43 #ifndef IFPACK_LOCALFILTER_H
44 #define IFPACK_LOCALFILTER_H
46 #include "Ifpack_ConfigDefs.h"
48 #include "Epetra_MpiComm.h"
50 #include "Epetra_SerialComm.h"
52 #include "Epetra_RowMatrix.h"
53 #include "Teuchos_RefCountPtr.hpp"
125 NumEntries = NumEntries_[MyRow];
132 return(MaxNumEntries_);
150 virtual int ExtractMyRowCopy(
int MyRow,
int Length,
int & NumEntries,
double *Values,
int * Indices)
const;
177 if (TransA ==
true) {
181 IFPACK_CHK_ERR(Apply(X,Y));
250 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
254 return(NumNonzeros_);
279 return(NumNonzeros_);
303 return(NumNonzeros_);
327 return(Matrix_->LowerTriangular());
333 return(Matrix_->UpperTriangular());
366 UseTranspose_ = UseTranspose_in;
373 return(UseTranspose_);
385 return(*SerialComm_);
403 const char* Label()
const{
410 Teuchos::RefCountPtr<const Epetra_RowMatrix> Matrix_;
412 Teuchos::RefCountPtr<Epetra_MpiComm> SerialComm_;
415 Teuchos::RefCountPtr<Epetra_SerialComm> SerialComm_;
418 Teuchos::RefCountPtr<Epetra_Map> Map_;
429 std::vector<int> NumEntries_;
431 mutable std::vector<int> Indices_;
433 mutable std::vector<double> Values_;
438 Teuchos::RefCountPtr<Epetra_Vector> Diagonal_;
virtual int ExtractDiagonalCopy(Epetra_Vector &Diagonal) const
Returns a copy of the main diagonal in a user-provided vector.
int SetUseTranspose(bool UseTranspose_in)
Sets use transpose (not implemented).
virtual bool UpperTriangular() const
If matrix is upper triangular in local index space, this query returns true, otherwise it returns fal...
virtual int NumGlobalCols() const
Returns the number of global matrix columns.
Ifpack_LocalFilter(const Teuchos::RefCountPtr< const Epetra_RowMatrix > &Matrix)
Constructor.
virtual long long NumGlobalNonzeros64() const
Returns the number of nonzero entries in the global matrix.
virtual int InvRowSums(Epetra_Vector &) const
Computes the sum of absolute values of the rows of the Epetra_RowMatrix, results returned in x (NOT I...
virtual int NumMyRows() const
Returns the number of matrix rows owned by the calling processor.
virtual int MaxNumEntries() const
Returns the maximum of NumMyRowEntries() over all rows.
virtual int NumGlobalDiagonals() const
Returns the number of global nonzero diagonal entries, based on global row/column index comparisons...
virtual long long NumGlobalDiagonals64() const
Returns the number of global nonzero diagonal entries, based on global row/column index comparisons...
const Epetra_Map & OperatorRangeMap() const
Returns the Epetra_Map object associated with the range of this operator.
virtual const Epetra_Map & RowMatrixRowMap() const
Returns the Epetra_Map object associated with the rows of this matrix.
virtual int InvColSums(Epetra_Vector &) const
Computes the sum of absolute values of the columns of the Epetra_RowMatrix, results returned in x (NO...
virtual int NumGlobalNonzeros() const
Returns the number of nonzero entries in the global matrix.
virtual int NumMyDiagonals() const
Returns the number of local nonzero diagonal entries, based on global row/column index comparisons...
virtual int NumGlobalRows() const
Returns the number of global matrix rows.
virtual int Solve(bool, bool, bool, const Epetra_MultiVector &, Epetra_MultiVector &) const
Returns result of a local-only solve using a triangular Epetra_RowMatrix with Epetra_MultiVectors X a...
virtual int LeftScale(const Epetra_Vector &)
Scales the Epetra_RowMatrix on the left with a Epetra_Vector x (NOT IMPLEMENTED). ...
virtual long long NumGlobalCols64() const
Returns the number of global matrix columns.
Ifpack_LocalFilter a class for light-weight extraction of the submatrix corresponding to local rows a...
virtual int RightScale(const Epetra_Vector &)
Scales the Epetra_RowMatrix on the right with a Epetra_Vector x (NOT IMPLEMENTED).
virtual int NumMyNonzeros() const
Returns the number of nonzero entries in the calling processor's portion of the matrix.
virtual bool Filled() const
If FillComplete() has been called, this query returns true, otherwise it returns false.
const Epetra_Comm & Comm() const
Returns a pointer to the Epetra_Comm communicator associated with this operator.
int SetOwnership(bool)
Sets ownership.
virtual ~Ifpack_LocalFilter()
Destructor.
virtual int NumMyRowEntries(int MyRow, int &NumEntries) const
Returns the number of nonzero entries in MyRow.
virtual int NumMyCols() const
Returns the number of matrix columns owned by the calling processor.
virtual const Epetra_Import * RowMatrixImporter() const
Returns the Epetra_Import object that contains the import operations for distributed operations...
virtual long long NumGlobalRows64() const
Returns the number of global matrix rows.
virtual const Epetra_Map & RowMatrixColMap() const
Returns the Epetra_Map object associated with the columns of this matrix.
virtual bool LowerTriangular() const
If matrix is lower triangular in local index space, this query returns true, otherwise it returns fal...
virtual int Multiply(bool TransA, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
Returns the result of a Epetra_RowMatrix multiplied by a Epetra_MultiVector X in Y.
bool UseTranspose() const
Returns the current UseTranspose setting.
const Epetra_Map & OperatorDomainMap() const
Returns the Epetra_Map object associated with the domain of this operator.
virtual double NormOne() const
Returns the one norm of the global matrix.
virtual int ExtractMyRowCopy(int MyRow, int Length, int &NumEntries, double *Values, int *Indices) const
Returns a copy of the specified local row in user-provided arrays.
virtual double NormInf() const
Returns the infinity norm of the global matrix.
bool HasNormInf() const
Returns true if the this object can provide an approximate Inf-norm, false otherwise.