Wow. Never knew Linux architecture allowed it to scale on hardware in such a way.
Edit : I know Linux is customized to run on a variety of hardware, I was just pointing out that I never knew you could install Ubuntu on the mentioned hardware and have it take advantage of the available hardware, given that it has specialized hardware.
Those are mostly a bazillion nodes with a couple dozen Xeon cores each, wired up together (over a very nice interconnect). Each Linux instance only has to handle the cores for a single node.
That said, I agree with you that it isn't particularly surprising that Linux handles lots of cores fine, it's been run on more esoteric hardware for ages.
