I finally finished a page where I put some topology maps of some of today’s supercomputers: http://www.unixer.de/research/topologies/. It has no real purpose, but it’s pretty! I hope you like it :-). Please let me know if you have a large system or know admins who are willing to donate topologies for my collection — you’ll get more pretty graphs :-).
Here’s a small preview (Big Read @ IU, housed in the bunker):