petsc_snes.cc

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2023 - 2026 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
 
#ifndef DOXYGEN
 
#  include <deal.II/base/config.h>
 
#  ifdef DEAL_II_WITH_PETSC
 
#    include <deal.II/lac/petsc_block_sparse_matrix.h>
#    include <deal.II/lac/petsc_snes.templates.h>
 
 
#  endif // DEAL_II_WITH_PETSC
#endif
 
DEAL_II_NAMESPACE_OPEN
 
#ifndef DOXYGEN
#  ifdef DEAL_II_WITH_PETSC
 
namespace PETScWrappers
{
  void
  NonlinearSolverData::add_parameters(ParameterHandler &prm)
  {
    prm.enter_subsection("Running parameters");
    prm.add_parameter(
      "options prefix",
      options_prefix,
      "The string indicating the options prefix for command line customization.");
    prm.add_parameter("solver type",
                      snes_type,
                      "The string indicating the PETSc SNES type.");
    prm.add_parameter("linesearch type",
                      snes_linesearch_type,
                      "The string indicating the PETSc linesearch type.");
    prm.add_parameter("absolute error tolerance",
                      absolute_tolerance,
                      "Absolute error tolerance.");
    prm.add_parameter("relative error tolerance",
                      relative_tolerance,
                      "Relative error tolerance.");
    prm.add_parameter("step tolerance", step_tolerance, "Step tolerance.");
    prm.add_parameter("maximum iterations",
                      maximum_non_linear_iterations,
                      "Maximum number of iterations allowed.");
    prm.add_parameter("maximum function evaluations",
                      max_n_function_evaluations,
                      "Maximum number of function evaluations allowed.");
    prm.leave_subsection();
  }
 
} // namespace PETScWrappers
 
template class PETScWrappers::NonlinearSolver<>;
template class PETScWrappers::NonlinearSolver<PETScWrappers::MPI::Vector>;
template class PETScWrappers::NonlinearSolver<PETScWrappers::MPI::BlockVector>;
template class PETScWrappers::NonlinearSolver<PETScWrappers::MPI::Vector,
                                              PETScWrappers::MPI::SparseMatrix>;
template class PETScWrappers::NonlinearSolver<
  PETScWrappers::MPI::BlockVector,
  PETScWrappers::MPI::BlockSparseMatrix>;
 
 
 
#  endif // DEAL_II_WITH_PETSC
#endif
DEAL_II_NAMESPACE_CLOSE