Dune::PDELab::NonoverlappingOperator< GFS, M, X, Y > Class Template Reference

Operator for the non-overlapping parallel case. More...

#include <dune/pdelab/backend/istl/novlpistlsolverbackend.hh>

Public Types
using	matrix_type = Backend::Native< M >
	export type of matrix
using	domain_type = Backend::Native< X >
	export type of vectors the matrix is applied to
using	range_type = Backend::Native< Y >
	export type of result vectors
typedef X::field_type	field_type
	export type of the entries for x

Public Member Functions
	NonoverlappingOperator (const GFS &gfs_, const M &A)
	Construct a non-overlapping operator. More...
virtual void	apply (const X &x, Y &y) const override
	apply operator More...
virtual void	applyscaleadd (field_type alpha, const X &x, Y &y) const override
	apply operator to x, scale and add: \( y = y + \alpha A(x) \) More...
SolverCategory::Category	category () const override
	Category of the linear operator (see SolverCategory::Category)
virtual const M &	getmat () const override
	extract the matrix

Detailed Description

template<typename GFS, typename M, typename X, typename Y>
class Dune::PDELab::NonoverlappingOperator< GFS, M, X, Y >

Operator for the non-overlapping parallel case.

Calculate \(y:=Ax\).

Template Parameters

GFS	The GridFunctionSpace the vectors apply to.
M	Type of the matrix. Should be one of the ISTL matrix types.
X	Type of the vectors the matrix is applied to.
Y	Type of the result vectors.

Constructor & Destructor Documentation

NonoverlappingOperator()

template<typename GFS , typename M , typename X , typename Y >

Dune::PDELab::NonoverlappingOperator< GFS, M, X, Y >::NonoverlappingOperator ( const GFS &  gfs_, const M &  A  )

inline

Construct a non-overlapping operator.

Parameters

gfs_	GridFunctionsSpace for the vectors.
A	Matrix for this operator. This should be the locally assembled matrix.

Note

The constructed object stores references to all the objects given as parameters here. They should be valid for as long as the constructed object is used. They are not needed to destruct the constructed object.

Member Function Documentation

apply()

template<typename GFS , typename M , typename X , typename Y >

virtual void Dune::PDELab::NonoverlappingOperator< GFS, M, X, Y >::apply ( const X &  x, Y &  y  ) const

inlineoverridevirtual

apply operator

Compute \(y:=A(x)\) on this process, then make y consistent (sum up corresponding entries of y on the different processes and store the result back in y on each process).

Implements Dune::LinearOperator< X, Y >.

References Dune::ForwardCommunication, and Dune::InteriorBorder_InteriorBorder_Interface.

applyscaleadd()

template<typename GFS , typename M , typename X , typename Y >

virtual void Dune::PDELab::NonoverlappingOperator< GFS, M, X, Y >::applyscaleadd ( field_type  alpha, const X &  x, Y &  y  ) const

inlineoverridevirtual

apply operator to x, scale and add: \( y = y + \alpha A(x) \)

Compute \(y:=\alpha A(x)\) on this process, then make y consistent (sum up corresponding entries of y on the different processes and store the result back in y on each process).

Implements Dune::LinearOperator< X, Y >.

References Dune::ForwardCommunication, and Dune::InteriorBorder_InteriorBorder_Interface.

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

• dune/pdelab/backend/istl/novlpistlsolverbackend.hh