"Running MPI programs on a cluster of commodity hardware" was perhaps a sufficiently novel idea to warrant a unique name back in the 90s, but these days it's mo

"Running MPI programs on a cluster of commodity hardware" was perhaps a sufficiently novel idea to warrant a unique name back in the 90s, but these days it's more or less the standard for all but the most exotic and expensive of scientific computing... and even those expensive custom supercomputers tend to still be x86 processors running MPI code. Basically you don't hear about them any more because it's all Beowulf clusters now.