43 #ifndef IFPACK_METISREORDERING_H 44 #define IFPACK_METISREORDERING_H 46 #include "Ifpack_ConfigDefs.h" 47 #include "Ifpack_Reordering.h" 48 #include "Epetra_RowMatrix.h" 49 #include "Teuchos_ParameterList.hpp" 50 #include "Teuchos_RefCountPtr.hpp" 55 class Epetra_BlockMap;
73 if (Name ==
"partitioner: use symmetric graph")
74 UseSymmetricGraph_ = (bool)Value;
79 virtual int SetParameter(
const std::string Name,
const double Value)
87 UseSymmetricGraph_ = List.get(
"partitioner: use symmetric graph",
97 virtual int Compute(
const Epetra_RowMatrix& Matrix);
106 virtual int Reorder(
const int i)
const;
112 virtual int P(
const Epetra_MultiVector& Xorig,
113 Epetra_MultiVector& X)
const;
116 virtual int Pinv(
const Epetra_MultiVector& Xorig,
117 Epetra_MultiVector& X)
const;
120 virtual std::ostream&
Print(std::ostream& os)
const;
124 bool UseSymmetricGraph_;
130 std::vector<int> Reorder_;
132 std::vector<int> InvReorder_;
136 #endif // IFPACK_METISREORDERING_H virtual int SetParameters(Teuchos::ParameterList &List)
Sets all the parameters for the partitioner (none at moment).
Ifpack_METISReordering: A class to reorder a graph using METIS.
virtual int Pinv(const Epetra_MultiVector &Xorig, Epetra_MultiVector &X) const
Applies inverse reordering to multivector Xorig, whose local length equals the number of local rows...
virtual bool IsComputed() const
Returns true is the reordering object has been successfully initialized, false otherwise.
Ifpack_METISReordering()
Constructor.
Ifpack_Reordering: basic class for reordering for a Ifpack_Graph object.
virtual int SetParameter(const std::string Name, const double Value)
Sets double parameters `Name'.
virtual int Reorder(const int i) const
Returns the reordered index of row i.
virtual int InvReorder(const int i) const
Returns the inverse reordered index of row i.
virtual int Compute(const Ifpack_Graph &Graph)
Computes all it is necessary to initialize the reordering object.
virtual ~Ifpack_METISReordering()
Destructor.
Ifpack_Graph: a pure virtual class that defines graphs for IFPACK.
virtual int SetParameter(const std::string Name, const int Value)
Sets integer parameters `Name'.
virtual int P(const Epetra_MultiVector &Xorig, Epetra_MultiVector &X) const
Applies reordering to multivector Xorig, whose local length equals the number of local rows...
virtual std::ostream & Print(std::ostream &os) const
Prints basic information on iostream. This function is used by operator<<.