From what I have noticed HoI3 is still only using one core. Additional load when using multiple CPUs usually comes from background applications.
I have rougly 50-60% CPU usage on a dual core, 50% from HoI3, 0-10% from firefox, trillian, AV & alike.
I have rougly 50-60% CPU usage on a dual core, 50% from HoI3, 0-10% from firefox, trillian, AV & alike.