/usr/include/trilinos/MoochoPack_InitFinDiffReducedHessian_StepSetOptions.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 INIT_FIN_DIFF_REDUCED_HESSIAN_STEP_SET_OPTIONS_H
#define INIT_FIN_DIFF_REDUCED_HESSIAN_STEP_SET_OPTIONS_H
#include "MoochoPack_InitFinDiffReducedHessian_Step.hpp"
#include "OptionsFromStreamPack_SetOptionsFromStreamNode.hpp"
#include "OptionsFromStreamPack_SetOptionsToTargetBase.hpp"
namespace MoochoPack {
/** \brief Set options for InitFinDiffReducedHessian_Step from an
  * OptionsFromStream object.
  *
  * The default options group name is InitFinDiffReducedHessian.
  *
  * The options group is:
  *
  \begin{verbatim}
  options_group InitFinDiffReducedHessian {
    initialization_method   = SCALE_DIAGONAL_ABS;
    max_cond                = 1e+1;
    min_diag                = 1e-8;
    step_scale              = 1e-1;
  }
  \end{verbatim}
  *
  * \begin{description}
  *	\item[initialization_method] Determines how the diagonal is initialized.
  *		from the finite difference taken.
  *		\begin{description}
  *		\item[SCALE_IDENTITY]      diag(i) = max( ||rGf_fd||inf , smallest_ele )
  *		\item[SCALE_DIAGONAL]      diag(i) = max( rGf_fd(i)     , smallest_ele )
  *		\item[SCALE_DIAGONAL_ABS]  diag(i) = max( abs(rGf_fd(i)), smallest_ele )
  *		\end{description}
  *		where: smallest_ele = max( ||rGf_fd||inf / max_cond , min_diag )
  *	\item[max_cond] The maximum condition of the initialized matrix.
  *		See initialization_method.\\
  *		Example: max_cond = 1e+1.
  *	\item[min_diag] The smallest absolute diagonal element.\\
  *		Example: min_diag = 1e-8.
  *	\item[step_scale] scales the step for the finite difference by
  *		#u = scale_step / ||Z*e||inf#.
  *		The finite difference is then taken as:\\
  *		#rGf_fd = ( Z_k * g(x_k + u * Z*e - rGf_k ) / u#\\
  *		Example: step_scale = 1.0.
  */
class InitFinDiffReducedHessian_StepSetOptions
  : public OptionsFromStreamPack::SetOptionsFromStreamNode 
    , public OptionsFromStreamPack::SetOptionsToTargetBase<
      InitFinDiffReducedHessian_Step >
{
public:
  /** \brief . */
  InitFinDiffReducedHessian_StepSetOptions(
      InitFinDiffReducedHessian_Step* target = 0
    , const char opt_grp_name[] = "InitFinDiffReducedHessian" );
protected:
  /// Overridden from SetOptionsFromStreamNode
  void setOption( int option_num, const std::string& option_value );
};	// end class InitFinDiffReducedHessian_StepSetOptions
}	// end namespace MoochoPack
#endif	// INIT_FIN_DIFF_REDUCED_HESSIAN_STEP_SET_OPTIONS_H
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