ConstructPermutation function in src/pcms/field_communicator.h

[Fuad-HH]

In the general case, the RDV partition scheme is independent of the mesh partitioning scheme. However, the current PCMS implementation assumes that the RDV partition matches that of the mesh.

The ConstructPermutation function asserts REDEV_ALWAYS_ASSERT(local_gids.size() == received_gids.size());