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test/BTF/cxx_main.cpp
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00001 //@HEADER
00002 // ***********************************************************************
00003 // 
00004 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
00005 //                 Copyright (2001) 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 // CrsGraph_BTF Test routine
00030 
00031 #include <EpetraExt_ConfigDefs.h>
00032 #include "EpetraExt_Version.h"
00033 
00034 #include "Epetra_Time.h"
00035 #ifdef EPETRA_MPI
00036 #include "Epetra_MpiComm.h"
00037 #include <mpi.h>
00038 #endif
00039 
00040 #include "Epetra_SerialComm.h"
00041 #include "Epetra_Map.h"
00042 #include "Epetra_CrsGraph.h"
00043 #include "EpetraExt_BTF_CrsGraph.h"
00044 #include "../epetra_test_err.h"
00045 
00046 
00047 int main(int argc, char *argv[]) {
00048 
00049   int i, ierr=0, returnierr=0;
00050 
00051 #ifdef EPETRA_MPI
00052 
00053   // Initialize MPI
00054 
00055   MPI_Init(&argc,&argv);
00056   int size, rank; // Number of MPI processes, My process ID
00057 
00058   MPI_Comm_size(MPI_COMM_WORLD, &size);
00059   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
00060 
00061 #else
00062 
00063   int size = 1; // Serial case (not using MPI)
00064   int rank = 0;
00065 
00066 #endif
00067 
00068   bool verbose = false;
00069 
00070   // Check if we should print results to standard out
00071   if (argc>1) if (argv[1][0]=='-' && argv[1][1]=='v') verbose = true;
00072 
00073 
00074 #ifdef EPETRA_MPI
00075   Epetra_MpiComm Comm(MPI_COMM_WORLD);
00076 #else
00077   Epetra_SerialComm Comm;
00078 #endif
00079   if (!verbose) Comm.SetTracebackMode(0); // This should shut down any error traceback reporting
00080 
00081   int MyPID = Comm.MyPID();
00082   int NumProc = Comm.NumProc();
00083 
00084   if (verbose) {
00085     cout << EpetraExt::EpetraExt_Version() << endl << endl;
00086     cout << Comm << endl << flush;
00087   }
00088 
00089   Comm.Barrier();
00090   bool verbose1 = verbose;
00091 
00092   if (verbose) verbose = (MyPID==0);
00093 
00094   int NumMyElements = 3;
00095   int NumGlobalElements = NumMyElements;
00096   int IndexBase = 0;
00097  
00098   cout << "MyPID: " << MyPID << ", NumMyElements: " << NumMyElements << endl;
00099 
00100   Epetra_Map Map( NumMyElements, 0, Comm );
00101   cout << Map << endl;
00102   
00103   Epetra_CrsGraph Graph( Copy, Map, 1 );
00104 
00105   int index = 2;
00106   Graph.InsertGlobalIndices( 0, 1, &index );
00107   index = 0;
00108   Graph.InsertGlobalIndices( 1, 1, &index );
00109   index = 1;
00110   Graph.InsertGlobalIndices( 2, 1, &index );
00111 
00112   Graph.FillComplete();
00113   cout << Graph << endl;
00114 
00115   EpetraExt::CrsGraph_BTF BTFTransform;
00116   Epetra_CrsGraph & NewGraph = BTFTransform( Graph );
00117 
00118   cout << NewGraph << endl;
00119 
00120 #ifdef EPETRA_MPI
00121   MPI_Finalize();
00122 #endif
00123 
00124   return returnierr;
00125 }
00126 
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