Importance of Metis

[Fabian188]

We build all of our dependencies via external projects. We also build Metis (currently 5.1) including GKlib.

We configure ginkgo with -DMETIS_INCLUDE_DIR and -DMETIS_LIBRARY. However, Ginkgo complains
Could NOT find METIS (missing: METIS_GKLIB_LIBRARY) (found version "5.1")

We can reorder the FEM-system ourselves via Metis before giving it to ginkgo.

Is it worth that I try to squeeze our Metis into ginkgo or doesn't it matter as we reorder manually?

Thanks.

[pratikvn]

If you are re-ordering the matrix before passing it to Ginkgo, then I think it should not matter. I believe we don't have any solvers/preconditioners which implicitly re-order the input data (A, b, x).