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test/BTF/cxx_main.cpp
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00004 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
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00041 
00042 // CrsGraph_BTF Test routine
00043 
00044 #include <EpetraExt_ConfigDefs.h>
00045 #include "EpetraExt_Version.h"
00046 
00047 #include "Epetra_Time.h"
00048 #ifdef EPETRA_MPI
00049 #include "Epetra_MpiComm.h"
00050 #include <mpi.h>
00051 #endif
00052 
00053 #include "Epetra_SerialComm.h"
00054 #include "Epetra_Map.h"
00055 #include "Epetra_CrsGraph.h"
00056 #include "EpetraExt_BTF_CrsGraph.h"
00057 #include "../epetra_test_err.h"
00058 
00059 
00060 int main(int argc, char *argv[]) {
00061 
00062   int i, ierr=0, returnierr=0;
00063 
00064 #ifdef EPETRA_MPI
00065 
00066   // Initialize MPI
00067 
00068   MPI_Init(&argc,&argv);
00069   int size, rank; // Number of MPI processes, My process ID
00070 
00071   MPI_Comm_size(MPI_COMM_WORLD, &size);
00072   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
00073 
00074 #else
00075 
00076   int size = 1; // Serial case (not using MPI)
00077   int rank = 0;
00078 
00079 #endif
00080 
00081   bool verbose = false;
00082 
00083   // Check if we should print results to standard out
00084   if (argc>1) if (argv[1][0]=='-' && argv[1][1]=='v') verbose = true;
00085 
00086 
00087 #ifdef EPETRA_MPI
00088   Epetra_MpiComm Comm(MPI_COMM_WORLD);
00089 #else
00090   Epetra_SerialComm Comm;
00091 #endif
00092   if (!verbose) Comm.SetTracebackMode(0); // This should shut down any error traceback reporting
00093 
00094   int MyPID = Comm.MyPID();
00095   int NumProc = Comm.NumProc();
00096 
00097   if (verbose) {
00098     cout << EpetraExt::EpetraExt_Version() << endl << endl;
00099     cout << Comm << endl << flush;
00100   }
00101 
00102   Comm.Barrier();
00103   bool verbose1 = verbose;
00104 
00105   if (verbose) verbose = (MyPID==0);
00106 
00107   int NumMyElements = 3;
00108   int NumGlobalElements = NumMyElements;
00109   int IndexBase = 0;
00110  
00111   cout << "MyPID: " << MyPID << ", NumMyElements: " << NumMyElements << endl;
00112 
00113   Epetra_Map Map( NumMyElements, 0, Comm );
00114   cout << Map << endl;
00115   
00116   Epetra_CrsGraph Graph( Copy, Map, 1 );
00117 
00118   int index = 2;
00119   Graph.InsertGlobalIndices( 0, 1, &index );
00120   index = 0;
00121   Graph.InsertGlobalIndices( 1, 1, &index );
00122   index = 1;
00123   Graph.InsertGlobalIndices( 2, 1, &index );
00124 
00125   Graph.FillComplete();
00126   cout << Graph << endl;
00127 
00128   EpetraExt::CrsGraph_BTF BTFTransform;
00129   Epetra_CrsGraph & NewGraph = BTFTransform( Graph );
00130 
00131   cout << NewGraph << endl;
00132 
00133 #ifdef EPETRA_MPI
00134   MPI_Finalize();
00135 #endif
00136 
00137   return returnierr;
00138 }
00139 
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