Dune Core Modules (2.8.0)
parameters.hh
Go to the documentation of this file.
247 };
Parameters needed for the aggregation process.
Definition: parameters.hh:82
Parameters for the complete coarsening process.
Definition: parameters.hh:256
Parameters needed to check whether a node depends on another.
Definition: parameters.hh:29
void setDefaultValuesAnisotropic(std::size_t dim, std::size_t diameter=2)
Sets reasonable default values for an anisotropic problem.
Definition: parameters.hh:130
void setAdditive(bool additive)
Set whether to use additive multigrid.
Definition: parameters.hh:467
void setSkipIsolated(bool skip)
Set whether isolated aggregates will not be represented on the coarse level.
Definition: parameters.hh:169
void setProlongationDampingFactor(double d)
Set the damping factor for the prolongation.
Definition: parameters.hh:330
double alpha() const
Get the scaling value for marking connections as strong. Default value is 1/3.
Definition: parameters.hh:68
void setMaxAggregateSize(std::size_t size)
Set the maximum number of nodes a aggregate is allowed to have.
Definition: parameters.hh:200
void setMinCoarsenRate(double rate)
Set the minimum coarsening rate to be achieved in each coarsening.
Definition: parameters.hh:294
double minCoarsenRate() const
Get the minimum coarsening rate to be achieved.
Definition: parameters.hh:302
std::size_t maxAggregateSize() const
Get the maximum number of nodes a aggregate is allowed to have.
Definition: parameters.hh:192
void setAlpha(double a)
Set the scaling value for marking connections as strong. Default value is 1/3.
Definition: parameters.hh:59
double beta() const
Get the threshold for marking nodes as isolated. The default value is 1.0E-5.
Definition: parameters.hh:50
std::size_t maxConnectivity() const
Get the maximum number of connections a aggregate is allowed to have.
Definition: parameters.hh:209
int coarsenTarget() const
Get the maximum number of unknowns allowed on the coarsest level.
Definition: parameters.hh:284
void setAccumulate(AccumulationMode accu)
Set whether he data should be accumulated on fewer processes on coarser levels.
Definition: parameters.hh:317
double getProlongationDampingFactor() const
Get the damping factor for the prolongation.
Definition: parameters.hh:340
AccumulationMode accumulate() const
Whether the data should be accumulated on fewer processes on coarser levels.
Definition: parameters.hh:310
void setMaxConnectivity(std::size_t connectivity)
Set the maximum number of connections a aggregate is allowed to have.
Definition: parameters.hh:218
std::size_t minAggregateSize() const
Get the minimum number of nodes a aggregate has to consist of.
Definition: parameters.hh:178
bool getAdditive() const
Get whether to use additive multigrid.
Definition: parameters.hh:476
void setMaxLevel(int l)
Set the maximum number of levels allowed in the hierarchy.
Definition: parameters.hh:261
void setDebugLevel(int level)
Set the debugging level.
Definition: parameters.hh:399
std::size_t getGamma() const
Get the value of gamma; 1 for V-cycle, 2 for W-cycle.
Definition: parameters.hh:458
void setNoPostSmoothSteps(std::size_t steps)
Set the number of postsmoothing steps to apply.
Definition: parameters.hh:435
std::size_t getNoPreSmoothSteps() const
Get the number of presmoothing steps to apply.
Definition: parameters.hh:426
DependencyParameters()
Constructor.
Definition: parameters.hh:32
void setMinAggregateSize(std::size_t size)
Set the minimum number of nodes a aggregate has to consist of.
Definition: parameters.hh:186
int maxLevel() const
Get the maximum number of levels allowed in the hierarchy.
Definition: parameters.hh:268
void setDefaultValuesIsotropic(std::size_t dim, std::size_t diameter=2)
Sets reasonable default values for an isotropic problem.
Definition: parameters.hh:107
AggregationParameters()
Constructor.
Definition: parameters.hh:93
bool skipIsolated() const
Whether isolated aggregates will not be represented on the coarse level.
Definition: parameters.hh:159
Parameters(int maxLevel=100, int coarsenTarget=1000, double minCoarsenRate=1.2, double prolongDamp=1.6, AccumulationMode accumulate=successiveAccu)
Constructor.
Definition: parameters.hh:491
void setCoarsenTarget(int nodes)
Set the maximum number of unknowns allowed on the coarsest level.
Definition: parameters.hh:276
void setNoPreSmoothSteps(std::size_t steps)
Set the number of presmoothing steps to apply.
Definition: parameters.hh:418
AccumulationMode
Identifiers for the different accumulation modes.
Definition: parameters.hh:230
void setBeta(double b)
Set threshold for marking nodes as isolated. The default value is 1.0E-5.
Definition: parameters.hh:40
std::size_t maxDistance() const
Get the maximal distance allowed between two nodes in a aggregate.
Definition: parameters.hh:142
CoarseningParameters(int maxLevel=100, int coarsenTarget=1000, double minCoarsenRate=1.2, double prolongDamp=1.6, AccumulationMode accumulate=successiveAccu)
Constructor.
Definition: parameters.hh:354
void setGamma(std::size_t gamma)
Set the value of gamma; 1 for V-cycle, 2 for W-cycle.
Definition: parameters.hh:451
void setMaxDistance(std::size_t distance)
Set the maximal distance allowed between two nodes in a aggregate.
Definition: parameters.hh:152
int debugLevel() const
Get the debugging Level.
Definition: parameters.hh:409
std::size_t getNoPostSmoothSteps() const
Get the number of postsmoothing steps to apply.
Definition: parameters.hh:443
@ atOnceAccu
Accumulate data to one process at once.
Definition: parameters.hh:242
@ successiveAccu
Successively accumulate to fewer processes.
Definition: parameters.hh:246
|
Legal Statements / Impressum |
Hosted by TU Dresden |
generated with Hugo v0.111.3
(Dec 22, 23:30, 2024)