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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 
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 
62 namespace 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);
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,Xpetra::StaticProfile));
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.
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
ParameterList & set(std::string const &name, T const &value, std::string const &docString="", RCP< const ParameterEntryValidator > const &validator=null)
Timer to be used in factories. Similar to Monitor but with additional timers.
#define TEUCHOS_TEST_FOR_EXCEPTION(throw_exception_test, Exception, msg)
void DeclareInput(Level &level) const
Specifies the data that this class needs, and the factories that generate that data.
TEUCHOS_DEPRECATED RCP< T > rcp(T *p, Dealloc_T dealloc, bool owns_mem)
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
void Build(Level &level) const
Build an object with this factory.