libMesh::LaspackLinearSolver< T > Class Template Reference

This class provides an interface to Laspack iterative solvers that is compatible with the libMesh LinearSolver<> More...

#include <laspack_matrix.h>

Inheritance diagram for libMesh::LaspackLinearSolver< T >:

Public Member Functions
	LaspackLinearSolver (const libMesh::Parallel::Communicator &comm)
	Constructor. More...
	~LaspackLinearSolver ()
	Destructor. More...
virtual void	clear () override
	Release all memory and clear data structures. More...
virtual void	init (const char *name=nullptr) override
	Initialize data structures if not done so already. More...
virtual std::pair< unsigned int, Real >	solve (SparseMatrix< T > &matrix, NumericVector< T > &solution, NumericVector< T > &rhs, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt) override
	Call the Laspack solver. More...
virtual std::pair< unsigned int, Real >	adjoint_solve (SparseMatrix< T > &matrix, NumericVector< T > &solution, NumericVector< T > &rhs, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt) override
	Call the Laspack solver to solve A^T x = b. More...
virtual std::pair< unsigned int, Real >	solve (SparseMatrix< T > &matrix, SparseMatrix< T > &pc, NumericVector< T > &solution, NumericVector< T > &rhs, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt) override
	Call the Laspack solver. More...
virtual std::pair< unsigned int, Real >	solve (const ShellMatrix< T > &shell_matrix, NumericVector< T > &solution_in, NumericVector< T > &rhs_in, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt) override
	This function solves a system whose matrix is a shell matrix. More...
virtual std::pair< unsigned int, Real >	solve (const ShellMatrix< T > &shell_matrix, const SparseMatrix< T > &precond_matrix, NumericVector< T > &solution_in, NumericVector< T > &rhs_in, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt) override
	This function solves a system whose matrix is a shell matrix, but a sparse matrix is used as preconditioning matrix, this allowing other preconditioners than JACOBI. More...
virtual void	print_converged_reason () const override
	Prints a useful message about why the latest linear solve con(di)verged. More...
virtual LinearConvergenceReason	get_converged_reason () const override
bool	initialized () const
virtual void	init_names (const System &)
	Apply names to the system to be solved. More...
SolverType	solver_type () const
void	set_solver_type (const SolverType st)
	Sets the type of solver to use. More...
PreconditionerType	preconditioner_type () const
void	set_preconditioner_type (const PreconditionerType pct)
	Sets the type of preconditioner to use. More...
void	attach_preconditioner (Preconditioner< T > *preconditioner)
	Attaches a Preconditioner object to be used. More...
virtual void	reuse_preconditioner (bool)
	Set the same_preconditioner flag, which indicates if we reuse the same preconditioner for subsequent solves. More...
bool	get_same_preconditioner ()
virtual void	restrict_solve_to (const std::vector< unsigned int > *const dofs, const SubsetSolveMode subset_solve_mode=SUBSET_ZERO)
	After calling this method, all successive solves will be restricted to the given set of dofs, which must contain local dofs on each processor only and not contain any duplicates. More...
std::pair< unsigned int, Real >	solve (SparseMatrix< T > &matrix, SparseMatrix< T > *precond_matrix, NumericVector< T > &, NumericVector< T > &, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt)
	This function calls the solver "_solver_type" preconditioned with the "_preconditioner_type" preconditioner. More...
std::pair< unsigned int, Real >	solve (const ShellMatrix< T > &matrix, const SparseMatrix< T > *precond_matrix, NumericVector< T > &, NumericVector< T > &, const std::optional< double > tol=std::nullopt, const std::optional< unsigned int > m_its=std::nullopt)
	This function solves a system whose matrix is a shell matrix, but an optional sparse matrix may be used as preconditioning matrix. More...
void	set_solver_configuration (SolverConfiguration &solver_configuration)
	Set the solver configuration object. More...
const Parallel::Communicator &	comm () const
processor_id_type	n_processors () const
processor_id_type	processor_id () const

