TrilinosWrappers::PreconditionJacobi Class Reference

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

Inheritance diagram for TrilinosWrappers::PreconditionJacobi:

Classes
struct	AdditionalData

Public Types
using	size_type = ::types::global_dof_index

Public Member Functions
void	initialize (const SparseMatrix &matrix, const AdditionalData &additional_data=AdditionalData())
void	clear ()
MPI_Comm	get_mpi_communicator () const
void	transpose ()
virtual void	vmult (MPI::Vector &dst, const MPI::Vector &src) const
virtual void	vmult (::Vector< double > &dst, const ::Vector< double > &src) const
virtual void	vmult (::LinearAlgebra::distributed::Vector< double > &dst, const ::LinearAlgebra::distributed::Vector< double > &src) const
virtual void	Tvmult (MPI::Vector &dst, const MPI::Vector &src) const
virtual void	Tvmult (::Vector< double > &dst, const ::Vector< double > &src) const
virtual void	Tvmult (::LinearAlgebra::distributed::Vector< double > &dst, const ::LinearAlgebra::distributed::Vector< double > &src) const
Access to underlying Trilinos data
Epetra_Operator &	trilinos_operator () const

Partitioners
IndexSet	locally_owned_domain_indices () const
IndexSet	locally_owned_range_indices () const
Teuchos::RCP< Epetra_Operator >	preconditioner
Epetra_MpiComm	communicator
std::shared_ptr< Epetra_Map >	vector_distributor
static ::ExceptionBase &	ExcNonMatchingMaps (std::string arg1)

Subscriptor functionality
Classes derived from Subscriptor provide a facility to subscribe to this object. This is mostly used by the SmartPointer class.
void	subscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
void	unsubscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
unsigned int	n_subscriptions () const
template<typename StreamType >
void	list_subscribers (StreamType &stream) const
void	list_subscribers () const
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)
using	map_value_type = decltype(counter_map)::value_type
using	map_iterator = decltype(counter_map)::iterator
std::atomic< unsigned int >	counter
std::map< std::string, unsigned int >	counter_map
std::vector< std::atomic< bool > * >	validity_pointers
const std::type_info *	object_info
static std::mutex	mutex
void	check_no_subscribers () const noexcept

Detailed Description

A wrapper class for a (pointwise) Jacobi preconditioner for Trilinos matrices. This preconditioner works both in serial and in parallel, depending on the matrix it is based on.

The AdditionalData data structure allows to set preconditioner options. For the Jacobi preconditioner, these options are the damping parameter omega and a min_diagonal argument that can be used to make the preconditioner work even if the matrix contains some zero elements on the diagonal. The default settings are 1 for the damping parameter and zero for the diagonal augmentation.

Definition at line 263 of file trilinos_precondition.h.

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

• include/deal.II/lac/trilinos_precondition.h
• source/lac/trilinos_precondition.cc