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MueLu_CoupledAggregationFactory_decl.hpp
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46 #ifndef MUELU_COUPLEDAGGREGATIONFACTORY_DECL_HPP
47 #define MUELU_COUPLEDAGGREGATIONFACTORY_DECL_HPP
48 
49 #include "MueLu_ConfigDefs.hpp"
52 
53 #include "MueLu_LocalAggregationAlgorithm.hpp"
54 #include "MueLu_LeftoverAggregationAlgorithm.hpp"
55 #include "MueLu_Level_fwd.hpp"
57 #include "MueLu_Exceptions.hpp"
58 
59 namespace MueLu {
60 
69  /* Factory input:
70  - a graph ("Graph") generated by GraphFact_
71 
72  Factory output:
73  - aggregates ("Aggegates")
74 
75  Factory options:
76  -
77  -
78  -
79  */
80 
81  template<class LocalOrdinal = DefaultLocalOrdinal,
83  class Node = DefaultNode>
85 #undef MUELU_COUPLEDAGGREGATIONFACTORY_SHORT
87 
88  public:
90 
91 
94 
97 
99 
101 
102 
103  // Options algo1
104  void SetOrdering(const std::string& ordering) { algo1_.SetOrdering(ordering); }
105  void SetMaxNeighAlreadySelected(int maxNeighAlreadySelected) { algo1_.SetMaxNeighAlreadySelected(maxNeighAlreadySelected); }
106  const std::string& GetOrdering() const { return algo1_.GetOrdering(); }
108 
109  // Options algo2
110  void SetPhase3AggCreation(double phase3AggCreation) { algo2_.SetPhase3AggCreation(phase3AggCreation); }
111  double GetPhase3AggCreation() const { return algo2_.GetPhase3AggCreation(); }
112 
113  // Options shared algo1 and algo2
114  void SetMinNodesPerAggregate(int minNodesPerAggregate) { algo1_.SetMinNodesPerAggregate(minNodesPerAggregate); algo2_.SetMinNodesPerAggregate(minNodesPerAggregate); }
115  int GetMinNodesPerAggregate() const { return algo1_.GetMinNodesPerAggregate(); //TEUCHOS_TEST_FOR_EXCEPTION(algo2_.GetMinNodesPerAggregate() != algo1_.GetMinNodesPerAggregate(), Exceptions::RuntimeError, "");
116  }
117 
119 
121 
122 
123  void DeclareInput(Level &currentLevel) const;
124 
126 
128 
129 
131  void Build(Level &currentLevel) const;
132 
134 
135  private:
136 
140 
141  }; // class CoupledAggregationFactory
142 
143 } //namespace MueLu
144 
145 //TODO: can be more generic:
146 // - allow to choose algo
147 // - base class for algorithm and options forward to algorithm as parameter list
148 
149 #define MUELU_COUPLEDAGGREGATIONFACTORY_SHORT
150 #endif // MUELU_COUPLEDAGGREGATIONFACTORY_DECL_HPP
MueLu::DefaultLocalOrdinal LocalOrdinal
void SetMaxNeighAlreadySelected(int maxNeighAlreadySelected)
KokkosClassic::DefaultNode::DefaultNodeType DefaultNode
Algorithm for coarsening a graph with uncoupled aggregation.
MueLu::DefaultNode Node
LocalAggregationAlgorithm algo1_
Algorithms.
Factory for coarsening a graph with uncoupled aggregation.
MueLu::DefaultGlobalOrdinal GlobalOrdinal
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
void Build(Level &currentLevel) const
Build aggregates.
Base class for factories that use one level (currentLevel).
void DeclareInput(Level &currentLevel) const
Input.
void SetMaxNeighAlreadySelected(int maxNeighAlreadySelected)