Zoltan2 Hypergraph model assumes contiguous GID number from base 1
Created by: kddevin
Zoltan2's hypergraph model assumes global IDs of entities are numbered contiguously from base 1. Variable numGlobalVertices_ is set to the global maximum GID value. When global IDs are not numbered contiguously or from base 1, this computation is incorrect.
Also, the Tpetra::Maps used in building the hypergraph model use indexBase=0. I think they could be more efficient for the non-contiguous case if the minimum ID were computed and used in the Map constructors.
@trilinos/zoltan2