Dune::ParallelScalarProduct< X, C > Class Template Reference

Scalar product for overlapping Schwarz methods. More...

#include <dune/istl/scalarproducts.hh>

Public Types
typedef X	domain_type
	The type of the vector to compute the scalar product on. More...
typedef X::field_type	field_type
	The field type used by the vector type domain_type.
typedef C	communication_type
	The type of the communication object. More...

Public Member Functions
	ParallelScalarProduct (std::shared_ptr< const communication_type > com, SolverCategory::Category cat)
	ParallelScalarProduct (const communication_type &com, SolverCategory::Category cat)
virtual field_type	dot (const X &x, const X &y) const override
	Dot product of two vectors. It is assumed that the vectors are consistent on the interior+border partition.
virtual real_type	norm (const X &x) const override
	Norm of a right-hand side vector. The vector must be consistent on the interior+border partition.
virtual SolverCategory::Category	category () const override
	Category of the scalar product (see SolverCategory::Category)

Detailed Description

template<class X, class C>
class Dune::ParallelScalarProduct< X, C >

Scalar product for overlapping Schwarz methods.

Consistent vectors in interior and border are assumed.

Template Parameters

X	The type of the sequential vector to use for the left hand side, e.g. BlockVector or another type fulfilling the ISTL vector interface.
C	The type of the communication object. This must either be OwnerOverlapCopyCommunication or a type implementing the same interface.

Member Typedef Documentation

communication_type

template<class X , class C >

typedef C Dune::ParallelScalarProduct< X, C >::communication_type

The type of the communication object.

This must either be OwnerOverlapCopyCommunication or a type implementing the same interface.

domain_type

template<class X , class C >

typedef X Dune::ParallelScalarProduct< X, C >::domain_type

The type of the vector to compute the scalar product on.

E.g. BlockVector or another type fulfilling the ISTL vector interface.

Constructor & Destructor Documentation

ParallelScalarProduct() [1/2]

template<class X , class C >

Dune::ParallelScalarProduct< X, C >::ParallelScalarProduct ( std::shared_ptr< const communication_type >  com, SolverCategory::Category  cat  )

inline

Parameters

com	The communication object for syncing overlap and copy data points.
cat	parallel solver category (nonoverlapping or overlapping)

ParallelScalarProduct() [2/2]

template<class X , class C >

Dune::ParallelScalarProduct< X, C >::ParallelScalarProduct ( const communication_type &  com, SolverCategory::Category  cat  )

inline

Parameters

com	The communication object for syncing overlap and copy data points.
cat	parallel solver category (nonoverlapping or overlapping)

Note

if you use this constructor you have to make sure com stays alive

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

• dune/istl/scalarproducts.hh