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Reference documentation for deal.II version 8.1.0
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#include <mg_block_smoother.h>
Public Member Functions | |
MGSmootherBlock (VectorMemory< BlockVector< number > > &mem, const unsigned int steps=1, const bool variable=false, const bool symmetric=false, const bool transpose=false, const bool reverse=false) | |
template<class MGMATRIX , class MGRELAX > | |
void | initialize (const MGMATRIX &matrices, const MGRELAX &smoothers) |
void | clear () |
void | set_steps (const unsigned int) |
void | set_variable (const bool) |
void | set_symmetric (const bool) |
void | set_transpose (const bool) |
void | set_reverse (const bool) |
virtual void | smooth (const unsigned int level, BlockVector< number > &u, const BlockVector< number > &rhs) const |
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virtual | ~MGSmootherBase () |
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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 | |
MGLevelObject< PointerMatrix < MATRIX, BlockVector< number > > > | matrices |
MGLevelObject< PointerMatrix < RELAX, BlockVector< number > > > | smoothers |
unsigned int | steps |
bool | variable |
bool | symmetric |
bool | transpose |
bool | reverse |
VectorMemory< BlockVector < number > > & | mem |
General smoother class for block vectors. This class gives complete freedom to the choice of a block smoother by being initialized with a matrix and a smoother object. Therefore, the smoother object for each level must be constructed by hand.
Definition at line 48 of file mg_block_smoother.h.
MGSmootherBlock< MATRIX, RELAX, number >::MGSmootherBlock | ( | VectorMemory< BlockVector< number > > & | mem, |
const unsigned int | steps = 1 , |
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const bool | variable = false , |
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const bool | symmetric = false , |
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const bool | transpose = false , |
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const bool | reverse = false |
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Constructor. Sets memory and smoothing parameters.
void MGSmootherBlock< MATRIX, RELAX, number >::initialize | ( | const MGMATRIX & | matrices, |
const MGRELAX & | smoothers | ||
) |
Initialize for matrices. The parameter matrices
can be any object having functions get_minlevel()
and get_maxlevel()
as well as an operator[]
returning a reference to MATRIX
.
The same convention is used for the parameter smoothers
, such that operator[]
returns the object doing the block-smoothing on a single level.
This function stores pointers to the level matrices and smoothing operator for each level.
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virtual |
Empty all vectors.
Implements MGSmootherBase< BlockVector< number > >.
void MGSmootherBlock< MATRIX, RELAX, number >::set_steps | ( | const unsigned | int | ) |
Modify the number of smoothing steps on finest level.
void MGSmootherBlock< MATRIX, RELAX, number >::set_variable | ( | const bool | ) |
Switch on/off variable smoothing.
void MGSmootherBlock< MATRIX, RELAX, number >::set_symmetric | ( | const bool | ) |
Switch on/off symmetric smoothing.
void MGSmootherBlock< MATRIX, RELAX, number >::set_transpose | ( | const bool | ) |
Switch on/off transposed. This is mutually exclusive with reverse().
void MGSmootherBlock< MATRIX, RELAX, number >::set_reverse | ( | const bool | ) |
Switch on/off reversed. This is mutually exclusive with transpose().
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virtual |
Implementation of the interface for Multigrid
. This function does nothing, which by comparison with the definition of this function means that the the smoothing operator equals the null operator.
Implements MGSmootherBase< BlockVector< number > >.
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private |
Pointer to the matrices.
Definition at line 143 of file mg_block_smoother.h.
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private |
Pointer to the matrices.
Definition at line 148 of file mg_block_smoother.h.
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private |
Number of smoothing steps.
Definition at line 153 of file mg_block_smoother.h.
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private |
Variable smoothing?
Definition at line 158 of file mg_block_smoother.h.
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private |
Symmetric smoothing?
Definition at line 163 of file mg_block_smoother.h.
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private |
Reverse?
Definition at line 173 of file mg_block_smoother.h.
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private |
Memory for auxiliary vectors.
Definition at line 178 of file mg_block_smoother.h.