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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 MATRIX_SCALING_STRATEGY_H
#define MATRIX_SCALING_STRATEGY_H
namespace AbstractLinAlgPack {
/** \brief Abstract interface for sparse matrix scaling strategies
*
* ToDo: Finish documentation!
*/
class MatrixScaling_Strategy {
public:
/** \brief . */
virtual ~MatrixScaling_Strategy() {}
/** @name Pure virtual methods to be overridden by subclasses */
//@{
/// Scale the matrix and save the scalings for later use for rhs and lhs.
virtual void scale_matrix(
index_type m, index_type n, index_type nz
,const index_type row_i[], const index_type col_j[]
,bool new_matrix, value_type A[]
) = 0;
/// Scale the rhs vector
virtual void scale_rhs( BLAS_Cpp::Transp trans, value_type b[] ) const = 0;
/// Scale the lhs vector
virtual void scale_lhs( BLAS_Cpp::Transp trans, value_type x[] ) const = 0;
//@}
}; // end class MatrixScaling_Strategy
} // end namespace AbstractLinAlgPack
#endif // MATRIX_SCALING_STRATEGY_H
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