/usr/include/trilinos/Thyra_ListedMultiVectorRandomizer.hpp is in libtrilinos-thyra-dev 12.10.1-3.
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// ***********************************************************************
//
// Thyra: Interfaces and Support for Abstract Numerical Algorithms
// Copyright (2004) Sandia Corporation
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#ifndef THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP
#define THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP
#include "Thyra_MultiVectorRandomizerBase.hpp"
#include "Thyra_MultiVectorStdOps.hpp"
namespace Thyra {
/** \brief <tt>MultiVectorRandomizerBase</tt> subclass that returns a revolving
* list of preset <tt>MultiVectorBase</tt> objects.
*
* This class simply returns a preset list of <tt>MultiVectorBase</tt> objects
* instead of true random multi-vectors. This can be very useful when
* combined with testing software.
*
* \ingroup Thyra_Op_Vec_ANA_Development_grp
*/
template<class Scalar>
class ListedMultiVectorRandomizer : public MultiVectorRandomizerBase<Scalar> {
public:
/** \brief Calls <tt>this->initialize()</tt>. */
ListedMultiVectorRandomizer(
const Teuchos::RCP<const MultiVectorBase<Scalar> > multiVecs[]
,const int numMultiVecs
);
/** \brief . */
void initialize(
const Teuchos::RCP<const MultiVectorBase<Scalar> > multiVecs[]
,const int numMultiVecs
);
/** \name Overridden from MultiVectorRandomizerBase */
//@{
/** \brief . */
bool isCompatible( const VectorSpaceBase<Scalar> &space ) const;
//@}
private:
/** \name Overridded private functions */
//@{
/** \brief . */
void randomizeImpl(const Ptr<MultiVectorBase<Scalar> > &mv);
//@}
private:
typedef std::vector<Teuchos::RCP<const MultiVectorBase<Scalar> > > multiVecs_t;
multiVecs_t multiVecs_;
int curr_mv_i_;
};
// //////////////////////////////
// Definitions
template<class Scalar>
ListedMultiVectorRandomizer<Scalar>::ListedMultiVectorRandomizer(
const Teuchos::RCP<const MultiVectorBase<Scalar> > multiVecs[]
,const int numMultiVecs
)
{
initialize(multiVecs,numMultiVecs);
}
template<class Scalar>
void ListedMultiVectorRandomizer<Scalar>::initialize(
const Teuchos::RCP<const MultiVectorBase<Scalar> > multiVecs[]
,const int numMultiVecs
)
{
multiVecs_.resize(numMultiVecs);
std::copy( multiVecs, multiVecs + numMultiVecs, multiVecs_.begin() );
curr_mv_i_ = 0;
}
// Overridden from MultiVectorRandomizerBase
template<class Scalar>
bool ListedMultiVectorRandomizer<Scalar>::isCompatible( const VectorSpaceBase<Scalar> &space ) const
{
return multiVecs_[curr_mv_i_]->range()->isCompatible(space);
}
// Overridded private functions
template<class Scalar>
void ListedMultiVectorRandomizer<Scalar>::randomizeImpl(
const Ptr<MultiVectorBase<Scalar> > &mv)
{
#ifdef TEUCHOS_DEBUG
TEUCHOS_TEST_FOR_EXCEPT( multiVecs_.size()==0 );
#endif
const Teuchos::RCP<const MultiVectorBase<Scalar> > currMV = multiVecs_[curr_mv_i_];
#ifdef TEUCHOS_DEBUG
THYRA_ASSERT_VEC_SPACES("ListedMultiVectorRandomizer<Scalar>::randomize(mv)", *currMV->range(), *mv->range() );
THYRA_ASSERT_VEC_SPACES("ListedMultiVectorRandomizer<Scalar>::randomize(mv)", *currMV->domain(), *mv->domain() );
#endif
Thyra::assign( mv, *currMV );
if( curr_mv_i_ == static_cast<int>(multiVecs_.size()) - 1 )
curr_mv_i_ = 0;
else
++curr_mv_i_;
}
} // namespace Thyra
#endif // THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP
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