block_matrix_writer.hpp File Reference

Writes a possibly scaled block matrix to the system matrix. Includes similar functionality for computing residual contributions. More...

#include <cassert>
#include "viennashe/math/spherical_harmonics.hpp"
#include "viennashe/physics/constants.hpp"

Go to the source code of this file.

Namespaces
namespace	viennashe
	The main ViennaSHE namespace. All functionality resides inside this namespace.
namespace	viennashe::util
	A collection of utilities used within ViennaSHE.

Functions
template<typename SystemMatrixType , typename BlockMatrixType , typename RowIndexIterator , typename ColumnIndexIterator >
void	viennashe::util::add_block_matrix (SystemMatrixType &system_matrix, std::size_t row_index, std::size_t col_index, double prefactor, BlockMatrixType const &coupling_matrix, RowIndexIterator row_iter, ColumnIndexIterator const &col_iter_init, bool elastic_scattering_roundoff_error_prevention=false)
	Writes a sub-matrix of a block matrix 'coupling_matrix' into the global system matrix, scaled by 'prefactor'. More...
template<typename SystemMatrixType , typename BlockMatrixType , typename RowIndexIterator , typename ColumnIndexIterator , typename FoldVectorType >
void	viennashe::util::add_folded_block_matrix (SystemMatrixType &system_matrix, long row_index, long col_index, double prefactor, BlockMatrixType const &coupling_matrix, RowIndexIterator row_iter, ColumnIndexIterator const &col_iter_init, FoldVectorType const &fold_vector, long fold_index_start)
	Writes a sub-matrix of a block matrix 'coupling_matrix' into the global system matrix, scaled by 'prefactor'. The columns are 'folded' (summed, i.e. a matrix-vector product) according to the vector provided. More...
template<typename VectorType , typename BlockMatrixType , typename RowIndexIterator , typename ColumnIndexIterator >
void	viennashe::util::subtract_folded_block_vector (VectorType &residual, std::size_t row_index, double prefactor, BlockMatrixType const &coupling_matrix, RowIndexIterator row_iter, ColumnIndexIterator const &col_iter_init, double const *fold_vector)
	Writes a sub-matrix of a block matrix 'coupling_matrix' to the residual vector. The columns are 'folded' (summed, i.e. a matrix-vector product) according to the vector provided. More...

Detailed Description

Writes a possibly scaled block matrix to the system matrix. Includes similar functionality for computing residual contributions.

Definition in file block_matrix_writer.hpp.