Google employee here, xmanger is one of the main ML experiment tracking/orchestration tool we use internally, I'm pretty excited that it is now available for other to use!

In a nutshell, xmanager allows you to:

- define an experiment, which is a collection of one or more work units (think combination of hyperparamters)

- manage the different jobs/executable required to run this experiment (TPU workers, tensorboard job, etc.)

- collect and display measurements from work units (loss, other metrics)

- keep a reproducible artifact which allows you to re-run the same experiment at any point in the future

See e.g. https://github.com/deepmind/xmanager/blob/main/examples/ for a few concrete examples of a launcher scripts.

I wish they had included screenshots of the tool itself in the repo, I'll make that suggestion :).

It's great this is open sourced. This technology was key to enabling ML folks to scale up computation without having to deal with borg and a bunch of other low-level systems.

It's one of the few systems in ML that I've used and thought "huh, this was well-designed and properly architected from the start"