Preconditioner that uses the recent residual to scale the quasi-Newton system.
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#include <ResidualPreconditioner.hpp>
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| ResidualPreconditioner (int maxNonConstTimeWindows) |
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virtual | ~ResidualPreconditioner () |
| Destructor, empty.
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| Preconditioner (int maxNonConstTimeWindows) |
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virtual | ~Preconditioner () |
| Destructor, empty.
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virtual void | initialize (std::vector< size_t > &svs) |
| initialize the preconditioner
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void | apply (Eigen::MatrixXd &M, bool transpose) |
| Apply preconditioner to matrix.
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void | revert (Eigen::MatrixXd &M, bool transpose) |
| Apply inverse preconditioner to matrix.
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void | apply (Eigen::MatrixXd &M) |
| To transform physical values to balanced values. Matrix version.
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void | apply (Eigen::VectorXd &v) |
| To transform physical values to balanced values. Vector version.
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void | revert (Eigen::MatrixXd &M) |
| To transform balanced values back to physical values. Matrix version.
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void | revert (Eigen::VectorXd &v) |
| To transform balanced values back to physical values. Vector version.
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void | update (bool timeWindowComplete, const Eigen::VectorXd &oldValues, const Eigen::VectorXd &res) |
| Update the scaling after every FSI iteration and require a new QR decomposition (if necessary)
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bool | requireNewQR () |
| returns true if a QR decomposition from scratch is necessary
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void | newQRfulfilled () |
| to tell the preconditioner that QR-decomposition has been recomputed
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std::vector< double > & | getWeights () |
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bool | isConst () |
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virtual void | _update_ (bool timeWindowComplete, const Eigen::VectorXd &oldValues, const Eigen::VectorXd &res) |
| Update the scaling after every FSI iteration.
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std::vector< double > | _weights |
| Weights used to scale the matrix V and the residual.
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std::vector< double > | _invWeights |
| Inverse weights (for efficiency reasons)
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std::vector< size_t > | _subVectorSizes |
| Sizes of each sub-vector, i.e. each coupling data.
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int | _maxNonConstTimeWindows |
| maximum number of non-const time windows, i.e., after this number of time windows, the preconditioner is frozen with the current weights and becomes a constant preconditioner
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int | _nbNonConstTimeWindows = 0 |
| Counts the number of completed time windows with a non-const weighting.
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bool | _requireNewQR = false |
| True if a QR decomposition from scratch is necessary.
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bool | _frozen = false |
| True if _nbNonConstTimeWindows >= _maxNonConstTimeWindows, i.e., preconditioner is not updated any more.
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Preconditioner that uses the recent residual to scale the quasi-Newton system.
Definition at line 15 of file ResidualPreconditioner.hpp.
◆ ResidualPreconditioner()
precice::acceleration::impl::ResidualPreconditioner::ResidualPreconditioner |
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int | maxNonConstTimeWindows | ) |
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◆ ~ResidualPreconditioner()
virtual precice::acceleration::impl::ResidualPreconditioner::~ResidualPreconditioner |
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inlinevirtual |
◆ _update_()
void precice::acceleration::impl::ResidualPreconditioner::_update_ |
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bool | timeWindowComplete, |
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const Eigen::VectorXd & | oldValues, |
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const Eigen::VectorXd & | res ) |
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privatevirtual |
◆ _log
logging::Logger precice::acceleration::impl::ResidualPreconditioner::_log {"acceleration::ResidualPreconditioner"} |
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private |
The documentation for this class was generated from the following files: