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MueLu_CoupledAggregationFactory_def.hpp
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5// MueLu: A package for multigrid based preconditioning
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46#ifndef MUELU_COUPLEDAGGREGATIONFACTORY_DEF_HPP
47#define MUELU_COUPLEDAGGREGATIONFACTORY_DEF_HPP
48
50#include "MueLu_Level.hpp"
51#include "MueLu_Graph.hpp"
52#include "MueLu_Aggregates.hpp"
53#include "MueLu_Monitor.hpp"
54#include "MueLu_AmalgamationInfo.hpp"
55
56namespace MueLu {
57
58 template <class LocalOrdinal, class GlobalOrdinal, class Node>
60 {
61 TEUCHOS_TEST_FOR_EXCEPTION(algo2_.GetMinNodesPerAggregate() != algo1_.GetMinNodesPerAggregate(), Exceptions::RuntimeError, "");
62 }
63
64 template <class LocalOrdinal, class GlobalOrdinal, class Node>
66 Input(currentLevel, "Graph");
67 //Input(currentLevel, "UnAmalgamationInfo"); // TODO, only provided by CoalesceDropFactory2
68 }
69
70 template <class LocalOrdinal, class GlobalOrdinal, class Node>
72 {
73 FactoryMonitor m(*this, "Build", currentLevel);
74
75 RCP<Aggregates> aggregates;
76 {
77 //TODO check for reuse of aggregates here
78
79 // Level Get
80 RCP<const GraphBase> graph = Get< RCP<GraphBase> >(currentLevel, "Graph");
81
82 // Build
83 aggregates = rcp(new Aggregates(*graph));
84 aggregates->setObjectLabel("UC");
85
86 algo1_.CoarsenUncoupled(*graph, *aggregates);
87 algo2_.AggregateLeftovers(*graph, *aggregates);
88
89 }
90
91 aggregates->AggregatesCrossProcessors(true);
92 aggregates->ComputeAggregateSizes(true/*forceRecompute*/);
93
94 // Level Set
95 Set(currentLevel, "Aggregates", aggregates);
96
97 if (IsPrint(Statistics0)) {
98 aggregates->describe(GetOStream(Statistics0), getVerbLevel());
99 }
100
101 }
102
103} //namespace MueLu
104
105#endif // MUELU_COUPLEDAGGREGATIONFACTORY_DEF_HPP
Container class for aggregation information.
void Build(Level &currentLevel) const
Build aggregates.
void DeclareInput(Level &currentLevel) const
Input.
Exception throws to report errors in the internal logical of the program.
Timer to be used in factories. Similar to Monitor but with additional timers.
Class that holds all level-specific information.
Namespace for MueLu classes and methods.
@ Statistics0
Print statistics that do not involve significant additional computation.