ILU(0) Preconditioner for matrices of CCDoubleMatrix Format. More...
#include <general_purpose_preconditioners.h>
Public Member Functions | |
ILUZeroPreconditioner () | |
Constructor (empty) More... | |
~ILUZeroPreconditioner () | |
Destructor (empty) More... | |
ILUZeroPreconditioner (const ILUZeroPreconditioner &) | |
Broken copy constructor. More... | |
void | operator= (const ILUZeroPreconditioner &) |
Broken assignment operator. More... | |
void | preconditioner_solve (const DoubleVector &r, DoubleVector &z) |
Apply preconditioner to r. More... | |
void | setup () |
Setup the preconditioner (store diagonal) from the fully assembled matrix. Problem pointer is ignored. More... | |
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Preconditioner () | |
Constructor. More... | |
Preconditioner (const Preconditioner &) | |
Broken copy constructor. More... | |
void | operator= (const Preconditioner &) |
Broken assignment operator. More... | |
virtual | ~Preconditioner () |
Destructor (empty) More... | |
void | setup (DoubleMatrixBase *matrix_pt) |
Setup the preconditioner: store the matrix pointer and the communicator pointer then call preconditioner specific setup() function. More... | |
void | setup (const Problem *problem_pt, DoubleMatrixBase *matrix_pt) |
Compatability layer for old preconditioners where problem pointers were needed. The problem pointer is only used to get a communicator pointer. More... | |
virtual void | clean_up_memory () |
Clean up memory (empty). Generic interface function. More... | |
virtual DoubleMatrixBase * | matrix_pt () const |
Get function for matrix pointer. More... | |
virtual void | set_matrix_pt (DoubleMatrixBase *matrix_pt) |
Set the matrix pointer. More... | |
virtual const OomphCommunicator * | comm_pt () const |
Get function for comm pointer. More... | |
virtual void | set_comm_pt (const OomphCommunicator *const comm_pt) |
Set the communicator pointer. More... | |
double | setup_time () const |
Returns the time to setup the preconditioner. More... | |
virtual void | turn_into_subsidiary_block_preconditioner (BlockPreconditioner< CRDoubleMatrix > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse) |
virtual void | turn_into_subsidiary_block_preconditioner (BlockPreconditioner< CRDoubleMatrix > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse, const Vector< Vector< unsigned > > &doftype_coarsen_map_coarse) |
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DistributableLinearAlgebraObject () | |
Default constructor - create a distribution. More... | |
DistributableLinearAlgebraObject (const DistributableLinearAlgebraObject &matrix) | |
Broken copy constructor. More... | |
void | operator= (const DistributableLinearAlgebraObject &) |
Broken assignment operator. More... | |
virtual | ~DistributableLinearAlgebraObject () |
Destructor. More... | |
LinearAlgebraDistribution * | distribution_pt () const |
access to the LinearAlgebraDistribution More... | |
unsigned | nrow () const |
access function to the number of global rows. More... | |
unsigned | nrow_local () const |
access function for the num of local rows on this processor. More... | |
unsigned | nrow_local (const unsigned &p) const |
access function for the num of local rows on this processor. More... | |
unsigned | first_row () const |
access function for the first row on this processor More... | |
unsigned | first_row (const unsigned &p) const |
access function for the first row on this processor More... | |
bool | distributed () const |
distribution is serial or distributed More... | |
bool | distribution_built () const |
void | build_distribution (const LinearAlgebraDistribution *const dist_pt) |
setup the distribution of this distributable linear algebra object More... | |
void | build_distribution (const LinearAlgebraDistribution &dist) |
setup the distribution of this distributable linear algebra object More... | |
Private Attributes | |
Vector< unsigned > | U_column_start |
Column start for upper triangular matrix. More... | |
Vector< CompressedMatrixCoefficient > | U_row_entry |
Row entry for the upper triangular matrix (each element of the vector contains the row index and coefficient) More... | |
Vector< unsigned > | L_column_start |
Column start for lower triangular matrix. More... | |
Vector< CompressedMatrixCoefficient > | L_row_entry |
Row entry for the lower triangular matrix (each element of the vector contains the row index and coefficient) More... | |
Additional Inherited Members | |
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void | clear_distribution () |
clear the distribution of this distributable linear algebra object More... | |
ILU(0) Preconditioner for matrices of CCDoubleMatrix Format.
Definition at line 285 of file general_purpose_preconditioners.h.
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inline |
Constructor (empty)
Definition at line 291 of file general_purpose_preconditioners.h.
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inline |
Destructor (empty)
Definition at line 294 of file general_purpose_preconditioners.h.
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inline |
Broken copy constructor.
Definition at line 298 of file general_purpose_preconditioners.h.
References oomph::BrokenCopy::broken_copy().
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inline |
Broken assignment operator.
Definition at line 304 of file general_purpose_preconditioners.h.
References oomph::BrokenCopy::broken_assign(), oomph::MatrixBasedDiagPreconditioner::preconditioner_solve(), and oomph::MatrixBasedDiagPreconditioner::setup().
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virtual |
Apply preconditioner to r.
Apply ILU(0) preconditioner for CCDoubleMatrix: Solve Ly=r then Uz=y and return z.
Implements oomph::Preconditioner.
Definition at line 620 of file general_purpose_preconditioners.cc.
References oomph::DoubleVector::built(), oomph::LinearAlgebraDistribution::distributed(), oomph::DistributableLinearAlgebraObject::distribution_pt(), i, and oomph::DistributableLinearAlgebraObject::nrow().
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virtual |
Setup the preconditioner (store diagonal) from the fully assembled matrix. Problem pointer is ignored.
setup ILU(0) preconditioner for Matrices of CCDoubleMatrix type
Implements oomph::Preconditioner.
Definition at line 327 of file general_purpose_preconditioners.cc.
References oomph::DistributableLinearAlgebraObject::build_distribution(), oomph::CCMatrix< T >::column_start(), oomph::Preconditioner::comm_pt(), i, oomph::Preconditioner::matrix_pt(), oomph::CCDoubleMatrix::nrow(), oomph::CCMatrix< T >::row_index(), and oomph::SparseMatrix< T, MATRIX_TYPE >::value().
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private |
Column start for lower triangular matrix.
Definition at line 327 of file general_purpose_preconditioners.h.
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private |
Row entry for the lower triangular matrix (each element of the vector contains the row index and coefficient)
Definition at line 331 of file general_purpose_preconditioners.h.
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private |
Column start for upper triangular matrix.
Definition at line 320 of file general_purpose_preconditioners.h.
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private |
Row entry for the upper triangular matrix (each element of the vector contains the row index and coefficient)
Definition at line 324 of file general_purpose_preconditioners.h.