Dune Core Modules (2.4.2)

Dune::UMFPack< BCRSMatrix< FieldMatrix< T, n, m >, A > > Class Template Referenceabstract

The UMFPack direct sparse solver for matrices of type BCRSMatrix. More...

#include <dune/istl/umfpack.hh>

Public Types

typedef Dune::BCRSMatrix< FieldMatrix< T, n, m >, A > Matrix
 The matrix type.
 
typedef Dune::ColCompMatrix< MatrixUMFPackMatrix
 The corresponding SuperLU Matrix type.
 
typedef ColCompMatrixInitializer< BCRSMatrix< FieldMatrix< T, n, m >, A > > MatrixInitializer
 Type of an associated initializer class.
 
typedef Dune::BlockVector< FieldVector< T, m >, typename A::template rebind< FieldVector< T, m > >::other > domain_type
 The type of the domain of the solver.
 
typedef Dune::BlockVector< FieldVector< T, n >, typename A::template rebind< FieldVector< T, n > >::other > range_type
 The type of the range of the solver.
 
typedef X::field_type field_type
 The field type of the operator.
 

Public Member Functions

 UMFPack (const Matrix &matrix, int verbose=0)
 Construct a solver object from a BCRSMatrix. More...
 
 UMFPack (const Matrix &matrix, int verbose, bool)
 Constructor for compatibility with SuperLU standard constructor. More...
 
 UMFPack ()
 default constructor
 
 UMFPack (const Matrix &mat_, const char *file, int verbose=0)
 Try loading a decomposition from file and do a decomposition if unsuccessful. More...
 
 UMFPack (const char *file, int verbose=0)
 try loading a decomposition from file More...
 
virtual void apply (domain_type &x, range_type &b, InverseOperatorResult &res)
 Apply inverse operator,. More...
 
virtual void apply (domain_type &x, range_type &b, double reduction, InverseOperatorResult &res)
 apply inverse operator, with given convergence criteria. More...
 
void apply (T *x, T *b)
 additional apply method with c-arrays in analogy to superlu More...
 
void setOption (unsigned int option, double value)
 Set UMFPack-specific options. More...
 
void saveDecomposition (const char *file)
 saves a decomposition to a file More...
 
void setMatrix (const Matrix &matrix)
 Initialize data from given matrix.
 
void setVerbosity (int v)
 sets the verbosity level for the UMFPack solver More...
 
void free ()
 free allocated space. More...
 
virtual void apply (BlockVector< FieldVector< T, m >, A::template rebind< FieldVector< T, m > >::other > &x, BlockVector< FieldVector< T, n >, A::template rebind< FieldVector< T, n > >::other > &b, InverseOperatorResult &res)=0
 Apply inverse operator,. More...
 
virtual void apply (BlockVector< FieldVector< T, m >, A::template rebind< FieldVector< T, m > >::other > &x, BlockVector< FieldVector< T, n >, A::template rebind< FieldVector< T, n > >::other > &b, double reduction, InverseOperatorResult &res)=0
 apply inverse operator, with given convergence criteria. More...
 

Protected Member Functions

void printHeader (std::ostream &s) const
 helper function for printing header of solver output
 
void printOutput (std::ostream &s, const CountType &iter, const DataType &norm, const DataType &norm_old) const
 helper function for printing solver output
 
void printOutput (std::ostream &s, const CountType &iter, const DataType &norm) const
 helper function for printing solver output
 

Detailed Description

template<typename T, typename A, int n, int m>
class Dune::UMFPack< BCRSMatrix< FieldMatrix< T, n, m >, A > >

The UMFPack direct sparse solver for matrices of type BCRSMatrix.

Specialization for the Dune::BCRSMatrix. UMFPack will always go double precision and supports complex numbers too (use std::complex<double> for that).

Template Parameters
TNumber type. Only double and std::complex<double> is supported
ASTL-compatible allocator type
nNumber of rows in a matrix block
mNumber of columns in a matrix block
Note
This will only work if dune-istl has been configured to use UMFPack

Member Function Documentation

◆ apply() [1/2]

virtual void Dune::InverseOperator< BlockVector< FieldVector< T, m >, A::template rebind< FieldVector< T, m > >::other > , BlockVector< FieldVector< T, n >, A::template rebind< FieldVector< T, n > >::other > >::apply ( X &  x,
Y &  b,
double  reduction,
InverseOperatorResult res 
)
pure virtualinherited

apply inverse operator, with given convergence criteria.

Warning
Right hand side b may be overwritten!
Parameters
xThe left hand side to store the result in.
bThe right hand side
reductionThe minimum defect reduction to achieve.
resObject to store the statistics about applying the operator.

◆ apply() [2/2]

virtual void Dune::InverseOperator< BlockVector< FieldVector< T, m >, A::template rebind< FieldVector< T, m > >::other > , BlockVector< FieldVector< T, n >, A::template rebind< FieldVector< T, n > >::other > >::apply ( X &  x,
Y &  b,
InverseOperatorResult res 
)
pure virtualinherited

Apply inverse operator,.

Warning
Note: right hand side b may be overwritten!
Parameters
xThe left hand side to store the result in.
bThe right hand side
resObject to store the statistics about applying the operator.

The documentation for this class was generated from the following file:
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