Before running the full simulation

Doing a dry run

By setting dryrun input argument to true, the response-functions mode will initialize the response functions, skip the eventual reference forward simulation, then force the dumps of all response functions control vector file and YAML configuration file.

This mainly allows to count the number response functions (or number of sampling batches of response function).

Only running the first control vector period

By setting first_period_only input argument to true, all response functions that the simulation window start is not datei will be dismissed, resulting in only running the first time period of each tracer in the control vector.

This option is meant to provide a quick estimation of the total computing time required and test if the spin_down input argument value is appropriate.