328       DM refTree, ncdm = NULL;  in CreateMesh()  local
330       PetscCall(DMPlexCreateDefaultReferenceTree(comm, dim, simplex, &refTree));  in CreateMesh()
331       PetscCall(DMViewFromOptions(refTree, NULL, "-reftree_dm_view"));  in CreateMesh()
332       PetscCall(DMPlexSetReferenceTree(*dm, refTree));  in CreateMesh()
333       PetscCall(DMDestroy(&refTree));  in CreateMesh()
578   DM          refTree;  in TestInjector()  local
582   PetscCall(DMPlexGetReferenceTree(dm, &refTree));  in TestInjector()
583   if (refTree) {  in TestInjector()
586     PetscCall(DMPlexComputeInjectorReferenceTree(refTree, &inj));  in TestInjector()
598   DM                 dmRedist, dmfv, dmgrad, dmCell, refTree;  in TestFVGrad()  local
642   PetscCall(DMPlexGetReferenceTree(dm, &refTree));  in TestFVGrad()
643   if (refTree) PetscCall(DMCopyDisc(dmfv, refTree));  in TestFVGrad()
819     DM refTree;  in CheckInterpolation()  local
820     PetscCall(DMPlexGetReferenceTree(dm, &refTree));  in CheckInterpolation()
821     PetscCall(DMPlexSetReferenceTree(rdm, refTree));  in CheckInterpolation()