One of the things I wanna going to do is build my own ‘micro-cluster’ to play around with MPI (Messaging Passing Interface) stuff…
But… I don’t have a lot of machines, so I gonna use my dual-opteron system for this… My approach is… install and activate a few Xen virtual machines and let them become a cluster. 
But first, I have to solve the 32bit vs 64bit issues. 
I need these kind of technical challenges… at my work they are not really there 
