With all these caveats in mind, a raspberry pi seems to be an incredibly poor choice for distributed computing Exactly. This build sounds like the proverbial

With all these caveats in mind, a raspberry pi seems to be an incredibly poor choice for distributed computing Exactly. This build sounds like the proverbial "1024 chickens" in Seymour Cray's famous analogy. If nothing else, the communications overhead will eat you alive.