Static Public Member Functions
static std::unique_ptr< LinearSolver< T > >	build (const libMesh::Parallel::Communicator &comm_in, const SolverPackage solver_package=libMesh::default_solver_package())
	Builds a LinearSolver using the linear solver package specified by solver_package. More...
static std::string	get_info ()
	Gets a string containing the reference information. More...
static void	print_info (std::ostream &out_stream=libMesh::out)
	Prints the reference information, by default to libMesh::out. More...
static unsigned int	n_objects ()
	Prints the number of outstanding (created, but not yet destroyed) objects. More...
static void	enable_print_counter_info ()
	Methods to enable/disable the reference counter output from print_info() More...
static void	disable_print_counter_info ()

Protected Types
typedef std::map< std::string, std::pair< unsigned int, unsigned int > >	Counts
	Data structure to log the information. More...

Protected Member Functions
double	get_real_solver_setting (const std::string &setting_name, const std::optional< double > &setting, const std::optional< double > default_value=std::nullopt)
	Get solver settings based on optional parameters and the solver configuration object. More...
int	get_int_solver_setting (const std::string &setting_name, const std::optional< int > &setting, const std::optional< int > default_value=std::nullopt)
	Get solver settings based on optional parameters and the solver configuration object. More...
void	increment_constructor_count (const std::string &name) noexcept
	Increments the construction counter. More...
void	increment_destructor_count (const std::string &name) noexcept
	Increments the destruction counter. More...

Protected Attributes
SolverType	_solver_type
	Enum stating which type of iterative solver to use. More...
PreconditionerType	_preconditioner_type
	Enum stating with type of preconditioner to use. More...
bool	_is_initialized
	Flag indicating if the data structures have been initialized. More...
Preconditioner< T > *	_preconditioner
	Holds the Preconditioner object to be used for the linear solves. More...
bool	same_preconditioner
	Boolean flag to indicate whether we want to use an identical preconditioner to the previous solve. More...
SolverConfiguration *	_solver_configuration
	Optionally store a SolverOptions object that can be used to set parameters like solver type, tolerances and iteration limits. More...
const Parallel::Communicator &	_communicator

Static Protected Attributes
static Counts	_counts
	Actually holds the data. More...
static Threads::atomic< unsigned int >	_n_objects
	The number of objects. More...
static Threads::spin_mutex	_mutex
	Mutual exclusion object to enable thread-safe reference counting. More...
static bool	_enable_print_counter = true
	Flag to control whether reference count information is printed when print_info is called. More...

Private Member Functions
void	set_laspack_preconditioner_type ()
	Tells LASPACK to use the user-specified preconditioner stored in _preconditioner_type. More...

Private Attributes
PrecondProcType	_precond_type
	Preconditioner type. More...

Detailed Description

template<typename T>
class libMesh::LaspackLinearSolver< T >

This class provides an interface to Laspack iterative solvers that is compatible with the libMesh LinearSolver<>

Author

Benjamin Kirk

Date

2002-2007

Definition at line 43 of file laspack_matrix.h.

Member Typedef Documentation

Counts

typedef std::map<std::string, std::pair<unsigned int, unsigned int> > libMesh::ReferenceCounter::Counts

protectedinherited

Data structure to log the information.

The log is identified by the class name.

Definition at line 119 of file reference_counter.h.

Constructor & Destructor Documentation

LaspackLinearSolver()

template<typename T >

libMesh::LaspackLinearSolver< T >::LaspackLinearSolver ( const libMesh::Parallel::Communicator &  comm )

inline

Constructor.

Initializes Laspack data structures

Definition at line 156 of file laspack_linear_solver.h.

                                                                                     :
  LinearSolver<T>(comm),
  _precond_type (ILUPrecond)
{
}

~LaspackLinearSolver()

template<typename T >

libMesh::LaspackLinearSolver< T >::~LaspackLinearSolver ( )

inline

Destructor.

Definition at line 166 of file laspack_linear_solver.h.

