dtk_evaluator.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
 
#ifndef DTKEVALUATOR_H
#define DTKEVALUATOR_H
 
 
#include "libmesh/libmesh_config.h"
 
#ifdef LIBMESH_TRILINOS_HAVE_DTK
 
#include "libmesh/mesh.h"
 
#include "libmesh/ignore_warnings.h"
#include <DTK_MeshContainer.hpp>
#include <DTK_FieldEvaluator.hpp>
#include <DTK_FieldContainer.hpp>
 
#include <Teuchos_RCP.hpp>
#include <Teuchos_ArrayRCP.hpp>
#include "libmesh/restore_warnings.h"
 
#include <string>
 
namespace libMesh
{
 
// Forward declarations
class EquationSystems;
class System;
class DofMap;
class MeshBase;
class FEType;
 
template <typename T> class NumericVector;
 
class DTKEvaluator : public DataTransferKit::FieldEvaluator<int,DataTransferKit::FieldContainer<double>>
{
public:
  typedef DataTransferKit::MeshContainer<int> MeshContainerType;
  typedef DataTransferKit::FieldContainer<Number> FieldContainerType;
 
  DTKEvaluator(System & in_sys, std::string var_name);
 
  virtual FieldContainerType evaluate(const Teuchos::ArrayRCP<int> & elements,
                                      const Teuchos::ArrayRCP<double> & coords) override;
 
protected:
  System & sys;
  NumericVector<Number> & current_local_solution;
  EquationSystems & es;
  MeshBase & mesh;
  unsigned int dim;
  DofMap & dof_map;
  unsigned int var_num;
  const FEType & fe_type;
};
 
} // namespace libMesh
 
#endif // #ifdef LIBMESH_TRILINOS_HAVE_DTK
 
#endif // #define DTKEVALUATOR_H