I just did a minor bug-fix release of PLPA v1.3.1 (an off-by-one error
in the plpa-taskset executable). Hopefully, it'll be the last-ever
PLPA release. I have updated the PLPA web site to have big red
notices that it will soon be deprecated in favor of hwloc.
I also filed https://svn.open-mpi.org/trac/hwloc/ticket/4 about adding
embedding capabilities to hwloc, but targeted this at the v1.0
milestone. v0.9.1 won't have PLPA's embedding capabilities.