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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 DECOMPOSITION_SYSTEM_VAR_REDUCT_H
#define DECOMPOSITION_SYSTEM_VAR_REDUCT_H
#include "ConstrainedOptPack_DecompositionSystem.hpp"
#include "Teuchos_StandardMemberCompositionMacros.hpp"
#include "AbstractLinAlgPack_BasisSystem.hpp"
namespace ConstrainedOptPack {
/** \brief Specialization of \c DecompositionSystem for variable reduction decompositions.
*
* This interface abstracts a variable reduction decomposition where:
*
\verbatim
Gc' = [ C N ]
[ E F ]
Z = [ D ]
[ I ]
Uz = F + E * D
where:
C = Gc(var_dep,con_decomp)' [nonsingular]
N = Gc(var_indep,con_decomp)'
E = Gc(var_dep,con_undecomp)'
F = Gc(var_indep,con_undecomp)'
D = -inv(C) * N
\endverbatim
*
* This interface simply allows clients to determine how \c D and \c Uz
* are implemented (implicitly or explicity).
*/
class DecompositionSystemVarReduct : public DecompositionSystem {
public:
/** @name Public types */
//@{
/** \brief . */
enum EExplicitImplicit {
MAT_IMP_EXPLICIT
,MAT_IMP_IMPLICIT
,MAT_IMP_AUTO
};
//@}
/** @name Matrix representations */
//@{
/// Set whether to use explicit or implicit <tt>D = -inv(C)*N</tt> matrix.
STANDARD_MEMBER_COMPOSITION_MEMBERS(EExplicitImplicit,D_imp);
/// Set whether to use explicit or implicit <tt>Uz = F + E * D</tt> matrix.
STANDARD_MEMBER_COMPOSITION_MEMBERS(EExplicitImplicit,Uz_imp);
// ToDo: The above could be implemented as pure virtual funtions if needed later!
//@}
/** @name Constructors / initializers */
//@{
/** \brief . */
DecompositionSystemVarReduct(
EExplicitImplicit D_imp = MAT_IMP_AUTO
,EExplicitImplicit Uz_imp = MAT_IMP_AUTO
)
:D_imp_(D_imp), Uz_imp_(Uz_imp)
{}
//@}
/** @name Variable partitions. */
//@{
/** \brief . */
virtual Range1D var_indep() const = 0;
/** \brief . */
virtual Range1D var_dep() const = 0;
//@}
private:
// not defined and not to be called!
DecompositionSystemVarReduct(const DecompositionSystemVarReduct&);
DecompositionSystemVarReduct& operator=(const DecompositionSystemVarReduct&);
}; // end class DecompositionSystemVarReduct
} // end namespace ConstrainedOptPack
#endif // DECOMPOSITION_SYSTEM_VAR_REDUCT_H
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