Just a thought. Why do you not use CUDA?
Dave, thank you for your persistence.
I'm sorry the rate of interesting results is a little low for this target. I know in the past when that happens for me, I look for a simulation that matches only one or two key features of the image. For example, the disk sizes are approximately correct, but nothing else might match. From there though, I'll give it a go in Enhance to see if I can then make a good match. Also, if any particular target gets to feel tedious, you can click the target button in the upper left and try out some of the previous options.
As far as CUDA, we've used it within our research group, where we can guarantee the appropriate graphics cards and drivers are installed. This particular simulation code hasn't been ported to a CUDA implementation yet (though we can run it in C, Fortran, and Java). For now the applet is a bit easier to get working on a wider variety of platforms. Java is by no means on 100% of computers, but more platforms support it than CUDA right now. It's a great toolkit and we plan to use it for other projects and possibly at a later stage in this research.