[oaktowner]

Depends on what you mean by a "real" workload.

Capturing and indexing the entire web is certainly a real workload, even if it is massively psrallelizable, so it would probably run equally well on Google's infrastructure as on a supercomputer because those fast interconnects wouldn't provide much advantage, right?

However,when simulating a nuclear explosion or a weather system (maybe that's what you mean by "real" workloads?), the heavy node-to-node communication makes the supercomputer much, much better suited.