Tripped on that condition and now think that it is wrong: constrained

non-Lagrange nodes are eliminated from the system and are therefore
not accessed by any of the local systems. Therefore, the assertion was wrong.

git-svn-id: https://svn.dealii.org/trunk@2338 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/lac/include/lac/sparse_vanka.templates.h b/deal.II/lac/include/lac/sparse_vanka.templates.h
index 3f33a0e4102b7a523beb8240805864a8dd487647..a2abf3c700ac7dabf8348b235f7a97b299b30474 100644 (file)
--- a/deal.II/lac/include/lac/sparse_vanka.templates.h
+++ b/deal.II/lac/include/lac/sparse_vanka.templates.h
@@ -544,11 +544,6 @@ SparseBlockVanka<number>::SparseBlockVanka (const SparseMatrix<number> &M,
                    max_accesses = access_count[block][row];
                    max_access_block = block;
                  };
-                                              // each dof should be
-                                              // accessed by at least
-                                              // one block!
-             Assert (max_accesses > 0, ExcInternalError());
-             
              dof_masks[max_access_block][row] = true;
            };