/usr/include/trilinos/Rythmos_ImplicitBDFStepperErrWtVecCalc.hpp is in libtrilinos-rythmos-dev 12.12.1-5.
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// ***********************************************************************
//
// Rythmos Package
// Copyright (2006) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
// USA
// Questions? Contact Todd S. Coffey (tscoffe@sandia.gov)
//
// ***********************************************************************
//@HEADER
#ifndef Rythmos_IMPLICITBDF_STEPPER_ERR_WT_VEC_CALC_H
#define Rythmos_IMPLICITBDF_STEPPER_ERR_WT_VEC_CALC_H
#include "Rythmos_ErrWtVecCalcBase.hpp"
namespace Rythmos {
template<class Scalar>
class ImplicitBDFStepperErrWtVecCalc
: virtual public ErrWtVecCalcBase<Scalar>
{
public:
/** \brief . */
void errWtVecSet(
Thyra::VectorBase<Scalar>* weight
,const Thyra::VectorBase<Scalar>& vector
,Scalar relTol
,Scalar absTol
) const;
/** \name Overridden from ParameterListAcceptor */
//@{
/** \brief . */
void setParameterList(RCP<Teuchos::ParameterList> const& paramList);
/** \brief . */
RCP<Teuchos::ParameterList> getNonconstParameterList();
/** \brief . */
RCP<Teuchos::ParameterList> unsetParameterList();
/** \brief . */
RCP<const Teuchos::ParameterList> getValidParameters() const;
//@}
private:
RCP<Teuchos::ParameterList> paramList_;
};
template<class Scalar>
void ImplicitBDFStepperErrWtVecCalc<Scalar>::errWtVecSet(
Thyra::VectorBase<Scalar>* weight
,const Thyra::VectorBase<Scalar>& vector
,Scalar relTol
,Scalar absTol
) const
{
using Teuchos::as;
using Teuchos::ptrFromRef;
typedef Teuchos::ScalarTraits<Scalar> ST;
TEUCHOS_TEST_FOR_EXCEPT(weight==NULL);
TEUCHOS_TEST_FOR_EXCEPTION(
( ( relTol == ST::zero() ) && ( absTol == ST::zero() ) ),
std::logic_error,
"Error, relTol and absTol cannot both be zero!\n");
Thyra::VectorBase<Scalar> &w = *weight;
Thyra::abs(vector, ptrFromRef(w));
Vt_S(ptrFromRef(w), relTol);
Vp_S(ptrFromRef(w), absTol);
reciprocal(w, ptrFromRef(w));
Vt_StV(ptrFromRef(w), ST::one(), w); // We square w because of how
// weighted norm_2 is computed.
// divide by N to get RMS norm
int N = vector.space()->dim();
Vt_S(ptrFromRef(w), as<Scalar>(1.0/N));
// Now you can compute WRMS norm as:
// Scalar WRMSnorm = norm_2(w,y); // WRMS norm of y with respect to weights w.
RCP<Teuchos::FancyOStream> out = this->getOStream();
Teuchos::EVerbosityLevel verbLevel = this->getVerbLevel();
Teuchos::OSTab ostab(out,1,"errWtVecSet");
if ( as<int>(verbLevel) >= as<int>(Teuchos::VERB_EXTREME) ) {
*out << "weight = " << std::endl;
weight->describe(*out,verbLevel);
}
}
template<class Scalar>
void ImplicitBDFStepperErrWtVecCalc<Scalar>::setParameterList(
RCP<Teuchos::ParameterList> const& paramList
)
{
TEUCHOS_TEST_FOR_EXCEPT(paramList == Teuchos::null);
paramList->validateParameters(*this->getValidParameters(),0);
paramList_ = paramList;
Teuchos::readVerboseObjectSublist(&*paramList_,this);
}
template<class Scalar>
RCP<Teuchos::ParameterList>
ImplicitBDFStepperErrWtVecCalc<Scalar>::unsetParameterList()
{
RCP<Teuchos::ParameterList> temp_param_list = paramList_;
paramList_ = Teuchos::null;
return(temp_param_list);
}
template<class Scalar>
RCP<Teuchos::ParameterList>
ImplicitBDFStepperErrWtVecCalc<Scalar>::getNonconstParameterList()
{
return(paramList_);
}
template<class Scalar>
RCP<const Teuchos::ParameterList>
ImplicitBDFStepperErrWtVecCalc<Scalar>::getValidParameters() const
{
static RCP<Teuchos::ParameterList> validPL;
if (is_null(validPL)) {
RCP<Teuchos::ParameterList>
pl = Teuchos::parameterList();
Teuchos::setupVerboseObjectSublist(&*pl);
validPL = pl;
}
return (validPL);
}
} // namespace Rythmos
#endif // Rythmos_IMPLICITBDF_STEPPER_ERR_WT_VEC_CALC_H
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