dune-istl 2.9.1
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The criterion describing the stop criteria for the coarsening process. More...
#include <dune/istl/paamg/matrixhierarchy.hh>
Public Types | |
typedef T | AggregationCriterion |
The criterion for tagging connections as strong and nodes as isolated. This might be e.g. SymmetricCriterion or UnSymmetricCriterion. | |
Public Member Functions | |
CoarsenCriterion (int maxLevel=100, int coarsenTarget=1000, double minCoarsenRate=1.2, double prolongDamp=1.6, AccumulationMode accumulate=successiveAccu) | |
Constructor. | |
CoarsenCriterion (const Dune::Amg::Parameters &parms) | |
The criterion describing the stop criteria for the coarsening process.
typedef T Dune::Amg::CoarsenCriterion< T >::AggregationCriterion |
The criterion for tagging connections as strong and nodes as isolated. This might be e.g. SymmetricCriterion or UnSymmetricCriterion.
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Constructor.
maxLevel | The maximum number of levels allowed in the matrix hierarchy (default: 100). |
coarsenTarget | If the number of nodes in the matrix is below this threshold the coarsening will stop (default: 1000). |
minCoarsenRate | If the coarsening rate falls below this threshold the coarsening will stop (default: 1.2) |
prolongDamp | The damping factor to apply to the prolongated update (default: 1.6) |
accumulate | Whether to accumulate the data onto fewer processors on coarser levels. |
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