Further overloading this overloaded utility name screws up packagers and hinders usage of any of the variants. Rename it please.
But this does claim to be a reimplementation of much of GNU Parallel's functionality. If it's compatible, maybe there isn't too much of an issue.
In the interest of silly UNIXism, I hereby vote for the name "serial" instead. It's just like "more" and "less", right?