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Reference documentation for deal.II version 8.4.2
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Reference documentation for deal.II version 8.4.2
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#include <deal.II/multigrid/mg_transfer.h>
Public Member Functions | |
| MGTransferPrebuilt () | |
| MGTransferPrebuilt (const ConstraintMatrix &constraints, const MGConstrainedDoFs &mg_constrained_dofs) | |
| virtual | ~MGTransferPrebuilt () |
| void | initialize_constraints (const ConstraintMatrix &constraints, const MGConstrainedDoFs &mg_constrained_dofs) |
| void | clear () |
| template<int dim, int spacedim> | |
| void | build_matrices (const DoFHandler< dim, spacedim > &mg_dof) |
| virtual void | prolongate (const unsigned int to_level, VectorType &dst, const VectorType &src) const |
| virtual void | restrict_and_add (const unsigned int from_level, VectorType &dst, const VectorType &src) const |
| DeclException0 (ExcNoProlongation) | |
| DeclException0 (ExcMatricesNotBuilt) | |
| std::size_t | memory_consumption () const |
| void | print_matrices (std::ostream &os) const |
 Public Member Functions inherited from MGLevelGlobalTransfer< VectorType > | |
| void | clear () |
| template<int dim, class InVector , int spacedim> | |
| void | copy_to_mg (const DoFHandler< dim, spacedim > &mg_dof, MGLevelObject< VectorType > &dst, const InVector &src) const |
| template<int dim, class OutVector , int spacedim> | |
| void | copy_from_mg (const DoFHandler< dim, spacedim > &mg_dof, OutVector &dst, const MGLevelObject< VectorType > &src) const |
| template<int dim, class OutVector , int spacedim> | |
| void | copy_from_mg_add (const DoFHandler< dim, spacedim > &mg_dof, OutVector &dst, const MGLevelObject< VectorType > &src) const |
| void | set_component_to_block_map (const std::vector< unsigned int > &map) |
| std::size_t | memory_consumption () const |
| void | print_indices (std::ostream &os) const |
| Public Member Functions inherited from MGTransferBase< VectorType > | |
| virtual | ~MGTransferBase () |
| Public Member Functions inherited from Subscriptor | |
| Subscriptor () | |
| Subscriptor (const Subscriptor &) | |
| virtual | ~Subscriptor () |
| Subscriptor & | operator= (const Subscriptor &) |
| void | subscribe (const char *identifier=0) const |
| void | unsubscribe (const char *identifier=0) const |
| unsigned int | n_subscriptions () const |
| void | list_subscribers () const |
| DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects."<< "\"<< "(Additional information: "<< arg3<< ")\"<< "See the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "a lot more information on what this error means and "<< "how to fix programs in which it happens.") | |
| DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier <"<< arg2<< "> subscribes to this object of class "<< arg1<< ". Consequently, it cannot be unsubscribed.") | |
| template<class Archive > | |
| void | serialize (Archive &ar, const unsigned int version) |
Private Attributes | |
| std::vector< std_cxx11::shared_ptr< typename internal::MatrixSelector< VectorType >::Sparsity > > | prolongation_sparsities |
| std::vector< std_cxx11::shared_ptr< typename internal::MatrixSelector< VectorType >::Matrix > > | prolongation_matrices |
| std::vector< std::vector< bool > > | interface_dofs |
| SmartPointer< const ConstraintMatrix, MGTransferPrebuilt< VectorType > > | constraints |
Additional Inherited Members | |
| Protected Member Functions inherited from MGLevelGlobalTransfer< VectorType > | |
| template<int dim, int spacedim> | |
| void | fill_and_communicate_copy_indices (const DoFHandler< dim, spacedim > &mg_dof) |
| Protected Attributes inherited from MGLevelGlobalTransfer< VectorType > | |
| std::vector< types::global_dof_index > | sizes |
| std::vector< std::vector< std::pair< types::global_dof_index, types::global_dof_index > > > | copy_indices |
| std::vector< std::vector< std::pair< types::global_dof_index, types::global_dof_index > > > | copy_indices_global_mine |
| std::vector< std::vector< std::pair< types::global_dof_index, types::global_dof_index > > > | copy_indices_level_mine |
| bool | perform_plain_copy |
| std::vector< unsigned int > | component_to_block_map |
| SmartPointer< const MGConstrainedDoFs, MGLevelGlobalTransfer< VectorType > > | mg_constrained_dofs |
Implementation of the MGTransferBase interface for which the transfer operations are prebuilt upon construction of the object of this class as matrices. This is the fast way, since it only needs to build the operation once by looping over all cells and storing the result in a matrix for each level, but requires additional memory.
