In what way? "Beowulf clusters" were built out of off-the-shelf machines connected through relatively normal (if high-speed) networking, running MPI programs on Linux. That's what distinguished them from the more expensive, more custom HPC systems of the day.
In the way of it being a pipe dream relentlessly pursued…in words only…by many nerd types. So much so it turned into a meme during the 90’s. Like someone would mention a hamburger and someone else would say imagine a Beowulf cluster of those.
I kinda doubt ggp’s Plan 9-linked idea has enough legs to take it that far though.
