hdf5-1.6.2 can be compiled with parallel support using sys-cluster/lam-mpi or sys-cluster/mpich. Also, it would be nice to have a virtual for both MPI implementations.. like. (virtual/mpi)
Created attachment 52609 [details, diff] hdf5-1.6.2.ebuild.diff
Created attachment 52610 [details] hdf5-1.6.2.ebuild
Created attachment 52612 [details, diff] hdf5-1.6.2.ebuild.diff
If a virtual its not apropiate DEPEND should have: mpi? || ( sys-cluster/lam-mpi sys-cluster/mpich )
Yeah the cluster team is looking into creating such a virtual.
See bug #44132 about the "virtual" question.
HDF5 (sci-libs/hdf5) 1.6.4 [version bump] - Bug 88112
MPI support added to 1.6.4. Thanks for the tip.