Exemplo n.º 1
0
void Jacobi(
  Scalar omega,
  const Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> & Dinv,
  const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& A,
  const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& B,
  Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& C,
  bool call_FillComplete_on_result = true,
  bool doOptimizeStorage = true) {

  if(C.getRowMap()->isSameAs(*A.getRowMap()) == false) {
    std::string msg = "XpetraExt::MatrixMatrix::Jacobi: row map of C is not same as row map of A";
    throw(Xpetra::Exceptions::RuntimeError(msg));
  }
  else if(C.getRowMap()->isSameAs(*B.getRowMap()) == false) {
    std::string msg = "XpetraExt::MatrixMatrix::Jacobi: row map of C is not same as row map of B";
    throw(Xpetra::Exceptions::RuntimeError(msg));
  }
  
  if (!A.isFillComplete())
    throw(Xpetra::Exceptions::RuntimeError("A is not fill-completed"));
  if (!B.isFillComplete())
    throw(Xpetra::Exceptions::RuntimeError("B is not fill-completed"));

  bool haveMultiplyDoFillComplete = call_FillComplete_on_result && doOptimizeStorage;

  if (C.getRowMap()->lib() == Xpetra::UseEpetra) {
#ifndef HAVE_XPETRA_EPETRAEXT
    throw(Xpetra::Exceptions::RuntimeError("Xpetra::MatrixMatrix::Jacobi requires EpetraExt to be compiled."));
#else
    throw(Xpetra::Exceptions::RuntimeError("Xpetra::MatrixMatrix::Jacobi requires you to use an Epetra-compatible data type."));
#endif
    } else if (C.getRowMap()->lib() == Xpetra::UseTpetra) {
#ifdef HAVE_XPETRA_TPETRA
    const Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> & tpA = Xpetra::MatrixMatrix::Op2TpetraCrs(A);
    const Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> & tpB = Xpetra::MatrixMatrix::Op2TpetraCrs(B);
    Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>       & tpC = Xpetra::MatrixMatrix::Op2NonConstTpetraCrs(C);
    const RCP<Tpetra::Vector<Scalar, LocalOrdinal, GlobalOrdinal, Node>  >          & tpD = toTpetra(Dinv);
    
    Tpetra::MatrixMatrix::Jacobi(omega,*tpD,tpA,tpB,tpC,haveMultiplyDoFillComplete);
#else
      throw(Xpetra::Exceptions::RuntimeError("Xpetra must be compiled with Tpetra."));
#endif
    }
  
  if(call_FillComplete_on_result && !haveMultiplyDoFillComplete) {
      RCP<Teuchos::ParameterList> params = rcp(new Teuchos::ParameterList());
      params->set("Optimize Storage",doOptimizeStorage);
      C.fillComplete(B.getDomainMap(),B.getRangeMap(),params);
    }

    // transfer striding information
    RCP<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> > rcpA = Teuchos::rcp_const_cast<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> >(Teuchos::rcpFromRef(A));
    RCP<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> > rcpB = Teuchos::rcp_const_cast<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> >(Teuchos::rcpFromRef(B));
    C.CreateView("stridedMaps", rcpA, false, rcpB, false); // TODO use references instead of RCPs
} // end Jacobi
  void Jacobi<double,int,int,EpetraNode>(double omega,
                                         const Xpetra::Vector<double,int,int,EpetraNode> & Dinv,
                                         const Xpetra::Matrix<double,int,int,EpetraNode> & A,
                                         const Xpetra::Matrix<double,int,int,EpetraNode> & B,
                                         Xpetra::Matrix<double,int,int,EpetraNode> &C,
                                         bool call_FillComplete_on_result,
                                         bool doOptimizeStorage,
                                         const std::string & label,
                                         const Teuchos::RCP<Teuchos::ParameterList>& params) {
    typedef double        SC;
    typedef int           LO;
    typedef int           GO;
    typedef EpetraNode    NO;

    TEUCHOS_TEST_FOR_EXCEPTION(C.getRowMap()->isSameAs(*A.getRowMap()) == false, Exceptions::RuntimeError,
                               "XpetraExt::MatrixMatrix::Jacobi: row map of C is not same as row map of A")
    TEUCHOS_TEST_FOR_EXCEPTION(C.getRowMap()->isSameAs(*B.getRowMap()) == false, Exceptions::RuntimeError,
                               "XpetraExt::MatrixMatrix::Jacobi: row map of C is not same as row map of B");
    TEUCHOS_TEST_FOR_EXCEPTION(!A.isFillComplete(), Exceptions::RuntimeError, "A is not fill-completed");
    TEUCHOS_TEST_FOR_EXCEPTION(!B.isFillComplete(), Exceptions::RuntimeError, "B is not fill-completed");

    bool haveMultiplyDoFillComplete = call_FillComplete_on_result && doOptimizeStorage;

    if (C.getRowMap()->lib() == Xpetra::UseEpetra) {
#ifndef HAVE_XPETRA_EPETRAEXT
      throw(Xpetra::Exceptions::RuntimeError("Xpetra::IteratorOps::Jacobi requires EpetraExt to be compiled."));
#else
      Epetra_CrsMatrix& epA = Xpetra::Helpers<SC,LO,GO,NO>::Op2NonConstEpetraCrs(A);
      Epetra_CrsMatrix& epB = Xpetra::Helpers<SC,LO,GO,NO>::Op2NonConstEpetraCrs(B);
      Epetra_CrsMatrix& epC = Xpetra::Helpers<SC,LO,GO,NO>::Op2NonConstEpetraCrs(C);
      // FIXME
      XPETRA_DYNAMIC_CAST(const EpetraVectorT<GO XPETRA_COMMA NO>, Dinv, epD, "Xpetra::IteratorOps::Jacobi() only accepts Xpetra::EpetraVector as input argument.");

