DUNE-FEM (unstable)
bdmatrix.hh
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1// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
Implementation of the BCRSMatrix class.
Helper functions for determining the vector/matrix block level.
void endrowsizes()
indicate that size of all rows is defined
Definition: bcrsmatrix.hh:1146
void setrowsize(size_type i, size_type s)
Set number of indices in row i to s.
Definition: bcrsmatrix.hh:1114
@ random
Build entries randomly.
Definition: bcrsmatrix.hh:526
void addindex(size_type row, size_type col)
add index (row,col) to the matrix
Definition: bcrsmatrix.hh:1188
void endindices()
indicate that all indices are defined, check consistency
Definition: bcrsmatrix.hh:1269
size_type N() const
number of rows (counted in blocks)
Definition: bcrsmatrix.hh:2001
void setSize(size_type rows, size_type columns, size_type nnz=0)
Set the size of the matrix.
Definition: bcrsmatrix.hh:858
BCRSMatrix & operator=(const BCRSMatrix &Mat)
assignment
Definition: bcrsmatrix.hh:908
typename Imp::BlockTraits< B >::field_type field_type
export the type representing the field
Definition: bdmatrix.hh:39
A::size_type size_type
implement row_type with compressed vector
Definition: bdmatrix.hh:51
BDMatrix(std::initializer_list< B > const &list)
Construct from a std::initializer_list.
Definition: bdmatrix.hh:72
B block_type
export the type representing the components
Definition: bdmatrix.hh:42
void solve(V &x, const V &rhs) const
Solve the system Ax=b in O(n) time.
Definition: bdmatrix.hh:116
BDMatrix & operator=(const BDMatrix &other)
assignment
Definition: bdmatrix.hh:99
void setSize(size_type size)
Resize the matrix. Invalidates the content!
Definition: bdmatrix.hh:81
constexpr std::integral_constant< std::size_t, sizeof...(II)> size(std::integer_sequence< T, II... >)
Return the size of the sequence.
Definition: integersequence.hh:75
Utilities for reduction like operations on ranges.
Implements a scalar matrix view wrapper around an existing scalar.
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