Kristoffer, I poked a bit around on dealii.org without really diving into it. I've been using Ansys professionally for around fifteen years, but the difference to the performance we're seeing from games and generally 'out there' is hard to explain. I'm basically very unimpressed with what I'm doing 'most every day. Parallellization works - in theory, but in practice performance on a desktop computer is best with one to four cores on a desktop computer.
Have you tried comparing performance for such problems with, say, Ansys' sparse matrix solver?
