I am running a nonlinear simulation with shrink fit joints. the model has 50K degrees of freedom. I am running on a quad core processor with 8 gig ram with a windows 7 operating system. it doesn't seem to matter whether I am running a direct sparse or iterative analysis, my cpu usage is stuck between 20-30 percent and memory usage is 2+ Gigs. The majority of the task work being done is "solving contact constraints". Is there anything I can do to increase my CPU usage and hopefully solve quicker? I believe the computers potential is not being fully utilized. Thanks in advance.