[AsmL] Add number of global unknowns to DOF table.

AssemblerLib/LocalToGlobalIndexMap.h

@@ -71,6 +71,12 @@ public:
     /// Returns total number of degrees of freedom.
     std::size_t dofSize() const;
 
+    /// Returns total number of global degrees of freedom for DDC.
+    std::size_t dofSizeGlobal() const
+    {
+        return _mesh_component_map.getNGlobalUnknowns();
+    }
+
     std::size_t size() const;
 
     RowColumnIndices operator[](std::size_t const mesh_item_id) const;

AssemblerLib/MeshComponentMap.h

@@ -115,6 +115,12 @@ public:
     std::vector<GlobalIndexType> getGlobalIndicesByComponent(
         const std::vector<Location>& ls) const;
 
+    /// Get the number of global unknowns.
+    std::size_t getNGlobalUnknowns() const
+    {
+        return _num_global_dof;
+    }
+
     /// A value returned if no global index was found for the requested
     /// location/component. The value is implementation dependent.
     static GlobalIndexType const nop;
@@ -150,6 +156,9 @@ private:
 
 private:
     detail::ComponentGlobalIndexDict _dict;
+
+    /// Number of global unknowns.
+    std::size_t _num_global_dof = 0;
 };
 
 }   // namespace AssemblerLib