Package: libscotchmetis-dev Followup-For: Bug #506033 Checking the status of this bug, METIS_PartMesh* is still absent from SCOTCH_Metis.
As far as METIS_WPartGraphKway and METIS_mCPartGraphKway go, these functions do not exist in metis 5.1.0. There is only METIS_PartGraphKway and METIS_PartGraphRecursive, which are already supported in SCOTCH. I can see METIS_WPartGraphKway in old metis 3.0.6 source, and I can see METIS_mCPartGraphKway in metis 4.0.3, but neither are present in metis 5.1.0. It is my intention after the bullseye release to start configuring SCOTCH with SCOTCH_METIS_VERSION=5 (Bug#989783), to better match our version of libmetis-dev.