/usr/include/trilinos/MoochoPack_PreEvalNewPointBarrier_Step.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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// ***********************************************************************
//
// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
// Copyright (2003) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef PRE_EVAL_NEW_POINT_BARRIER_STEP_H
#define PRE_EVAL_NEW_POINT_BARRIER_STEP_H
#include "IterationPack_AlgorithmStep.hpp"
#include "Teuchos_StandardCompositionMacros.hpp"
#include "Teuchos_StandardMemberCompositionMacros.hpp"
#include "MoochoPack_Types.hpp"
#include "IterationPack_AlgorithmStep.hpp"
#include "OptionsFromStreamPack_SetOptionsFromStreamNode.hpp"
#include "OptionsFromStreamPack_SetOptionsToTargetBase.hpp"
namespace MoochoPack {
/** \brief Standard evaluation step class for extra parameters in primal/dual barrier method.
*
* This class calculates \c invXu, \c invXl \c invXu_m_invXl
*
*/
class PreEvalNewPointBarrier_Step
: public IterationPack::AlgorithmStep // doxygen needs full path
{
public:
/** \brief relative fraction for initializing x within
* bounds.
* xl_sb = min(xl+relative_bound_push*(xu-xl),
* xl + absolute_bound_push)
* xu_sb = max(xu-relative_bound_push*(xu-xl),
* xu - absolute_bound_push)
* if (xl_sb > xu_sb) then
* x = (xl + (xu-xl)/2
* else if (x < xl_sb) then
* x = xl_sb
* else if (x > xu_sb) then
* x = xu_sb
*/
STANDARD_MEMBER_COMPOSITION_MEMBERS( value_type, relative_bound_push );
/** \brief absolute measure for initializing x within
* bounds.
* xl_sb = min(xl+relative_bound_push*(xu-xl),
* xl + absolute_bound_push)
* xu_sb = max(xu-relative_bound_push*(xu-xl),
* xu - absolute_bound_push)
* if (xl_sb > xu_sb) then
* x = (xl + (xu-xl)/2
* else if (x < xl_sb) then
* x = xl_sb
* else if (x > xu_sb) then
* x = xu_sb
*/
STANDARD_MEMBER_COMPOSITION_MEMBERS( value_type, absolute_bound_push );
/** @name Overridden from AlgorithmStep */
//@{
/** \brief . */
bool do_step(Algorithm& algo, poss_type step_poss, IterationPack::EDoStepType type
, poss_type assoc_step_poss);
void print_step( const IterationPack::Algorithm& algo, poss_type step_poss, IterationPack::EDoStepType type
, poss_type assoc_step_poss, std::ostream& out, const std::string& leading_str ) const;
//@}
/** Constructor.
*/
PreEvalNewPointBarrier_Step(
const value_type relative_bound_push = 0.01,
const value_type absolute_bound_push = 0.001
);
//@}
}; // end class PreEvalNewPointBarrier_Step
class PreEvalNewPointBarrier_StepSetOptions
: public OptionsFromStreamPack::SetOptionsFromStreamNode,
public OptionsFromStreamPack::SetOptionsToTargetBase< PreEvalNewPointBarrier_Step >
{
public:
PreEvalNewPointBarrier_StepSetOptions(
PreEvalNewPointBarrier_Step* target = 0,
const char opt_grp_name[] = "PreEvalNewPointBarrier" );
protected:
/// Overridden from SetOptionsFromStreamNode
void setOption( int option_num, const std::string& option_value );
}; // end class PreEvalNewPointBarrier_StepSetOptions
} // end namespace MoochoPack
#endif // PRE_EVAL_NEW_POINT_BARRIER_STEP_H
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