landlab.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2025-2026 by the ASPECT authors.
//
// This file is part of ASPECT.
//
// Detailed license information governing the source code and
// contributions can be found in the folder LICENSES and in
// LICENSE and CONTRIBUTING.md at the top level directory.
//
// ------------------------------------------------------


#ifndef _aspect_mesh_deformation_landlab_h
#define _aspect_mesh_deformation_landlab_h

#include <aspect/mesh_deformation/interface.h>
#include <aspect/mesh_deformation/parallel_unstructured_interface.h>
#include <aspect/simulator_access.h>

#include <aspect/python_helper.h>

namespace aspect
{
  namespace MeshDeformation
  {
    template <int dim>
    class Landlab : public ParallelUnstructuredInterface<dim>
    {
      public:
        void initialize() override;

        void update() override;

        virtual
        double boundary_composition (const types::boundary_id boundary_indicator,
                                     const Point<dim> &position,
                                     const unsigned int compositional_field) const override;

        virtual
        std::vector<Tensor<1,dim>>
        compute_updated_velocities_at_points (const std::vector<std::vector<double>> &current_solution_at_points) const override;

        void
        evaluate_derived_quantities_at_points (std::vector<std::vector<double>> &variable_data,
                                               std::vector<std::string> &variable_names) const;

        void
        compute_initial_deformation_as_constraints(const Mapping<dim> &mapping,
                                                   const DoFHandler<dim> &mesh_deformation_dof_handler,
                                                   const types::boundary_id boundary_indicator,
                                                   AffineConstraints<double> &constraints) const override;

        static
        void declare_parameters (ParameterHandler &prm);

        void parse_parameters (ParameterHandler &prm) override;

#if defined(ASPECT_WITH_LANDLAB)
      private:
        unsigned int n_landlab_ranks;

        MPI_Comm landlab_communicator;

        bool this_rank_runs_landlab;

        std::string script_path;

        std::string script_module_name;

        bool is_spherical;

        std::vector<std::string> additional_named_quantities;

        PyObject *pModule;
#endif
    };
  }
}

#endif