How to speed up Radioss computation?

Hi all,

I'm doing bicycle brake frictional heat test. Test scenario is a bicycle has constant 12.5 km/hr velocity continued 120 second. In the same time, brake pad press on the brake drum. We want to know during the time the brake drum displacement & temperature. Unit system is "mm kg ms GPa".  I also use solver keyword "-mpi -np 4 " but computation time still need a lot of time. Please someone help me to correct this case.

Thanks!