Say "bunch" and attempt to make your brain from images of huge, government-financed technological software or herds of caffeinated drinks-supported grad college students. Pretty hard. However, the vast majority of good performance processing (HPC) clusters are nowhere near big enough to be eligible as huge, are utilized in commercial situations, and run on Gigabit Ethernet interconnects. Even inside the TOP500® Supercomputer Sites 31320 5 the number of clusters jogging Gigabit Ethernet is much more than twice the number of clusters working InfiniBand. Definitely, higher rate and minimize latency can be good for almost any installing. Nevertheless the functionality specifications for the majority of software just don’t worth our prime cost and labor-extensive maintenance of InfiniBand.