message: ParNCMesh: call sequential refiner when size of comm == 1
diff: @@ -1310,6 +1310,12 @@ void ParNCMesh::Prune()
  void ParNCMesh::Refine(const Array<Refinement> &refinements)
  {
  + if (NRanks == 1)
  + {
  + NCMesh::Refine(refinements);
  + Update();
  + return;
  + }
  for (int i = 0; i < refinements.Size(); i++)
  {
  const Refinement &ref = refinements[i];
  