Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages > Class Template Reference

Potential all - all communication for mapped data. More...

#include <dune/acfem/common/dofmappertupledatahandle.hh>

Public Member Functions
	DofMapperTupleDataHandle (const MapperType &mapper, const Operation &operation, Storages &... storages)
	Construct the data handle from the given mapper and storage container. More...
bool	contains (int dim, int codim) const
	returns true if data for this codim should be communicated
bool	fixedSize (int dim, int codim) const
	We don't have a fixed-size. More...
template<class Entity >
size_t	size (const Entity &entity) const
	how many objects of type DataItemType have to be sent for a given entity. More...
template<class MessageBuffer , class Entity >
void	gather (MessageBuffer &buff, const Entity &entity) const
	pack data from user to message buffer
template<class MessageBuffer , class Entity >
void	scatter (MessageBuffer &buff, const Entity &entity, size_t n)
	unpack data from message to user buffer

Detailed Description

template<class Mapper, class Operation, class... Storages>
class Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >

Potential all - all communication for mapped data.

Depends on the mapper. Used e.g. to communicate Dirichlet constraints. Stolen from an equivalent class from Dune::FemPy. The most convenient way to generate your DofMapperTupleDataHandle instance is provided by the "generator function" dofMapperTupleDataHandle().

Parameters

Mapper	The type of the mapper to use. Probably from a discrete space.
Storage	A random access container class which allows for indexing with the indices provided by the mapper. In the simplest case this could be a std::vector<> which just has enough space for the size of the mapper.
Operation	A functor which is called in the scatter() method. The items stored in Storage have to support the operation, of course.

Constructor & Destructor Documentation

DofMapperTupleDataHandle()

template<class Mapper , class Operation , class... Storages>

Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >::DofMapperTupleDataHandle ( const MapperType &  mapper, const Operation &  operation, Storages &...  storages  )

inline

Construct the data handle from the given mapper and storage container.

Parameters

[in]	mapper	The dof-mapper. Probably discreteSpace.blockMapper().
[in]	operator	An instance of Operation. Operation must supply an Operation::operator()(dest, src) where dest and src must accepts arguments of the type generated by ContainerTuple::operator[](). Lambdas are allowed, e.g. [](const auto& a, auto& b) { ... }
[in]	storages	Storage container argument pack. The storages are stuffed into a ContainerTuple. In order for this to work they have to supply a random access operator[]().

Member Function Documentation

fixedSize()

template<class Mapper , class Operation , class... Storages>

bool Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >::fixedSize ( int  dim, int  codim  ) const

inline

We don't have a fixed-size.

Depends on the mapper and the number of DoFs on sub-entities.

size()

template<class Mapper , class Operation , class... Storages>

template<class Entity >

size_t Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >::size ( const Entity &  entity ) const

inline

how many objects of type DataItemType have to be sent for a given entity.

Note: Only the sender side needs to know this size.

Referenced by Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >::gather(), and Dune::ACFem::DofMapperTupleDataHandle< Mapper, Operation, Storages >::scatter().

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

• dune/acfem/common/dofmappertupledatahandle.hh