Feel::PreconditionerPetsc< T > Class Template Reference

Petsc preconditioner class. More...

#include <preconditionerpetsc.hpp>

Inheritance diagram for Feel::PreconditionerPetsc< T >:

List of all members.

Public Member Functions
Constructors, destructor
	PreconditionerPetsc (WorldComm const &worldComm=WorldComm())
	default constructor
	PreconditionerPetsc (PreconditionerPetsc const &)
	copy constructor
virtual	~PreconditionerPetsc ()
	destructor
virtual void	clear ()
virtual void	init ()
Operator overloads
PreconditionerPetsc &	operator= (PreconditionerPetsc const &o)
	copy operator
Accessors
PC	pc ()
Methods
virtual void	apply (const Vector< T > &x, Vector< T > &y)
Static Public Member Functions
static void	setPetscSubpreconditionerType (const PCType type, PC &pc, WorldComm const &worldComm=WorldComm())
static void	setPetscFieldSplitPreconditionerType (const PCCompositeType type, const KSPType *subksptypes, const PCType *subpctypes, PC &pc, WorldComm const &worldComm=WorldComm())
Mutators
static void	setPetscPreconditionerType (const PreconditionerType &preconditioner_type, const MatSolverPackageType &matSolverPackage_type, PC &pc, WorldComm const &worldComm=WorldComm())
Public Attributes
PC	M_pc
Mat	M_mat

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Detailed Description

template<typename T>
class Feel::PreconditionerPetsc< T >

Petsc preconditioner class.

Author:

Christophe Prud'homme

See also:

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Member Function Documentation

template<typename T >

void Feel::PreconditionerPetsc< T >::apply	(	const Vector< T > &	x,
		Vector< T > &	y
	)		[virtual]

Computes the preconditioned vector "y" based on input "x". Usually by solving Py=x to get the action of P^-1 x.

Implements Feel::Preconditioner< T >.

template<typename T >

void Feel::PreconditionerPetsc< T >::clear

(

)

[virtual]

Release all memory and clear data structures.

Reimplemented from Feel::Preconditioner< T >.

template<typename T >

void Feel::PreconditionerPetsc< T >::init

(

)

[virtual]

Initialize data structures if not done so already.

Reimplemented from Feel::Preconditioner< T >.

template<typename T >

PC Feel::PreconditionerPetsc< T >::pc

(

)

[inline]

Returns the actual Petsc PC struct. Useful for more advanced purposes

References Feel::PreconditionerPetsc< T >::M_pc.

template<typename T >

void Feel::PreconditionerPetsc< T >::setPetscPreconditionerType	(	const PreconditionerType &	preconditioner_type,
		const MatSolverPackageType &	matSolverPackage_type,
		PC &	pc,
		WorldComm const &	worldComm = WorldComm()
	)		[static]

Tells PETSC to use the user-specified preconditioner

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Member Data Documentation

template<typename T >

Mat Feel::PreconditionerPetsc< T >::M_mat

Petsc Matrix that's been pulled out of the _matrix object. This happens during init...

Referenced by Feel::PreconditionerPetsc< T >::operator=().

template<typename T >

PC Feel::PreconditionerPetsc< T >::M_pc

Preconditioner context

Referenced by Feel::PreconditionerPetsc< T >::operator=(), and Feel::PreconditionerPetsc< T >::pc().