
Public Member Functions | |
| MGTransferBlockBase () | |
| MGTransferBlockBase (const ConstraintMatrix &constraints, const MGConstrainedDoFs &mg_constrained_dofs) | |
| std::size_t | memory_consumption () const |
Protected Member Functions | |
| template<int dim, int spacedim> | |
| void | build_matrices (const DoFHandler< dim, spacedim > &dof, const MGDoFHandler< dim, spacedim > &mg_dof) |
Static Protected Member Functions | |
| ::ExceptionBase & | ExcMatricesNotBuilt () |
Protected Attributes | |
| std::vector< bool > | selected |
| unsigned int | n_mg_blocks |
| std::vector< unsigned int > | mg_block |
| std::vector< std::vector < unsigned int > > | sizes |
| std::vector< unsigned int > | block_start |
| std::vector< std::vector < unsigned int > > | mg_block_start |
| std::vector < std_cxx1x::shared_ptr < BlockSparseMatrix< double > > > | prolongation_matrices |
| std::vector< std::vector < std::vector< std::pair < unsigned int, unsigned int > > > > | copy_indices |
| SmartPointer< const ConstraintMatrix, MGTransferBlockBase > | constraints |
| SmartPointer< const MGConstrainedDoFs, MGTransferBlockBase > | mg_constrained_dofs |
Private Attributes | |
| std::vector < std_cxx1x::shared_ptr < BlockSparsityPattern > > | prolongation_sparsities |
Implementation of matrix generation for MGTransferBlock.
This is the base class for MGTransfer objects for systems of equations where multigrid is applied only to one ore some blocks, where a GlossBlock comprises all degrees of freedom generated by one base element.
Definition at line 61 of file mg_transfer_block.h.
| MGTransferBlockBase::MGTransferBlockBase | ( | ) |
Constructor without constraint matrices. Use this constructor only with discontinuous finite elements or with no local refinement.
| MGTransferBlockBase::MGTransferBlockBase | ( | const ConstraintMatrix & | constraints, |
| const MGConstrainedDoFs & | mg_constrained_dofs | ||
| ) |
Constructor with constraint matrices as well as mg_constrained_dofs.
| std::size_t MGTransferBlockBase::memory_consumption | ( | ) | const |
Memory used by this object.
Reimplemented in MGTransferBlockSelect< number >.
| void MGTransferBlockBase::build_matrices | ( | const DoFHandler< dim, spacedim > & | dof, |
| const MGDoFHandler< dim, spacedim > & | mg_dof | ||
| ) | [protected] |
Actually build the prolongation matrices for each level.
This function is only called by derived classes. These can also set the member variables selected and others to restrict the transfer matrices to certain blocks.
| ::ExceptionBase& MGTransferBlockBase::ExcMatricesNotBuilt | ( | ) | [static, protected] |
Call build_matrices() function first.
std::vector<bool> MGTransferBlockBase::selected [protected] |
Flag of selected blocks.
The transfer operators only act on the blocks having a true entry here.
Definition at line 105 of file mg_transfer_block.h.
unsigned int MGTransferBlockBase::n_mg_blocks [protected] |
Number of blocks of multigrid vector.
Definition at line 111 of file mg_transfer_block.h.
std::vector<unsigned int> MGTransferBlockBase::mg_block [protected] |
For each block of the whole block vector, list to what block of the multigrid vector it is mapped. Since depending on selected, there may be fewer mutlilevel blocks than original blocks, some of the entries may be illegal unsigned integers.
Definition at line 124 of file mg_transfer_block.h.
std::vector<std::vector<unsigned int> > MGTransferBlockBase::sizes [mutable, protected] |
Sizes of the multi-level vectors.
Definition at line 129 of file mg_transfer_block.h.
std::vector<unsigned int> MGTransferBlockBase::block_start [protected] |
Start index of each block.
Definition at line 134 of file mg_transfer_block.h.
std::vector<std::vector<unsigned int> > MGTransferBlockBase::mg_block_start [protected] |
Start index of each block on all levels.
Definition at line 140 of file mg_transfer_block.h.
std::vector<std_cxx1x::shared_ptr<BlockSparsityPattern> > MGTransferBlockBase::prolongation_sparsities [private] |
Definition at line 149 of file mg_transfer_block.h.
std::vector<std_cxx1x::shared_ptr<BlockSparseMatrix<double> > > MGTransferBlockBase::prolongation_matrices [protected] |
The actual prolongation matrix. column indices belong to the dof indices of the mother cell, i.e. the coarse level. while row indices belong to the child cell, i.e. the fine level.
Definition at line 161 of file mg_transfer_block.h.
std::vector<std::vector<std::vector<std::pair<unsigned int, unsigned int> > > > MGTransferBlockBase::copy_indices [protected] |
Mapping for the copy_to/from_mg-functions. The indices into this vector are (in this order): global block number, level number. The data is first the global index inside the block, then the level index inside the block.
Definition at line 175 of file mg_transfer_block.h.
SmartPointer<const ConstraintMatrix, MGTransferBlockBase> MGTransferBlockBase::constraints [protected] |
The constraints of the global system.
Definition at line 180 of file mg_transfer_block.h.
SmartPointer<const MGConstrainedDoFs, MGTransferBlockBase> MGTransferBlockBase::mg_constrained_dofs [protected] |
The mg_constrained_dofs of the level systems.
Definition at line 186 of file mg_transfer_block.h.
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