Esther Schindler writes: "The innovations that are redefining the way businesses compute today were made feasible by supercomputers, the first platforms to enable parallel processing on a scale anywhere close to that of the cloud. Supercomputing would have been a lost art had it not been for the capability of everyday PC processors to be stacked together by the thousands — a technology for the high end made possible at the low end. But now, writes Scott Fulton in an exhaustive technical essay, a looming engineering bottleneck may have already rendered it technically and financially impossible for supercomputers to continue evolving at the current rate. Can the cloud go forward if the “grid” on which it’s based grinds to a halt?"
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