I thought you could do the following setting and work with it?
Open HFSS
Click on --> tools/options/hfss_options
Then click on SOLVER and on number of processors, put the number of CORES that you have.
ex: if you have one processor with 2 cores put 2
if you have one processor with 4 cores ( quad core ) put 4
if you have TWO processors with dual core Technology than put 4.
It should work fine and speed up the system. A different license is only needed if we have more than one machine running on it.
Won't this work? I have ordered the system and haven't got it yet... so I am not able to check it at the moment.