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C++ MultiVector::get2dView方法代码示例

本文整理汇总了C++中tpetra::MultiVector::get2dView方法的典型用法代码示例。如果您正苦于以下问题：C++ MultiVector::get2dView方法的具体用法？C++ MultiVector::get2dView怎么用？C++ MultiVector::get2dView使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类tpetra::MultiVector的用法示例。


在下文中一共展示了MultiVector::get2dView方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: 

void SingletonFilter<MatrixType>::CreateReducedRHSTempl(const Tpetra::MultiVector<DomainScalar,LocalOrdinal,GlobalOrdinal,Node>& LHS,
                                                        const Tpetra::MultiVector<RangeScalar,LocalOrdinal,GlobalOrdinal,Node>& RHS,
                                                        Tpetra::MultiVector<RangeScalar,LocalOrdinal,GlobalOrdinal,Node>& ReducedRHS)
{
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<const RangeScalar > > RHS_ptr = RHS.get2dView();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<const DomainScalar> > LHS_ptr = LHS.get2dView();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<RangeScalar> >        ReducedRHS_ptr = ReducedRHS.get2dViewNonConst();

  size_t NumVectors = LHS.getNumVectors();

  for (size_t i = 0 ; i < NumRows_ ; ++i)
    for (size_t k = 0 ; k < NumVectors ; ++k)
      ReducedRHS_ptr[k][i] = RHS_ptr[k][InvReorder_[i]];

  for (size_t i = 0 ; i < NumRows_ ; ++i) {
    LocalOrdinal ii = InvReorder_[i];
    size_t Nnz;
    A_->getLocalRowCopy(ii,Indices_(),Values_(),Nnz);

    for (size_t j = 0 ; j < Nnz ; ++j) {
      if (Reorder_[Indices_[j]] == -1) {
        for (size_t k = 0 ; k < NumVectors ; ++k)
          ReducedRHS_ptr[k][i] -= (RangeScalar)Values_[j] * (RangeScalar)LHS_ptr[k][Indices_[j]];
      }
    }
  }
}
开发者ID:bartlettroscoe，项目名称:trilinos_old_public，代码行数:27，代码来源:Ifpack2_SingletonFilter_def.hpp

示例2: 

void ReorderFilter<MatrixType>::permuteOriginalToReorderedTempl(const Tpetra::MultiVector<DomainScalar,local_ordinal_type,global_ordinal_type,node_type> &originalX,
                                                                Tpetra::MultiVector<RangeScalar,local_ordinal_type,global_ordinal_type,node_type> &reorderedY) const
{
  TEUCHOS_TEST_FOR_EXCEPTION(originalX.getNumVectors() != reorderedY.getNumVectors(), std::runtime_error,
                             "Ifpack2::ReorderFilter::permuteOriginalToReordered ERROR: X.getNumVectors() != Y.getNumVectors().");

  Teuchos::ArrayRCP<Teuchos::ArrayRCP<const DomainScalar> > x_ptr = originalX.get2dView();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<RangeScalar> >        y_ptr = reorderedY.get2dViewNonConst();

  for(size_t k=0; k < originalX.getNumVectors(); k++)
    for(local_ordinal_type i=0; (size_t)i< originalX.getLocalLength(); i++)
      y_ptr[k][perm_[i]] = (RangeScalar)x_ptr[k][i];
}
开发者ID:rorypeck，项目名称:trilinos，代码行数:13，代码来源:Ifpack2_ReorderFilter_def.hpp

示例3: if

void ReorderFilter<MatrixType>::
apply (const Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type> &X,
       Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type> &Y,
       Teuchos::ETransp mode,
       scalar_type alpha,
       scalar_type beta) const
{
  typedef Teuchos::ScalarTraits<scalar_type> STS;

  // Note: This isn't AztecOO compliant.  But neither was Ifpack's version.
  // Note: The localized maps mean the matvec is trivial (and has no import)
  TEUCHOS_TEST_FOR_EXCEPTION(
    X.getNumVectors() != Y.getNumVectors(), std::runtime_error,
    "Ifpack2::ReorderFilter::apply: X.getNumVectors() != Y.getNumVectors().");

  const scalar_type zero = STS::zero ();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<const scalar_type> > x_ptr = X.get2dView();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<scalar_type> > y_ptr = Y.get2dViewNonConst();

  Y.putScalar (zero);
  const size_t NumVectors = Y.getNumVectors ();

  for (size_t i = 0; i < A_->getNodeNumRows (); ++i) {
    size_t Nnz;
    // Use this class's getrow to make the below code simpler
    getLocalRowCopy (i, Indices_ (), Values_ (), Nnz);
    if (mode == Teuchos::NO_TRANS) {
      for (size_t j = 0; j < Nnz; ++j) {
        for (size_t k = 0; k < NumVectors; ++k) {
          y_ptr[k][i] += Values_[j] * x_ptr[k][Indices_[j]];
        }
      }
    }
    else if (mode == Teuchos::TRANS) {
      for (size_t j = 0; j < Nnz; ++j) {
        for (size_t k = 0; k < NumVectors; ++k) {
          y_ptr[k][Indices_[j]] += Values_[j] * x_ptr[k][i];
        }
      }
    }
    else { //mode==Teuchos::CONJ_TRANS
      for (size_t j = 0; j < Nnz; ++j) {
        for (size_t k = 0; k < NumVectors; ++k) {
          y_ptr[k][Indices_[j]] += STS::conjugate(Values_[j]) * x_ptr[k][i];
        }
      }
    }
  }
}
开发者ID:rorypeck，项目名称:trilinos，代码行数:49，代码来源:Ifpack2_ReorderFilter_def.hpp

示例4: if

void SingletonFilter<MatrixType>::apply(const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &X, 
				       Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &Y, 
				       Teuchos::ETransp mode, 
				       Scalar alpha,
				       Scalar beta) const
{  
  // Note: This isn't AztecOO compliant.  But neither was Ifpack's version.

