The end of April saw the posting of a
complex patch set called “Popcorn
Linux distributed thread execution”. It is the first appearance on the
kernel mailing lists of an
academic project (naturally called Popcorn
Linux) that has been underway since 2013 or so. This project has,
among other goals, the objective of turning a tightly networked set of
computers into something that looks like a single system — a sort of NUMA
machine with even larger than usual inter-node costs. The posted code,
which is a portion of the larger project, is focused on process migration
and memory sharing across machines. It is an interesting proof of concept,
but one should not expect to see it merged in anything close to its current
form.

Source: LWN.net – [$] Popcorn Linux pops up on linux-kernel