{
  this->clear ();
}

Member Function Documentation

adjoint_solve()

template<typename T >

std::pair< unsigned int, Real > libMesh::LaspackLinearSolver< T >::adjoint_solve ( SparseMatrix< T > &  matrix, NumericVector< T > &  solution, NumericVector< T > &  rhs, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

overridevirtual

Call the Laspack solver to solve A^T x = b.

Reimplemented from libMesh::LinearSolver< T >.

Definition at line 287 of file laspack_linear_solver.C.

References libMesh::LaspackMatrix< T >::_QMat, libMesh::BICG, libMesh::BICGSTAB, libMesh::CG, libMesh::CGN, libMesh::CGS, libMesh::LaspackMatrix< T >::close(), libMesh::Utility::enum_to_string(), libMesh::err, libMesh::GMRES, libMesh::TriangleWrapper::init(), libMesh::JACOBI, libMesh::QMR, and libMesh::SSOR.

{
  LOG_SCOPE("adjoint_solve()", "LaspackLinearSolver");
  this->init ();

  // Make sure the data passed in are really in Laspack types
  LaspackMatrix<T> * matrix   = cast_ptr<LaspackMatrix<T> *>(&matrix_in);
  LaspackVector<T> * solution = cast_ptr<LaspackVector<T> *>(&solution_in);
  LaspackVector<T> * rhs      = cast_ptr<LaspackVector<T> *>(&rhs_in);

  const int max_its = this->get_int_solver_setting("max_its", m_its);
  const double abs_tol = this->get_real_solver_setting("abs_tol", tol);

  // Zero-out the solution to prevent the solver from exiting in 0
  // iterations (?)
  //TODO:[BSK] Why does Laspack do this?  Comment out this and try ex13...
  solution->zero();

  // Close the matrix and vectors in case this wasn't already done.
  matrix->close ();
  solution->close ();
  rhs->close ();

  // Set the preconditioner type
  this->set_laspack_preconditioner_type ();

  // Set the solver tolerance
  SetRTCAccuracy (abs_tol);

  // Solve the linear system
  switch (this->_solver_type)
    {
      // Conjugate-Gradient
    case CG:
      {
        CGIter (Transp_Q(&matrix->_QMat),
                &solution->_vec,
                &rhs->_vec,
                max_its,
                _precond_type,
                1.);
        break;
      }

      // Conjugate-Gradient Normalized
    case CGN:
      {
        CGNIter (Transp_Q(&matrix->_QMat),
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Conjugate-Gradient Squared
    case CGS:
      {
        CGSIter (Transp_Q(&matrix->_QMat),
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Bi-Conjugate Gradient
    case BICG:
      {
        BiCGIter (Transp_Q(&matrix->_QMat),
                  &solution->_vec,
                  &rhs->_vec,
                  max_its,
                  _precond_type,
                  1.);
        break;
      }

      // Bi-Conjugate Gradient Stabilized
    case BICGSTAB:
      {
        BiCGSTABIter (Transp_Q(&matrix->_QMat),
                      &solution->_vec,
                      &rhs->_vec,
                      max_its,
                      _precond_type,
                      1.);
        break;
      }

      // Quasi-Minimum Residual
    case QMR:
      {
        QMRIter (Transp_Q(&matrix->_QMat),
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Symmetric over-relaxation
    case SSOR:
      {
        SSORIter (Transp_Q(&matrix->_QMat),
                  &solution->_vec,
                  &rhs->_vec,
                  max_its,
                  _precond_type,
                  1.);
        break;
      }

      // Jacobi Relaxation
    case JACOBI:
      {
        JacobiIter (Transp_Q(&matrix->_QMat),
                    &solution->_vec,
                    &rhs->_vec,
                    max_its,
                    _precond_type,
                    1.);
        break;
      }

      // Generalized Minimum Residual
    case GMRES:
      {
        SetGMRESRestart (30);
        GMRESIter (Transp_Q(&matrix->_QMat),
                   &solution->_vec,
                   &rhs->_vec,
                   max_its,
                   _precond_type,
                   1.);
        break;
      }

