Data cubes can be processed in parallel where one thread processes one chunk at a time. Setting more threads
than the number of chunks of a cube thus has no effect and will not further reduce computation times.
Caching has no effect on disk or memory consumption,
it simply tries to reuse existing temporary files where possible.
For example, changing only parameters to plot
will not require
rerunning the full data cube operation chain.
Passing no arguments will return the current options as a list.