README.md

title	nsys-llm-explainer — Instant Nsight Trace Analyzer for Cloud LLM Inference
emoji	📈
colorFrom	blue
colorTo	green
sdk	gradio
python_version	3.10
app_file	app.py
pinned	false

nsys-llm-explainer — Instant Nsight Trace Analyzer for Cloud LLM Inference

This folder is a production-ready Hugging Face Space payload for the nsys-llm-explainer project.

It turns an uploaded trace.sqlite, .db, or report.json into:

• Prioritized findings with evidence and recommendations
• Kernel, NCCL, barrier, and launch-latency summaries
• NVLink-over-NCCL correlation when GPU metrics are available
• Markdown preview of the full report
• Downloadable report.md, report.json, CSV tables, and a zip bundle

Files

• app.py: Gradio app entrypoint
• space_utils.py: analysis and artifact helpers
• requirements.txt: Space dependencies

Deploy on Hugging Face Spaces

1. Create a new Space using the Gradio SDK.
2. Copy the contents of this folder into the Space repository root.
3. Keep requirements.txt in place so the Space installs the analyzer package and Gradio runtime.
4. Push the repo. Hugging Face will build the Space automatically.
5. Open the app and upload a trace.sqlite or report.json.

Duplicate and pin

If you want a reproducible Space, keep the Git dependency pinned to a release tag in requirements.txt.

If you want the Space to follow the latest main branch instead, change:

git+https://github.com/KOKOSde/nsys-llm-explainer.git@v0.3.3

to:

git+https://github.com/KOKOSde/nsys-llm-explainer.git@main

Operational notes

• The app works with uploaded SQLite exports directly, so there is no need to pre-generate artifacts.
• If a trace is missing NCCL or GPU metrics tables, the UI still loads and explains which analyses are unavailable.
• For private traces, use a private Space.

Local run

From this repository root:

PYTHONPATH=src python3 spaces/hf_space/app.py

If you are running the folder standalone, first install the dependencies from requirements.txt.