AbstractLinAlgPack_MatrixConvertToSparse.hpp

Go to the documentation of this file.

// @HEADER
// ***********************************************************************
// 
// 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.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
// 
// ***********************************************************************
// @HEADER

#ifndef MATRIX_CONVERT_TO_SPARSE_H
#define MATRIX_CONVERT_TO_SPARSE_H

#include "AbstractLinAlgPack_Types.hpp"
#include "AbstractLinAlgPack_MatrixBase.hpp"

namespace AbstractLinAlgPack {

class MatrixConvertToSparse
  : virtual public AbstractLinAlgPack::MatrixBase // doxygen needs full path
{
public:

  enum EExtractRegion {
    EXTRACT_FULL_MATRIX       
    ,EXTRACT_UPPER_TRIANGULAR 
    ,EXTRACT_LOWER_TRIANGULAR 
  };
  enum EElementUniqueness {
    ELEMENTS_FORCE_UNIQUE             
    ,ELEMENTS_ALLOW_DUPLICATES_SUM    
  };

  virtual index_type num_nonzeros(
    EExtractRegion        extract_region
    ,EElementUniqueness   element_uniqueness
    ) const = 0;

  virtual void coor_extract_nonzeros(
    EExtractRegion                extract_region
    ,EElementUniqueness           element_uniqueness
    ,const index_type             len_Aval
    ,value_type                   Aval[]
    ,const index_type             len_Aij
    ,index_type                   Arow[]
    ,index_type                   Acol[]
    ,const index_type             row_offset = 0
    ,const index_type             col_offset = 0
    ) const = 0;
  
  // Todo: Include extraction routines for Compressed Row (Column) when needed.

};  // end class MatrixConvertToSparse

} // end namespace AbstractLinAlgPack 

#endif  // MATRIX_CONVERT_TO_SPARSE_H