optimization_solver.C

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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
 
 
 
// Local Includes
#include "libmesh/optimization_solver.h"
#include "libmesh/tao_optimization_solver.h"
#include "libmesh/nlopt_optimization_solver.h"
#include "libmesh/enum_solver_package.h"
 
// C++ Includes
#include <memory>
 
namespace libMesh
{
 
template <typename T>
inline
OptimizationSolver<T>::OptimizationSolver (sys_type & s) :
  ParallelObject(s),
  objective_object(nullptr),
  gradient_object(nullptr),
  hessian_object(nullptr),
  equality_constraints_object(nullptr),
  equality_constraints_jacobian_object(nullptr),
  inequality_constraints_object(nullptr),
  inequality_constraints_jacobian_object(nullptr),
  lower_and_upper_bounds_object(nullptr),
  max_objective_function_evaluations(500),
  objective_function_relative_tolerance(1.e-4),
  verbose(false),
  _system(s),
  _is_initialized (false)
{
}
 
 
 
template <typename T>
inline
OptimizationSolver<T>::~OptimizationSolver () = default;
 
 
 
template <typename T>
std::unique_ptr<OptimizationSolver<T>>
OptimizationSolver<T>::build(sys_type & s, const SolverPackage solver_package)
{
  // Prevent unused variables warnings when Tao is not available
  libmesh_ignore(s);
 
  // Build the appropriate solver
  switch (solver_package)
    {
 
#if defined(LIBMESH_HAVE_PETSC_TAO) && !defined(LIBMESH_USE_COMPLEX_NUMBERS)
    case PETSC_SOLVERS:
      return std::make_unique<TaoOptimizationSolver<T>>(s);
#endif // #if defined(LIBMESH_HAVE_PETSC_TAO) && !defined(LIBMESH_USE_COMPLEX_NUMBERS)
 
#if defined(LIBMESH_HAVE_NLOPT) && !defined(LIBMESH_USE_COMPLEX_NUMBERS)
    case NLOPT_SOLVERS:
      return std::make_unique<NloptOptimizationSolver<T>>(s);
#endif // #if defined(LIBMESH_HAVE_NLOPT) && !defined(LIBMESH_USE_COMPLEX_NUMBERS)
 
    default:
      libmesh_error_msg("ERROR:  Unrecognized solver package: " << solver_package);
    }
}
 
 
//------------------------------------------------------------------
// Explicit instantiations
template class LIBMESH_EXPORT OptimizationSolver<Number>;
 
} // namespace libMesh