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Reference documentation for deal.II version 8.1.0
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#include <mg_transfer_block.h>
Public Member Functions | |
MGTransferBlock () | |
virtual | ~MGTransferBlock () |
void | initialize (const std::vector< number > &factors, VectorMemory< Vector< number > > &memory) |
template<int dim, int spacedim> | |
void | build_matrices (const DoFHandler< dim, spacedim > &dof, const DoFHandler< dim, spacedim > &mg_dof, const std::vector< bool > &selected) |
virtual void | prolongate (const unsigned int to_level, BlockVector< number > &dst, const BlockVector< number > &src) const |
virtual void | restrict_and_add (const unsigned int from_level, BlockVector< number > &dst, const BlockVector< number > &src) const |
template<int dim, typename number2 , int spacedim> | |
void | copy_to_mg (const DoFHandler< dim, spacedim > &mg_dof, MGLevelObject< BlockVector< number > > &dst, const BlockVector< number2 > &src) const |
template<int dim, typename number2 , int spacedim> | |
void | copy_from_mg (const DoFHandler< dim, spacedim > &mg_dof, BlockVector< number2 > &dst, const MGLevelObject< BlockVector< number > > &src) const |
template<int dim, typename number2 , int spacedim> | |
void | copy_from_mg_add (const DoFHandler< dim, spacedim > &mg_dof, BlockVector< number2 > &dst, const MGLevelObject< BlockVector< number > > &src) const |
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virtual | ~MGTransferBase () |
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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.\n"<< "(Additional information: "<< arg3<< ")\n"<< "Note the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "more information on what this error means.") | |
DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier \""<< arg2<< "\" did subscribe to this object of class "<< arg1) | |
template<class Archive > | |
void | serialize (Archive &ar, const unsigned int version) |
Private Attributes | |
std::vector< number > | factors |
SmartPointer< VectorMemory < Vector< number > >, MGTransferBlock< number > > | memory |
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std::vector< bool > | selected |
unsigned int | n_mg_blocks |
std::vector< unsigned int > | mg_block |
std::vector< std::vector < types::global_dof_index > > | sizes |
std::vector < types::global_dof_index > | block_start |
std::vector< std::vector < types::global_dof_index > > | 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 |
Additional Inherited Members | |
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MGTransferBlockBase () | |
MGTransferBlockBase (const ConstraintMatrix &constraints, const MGConstrainedDoFs &mg_constrained_dofs) | |
std::size_t | memory_consumption () const |
template<int dim, int spacedim> | |
void | build_matrices (const DoFHandler< dim, spacedim > &dof, const DoFHandler< dim, spacedim > &mg_dof) |
DeclException0 (ExcMatricesNotBuilt) | |
Implementation of the MGTransferBase interface for block matrices and block vectors.
In addition to the functionality of MGTransferPrebuilt, the operation may be restricted to certain blocks of the vector.
If the restricted mode is chosen, block vectors used in the transfer routines may only have as many blocks as there are trues
in the selected-field.
See MGTransferBase to find out which of the transfer classes is best for your needs.
Definition at line 212 of file mg_transfer_block.h.
MGTransferBlock< number >::MGTransferBlock | ( | ) |
Default constructor.
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virtual |
Destructor.
void MGTransferBlock< number >::initialize | ( | const std::vector< number > & | factors, |
VectorMemory< Vector< number > > & | memory | ||
) |
void MGTransferBlock< number >::build_matrices | ( | const DoFHandler< dim, spacedim > & | dof, |
const DoFHandler< dim, spacedim > & | mg_dof, | ||
const std::vector< bool > & | selected | ||
) |
Build the prolongation matrices for each level.
This function is a front-end for the same function in MGTransferBlockBase.
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virtual |
Prolongate a vector from level to_level-1
to level to_level
. The previous content of dst
is overwritten.
Implements MGTransferBase< BlockVector< number > >.
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virtual |
Restrict a vector from level from_level
to level from_level-1
and add this restriction to dst
. 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 degress of freedom, the result of the restriction is added.
Implements MGTransferBase< BlockVector< number > >.
void MGTransferBlock< number >::copy_to_mg | ( | const DoFHandler< dim, spacedim > & | mg_dof, |
MGLevelObject< BlockVector< number > > & | dst, | ||
const BlockVector< number2 > & | src | ||
) | const |
Transfer from a vector on the global grid to a multilevel vector.
The action for discontinuous elements is as follows: on an active mesh cell, the global vector entries are simply copied to the corresponding entries of the level vector. Then, these values are restricted down to the coarsest level.
void MGTransferBlock< number >::copy_from_mg | ( | const DoFHandler< dim, spacedim > & | mg_dof, |
BlockVector< number2 > & | dst, | ||
const MGLevelObject< BlockVector< number > > & | src | ||
) | const |
Transfer from multi-level vector to normal vector.
Copies data from active portions of a multilevel vector into the respective positions of a global vector.
Definition at line 119 of file mg_transfer_block.templates.h.
void MGTransferBlock< number >::copy_from_mg_add | ( | const DoFHandler< dim, spacedim > & | mg_dof, |
BlockVector< number2 > & | dst, | ||
const MGLevelObject< BlockVector< number > > & | src | ||
) | const |
Add a multi-level vector to a normal vector.
Works as the previous function, but probably not for continuous elements.
Definition at line 137 of file mg_transfer_block.templates.h.
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private |
Optional multiplication factors for each block. Requires initialization of memory.
Definition at line 315 of file mg_transfer_block.h.
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private |
Memory pool required if additional multiplication using factors is desired.
Definition at line 322 of file mg_transfer_block.h.