Ifpack_OverlappingRowMatrix Class Reference

Ifpack_OverlappingRowMatrix: matrix with ghost rows, based on Epetra_RowMatrix. More...

#include <Ifpack_OverlappingRowMatrix.h>

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List of all members.

Public Member Functions

int SetOwnership (bool ownership)
 Sets ownership.
int SetUseTranspose (bool UseTranspose_in)
 Sets use transpose (not implemented).
bool UseTranspose () const
 Returns the current UseTranspose setting.
bool HasNormInf () const
 Returns true if the this object can provide an approximate Inf-norm, false otherwise.
const Epetra_CommComm () const
 Returns a pointer to the Epetra_Comm communicator associated with this operator.
const Epetra_MapOperatorDomainMap () const
 Returns the Epetra_Map object associated with the domain of this operator.
const Epetra_MapOperatorRangeMap () const
 Returns the Epetra_Map object associated with the range of this operator.
const Epetra_BlockMapMap () const
const char * Label () const
int OverlapLevel () const
int ImportMultiVector (const Epetra_MultiVector &X, Epetra_MultiVector &OvX, Epetra_CombineMode CM=Insert)
int ExportMultiVector (const Epetra_MultiVector &OvX, Epetra_MultiVector &X, Epetra_CombineMode CM=Add)

 Ifpack_OverlappingRowMatrix (const Teuchos::RefCountPtr< const Epetra_RowMatrix > &Matrix_in, int OverlapLevel_in)

virtual int NumMyRowEntries (int MyRow, int &NumEntries) const
 Returns the number of nonzero entries in MyRow.
virtual int MaxNumEntries () const
 Returns the maximum of NumMyRowEntries() over all rows.
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 ExtractDiagonalCopy (Epetra_Vector &Diagonal) const
 Returns a copy of the main diagonal in a user-provided vector.

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 int Solve (bool Upper, bool Trans, bool UnitDiagonal, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
 Returns result of a local-only solve using a triangular Epetra_RowMatrix with Epetra_MultiVectors X and Y (NOT IMPLEMENTED).
virtual int Apply (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
virtual int ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
virtual int InvRowSums (Epetra_Vector &x) const
 Computes the sum of absolute values of the rows of the Epetra_RowMatrix, results returned in x (NOT IMPLEMENTED).
virtual int LeftScale (const Epetra_Vector &x)
 Scales the Epetra_RowMatrix on the left with a Epetra_Vector x (NOT IMPLEMENTED).
virtual int InvColSums (Epetra_Vector &x) const
 Computes the sum of absolute values of the columns of the Epetra_RowMatrix, results returned in x (NOT IMPLEMENTED).
virtual int RightScale (const Epetra_Vector &x)
 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 double NormInf () const
 Returns the infinity norm of the global matrix.
virtual double NormOne () const
 Returns the one norm of the global matrix.
virtual int NumGlobalNonzeros () const
 Returns the number of nonzero entries in the global matrix.
virtual int NumGlobalRows () const
 Returns the number of global matrix rows.
virtual int NumGlobalCols () const
 Returns the number of global matrix columns.
virtual int NumGlobalDiagonals () const
 Returns the number of global nonzero diagonal entries, based on global row/column index comparisons.
virtual int NumMyNonzeros () const
 Returns the number of nonzero entries in the calling processor's portion of the matrix.
virtual int NumMyRows () const
 Returns the number of matrix rows owned by the calling processor.
virtual int NumMyCols () const
 Returns the number of matrix columns owned by the calling processor.
virtual int NumMyDiagonals () const
 Returns the number of local nonzero diagonal entries, based on global row/column index comparisons.
virtual bool LowerTriangular () const
 If matrix is lower triangular in local index space, this query returns true, otherwise it returns false.
virtual bool UpperTriangular () const
 If matrix is upper triangular in local index space, this query returns true, otherwise it returns false.
virtual const Epetra_MapRowMatrixRowMap () const
 Returns the Epetra_Map object associated with the rows of this matrix.
virtual const Epetra_MapRowMatrixColMap () const
 Returns the Epetra_Map object associated with the columns of this matrix.
virtual const Epetra_ImportRowMatrixImporter () const
 Returns the Epetra_Import object that contains the import operations for distributed operations.

Detailed Description

Ifpack_OverlappingRowMatrix: matrix with ghost rows, based on Epetra_RowMatrix.

Definition at line 50 of file Ifpack_OverlappingRowMatrix.h.


Member Function Documentation

int Ifpack_OverlappingRowMatrix::ExtractDiagonalCopy ( Epetra_Vector Diagonal  )  const [virtual]

Returns a copy of the main diagonal in a user-provided vector.

Parameters:
Diagonal - (Out) Extracted main diagonal.
Returns:
Integer error code, set to 0 if successful.

Implements Epetra_RowMatrix.

Definition at line 933 of file Ifpack_OverlappingRowMatrix.cpp.

int Ifpack_OverlappingRowMatrix::ExtractMyRowCopy ( int  MyRow,
int  Length,
int &  NumEntries,
double *  Values,
int *  Indices 
) const [virtual]

Returns a copy of the specified local row in user-provided arrays.

Parameters:
MyRow - (In) Local row to extract.
Length - (In) Length of Values and Indices.
NumEntries - (Out) Number of nonzero entries extracted.
Values - (Out) Extracted values for this row.
Indices - (Out) Extracted global column indices for the corresponding values.
Returns:
Integer error code, set to 0 if successful.

Implements Epetra_RowMatrix.

Definition at line 917 of file Ifpack_OverlappingRowMatrix.cpp.

References Epetra_RowMatrix::ExtractMyRowCopy().

Referenced by Multiply().

int Ifpack_OverlappingRowMatrix::Multiply ( bool  TransA,
const Epetra_MultiVector X,
Epetra_MultiVector Y 
) const [virtual]

Returns the result of a Epetra_RowMatrix multiplied by a Epetra_MultiVector X in Y.

Parameters:
TransA -(In) If true, multiply by the transpose of matrix, otherwise just use matrix.
X - (In) A Epetra_MultiVector of dimension NumVectors to multiply with matrix.
Y -(Out) A Epetra_MultiVector of dimension NumVectorscontaining result.
Returns:
Integer error code, set to 0 if successful.

Implements Epetra_RowMatrix.

Definition at line 941 of file Ifpack_OverlappingRowMatrix.cpp.

References ExtractMyRowCopy(), Epetra_MultiVector::NumVectors(), and Epetra_MultiVector::PutScalar().

int Ifpack_OverlappingRowMatrix::NumMyRowEntries ( int  MyRow,
int &  NumEntries 
) const [virtual]

Returns the number of nonzero entries in MyRow.

Parameters:
MyRow - (In) Local row.
NumEntries - (Out) Number of nonzero values present.
Returns:
Integer error code, set to 0 if successful.

Implements Epetra_RowMatrix.

Definition at line 857 of file Ifpack_OverlappingRowMatrix.cpp.


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