HPC Smackdown: Are Multi-cores really bad for HPC?

Open Discussion: Are the experts to be believed?

Recently there was an article in the IEEE Spectrum stating that Multi-cores are bad for HPC. Maybe. When the first clusters were built, I’m sure it was said that x86 is bad for HPC, but fortunately no one listened. Is this case here? Or, now that HPC is a growing market sector, should vendors be thinking about HPC needs?

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