[ptp-user] How do I use machine sets?

["Martti Kylmälä" <martti.kylmala@xxxxxx>]

How do I use machine sets? As I understand it they allow you to
choose to use only some of the machines, but when I create a set,
select it and run the program all the nodes are still used. Do I need
to set some setting to order the program to use only certain set? Or
have I understood the whole thing incorrectly?

Martti Kylmälä