Supercomputers - Does the Cabling Matter?

papaia asks: "Having watched, for a while, the development in the area of high-density server hardware solutions (i.e. blade servers), like IBM's 'top gun', and their increased presence in Data Centers, I have been wondering if anybody has had any experience (thus comments) in regards to how important - in such highly priced solutions - is (or could be) the [always neglected] cabling, connecting the servers. One such comment caught my attention, in this regard. Slashdot, how important is the server cabling infrastructure in your Data Centers, and how do you resolve the cable management aspect of it?"

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[turgid]

Supercomputers are so powerful that they don't need cables. They have super powers and come to life once they get above a certain power. They use nucular X-ray beams to see through walls (and your clothes), they can speak directly to God and space aliens and can predict the lottery numbers. Oh, and they also have telepathy so you don't even need to touch the mouse or click on the Start button.