43#ifndef IFPACK_LOCALFILTER_H
44#define IFPACK_LOCALFILTER_H
53#include "Teuchos_RefCountPtr.hpp"
150 virtual int ExtractMyRowCopy(
int MyRow,
int Length,
int & NumEntries,
double *Values,
int * Indices)
const;
177 if (TransA ==
true) {
250#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
327 return(
Matrix_->LowerTriangular());
333 return(
Matrix_->UpperTriangular());
410 Teuchos::RefCountPtr<const Epetra_RowMatrix>
Matrix_;
419 Teuchos::RefCountPtr<Epetra_Map>
Map_;
#define IFPACK_RETURN(ifpack_err)
#define IFPACK_CHK_ERR(ifpack_err)
Ifpack_LocalFilter a class for light-weight extraction of the submatrix corresponding to local rows a...
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.
virtual double NormInf() const
Returns the infinity norm of the global matrix.
virtual int NumGlobalCols() const
Returns the number of global matrix columns.
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 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 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...
Teuchos::RefCountPtr< Epetra_SerialComm > SerialComm_
Communicator containing this process only.
virtual double NormOne() const
Returns the one norm of the global matrix.
std::vector< int > NumEntries_
NumEntries_[i] contains the nonzero entries in row āiā.
bool UseTranspose_
If true, the tranpose of the local matrix will be used.
virtual bool LowerTriangular() const
If matrix is lower triangular in local index space, this query returns true, otherwise it returns fal...
const Epetra_BlockMap & Map() const
virtual int LeftScale(const Epetra_Vector &)
Scales the Epetra_RowMatrix on the left with a Epetra_Vector x (NOT IMPLEMENTED).
Teuchos::RefCountPtr< const Epetra_RowMatrix > Matrix_
Pointer to the matrix to be preconditioned.
std::vector< int > Indices_
Used in ExtractMyRowCopy, to avoid allocation each time.
int SetOwnership(bool)
Sets ownership.
virtual const Epetra_Map & RowMatrixColMap() const
Returns the Epetra_Map object associated with the columns of this matrix.
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 ApplyInverse(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
virtual int NumMyRows() const
Returns the number of matrix rows owned by the calling processor.
virtual int NumGlobalRows() const
Returns the number of global matrix rows.
int SetUseTranspose(bool UseTranspose_in)
Sets use transpose (not implemented).
int NumNonzeros_
Number of nonzeros in the local matrix.
virtual long long NumGlobalCols64() const
Returns the number of global matrix columns.
virtual int NumMyCols() const
Returns the number of matrix columns owned by the calling processor.
const Epetra_Map & OperatorRangeMap() const
Returns the Epetra_Map object associated with the range of this operator.
bool UseTranspose() const
Returns the current UseTranspose setting.
virtual int NumMyRowEntries(int MyRow, int &NumEntries) const
Returns the number of nonzero entries in MyRow.
const char * Label() const
Teuchos::RefCountPtr< Epetra_Map > Map_
Map based on SerialComm_, containing the local rows only.
virtual int NumGlobalDiagonals() const
Returns the number of global nonzero diagonal entries, based on global row/column index comparisons.
char Label_[80]
Label for this object.
int MaxNumEntriesA_
Maximum number of nonzero entries in a row for Matrix_.
virtual const Epetra_Import * RowMatrixImporter() const
Returns the Epetra_Import object that contains the import operations for distributed operations.
bool HasNormInf() const
Returns true if the this object can provide an approximate Inf-norm, false otherwise.
virtual int ExtractDiagonalCopy(Epetra_Vector &Diagonal) const
Returns a copy of the main diagonal in a user-provided vector.
int NumRows_
Number of rows in the local matrix.
const Epetra_Map & OperatorDomainMap() const
Returns the Epetra_Map object associated with the domain of this operator.
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 int NumMyDiagonals() const
Returns the number of local nonzero diagonal entries, based on global row/column index comparisons.
std::vector< double > Values_
Used in ExtractMyRowCopy, to avoid allocation each time.
virtual bool UpperTriangular() const
If matrix is upper triangular in local index space, this query returns true, otherwise it returns fal...
const Epetra_Comm & Comm() const
Returns a pointer to the Epetra_Comm communicator associated with this operator.
int MaxNumEntries_
Maximum number of nonzero entries in a row for the filtered matrix.
virtual int NumMyNonzeros() const
Returns the number of nonzero entries in the calling processor's portion of the matrix.
virtual long long NumGlobalDiagonals64() const
Returns the number of global nonzero diagonal entries, based on global row/column index comparisons.
virtual ~Ifpack_LocalFilter()
Destructor.
virtual int NumGlobalNonzeros() const
Returns the number of nonzero entries in the global matrix.
virtual int RightScale(const Epetra_Vector &)
Scales the Epetra_RowMatrix on the right with a Epetra_Vector x (NOT IMPLEMENTED).
virtual bool Filled() const
If FillComplete() has been called, this query returns true, otherwise it returns false.
virtual int Apply(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
virtual const Epetra_Map & RowMatrixRowMap() const
Returns the Epetra_Map object associated with the rows of this matrix.
virtual int MaxNumEntries() const
Returns the maximum of NumMyRowEntries() over all rows.
virtual long long NumGlobalRows64() const
Returns the number of global matrix rows.
Teuchos::RefCountPtr< Epetra_Vector > Diagonal_