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MueLu_RepartitionBlockDiagonalFactory_def.hpp
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46#ifndef MUELU_REPARTITIONBLOCKDIAGONALFACTORY_DEF_HPP_
47#define MUELU_REPARTITIONBLOCKDIAGONALFACTORY_DEF_HPP_
48
50
51#include <Teuchos_Utils.hpp>
52
53#include <Xpetra_BlockedCrsMatrix.hpp>
54
55#include "MueLu_Exceptions.hpp"
57#include "MueLu_Level.hpp"
58#include "MueLu_MasterList.hpp"
59#include "MueLu_Monitor.hpp"
60#include "MueLu_Utilities.hpp"
61
62namespace MueLu {
63
64 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
66 RCP<ParameterList> validParamList = rcp(new ParameterList());
67 validParamList->set< RCP<const FactoryBase> > ("A", Teuchos::null, "Factory of the matrix A");
68
69 return validParamList;
70 }
71
72
73 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
75 Input(currentLevel, "A");
76 } //DeclareInput()
77
78 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
80 FactoryMonitor m(*this, "Build", currentLevel);
81 typedef Xpetra::BlockedCrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> BlockCrs;
82
83 RCP<Matrix> originalA = Get< RCP<Matrix> >(currentLevel, "A");
84 RCP<BlockCrs> A = Teuchos::rcp_dynamic_cast<BlockCrs>(originalA);
85
86 // RCP<BlockCrs> A = Get< RCP<BlockCrs> >(currentLevel, "A");
87 TEUCHOS_TEST_FOR_EXCEPTION(A==Teuchos::null, Exceptions::BadCast, "MueLu::RepartitionBlockDiagonalFactory::Build: input matrix A is not of type BlockedCrsMatrix! error.");
88
89 // Build the block diagonal
90 RCP<BlockCrs> DiagonalMatrix = Teuchos::rcp(new BlockCrs(A->getBlockedRangeMap(),A->getBlockedDomainMap(),0));
91 for(size_t i=0; i< A->Rows(); i++)
92 DiagonalMatrix->setMatrix(i,i,A->getMatrix(i,i));
93
94 Set(currentLevel,"A",Teuchos::rcp_dynamic_cast<Matrix>(DiagonalMatrix));
95
96
97 } //Build()
98
99} // end namespace MueLu
100
101#endif /* MUELU_REPARTITIONBLOCKDIAGONALFACTORY_DEF_HPP_ */
Exception indicating invalid cast attempted.
Timer to be used in factories. Similar to Monitor but with additional timers.
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
void Build(Level &level) const
Build an object with this factory.
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
void DeclareInput(Level &level) const
Specifies the data that this class needs, and the factories that generate that data.
Namespace for MueLu classes and methods.