Bitmessage/PyBitmessage — pull request #432 by grant-olson (2013-08-22 16:49:31+00:00)
Title: Eliminate futile multiprocessing

Even if we're on a platform that supports fast PoW calculation, we should use safe PoWs when we're only utilizing a single core. It doesn't make sense to introduce the overhead of multiprocessing when we won't actually parallelize the work. This may have caused PyBitmessage to blow up on a resource-limited VPS.