concepts::PETScFabric Class Reference

#include <PETScFabric.hh>

Inheritance diagram for concepts::PETScFabric:

Public Member Functions
	PETScFabric (const Real maxeps, const std::string ksptype, const std::string pctype=std::string("none"))
virtual Operator< Real > *	operator() (Operator< Real > &matrix)
virtual Operator< Real > *	operator() ()=0

Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.

Detailed Description

Fabric class for PETSc solvers. Creates a PETScMat if Operator is not a PETScMat and a preconditioner is desired. This may have severe disadvantages:

• It is always memory inefficent.
• It may be O(n^2) slow, if Operator is not Matrix, LiCo, LiCoI or Compose
• It may cause a segmentation fault if the fabric goes out of scope before any of the solvers created like this. Make sure this does not happen.

Author

Christoph Winkelmann, 2004

Definition at line 30 of file PETScFabric.hh.

Constructor & Destructor Documentation

PETScFabric()

concepts::PETScFabric::PETScFabric ( const Real  maxeps, const std::string  ksptype, const std::string  pctype = std::string("none")  )

inline

Constructor.

Parameters

maxeps	Maximal residual
ksptype	Type of Krylov Subspace Solver
pctype	Type of preconditioner

Definition at line 37 of file PETScFabric.hh.

~PETScFabric()

concepts::PETScFabric::~PETScFabric ( )

inline

Definition at line 56 of file PETScFabric.hh.

Member Function Documentation

info()

virtual std::ostream & concepts::PETScFabric::info ( std::ostream &  os ) const

inlineprotectedvirtual

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

Definition at line 63 of file PETScFabric.hh.

operator()() [1/2]

virtual Operator< Real > * concepts::SolverFabric< Real >::operator() ( )

pure virtualinherited

Creates a linear solver from matrix. The caller is responsible for the deletion of the delivered object.

Returns

Reference to the linear solver

Implemented in concepts::UmfpackFabric.

operator()() [2/2]

virtual Operator< Real > * concepts::PETScFabric::operator() ( Operator< Real > &  matrix )

inlinevirtual

Implements concepts::SolverFabric< Real >.

Definition at line 40 of file PETScFabric.hh.

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

• operator/PETScFabric.hh