  TEUCHOS_TEST_FOR_EXCEPTION(X.getNumVectors() != Y.getNumVectors(), std::runtime_error,
			     "Ifpack2::SingletonFilter::apply ERROR: X.getNumVectors() != Y.getNumVectors().");

  Scalar zero = Teuchos::ScalarTraits<Scalar>::zero();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<const Scalar> > x_ptr = X.get2dView();
  Teuchos::ArrayRCP<Teuchos::ArrayRCP<Scalar> >       y_ptr = Y.get2dViewNonConst();

  Y.putScalar(zero);
  size_t NumVectors = Y.getNumVectors();


  for (size_t i = 0 ; i < NumRows_ ; ++i) {
    size_t Nnz;
    // Use this class's getrow to make the below code simpler
    getLocalRowCopy(i,Indices_(),Values_(),Nnz);
    if (mode==Teuchos::NO_TRANS){
      for (size_t j = 0 ; j < Nnz ; ++j) 
	for (size_t k = 0 ; k < NumVectors ; ++k)
	  y_ptr[k][i] += Values_[j] * x_ptr[k][Indices_[j]];      
    }
    else if (mode==Teuchos::TRANS){
      for (size_t j = 0 ; j < Nnz ; ++j) 
	for (size_t k = 0 ; k < NumVectors ; ++k)
	  y_ptr[k][Indices_[j]] += Values_[j] * x_ptr[k][i];
    }
    else { //mode==Teuchos::CONJ_TRANS
      for (size_t j = 0 ; j < Nnz ; ++j) 
	for (size_t k = 0 ; k < NumVectors ; ++k)
	  y_ptr[k][Indices_[j]] += Teuchos::ScalarTraits<Scalar>::conjugate(Values_[j]) * x_ptr[k][i];
    }
  }
}
开发者ID:cakeisalie，项目名称:oomphlib_003，代码行数:40，代码来源:Ifpack2_SingletonFilter_def.hpp

示例5: if

void
OverlappingRowMatrix<MatrixType>::
apply (const Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type> &X,
       Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type> &Y,
       Teuchos::ETransp mode,
       scalar_type alpha,
       scalar_type beta) const
{
  using Teuchos::ArrayRCP;
  using Teuchos::as;
  typedef scalar_type RangeScalar;
  typedef scalar_type DomainScalar;

  typedef Teuchos::ScalarTraits<RangeScalar> STRS;
  TEUCHOS_TEST_FOR_EXCEPTION(
    X.getNumVectors() != Y.getNumVectors(), std::runtime_error,
    "Ifpack2::OverlappingRowMatrix::apply: The input X and the output Y must "
    "have the same number of columns.  X.getNumVectors() = "
    << X.getNumVectors() << " != Y.getNumVectors() = " << Y.getNumVectors()
    << ".");

  // FIXME (mfh 13 July 2013) This would be a good candidate for a
  // Kokkos local parallel operator implementation.  That would
  // obviate the need for getting views of the data and make the code
  // below a lot simpler.

  const RangeScalar zero = STRS::zero ();
  ArrayRCP<ArrayRCP<const DomainScalar> > x_ptr = X.get2dView();
  ArrayRCP<ArrayRCP<RangeScalar> >        y_ptr = Y.get2dViewNonConst();
  Y.putScalar(zero);
  size_t NumVectors = Y.getNumVectors();

  const size_t numMyRowsA = A_->getNodeNumRows ();
  for (size_t i = 0; i < numMyRowsA; ++i) {
    size_t Nnz;
    // Use this class's getrow to make the below code simpler
    A_->getLocalRowCopy (i, Indices_ (),Values_ (), Nnz);
    if (mode == Teuchos::NO_TRANS) {
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][i] += as<RangeScalar> (Values_[j]) *
            as<RangeScalar> (x_ptr[k][Indices_[j]]);
    }
    else if (mode == Teuchos::TRANS){
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][Indices_[j]] += as<RangeScalar> (Values_[j]) *
            as<RangeScalar> (x_ptr[k][i]);
    }
    else { // mode == Teuchos::CONJ_TRANS
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][Indices_[j]] +=
            STRS::conjugate (as<RangeScalar> (Values_[j])) *
            as<RangeScalar> (x_ptr[k][i]);
    }
  }

  const size_t numMyRowsB = ExtMatrix_->getNodeNumRows ();
  for (size_t i = 0 ; i < numMyRowsB ; ++i) {
    size_t Nnz;
    // Use this class's getrow to make the below code simpler
    ExtMatrix_->getLocalRowCopy (i, Indices_ (), Values_ (), Nnz);
    if (mode == Teuchos::NO_TRANS) {
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][numMyRowsA+i] += as<RangeScalar> (Values_[j]) *
            as<RangeScalar> (x_ptr[k][Indices_[j]]);
    }
    else if (mode == Teuchos::TRANS) {
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][numMyRowsA+Indices_[j]] += as<RangeScalar> (Values_[j]) *
            as<RangeScalar> (x_ptr[k][i]);
    }
    else { // mode == Teuchos::CONJ_TRANS
      for (size_t j = 0; j < Nnz; ++j)
        for (size_t k = 0; k < NumVectors; ++k)
          y_ptr[k][numMyRowsA+Indices_[j]] +=
            STRS::conjugate (as<RangeScalar> (Values_[j])) *
            as<RangeScalar> (x_ptr[k][i]);
    }
  }
}
开发者ID:gitter-badger，项目名称:quinoa，代码行数:84，代码来源:Ifpack2_OverlappingRowMatrix_def.hpp


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