      // Unknown solver, use GMRES
    default:
      {
        libMesh::err << "ERROR:  Unsupported LASPACK Solver: "
                     << Utility::enum_to_string(this->_solver_type) << std::endl
                     << "Continuing with GMRES" << std::endl;

        this->_solver_type = GMRES;

        return this->solve (*matrix,
                            *solution,
                            *rhs,
                            tol,
                            m_its);
      }
    }

  // Check for an error
  if (LASResult() != LASOK)
    {
      WriteLASErrDescr(stdout);
      libmesh_error_msg("Exiting after LASPACK Error!");
    }

  // Get the convergence step # and residual
  return std::make_pair(GetLastNoIter(), GetLastAccuracy());
}

attach_preconditioner()

template<typename T>

void libMesh::LinearSolver< T >::attach_preconditioner ( Preconditioner< T > *  preconditioner )

inherited

Attaches a Preconditioner object to be used.

Definition at line 120 of file linear_solver.C.

{
  libmesh_error_msg_if(this->_is_initialized,
                       "Preconditioner must be attached before the solver is initialized!");

  _preconditioner_type = SHELL_PRECOND;
  _preconditioner = preconditioner;
}

build()

template<typename T >

std::unique_ptr< LinearSolver< T > > libMesh::LinearSolver< T >::build ( const libMesh::Parallel::Communicator &  comm_in, const SolverPackage  solver_package = libMesh::default_solver_package()  )

staticinherited

Builds a LinearSolver using the linear solver package specified by solver_package.

Definition at line 59 of file linear_solver.C.

Referenced by libMesh::ContinuationSystem::ContinuationSystem(), libMesh::ImplicitSystem::get_linear_solver(), libMesh::TimeSolver::init(), libMesh::LinearImplicitSystem::LinearImplicitSystem(), and libMesh::DofMap::process_mesh_constraint_rows().

{
  // Avoid unused parameter warnings when no solver packages are enabled.
  libmesh_ignore(comm);

  // Build the appropriate solver
  switch (solver_package)
    {
#ifdef LIBMESH_HAVE_LASPACK
    case LASPACK_SOLVERS:
      return std::make_unique<LaspackLinearSolver<T>>(comm);
#endif


#ifdef LIBMESH_HAVE_PETSC
    case PETSC_SOLVERS:
      return std::make_unique<PetscLinearSolver<T>>(comm);
#endif


#ifdef LIBMESH_TRILINOS_HAVE_AZTECOO
    case TRILINOS_SOLVERS:
      return std::make_unique<AztecLinearSolver<T>>(comm);
#endif


#ifdef LIBMESH_HAVE_EIGEN
    case EIGEN_SOLVERS:
      return std::make_unique<EigenSparseLinearSolver<T>>(comm);
#endif

    default:
      libmesh_error_msg("ERROR:  Unrecognized solver package: " << solver_package);
    }

  return std::unique_ptr<LinearSolver<T>>();
}

clear()

template<typename T >

void libMesh::LaspackLinearSolver< T >::clear ( )

overridevirtual

Release all memory and clear data structures.

Reimplemented from libMesh::LinearSolver< T >.

Definition at line 81 of file laspack_linear_solver.C.

References libMesh::libMeshPrivateData::_is_initialized, libMesh::GMRES, libMesh::ILU_PRECOND, and libMesh::initialized().

{
  if (this->initialized())
    {
      this->_is_initialized = false;

      this->_solver_type         = GMRES;
      this->_preconditioner_type = ILU_PRECOND;
    }
}

comm()

const Parallel::Communicator& libMesh::ParallelObject::comm ( ) const

inlineinherited

Returns

A reference to the Parallel::Communicator object used by this mesh.

Definition at line 97 of file parallel_object.h.

References libMesh::ParallelObject::_communicator.

