TMatrixHierarchy::TSparseBlockMatrix Class Reference

Represents a n×m block matrix with only a small number of non-null sub matrices stored in an efficient way.

#include <TMatrixHierarchy.hh>

Public Types
using	block_list_t = std::list< TMatrix * >
using	mat_storage_t = std::list< block_list_t * >
using	list_map_t = std::map< TIndexSet, block_list_t *, TIndexSet::map_cmp_t >

Public Member Functions
	TSparseBlockMatrix ()
	construct block matrix without any submatrices
	~TSparseBlockMatrix ()
	destruct sparse block matrix
TMatrix *	block (const TIndexSet &is0, const TIndexSet &is1)
	access individual submatrix addressed by is0 × is1
TMatrix *	block_containing (const TIndexSet &is0, const TIndexSet &is1)
	return submatrix t×s with is0 × is1 ⊆ t×s
void	insert_block (TMatrix *A)
	insert matrix A into sparse block matrix
const mat_storage_t *	blocks () const
	return sparse block matrix
block_list_t *	block_row (const TIndexSet &is)
	return block row corresponding to indexset is
block_list_t *	block_col (const TIndexSet &is)
	return block column corresponding to indexset is
size_t	byte_size () const
	return size in bytes used by this object
void	print (const uint ofs=0) const
	print content of block matrix

Member Typedef Documentation

block_list_t

list for block rows and columns

list_map_t

mapping of indexsets to block lists

mat_storage_t

storage type for sparse block matrix