This class implements the pure virtual class Epetra_Operator for the AztecOO iterative solve which only uses the Apply() method to compute the matrix vector product.
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#include <trilinos_impl.h>
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| int | Apply (const Epetra_MultiVector &x, Epetra_MultiVector &y) const |
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| int | SetUseTranspose (bool use_transpose) |
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| int | ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const |
| | Computes A_inv*x.
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| double | NormInf () const |
| | Infinity norm for global stiffness does not add in the boundary term.
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| const char * | Label () const |
| | Returns a character string describing the operator.
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| bool | UseTranspose () const |
| | Returns current UseTranspose setting.
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| bool | HasNormInf () const |
| | Returns true if this object can provide an approx Inf-norm false otherwise.
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| const Epetra_Comm & | Comm () const |
| | Returns pointer to Epetra_Comm communicator associated with this operator.
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| const Epetra_Map & | OperatorDomainMap () const |
| | Returns Epetra_Map object assoicated with domain of this operator.
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| const Epetra_Map & | OperatorRangeMap () const |
| | Returns the Epetra_Map object associated with teh range of this operator.
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This class implements the pure virtual class Epetra_Operator for the AztecOO iterative solve which only uses the Apply() method to compute the matrix vector product.
◆ Apply()
| int TrilinosMatVec::Apply |
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const Epetra_MultiVector & |
x, |
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Epetra_MultiVector & |
y |
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) |
| const |
Define matrix vector operation at each iteration of the linear solver adds on the coupled neuman boundary contribution to the matrix
- Parameters
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| x | vector to be applied on the operator |
| y | result of sprase matrix vector multiplication |
Define the matrix vector multiplication operation to do at each iteration of an iterative linear solver. This function is called by the AztecOO (K + v1*v1' + v2*v2' + ...) x = K*x + v1(v1'x) + v2(v2'*x), where [v1, v2, ...] = bdryVec_list
For coupled Neumann boundary terms (v1*v1', v2*v2'), we use efficient an vectorized operation rather than explicitly forming the rank 1 outer product matrix and adding it to the global stiffness matrix K.
- Parameters
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| x | vector to be applied on the operator |
| y | result of sprase matrix vector multiplication |
◆ ApplyInverse()
| int TrilinosMatVec::ApplyInverse |
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const Epetra_MultiVector & |
X, |
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Epetra_MultiVector & |
Y |
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| const |
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inline |
◆ Comm()
| const Epetra_Comm & TrilinosMatVec::Comm |
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const |
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inline |
Returns pointer to Epetra_Comm communicator associated with this operator.
◆ HasNormInf()
| bool TrilinosMatVec::HasNormInf |
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const |
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inline |
Returns true if this object can provide an approx Inf-norm false otherwise.
◆ Label()
| const char * TrilinosMatVec::Label |
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const |
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inline |
Returns a character string describing the operator.
◆ NormInf()
| double TrilinosMatVec::NormInf |
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const |
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inline |
Infinity norm for global stiffness does not add in the boundary term.
◆ OperatorDomainMap()
| const Epetra_Map & TrilinosMatVec::OperatorDomainMap |
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const |
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inline |
Returns Epetra_Map object assoicated with domain of this operator.
◆ OperatorRangeMap()
| const Epetra_Map & TrilinosMatVec::OperatorRangeMap |
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const |
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inline |
Returns the Epetra_Map object associated with teh range of this operator.
◆ SetUseTranspose()
| int TrilinosMatVec::SetUseTranspose |
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bool |
use_transpose | ) |
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inline |
Tells whether to use the transpose of the matrix in each matrix vector product
◆ UseTranspose()
| bool TrilinosMatVec::UseTranspose |
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const |
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inline |
Returns current UseTranspose setting.
The documentation for this class was generated from the following files:
