Thyra Package Browser (Single Doxygen Collection) Version of the Day
EpetraThyraAdaptersTestHelpers.hpp
Go to the documentation of this file.
00001 /*
00002 // @HEADER
00003 // ***********************************************************************
00004 // 
00005 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
00006 //                 Copyright (2004) Sandia Corporation
00007 // 
00008 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00009 // license for use of this work by or on behalf of the U.S. Government.
00010 // 
00011 // Redistribution and use in source and binary forms, with or without
00012 // modification, are permitted provided that the following conditions are
00013 // met:
00014 //
00015 // 1. Redistributions of source code must retain the above copyright
00016 // notice, this list of conditions and the following disclaimer.
00017 //
00018 // 2. Redistributions in binary form must reproduce the above copyright
00019 // notice, this list of conditions and the following disclaimer in the
00020 // documentation and/or other materials provided with the distribution.
00021 //
00022 // 3. Neither the name of the Corporation nor the names of the
00023 // contributors may be used to endorse or promote products derived from
00024 // this software without specific prior written permission.
00025 //
00026 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00027 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00028 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00029 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00030 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00031 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00032 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00033 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00034 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00035 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00036 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00037 //
00038 // Questions? Contact Roscoe A. Bartlett (bartlettra@ornl.gov) 
00039 // 
00040 // ***********************************************************************
00041 // @HEADER
00042 */
00043 
00044 #include "Epetra_SerialComm.h"
00045 #ifdef HAVE_MPI
00046 #  include "Epetra_MpiComm.h"
00047 #endif
00048 #include "Epetra_Map.h"
00049 #include "Epetra_CrsMatrix.h"
00050 #include "Teuchos_Array.hpp"
00051 #include "Teuchos_RCP.hpp"
00052 #include "Teuchos_as.hpp"
00053 
00054 
00055 namespace {
00056 
00057 
00058 //
00059 // Helper code and declarations
00060 //
00061 
00062 using Teuchos::as;
00063 using Teuchos::RCP;
00064 using Teuchos::rcp;
00065 using Teuchos::Array;
00066 
00067 
00068 const int g_localDim = 4; // ToDo: Make variable!
00069 
00070 
00071 RCP<const Epetra_Comm> getEpetraComm()
00072 {
00073 #ifdef HAVE_MPI
00074   return rcp(new Epetra_MpiComm(MPI_COMM_WORLD));
00075 #else
00076   return rcp(new Epetra_SerialComm());
00077 #endif
00078 }
00079 
00080 
00081 RCP<Epetra_CrsMatrix> getEpetraMatrix(int numRows, int numCols, double shift=0.0) 
00082 {
00083 
00084   const RCP<const Epetra_Comm> comm = getEpetraComm();
00085 
00086   const Epetra_Map rowMap(numRows, 0, *comm);
00087   const Epetra_Map domainMap(numCols, numCols, 0, *comm);
00088  
00089   const RCP<Epetra_CrsMatrix> epetraCrsM =
00090     rcp(new Epetra_CrsMatrix(Copy, rowMap, numCols));
00091 
00092   Array<double> rowEntries(numCols);
00093   Array<int> columnIndices(numCols);
00094   for (int j = 0; j < numCols; ++j) {
00095     columnIndices[j] = j;
00096   }
00097 
00098   const int numLocalRows = rowMap.NumMyElements();
00099 
00100   for (int i = 0; i < numLocalRows; ++i) {
00101     
00102     for (int j = 0; j < numCols; ++j) {
00103       rowEntries[j] = as<double>(i+1) + as<double>(j+1) / 10 + shift;
00104     }
00105 
00106     epetraCrsM->InsertMyValues( i, numCols, &rowEntries[0], &columnIndices[0] );
00107 
00108   }
00109 
00110   epetraCrsM->FillComplete(domainMap, rowMap);
00111 
00112   return epetraCrsM;
00113 }
00114 
00115 
00116 } // namespace
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines