Ifpack_METISPartitioner.h

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//       Ifpack: Object-Oriented Algebraic Preconditioner Package
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#ifndef IFPACK_METISPARTITIONER_H
#define IFPACK_METISPARTITIONER_H
 
#if defined(Ifpack_SHOW_DEPRECATED_WARNINGS)
#ifdef __GNUC__
#warning "The Ifpack package is deprecated"
#endif
#endif
 
#include "Ifpack_ConfigDefs.h"
#include "Ifpack_Partitioner.h"
#include "Ifpack_OverlappingPartitioner.h"
#include "Teuchos_ParameterList.hpp"
class Ifpack_Graph;
class Epetra_Map;
class Epetra_BlockMap;
class Epetra_Import;
 
 
class Ifpack_METISPartitioner : public Ifpack_OverlappingPartitioner {
 
public:
 
  Ifpack_METISPartitioner(const Ifpack_Graph* Graph) :
    Ifpack_OverlappingPartitioner(Graph),
    UseSymmetricGraph_(true)
  {}
 
  virtual ~Ifpack_METISPartitioner() {};
 
  int SetPartitionParameters(Teuchos::ParameterList& List)
  {
    // `true' is the safest option, as singletons may still be
    // in the system, even after Ifpack_SingletonFilter (think
    // for example to an upper triangular matrix, which has one
    // singleton, and still has one after the elimination of 
    // the first one...)
    UseSymmetricGraph_ = List.get("partitioner: use symmetric graph", 
                  UseSymmetricGraph_);
 
    return(0);
  }
 
  int ComputePartitions();
 
private:
  bool UseSymmetricGraph_;
 
}; // class Ifpack_METISPartitioner
 
#endif // IFPACK_METISPARTITIONER_H