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MueLu_MergedBlockedMatrixFactory_def.hpp
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46 #ifndef MUELU_MERGEDBLOCKEDMATRIXFACTORY_DEF_HPP_
47 #define MUELU_MERGEDBLOCKEDMATRIXFACTORY_DEF_HPP_
48 
50 #include "MueLu_Level.hpp"
51 #include "MueLu_Monitor.hpp"
52 #include "MueLu_PerfUtils.hpp"
53 
54 #include "MueLu_MergedBlockedMatrixFactory.hpp"
55 
56 namespace MueLu {
57 
58 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
60 { }
61 
62 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
64  RCP<ParameterList> validParamList = rcp(new ParameterList());
65 
66  validParamList->set< RCP<const FactoryBase> >("A", MueLu::NoFactory::getRCP()/*Teuchos::null*/, "Generating factory of the matrix A used for building SchurComplement (must be a 2x2 blocked operator, default = MueLu::NoFactory::getRCP())");
67 
68  return validParamList;
69 }
70 
71 
72 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
74  Input(currentLevel, "A");
75 }
76 
77 template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
79 {
80  FactoryMonitor m(*this, "MergedBlockedMatrix", currentLevel);
81  Teuchos::RCP<Matrix> A = Get<RCP<Matrix> >(currentLevel, "A");
82 
83  RCP<BlockedCrsMatrix> bA = Teuchos::rcp_dynamic_cast<BlockedCrsMatrix>(A);
84  TEUCHOS_TEST_FOR_EXCEPTION(bA == Teuchos::null, Exceptions::BadCast, "MueLu::MergedBlockedMatrixFactory::Build: input matrix A is not of type BlockedCrsMatrix! A generated by AFact_ must be a 2x2 block operator. error.");
85 
86  Teuchos::RCP<Matrix> mergedA = bA->Merge();
87  {
88  GetOStream(Statistics1) << PerfUtils::PrintMatrixInfo(*mergedA, "A (merged)");
89 
90  // note: variable "A" generated by this MergedBlockedMatrix factory is in fact the a merged version
91  // of the blocked matrix A (from the input)
92  Set(currentLevel, "A", mergedA);
93  }
94 }
95 
96 } // namespace MueLu
97 
98 #endif /* MUELU_MERGEDBLOCKEDMATRIXFACTORY_DEF_HPP_ */
Exception indicating invalid cast attempted.
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)
Print more statistics.
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
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
static std::string PrintMatrixInfo(const Matrix &A, const std::string &msgTag, RCP< const Teuchos::ParameterList > params=Teuchos::null)
void DeclareInput(Level &currentLevel) const
Specifies the data that this class needs, and the factories that generate that data.
void Build(Level &currentLevel) const
Build an object with this factory.
static const RCP< const NoFactory > getRCP()
Static Get() functions.