sparse_matrix_decl.hpp

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/*
   Copyright (c) 2012 The Regents of the University of California,
   through Lawrence Berkeley National Laboratory.  

   Author: Lin Lin

   This file is part of PEXSI. All rights reserved.

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   list of conditions and the following disclaimer.
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   National Laboratory, U.S. Dept. of Energy nor the names of its contributors may
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*/
#ifndef _SPARSE_MATRIX_DECL_HPP_
#define _SPARSE_MATRIX_DECL_HPP_

#include "environment.hpp"
#include "numvec_impl.hpp"

namespace  PEXSI{

        template <class F> struct SparseMatrix{
                Int          size;                            // Matrix dimension
                Int          nnz;                             // Number of nonzeros
                IntNumVec    colptr;                          // Column index pointer
                IntNumVec    rowind;                          // Starting row index pointer
                NumVec<F>    nzval;                           // Nonzero values for the sparse matrix
        };

        // Commonly used
        typedef SparseMatrix<Real>       DblSparseMatrix;
        typedef SparseMatrix<Complex>    CpxSparseMatrix;

        template <class F> struct DistSparseMatrix{
                Int          size;         

                Int          nnzLocal;                        
                
                Int          nnz;                        

                IntNumVec    colptrLocal;                     

                IntNumVec    rowindLocal;                    

                NumVec<F>    nzvalLocal;                      

                MPI_Comm     comm;        

    LongInt      Nnz();
        };

        // Commonly used
        typedef DistSparseMatrix<Real>       DblDistSparseMatrix;
        typedef DistSparseMatrix<Complex>    CpxDistSparseMatrix;



} // namespace PEXSI

#endif // _SPARSE_MATRIX_DECL_HPP_