shell_matrix.C

Go to the documentation of this file.

// 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
 
 
 
// Local Includes
#include "libmesh/shell_matrix.h"
#include "libmesh/petsc_shell_matrix.h"
#include "libmesh/enum_solver_package.h"
 
namespace libMesh
{
 
  // Full specialization for Real datatypes
  template <typename T>
  std::unique_ptr<ShellMatrix<T>>
  ShellMatrix<T>::build(const Parallel::Communicator & comm,
                           const SolverPackage solver_package)
  {
    // Avoid unused parameter warnings when no solver packages are enabled.
    libmesh_ignore(comm);
 
    // Build the appropriate vector
    switch (solver_package)
      {
  #ifdef LIBMESH_HAVE_PETSC
      case PETSC_SOLVERS:
        return std::make_unique<PetscShellMatrix<T>>(comm);
  #endif
 
      default:
        libmesh_error_msg("ERROR:  Unrecognized solver package: " << solver_package);
      }
  }
 
//------------------------------------------------------------------
// Explicit instantiations
template class LIBMESH_EXPORT ShellMatrix<Number>;
 
} // namespace libMesh