See MGTransferBase to find out which of the transfer classes is best for your needs.
Definition at line 433 of file mg_transfer.h.
| MGTransferPrebuilt< VectorType >::MGTransferPrebuilt | ( | ) |
Constructor without constraint matrices. Use this constructor only with discontinuous finite elements or with no local refinement.
Definition at line 45 of file mg_transfer_prebuilt.cc.
| MGTransferPrebuilt< VectorType >::MGTransferPrebuilt | ( | const ConstraintMatrix & | constraints, |
| const MGConstrainedDoFs & | mg_constrained_dofs | ||
| ) |
Constructor with constraints. Equivalent to the default constructor followed by initialize_constraints().
Definition at line 51 of file mg_transfer_prebuilt.cc.
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virtual |
Destructor.
Definition at line 61 of file mg_transfer_prebuilt.cc.
| void MGTransferPrebuilt< VectorType >::initialize_constraints | ( | const ConstraintMatrix & | constraints, |
| const MGConstrainedDoFs & | mg_constrained_dofs | ||
| ) |
Initialize the constraints to be used in build_matrices().
Definition at line 68 of file mg_transfer_prebuilt.cc.
| void MGTransferPrebuilt< VectorType >::clear | ( | ) |
Reset the object to the state it had right after the default constructor.
Definition at line 77 of file mg_transfer_prebuilt.cc.
| void MGTransferPrebuilt< VectorType >::build_matrices | ( | const DoFHandler< dim, spacedim > & | mg_dof | ) |
Actually build the prolongation matrices for each level.
Definition at line 118 of file mg_transfer_prebuilt.cc.
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virtual |
Prolongate a vector from level to_level-1 to level to_level using the embedding matrices of the underlying finite element. The previous content of dst is overwritten.
Implements MGTransferBase< VectorType >.
Definition at line 89 of file mg_transfer_prebuilt.cc.
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virtual |
Restrict a vector from level from_level to level from_level-1 using the transpose operation of the prolongate method. If the region covered by cells on level from_level is smaller than that of level from_level-1 (local refinement), then some degrees of freedom in dst are active and will not be altered. For the other degrees of freedom, the result of the restriction is added.
Implements MGTransferBase< VectorType >.
Definition at line 102 of file mg_transfer_prebuilt.cc.
| MGTransferPrebuilt< VectorType >::DeclException0 | ( | ExcNoProlongation | ) |
Finite element does not provide prolongation matrices.
| MGTransferPrebuilt< VectorType >::DeclException0 | ( | ExcMatricesNotBuilt | ) |
You have to call build_matrices() before using this object.
| std::size_t MGTransferPrebuilt< VectorType >::memory_consumption | ( | ) | const |
Memory used by this object.
Definition at line 282 of file mg_transfer_prebuilt.cc.
| void MGTransferPrebuilt< VectorType >::print_matrices | ( | std::ostream & | os | ) | const |
Print all the matrices for debugging purposes.
Definition at line 268 of file mg_transfer_prebuilt.cc.
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private |
Sparsity patterns for transfer matrices.
Definition at line 530 of file mg_transfer.h.
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private |
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 537 of file mg_transfer.h.
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private |
Degrees of freedom on the refinement edge excluding those on the boundary.
Definition at line 543 of file mg_transfer.h.
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private |
The constraints of the global system.
Definition at line 548 of file mg_transfer.h.
1.8.12