ENH: Add method to Fortran interface accepting light data limit.

Commit patch from Pat Collins allowing light data limit to be set from
Fortran interface.

utils/XdmfPartitioner.cpp

@@ -72,6 +72,7 @@ shared_ptr<XdmfGridCollection>
 XdmfPartitioner::partition(const shared_ptr<XdmfUnstructuredGrid> gridToPartition,
                            const unsigned int numberOfPartitions,
                            const MetisScheme metisScheme,
+                           const shared_ptr<XdmfArray> weights,
                            const shared_ptr<XdmfHeavyDataWriter> heavyDataWriter) const
 {
 

utils/XdmfPartitioner.hpp

@@ -80,6 +80,9 @@ public:
    *
    * @param gridToPartition an XdmfGridUnstructured to partition.
    * @param numberOfPartitions the number of pieces to partition the grid into.
+   * @param metisScheme which metis partitioning scheme to use.
+   * @param weights array of size number of elements giving the weight of 
+   * each element (if NULL all elements have equal weight).
    * @param heavyDataWriter an XdmfHDF5Writer to write the partitioned mesh to.
    * If no heavyDataWriter is specified, all partitioned data will remain in
    * memory.
@@ -90,6 +93,7 @@ public:
   partition(const shared_ptr<XdmfUnstructuredGrid> gridToPartition,
             const unsigned int numberOfPartitions,
             const MetisScheme metisScheme = DUAL_GRAPH,
+            const shared_ptr<XdmfArray> weights = shared_ptr<XdmfArray>(),
             const shared_ptr<XdmfHeavyDataWriter> heavyDataWriter = shared_ptr<XdmfHeavyDataWriter>()) const;
 
   /**