TMatBuilder Class Reference

Base class for building matrices implementing basic management and parallel construction.

#include <TMatBuilder.hh>

Inheritance diagram for TMatBuilder:

Public Member Functions
	TMatBuilder (const bool coarsening=CFG::Arith::coarsen_build)
void	set_coarsening (const bool b)
	(de-) activate coarsening with standard accuracy
void	set_coarsening (const TTruncAcc &acc)
	activate coarsening with accuracy acc
virtual TMatrix *	build (const uint nthreads, const TBlockClusterTree *bct, const TTruncAcc &acc, TProgressBar *progress=NULL) const
	build the H-matrix with block-wise accuracy defined by acc
virtual TMatrix *	build (const uint nthreads, const TBlockCluster *bc, const TTruncAcc &acc, TProgressBar *progress=NULL) const
virtual TMatrix *	build (const uint nthreads, const TBlockClusterTree *cluster, const matform_t matformat, const TTruncAcc &acc, TProgressBar *progress=NULL) const
	same as
virtual TMatrix *	build (const uint nthreads, const TBlockCluster *cluster, const matform_t matformat, const TTruncAcc &acc, TProgressBar *progress=NULL) const
	same as

Protected Member Functions
virtual TMatrix *	thr_build (const uint nthreads, const TBlockCluster *bc, const matform_t matformat, const TTruncAcc &acc, TProgressBar *progress) const
	threaded building process
virtual TBlockMatrix *	build_blocked (const TBlockCluster *bc) const
	build blocked matrix
virtual TMatrix *	build_leaf (const TBlockCluster *bc, const matform_t matformat, const TTruncAcc &acc) const =0
	build matrix corresponding to leaves in the block cluster tree
virtual TMatrix *	build_ghost (const TBlockCluster *bc) const =0
	build placeholder matrix for remote blocks
virtual matform_t	matrix_format () const =0
	return matrix format

Protected Attributes
bool	_coarsening
	if true, coarsening is applied during construction
bool	_use_construct_acc
TTruncAcc	_coarse_acc
	defines coarsening accuracy

Constructor & Destructor Documentation

TMatBuilder

(

const bool

coarsening = CFG::Arith::coarsen_build

)

construct matrix construction object with standard coarsening, e.g. same precision as in block construction

Member Function Documentation

virtual TMatrix* build ( const uint  nthreads, const TBlockCluster *  bc, const TTruncAcc &  acc, TProgressBar *  progress = NULL  ) const

virtual

same as standard

See Also

build, but build block matrices for given block cluster without permutations etc.

virtual TMatrix* build ( const uint  nthreads, const TBlockClusterTree *  cluster, const matform_t  matformat, const TTruncAcc &  acc, TProgressBar *  progress = NULL  ) const

virtual

See Also

build but with user defined matrix format matformat

virtual TMatrix* build ( const uint  nthreads, const TBlockCluster *  cluster, const matform_t  matformat, const TTruncAcc &  acc, TProgressBar *  progress = NULL  ) const

virtual

See Also

build but with user defined matrix format matformat

Member Data Documentation

bool _use_construct_acc

protected

if true, the accuracy during coarsening is identical to the accuracy during block construction (standard accuracy)