Before running the full simulation

Doing a dry run

By setting the dryrun argument to true, the response-functions mode initializes the response functions, skips the reference forward simulation, and forces a dump of all response function control vector files and YAML configuration files.

This is mainly useful for counting the number of response functions (or the number of sampling batches).

Only running the first control vector period

By setting the first_period_only argument to true, all response functions whose simulation window does not start at datei are skipped, resulting in only the first time period of each control vector tracer being run.

This option provides a quick estimate of the total computing time and allows testing whether the spin_down value is appropriate.