basisinterpolationmatrixassembler.hh File Reference

#include <type_traits>
#include <cmath>
#include <vector>
#include <dune/common/exceptions.hh>
#include <dune/common/version.hh>
#include <dune/common/rangeutilities.hh>
#include <dune/assembler/backends/istlmatrixbackend.hh>
#include <dune/typetree/childextraction.hh>
#include <dune/typetree/traversal.hh>

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Functions
template<class MatrixType , class CoarseBasis , class FineBasis >
static void	assembleGlobalBasisTransferMatrix (MatrixType &matrix, const CoarseBasis &coarseBasis, const FineBasis &fineBasis, const double tolerance=1e-12)
	Assemble the transfer matrix for multigrid methods.

Function Documentation

assembleGlobalBasisTransferMatrix()

template<class MatrixType , class CoarseBasis , class FineBasis >

static void assembleGlobalBasisTransferMatrix ( MatrixType &  matrix, const CoarseBasis &  coarseBasis, const FineBasis &  fineBasis, const double  tolerance = 1e-12  )

static

Assemble the transfer matrix for multigrid methods.

The coarse and fine basis has to be related: in a way that the fine grid is descendant of the coarse grid (not necessarily a direct descendant). The two bases are assumed to implement the dune-functions basis interface.

Parameters

[out]	matrix	the matrix corresponding to the basis transfer operator
[in]	coarseBasis	global basis on the coarse grid
[in]	fineBasis	global basis on the fine grid
[in]	tolerance	(optional) interpolation threshold. Default is 1e-12.