      int i = EpetraExt::MatrixMatrix::Jacobi(omega, *epD.getEpetra_Vector(), epA, epB, epC, haveMultiplyDoFillComplete);
      if (haveMultiplyDoFillComplete) {
        // Due to Epetra wrapper intricacies, we need to explicitly call
        // fillComplete on Xpetra matrix here. Specifically, EpetraCrsMatrix
        // only keeps an internal variable to check whether we are in resumed
        // state or not, but never touches the underlying Epetra object. As
        // such, we need to explicitly update the state of Xpetra matrix to
        // that of Epetra one afterwords
        C.fillComplete();
      }

      if (i != 0) {
        std::ostringstream buf;
        buf << i;
        std::string msg = "EpetraExt::MatrixMatrix::Jacobi return value of " + buf.str();
        throw(Exceptions::RuntimeError(msg));
      }
#endif
    } else if (C.getRowMap()->lib() == Xpetra::UseTpetra) {
Exemplo n.º 3
0
void Multiply(
  const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& A,
  bool transposeA,
  const Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& B,
  bool transposeB,
  Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>& C,
  bool call_FillComplete_on_result = true,
  bool doOptimizeStorage = true) {

    if(transposeA == false && C.getRowMap()->isSameAs(*A.getRowMap()) == false) {
      std::string msg = "XpetraExt::MatrixMatrix::Multiply: row map of C is not same as row map of A";
      throw(Xpetra::Exceptions::RuntimeError(msg));
    }
    else if(transposeA == true && C.getRowMap()->isSameAs(*A.getDomainMap()) == false) {
      std::string msg = "XpetraExt::MatrixMatrix::Multiply: row map of C is not same as domain map of A";
      throw(Xpetra::Exceptions::RuntimeError(msg));
    }


    if (!A.isFillComplete())
      throw(Xpetra::Exceptions::RuntimeError("A is not fill-completed"));
    if (!B.isFillComplete())
      throw(Xpetra::Exceptions::RuntimeError("B is not fill-completed"));

    bool haveMultiplyDoFillComplete = call_FillComplete_on_result && doOptimizeStorage;

    if (C.getRowMap()->lib() == Xpetra::UseEpetra) {
#       ifndef HAVE_XPETRA_EPETRAEXT
      throw(Xpetra::Exceptions::RuntimeError("Xpetra::MatrixMatrix::Multiply requires EpetraExt to be compiled."));
#else
      Epetra_CrsMatrix & epA = Xpetra::MatrixMatrix::Op2NonConstEpetraCrs(A);
      Epetra_CrsMatrix & epB = Xpetra::MatrixMatrix::Op2NonConstEpetraCrs(B);
      Epetra_CrsMatrix & epC = Xpetra::MatrixMatrix::Op2NonConstEpetraCrs(C);


      int i = EpetraExt::MatrixMatrix::Multiply(epA,transposeA,epB,transposeB,epC,haveMultiplyDoFillComplete);
      if (i != 0) {
        std::ostringstream buf;
        buf << i;
        std::string msg = "EpetraExt::MatrixMatrix::Multiply return value of " + buf.str();
        throw(Exceptions::RuntimeError(msg));
      }

#endif
    } else if (C.getRowMap()->lib() == Xpetra::UseTpetra) {
#ifdef HAVE_XPETRA_TPETRA
      const Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> & tpA = Xpetra::MatrixMatrix::Op2TpetraCrs(A);
      const Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> & tpB = Xpetra::MatrixMatrix::Op2TpetraCrs(B);
      Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> &       tpC = Xpetra::MatrixMatrix::Op2NonConstTpetraCrs(C);

      //18Feb2013 JJH I'm reenabling the code that allows the matrix matrix multiply to do the fillComplete.
      //Previously, Tpetra's matrix matrix multiply did not support fillComplete.
      Tpetra::MatrixMatrix::Multiply(tpA,transposeA,tpB,transposeB,tpC,haveMultiplyDoFillComplete);
#else
      throw(Xpetra::Exceptions::RuntimeError("Xpetra must be compiled with Tpetra."));
#endif
    }

    if(call_FillComplete_on_result && !haveMultiplyDoFillComplete) {
      RCP<Teuchos::ParameterList> params = rcp(new Teuchos::ParameterList());
      params->set("Optimize Storage",doOptimizeStorage);
      C.fillComplete((transposeB) ? B.getRangeMap() : B.getDomainMap(),
          (transposeA) ? A.getDomainMap() : A.getRangeMap(),
          params);
    }

    // transfer striding information
    RCP<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> > rcpA = Teuchos::rcp_const_cast<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> >(Teuchos::rcpFromRef(A));
    RCP<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> > rcpB = Teuchos::rcp_const_cast<Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps> >(Teuchos::rcpFromRef(B));
    C.CreateView("stridedMaps", rcpA, transposeA, rcpB, transposeB); // TODO use references instead of RCPs
} // end Multiply