ifp_BlockMat.h

00001 /*@HEADER
00002 // ***********************************************************************
00003 // 
00004 //       Ifpack: Object-Oriented Algebraic Preconditioner Package
00005 //                 Copyright (2002) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 //@HEADER
00028 */
00029 
00030 #ifndef _IFP_BLOCKMAT_H_
00031 #define _IFP_BLOCKMAT_H_
00032 
00033 #include <iostream>
00034 #include "ifp_Matrix.h"
00035 
00036 class ifp_LocalMat;
00037 
00038 class ifp_BlockMat : public ifp_Matrix
00039 {
00040 private:
00041     ifp_LocalMat **a;
00042     int *ja;
00043     int *ia;
00044 
00045     int nrow;
00046     int ncol;
00047     int nnz;
00048     int nnzs;
00049 
00050     int *kvstr;
00051     int *kvstc;
00052 
00053 public:
00054     ifp_BlockMat(double *, int *, int *, int *, int *,
00055            int *, int, int, int, int);
00056    ~ifp_BlockMat();
00057 
00058     const ifp_LocalMat& val(unsigned int i) const {return *a[i];}
00059     ifp_LocalMat& val(unsigned int i) {return *a[i];}
00060     const int& row_ptr(unsigned int i) const {return ia[i];}
00061     const int& col_ind(unsigned int i) const {return ja[i];}
00062 
00063     int numrow() const {return nrow;}
00064     int numcol() const {return ncol;}
00065     int numnz()  const {return nnz;}
00066     int NumEntries()  const {return nnz;}
00067     int NumNonzeros()  const {return nnzs;}
00068 
00069     int dimrow() const {return kvst_row(nrow);} // scalar dimension
00070     int dimcol() const {return kvst_col(ncol);}
00071 
00072     const int& kvst_row(unsigned int i) const {return kvstr[i];}
00073     const int& kvst_col(unsigned int i) const {return kvstc[i];}
00074 
00075     void mult(int, int, const double *, int, double *, int) const;
00076     void trans_mult(int, int, const double *, int, double *, int) const;
00077 };
00078 
00079 std::ostream& operator << (std::ostream& os, const ifp_BlockMat& mat);
00080 
00081 #endif // _IFP_BLOCKMAT_H_

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