Hydra solves the problem of your needing to specify a new output directory for each run, by creating a directory for each run and executing your code within that working directory.
The working directory is used to:
- Store the output for the application (For example, a database dump file)
- Store the Hydra output for the run (Configuration, Logs etc)
Every time you run the app, a new working directory is created:
Let's take a look at one of the working directories:
We have the Hydra output directory (
.hydra by default) and the application log file.
Inside the configuration output directory we have:
config.yaml: A dump of the user specified configuration
hydra.yaml: A dump of the Hydra configuration
overrides.yaml: The command line overrides used
And in the main output directory:
my_app.log: A log file created for this run
You can change the
.hydra subdirectory name by overriding
You can disable its creation by overriding
You can still access the original working directory if you need to:
Working directory can be customized.