What is Stellar?

Stellar is TauGrid’s experiment tracking and comparison experience. It ships in the taugrid-portal binary and presents run details, scalar metric history, and side-by-side comparisons in a browser or terminal.

What Stellar helps answer

• Which code and settings produced this run?
• How did loss, accuracy, throughput, or another metric change over time?
• Which run performed best?
• Where are the model, checkpoint, and other output files?
• Did the run finish, retry, or resume?

Where the data comes from

TauGrid saves complete metric files and a small experiment index close to the run. Stellar can read that saved evidence directly. A platform can also provide an ADX/Kusto view for searching and comparing runs across workspaces.

adx-mon can move metric samples into ADX, while Stellar reads and presents the result. The saved run files remain available for retrieval and detailed inspection.

Stellar and the Ray dashboard

The Ray dashboard shows live tasks, actors, and workers while a Ray cluster is running. Stellar shows experiment evidence that remains useful after the runtime pods have finished.

Open a local dashboard with:

taugrid-portal experiment stellar <run-name>

Try Live experiment evidence to publish loss and accuracy, retrieve output files, and open the run in Stellar.