PETScWrappers::PreconditionNone Class Reference

#include <deal.II/lac/petsc_precondition.h>

Inheritance diagram for PETScWrappers::PreconditionNone:

Classes
struct	AdditionalData

Public Member Functions
	PreconditionNone ()=default
	PreconditionNone (const MatrixBase &matrix, const AdditionalData &additional_data=AdditionalData())
void	initialize (const MatrixBase &matrix, const AdditionalData &additional_data=AdditionalData())
Public Member Functions inherited from PETScWrappers::PreconditionerBase
	PreconditionerBase ()
virtual	~PreconditionerBase ()
void	clear ()
void	vmult (VectorBase &dst, const VectorBase &src) const
const PC &	get_pc () const

Private Attributes
AdditionalData	additional_data

Additional Inherited Members
Protected Member Functions inherited from PETScWrappers::PreconditionerBase
void	create_pc ()
	operator Mat () const
Protected Attributes inherited from PETScWrappers::PreconditionerBase
PC	pc
Mat	matrix

Detailed Description

A class that implements a non-preconditioned method.

Author

Martin Steigemann, 2012

Definition at line 923 of file petsc_precondition.h.

Constructor & Destructor Documentation

PETScWrappers::PreconditionNone::PreconditionNone ( )

default

Empty Constructor. You need to call initialize() before using this object.

PETScWrappers::PreconditionNone::PreconditionNone	(	const MatrixBase &	matrix,
		const AdditionalData &	additional_data = AdditionalData()
	)

Constructor. Take the matrix which is used to form the preconditioner, and additional flags if there are any. The matrix is completely ignored in computations.

Definition at line 660 of file petsc_precondition.cc.

Member Function Documentation

void PETScWrappers::PreconditionNone::initialize	(	const MatrixBase &	matrix,
		const AdditionalData &	additional_data = AdditionalData()
	)

Initialize the preconditioner object and calculate all data that is necessary for applying it in a solver. This function is automatically called when calling the constructor with the same arguments and is only used if you create the preconditioner without arguments. The matrix is completely ignored in computations.

Definition at line 668 of file petsc_precondition.cc.

Member Data Documentation

AdditionalData PETScWrappers::PreconditionNone::additional_data

private

Store a copy of the flags for this particular preconditioner.

Definition at line 962 of file petsc_precondition.h.

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

• deal.II/lac/petsc_precondition.h
• /mnt/data/darndt/Sources/dealii-clang-6.0.0/source/lac/petsc_precondition.cc