[skj]

The tendency is for things like lpsolve to be written single-process, because typically when you need to do it once, you need to do it one thousand times, and then your distribution is using each core available to you for a single lpsolve instance.

1000 iterations of an lpsolve invocation running on a single core, is going to run faster than the same number of lpsolve invocations each running on 10 cores.