Dune::UMFPack< M > Class Template Reference

The UMFPack direct sparse solver. More...

#include <dune/istl/umfpack.hh>

Public Types
using	Matrix = M
	The matrix type.
typedef ISTL::Impl::BCCSMatrix< typename Matrix::field_type, long int >	UMFPackMatrix
	The corresponding UMFPack matrix type.
typedef ISTL::Impl::BCCSMatrixInitializer< M, long int >	MatrixInitializer
	Type of an associated initializer class.
using	domain_type = typename Impl::UMFPackVectorChooser< M >::domain_type
	The type of the domain of the solver.
using	range_type = typename Impl::UMFPackVectorChooser< M >::range_type
	The type of the range of the solver.

Public Member Functions
virtual SolverCategory::Category	category () const
	Category of the solver (see SolverCategory::Category)
	UMFPack (const Matrix &matrix, int verbose=0)
	Construct a solver object from a matrix. More...
	UMFPack (const Matrix &matrix, int verbose, bool)
	Constructor for compatibility with SuperLU standard constructor. More...
	UMFPack (const Matrix &mat_, const ParameterTree &config)
	Construct a solver object from a matrix. 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, [[maybe_unused]] 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 *	getFactorization ()
	Return the matrix factorization. More...
UMFPackMatrix &	getInternalMatrix ()
	Return the column compress matrix from UMFPack. More...
void	free ()
	free allocated space. More...

Detailed Description

template<typename M>
class Dune::UMFPack< M >

The UMFPack direct sparse solver.

Details on UMFPack can be found on http://www.cise.ufl.edu/research/sparse/umfpack/

UMFPack will always use double precision. For complex matrices use a matrix type with std::complex<double> as the underlying number type.

Template Parameters

Matrix

the matrix type defining the system

Note

This will only work if dune-istl has been configured to use UMFPack

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

• dune/istl/umfpack.hh