Thanks to the sysadmins at IU, I put up a sample Mercurial OMPI
I converted the entire SVN ompi repository history (/trunk, /tags,
and /branches only) as of r17921. Note that it shows some commits on
the 0.9 branch as the most recent activity only because it converts
the branches in reverse order -- the entire trunk is there as of r17921.
You can clone this repository with the following:
hg clone http://www.open-mpi.org/hg/hgwebdir.cgi/jsquyres/hg/ompi-svn-conversion-r17921/