2026 15:24

coderabbitai Bot reviewed Oct 30, 2026

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Comment thread src/cloudai/workloads/ai_dynamo/ai_dynamo.py Resolved

podkidyshev commented Oct 30, 2026

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podkidyshev force-pushed the ip/pareto-dynamo branch from 3d47817 to 79731e2 Compare October 30, 2026 20:18

Expose Dynamo phase inference reports and total-token metrics

df45bbf

Signed-off-by: Ivan Podkidyshev <ipodkidyshev@nvidia.com>

podkidyshev force-pushed the ip/pareto-dynamo branch from 79731e2 to df45bbf Compare October 30, 2026 20:28

Preserve Dynamo metrics with unresolved parallelism arguments

db7afdd

Signed-off-by: Ivan Podkidyshev <ipodkidyshev@nvidia.com>

podkidyshev marked this pull request as ready for review October 30, 2026 20:40

podkidyshev requested a review from srivatsankrishnan as a code owner October 30, 2026 20:40

podkidyshev requested review from jj10306, pavan-penagamuri and rutayan-nv as code owners October 30, 2026 20:40

podkidyshev added this pull request to stack #1127 October 30, 2026 20:41

github-code-quality Bot found potential problems Oct 30, 2026

View reviewed changes

Comment thread tests/workloads/ai_dynamo/test_report_gen_strategy.py Fixed

Remove redundant module imports from Dynamo report tests

1784c71

Signed-off-by: Ivan Podkidyshev <ipodkidyshev@nvidia.com>

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[Dynamo] Report phase metrics and build Pareto frontiers - #1115

[Dynamo] Report phase metrics and build Pareto frontiers#1115
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