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Reference documentation for deal.II version 9.6.0
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#include <deal.II/lac/petsc_snes.h>
Public Types | |
using | real_type = PetscReal |
Public Member Functions | |
NonlinearSolverData (const std::string &options_prefix="", const std::string &snes_type="", const std::string &snes_linesearch_type="", const real_type absolute_tolerance=0, const real_type relative_tolerance=0, const real_type step_tolerance=0, const int maximum_non_linear_iterations=-1, const int max_n_function_evaluations=-1) | |
void | add_parameters (ParameterHandler &prm) |
Public Attributes | |
std::string | options_prefix |
std::string | snes_type |
std::string | snes_linesearch_type |
real_type | absolute_tolerance |
real_type | relative_tolerance |
real_type | step_tolerance |
int | maximum_non_linear_iterations |
int | max_n_function_evaluations |
Additional parameters that can be passed to the NonlinearSolver class.
Definition at line 45 of file petsc_snes.h.
using PETScWrappers::NonlinearSolverData::real_type = PetscReal |
Type that holds real-valued numbers.
Used to represent norms.
Definition at line 53 of file petsc_snes.h.
void PETScWrappers::NonlinearSolverData::add_parameters | ( | ParameterHandler & | prm | ) |
Import parameter values.
std::string PETScWrappers::NonlinearSolverData::options_prefix |
Options database prefix.
Definition at line 103 of file petsc_snes.h.
std::string PETScWrappers::NonlinearSolverData::snes_type |
PETSc nonlinear solver type. Valid options include "newtonls" (Newton with line search), "newtontr" (Newton with Trust Region), "nrichardson" (Picard), and many more. See https://petsc.org/release/manualpages/SNES/SNESType/ for more information.
Definition at line 112 of file petsc_snes.h.
std::string PETScWrappers::NonlinearSolverData::snes_linesearch_type |
Linesearch type. Valid options include "bt" (backtracking) and "basic" (no line search). See https://petsc.org/release/manualpages/SNES/SNESLineSearchType/ for more information.
Definition at line 120 of file petsc_snes.h.
real_type PETScWrappers::NonlinearSolverData::absolute_tolerance |
Absolute error tolerance for function evaluation.
Definition at line 127 of file petsc_snes.h.
real_type PETScWrappers::NonlinearSolverData::relative_tolerance |
Relative error tolerance for function evaluation.
Definition at line 134 of file petsc_snes.h.
real_type PETScWrappers::NonlinearSolverData::step_tolerance |
Step tolerance for solution update.
Definition at line 141 of file petsc_snes.h.
int PETScWrappers::NonlinearSolverData::maximum_non_linear_iterations |
Maximum number of nonlinear iterations allowed.
Definition at line 148 of file petsc_snes.h.
int PETScWrappers::NonlinearSolverData::max_n_function_evaluations |
Maximum number of function evaluations allowed.
Definition at line 155 of file petsc_snes.h.