Panzer_UniqueGlobalIndexer_EpetraUtilities.cpp

Go to the documentation of this file.

// @HEADER
// ***********************************************************************
//
//           Panzer: A partial differential equation assembly
//       engine for strongly coupled complex multiphysics systems
//                 Copyright (2011) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// 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.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Roger P. Pawlowski (rppawlo@sandia.gov) and
// Eric C. Cyr (eccyr@sandia.gov)
// ***********************************************************************
// @HEADER

#include "PanzerDofMgr_config.hpp"

#include "Panzer_UniqueGlobalIndexer_EpetraUtilities.hpp"
#include "Panzer_UniqueGlobalIndexer_EpetraUtilities_impl.hpp"

namespace panzer {

  // template
  // class ArrayToFieldVectorEpetra;

  // /** Construct a map that only uses a certain field.
//  */
Teuchos::RCP<const Epetra_BlockMap>
getFieldMapEpetra(int fieldNum,const Epetra_IntVector & fieldTVector)
{
   Teuchos::RCP<const Epetra_BlockMap> origMap = Teuchos::rcpFromRef(fieldTVector.Map());
   std::vector<int> fieldVector(fieldTVector.MyLength());
   Teuchos::ArrayView<int> av = Teuchos::arrayViewFromVector(fieldVector);
   fieldTVector.ExtractCopy(av.getRawPtr());

   std::vector<int> mapVector;
   for(std::size_t i=0;i<fieldVector.size();i++) {
      if(fieldVector[i]==fieldNum)
         mapVector.push_back(origMap->GID(i));
   }

   Teuchos::RCP<Epetra_BlockMap> finalMap
     = Teuchos::rcp(new Epetra_BlockMap(-1, static_cast<int>(mapVector.size()), Teuchos::arrayViewFromVector(mapVector).getRawPtr(), 1, Teuchos::OrdinalTraits<int>::zero(), origMap->Comm()));

   return finalMap;
}


} // end panzer