charm : Charm++ is a message-passing parallel language and runtime system. ( http://charm.cs.uiuc.edu/ )
parallel : A shell tool for executing jobs in parallel locally or using remote machines ( http://www.gnu.org/software/parallel/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a dberkholz
For Paludis use this rsync : rsync://gentoo.zugaina.org/dberkholz-portage
If you have a problem : ycarus(-at-)zugaina.org