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Reference documentation for deal.II version 8.1.0
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#include <trilinos_precondition.h>
Classes | |
struct | AdditionalData |
Public Member Functions | |
void | initialize (const SparseMatrix &matrix, const AdditionalData &additional_data=AdditionalData()) |
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PreconditionBase () | |
PreconditionBase (const PreconditionBase &) | |
~PreconditionBase () | |
void | clear () |
virtual void | vmult (VectorBase &dst, const VectorBase &src) const |
virtual void | Tvmult (VectorBase &dst, const VectorBase &src) const |
virtual void | vmult (::Vector< double > &dst, const ::Vector< double > &src) const |
virtual void | Tvmult (::Vector< double > &dst, const ::Vector< double > &src) const |
virtual void | vmult (::parallel::distributed::Vector< double > &dst, const ::parallel::distributed::Vector< double > &src) const |
virtual void | Tvmult (::parallel::distributed::Vector< double > &dst, const ::parallel::distributed::Vector< double > &src) const |
DeclException1 (ExcNonMatchingMaps, std::string,<< "The sparse matrix the preconditioner is based on "<< "uses a map that is not compatible to the one in vector "<< arg1<< ". Check preconditioner and matrix setup.") | |
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Subscriptor () | |
Subscriptor (const Subscriptor &) | |
virtual | ~Subscriptor () |
Subscriptor & | operator= (const Subscriptor &) |
void | subscribe (const char *identifier=0) const |
void | unsubscribe (const char *identifier=0) const |
unsigned int | n_subscriptions () const |
void | list_subscribers () const |
DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects.\n"<< "(Additional information: "<< arg3<< ")\n"<< "Note the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "more information on what this error means.") | |
DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier \""<< arg2<< "\" did subscribe to this object of class "<< arg1) | |
template<class Archive > | |
void | serialize (Archive &ar, const unsigned int version) |
Additional Inherited Members | |
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typedef ::types::global_dof_index | size_type |
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std_cxx1x::shared_ptr < Epetra_Operator > | preconditioner |
Epetra_MpiComm | communicator |
std_cxx1x::shared_ptr< Epetra_Map > | vector_distributor |
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 231 of file trilinos_precondition.h.
void TrilinosWrappers::PreconditionJacobi::initialize | ( | const SparseMatrix & | matrix, |
const AdditionalData & | additional_data = AdditionalData() |
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Take the sparse matrix the preconditioner object should be built of, and additional flags (damping parameter, etc.) if there are any.