sparse_matrix.hpp

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

   Author: Mathias Jacquelin and Lin Lin

   This file is part of PEXSI. All rights reserved.

   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.
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   (3) Neither the name of the University of California, Lawrence Berkeley
   National Laboratory, U.S. Dept. of Energy nor the names of its contributors may
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*/
#ifndef _PEXSI_SPARSE_MATRIX_HPP_
#define _PEXSI_SPARSE_MATRIX_HPP_

#include "environment.hpp"
#include "NumVec.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

#include "sparse_matrix_impl.hpp"

#endif // _PEXSI_SPARSE_MATRIX_HPP_