hmmmmm hard to say.
personally, if i had access to anything like that, i'd forget amigaDE and non-existant Peg3 G5 systems without cluster software, and work on a neural net Artificial Intelligence system instead.
but then you'd prolly have to upgrade your CPUS to handle the network bandwidth required, as sure you got infiniband, but if the CPU's are only able to push 20-40Mb/s to the network then your neural responses are going to be slow as crap.