Referenced by libMesh::__libmesh_petsc_diff_solver_jacobian(), libMesh::__libmesh_petsc_diff_solver_monitor(), libMesh::__libmesh_petsc_diff_solver_residual(), libMesh::__libmesh_tao_equality_constraints(), libMesh::__libmesh_tao_equality_constraints_jacobian(), libMesh::__libmesh_tao_gradient(), libMesh::__libmesh_tao_hessian(), libMesh::__libmesh_tao_inequality_constraints(), libMesh::__libmesh_tao_inequality_constraints_jacobian(), libMesh::__libmesh_tao_objective(), libMesh::MeshRefinement::_coarsen_elements(), libMesh::ExactSolution::_compute_error(), libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::Partitioner::_find_global_index_by_pid_map(), libMesh::BoundaryInfo::_find_id_maps(), libMesh::SlepcEigenSolver< libMesh::Number >::_petsc_shell_matrix_get_diagonal(), libMesh::PetscLinearSolver< Number >::_petsc_shell_matrix_get_diagonal(), libMesh::SlepcEigenSolver< libMesh::Number >::_petsc_shell_matrix_mult(), libMesh::PetscLinearSolver< Number >::_petsc_shell_matrix_mult(), libMesh::PetscLinearSolver< Number >::_petsc_shell_matrix_mult_add(), libMesh::MeshRefinement::_refine_elements(), libMesh::MeshRefinement::_smooth_flags(), libMesh::DofMap::add_constraints_to_send_list(), add_cube_convex_hull_to_mesh(), libMesh::PetscDMWrapper::add_dofs_helper(), libMesh::PetscDMWrapper::add_dofs_to_section(), libMesh::TransientRBConstruction::add_IC_to_RB_space(), libMesh::EigenSystem::add_matrices(), libMesh::System::add_matrix(), libMesh::RBConstruction::add_scaled_matrix_and_vector(), libMesh::System::add_variable(), libMesh::System::add_variables(), libMesh::System::add_vector(), libMesh::MeshTools::Modification::all_tri(), libMesh::LaplaceMeshSmoother::allgather_graph(), libMesh::DofMap::allgather_recursive_constraints(), libMesh::TransientRBConstruction::allocate_data_structures(), libMesh::RBConstruction::allocate_data_structures(), libMesh::TransientRBConstruction::assemble_affine_expansion(), libMesh::FEMSystem::assemble_qoi(), libMesh::Nemesis_IO::assert_symmetric_cmaps(), libMesh::MeshCommunication::assign_global_indices(), libMesh::Partitioner::assign_partitioning(), libMesh::MeshTools::Generation::build_extrusion(), libMesh::BoundaryInfo::build_node_list_from_side_list(), libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::PetscDMWrapper::build_section(), libMesh::PetscDMWrapper::build_sf(), libMesh::MeshBase::cache_elem_data(), libMesh::System::calculate_norm(), libMesh::DofMap::check_dirichlet_bcid_consistency(), libMesh::RBConstruction::compute_Fq_representor_innerprods(), libMesh::RBConstruction::compute_max_error_bound(), libMesh::Nemesis_IO_Helper::compute_num_global_elem_blocks(), libMesh::Nemesis_IO_Helper::compute_num_global_nodesets(), libMesh::Nemesis_IO_Helper::compute_num_global_sidesets(), libMesh::RBConstruction::compute_output_dual_innerprods(), libMesh::RBConstruction::compute_residual_dual_norm_slow(), libMesh::RBSCMConstruction::compute_SCM_bounds_on_training_set(), libMesh::DofMap::computed_sparsity_already(), libMesh::Problem_Interface::computeF(), libMesh::Problem_Interface::computeJacobian(), libMesh::Problem_Interface::computePreconditioner(), libMesh::ContinuationSystem::ContinuationSystem(), libMesh::MeshBase::copy_constraint_rows(), libMesh::ExodusII_IO::copy_elemental_solution(), libMesh::ExodusII_IO::copy_nodal_solution(), libMesh::ExodusII_IO::copy_scalar_solution(), libMesh::MeshTools::correct_node_proc_ids(), libMesh::MeshTools::create_bounding_box(), libMesh::DofMap::create_dof_constraints(), libMesh::MeshTools::create_nodal_bounding_box(), libMesh::MeshRefinement::create_parent_error_vector(), libMesh::MeshTools::create_processor_bounding_box(), libMesh::MeshTools::create_subdomain_bounding_box(), libMesh::PetscMatrix< libMesh::Number >::create_submatrix_nosort(), libMesh::MeshCommunication::delete_remote_elements(), libMesh::RBEIMEvaluation::distribute_bfs(), libMesh::DofMap::distribute_dofs(), DMlibMeshFunction(), DMlibMeshJacobian(), DMlibMeshSetSystem_libMesh(), DMVariableBounds_libMesh(), libMesh::DTKSolutionTransfer::DTKSolutionTransfer(), libMesh::MeshRefinement::eliminate_unrefined_patches(), libMesh::RBEIMConstruction::enrich_eim_approximation_on_interiors(), libMesh::RBEIMConstruction::enrich_eim_approximation_on_nodes(), libMesh::RBEIMConstruction::enrich_eim_approximation_on_sides(), libMesh::TransientRBConstruction::enrich_RB_space(), libMesh::EpetraVector< T >::EpetraVector(), AssembleOptimization::equality_constraints(), libMesh::PatchRecoveryErrorEstimator::estimate_error(), libMesh::WeightedPatchRecoveryErrorEstimator::estimate_error(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::ExactErrorEstimator::estimate_error(), libMesh::MeshRefinement::flag_elements_by_elem_fraction(), libMesh::MeshRefinement::flag_elements_by_error_fraction(), libMesh::MeshRefinement::flag_elements_by_error_tolerance(), libMesh::MeshRefinement::flag_elements_by_mean_stddev(), libMesh::MeshRefinement::flag_elements_by_nelem_target(), libMesh::RBEIMEvaluation::gather_bfs(), libMesh::DofMap::gather_constraints(), libMesh::MeshfreeInterpolation::gather_remote_data(), libMesh::CondensedEigenSystem::get_eigenpair(), libMesh::RBEIMEvaluation::get_eim_basis_function_node_value(), libMesh::RBEIMEvaluation::get_eim_basis_function_side_value(), libMesh::RBEIMEvaluation::get_eim_basis_function_value(), libMesh::MeshBase::get_info(), libMesh::System::get_info(), libMesh::DofMap::get_info(), libMesh::ImplicitSystem::get_linear_solver(), libMesh::RBEIMConstruction::get_max_abs_value(), libMesh::RBEIMConstruction::get_node_max_abs_value(), libMesh::RBEIMEvaluation::get_parametrized_function_node_value(), libMesh::RBEIMEvaluation::get_parametrized_function_side_value(), libMesh::RBEIMEvaluation::get_parametrized_function_value(), libMesh::RBEIMConstruction::get_random_point(), AssembleOptimization::inequality_constraints(), AssembleOptimization::inequality_constraints_jacobian(), libMesh::LocationMap< T >::init(), libMesh::TimeSolver::init(), libMesh::SystemSubsetBySubdomain::init(), libMesh::PetscDMWrapper::init_and_attach_petscdm(), libMesh::ExodusII_IO_Helper::initialize(), libMesh::OptimizationSystem::initialize_equality_constraints_storage(), libMesh::OptimizationSystem::initialize_inequality_constraints_storage(), libMesh::RBEIMConstruction::initialize_parametrized_functions_in_training_set(), libMesh::RBEIMConstruction::inner_product(), integrate_function(), libMesh::MeshTools::libmesh_assert_consistent_distributed(), libMesh::MeshTools::libmesh_assert_consistent_distributed_nodes(), libMesh::MeshTools::libmesh_assert_contiguous_dof_ids(), libMesh::MeshTools::libmesh_assert_equal_connectivity(), libMesh::MeshTools::libmesh_assert_equal_points(), libMesh::MeshTools::libmesh_assert_parallel_consistent_new_node_procids(), libMesh::MeshTools::libmesh_assert_parallel_consistent_procids< Elem >(), libMesh::MeshTools::libmesh_assert_parallel_consistent_procids< Node >(), libMesh::MeshTools::libmesh_assert_topology_consistent_procids< Node >(), libMesh::MeshTools::libmesh_assert_valid_boundary_ids(), libMesh::MeshTools::libmesh_assert_valid_dof_ids(), libMesh::MeshTools::libmesh_assert_valid_neighbors(), libMesh::DistributedMesh::libmesh_assert_valid_parallel_flags(), libMesh::DistributedMesh::libmesh_assert_valid_parallel_object_ids(), libMesh::DistributedMesh::libmesh_assert_valid_parallel_p_levels(), libMesh::MeshTools::libmesh_assert_valid_refinement_flags(), libMesh::MeshTools::libmesh_assert_valid_unique_ids(), libMesh::libmesh_petsc_linesearch_shellfunc(), libMesh::libmesh_petsc_preconditioner_apply(), libMesh::libmesh_petsc_recalculate_monitor(), libMesh::libmesh_petsc_snes_fd_residual(), libMesh::libmesh_petsc_snes_jacobian(), libMesh::libmesh_petsc_snes_mffd_interface(), libMesh::libmesh_petsc_snes_mffd_residual(), libMesh::libmesh_petsc_snes_postcheck(), libMesh::libmesh_petsc_snes_precheck(), libMesh::libmesh_petsc_snes_residual(), libMesh::libmesh_petsc_snes_residual_helper(), libMesh::MeshRefinement::limit_level_mismatch_at_edge(), libMesh::MeshRefinement::limit_level_mismatch_at_node(), libMesh::MeshRefinement::limit_overrefined_boundary(), libMesh::MeshRefinement::limit_underrefined_boundary(), libMesh::LinearImplicitSystem::LinearImplicitSystem(), main(), libMesh::MeshRefinement::make_coarsening_compatible(), libMesh::MeshCommunication::make_elems_parallel_consistent(), libMesh::MeshRefinement::make_flags_parallel_consistent(), libMesh::MeshCommunication::make_new_node_proc_ids_parallel_consistent(), libMesh::MeshCommunication::make_new_nodes_parallel_consistent(), libMesh::MeshCommunication::make_node_bcids_parallel_consistent(), libMesh::MeshCommunication::make_node_ids_parallel_consistent(), libMesh::MeshCommunication::make_node_proc_ids_parallel_consistent(), libMesh::MeshCommunication::make_node_unique_ids_parallel_consistent(), libMesh::MeshCommunication::make_nodes_parallel_consistent(), libMesh::MeshCommunication::make_p_levels_parallel_consistent(), libMesh::MeshRefinement::make_refinement_compatible(), libMesh::TransientRBConstruction::mass_matrix_scaled_matvec(), libMesh::FEMSystem::mesh_position_set(), libMesh::TriangulatorInterface::MeshedHole::MeshedHole(), LinearElasticityWithContact::move_mesh(), libMesh::DistributedMesh::n_active_elem(), libMesh::MeshTools::n_active_levels(), libMesh::BoundaryInfo::n_boundary_conds(), libMesh::DofMap::n_constrained_dofs(), libMesh::BoundaryInfo::n_edge_conds(), libMesh::CondensedEigenSystem::n_global_non_condensed_dofs(), libMesh::MeshTools::n_levels(), MixedOrderTest::n_neighbor_links(), libMesh::BoundaryInfo::n_nodeset_conds(), libMesh::SparsityPattern::Build::n_nonzeros(), libMesh::MeshTools::n_p_levels(), libMesh::BoundaryInfo::n_shellface_conds(), libMesh::RBEIMEvaluation::node_distribute_bfs(), libMesh::RBEIMEvaluation::node_gather_bfs(), libMesh::RBEIMConstruction::node_inner_product(), libMesh::MeshBase::operator==(), libMesh::DistributedMesh::parallel_max_elem_id(), libMesh::DistributedMesh::parallel_max_node_id(), libMesh::ReplicatedMesh::parallel_max_unique_id(), libMesh::DistributedMesh::parallel_max_unique_id(), libMesh::DistributedMesh::parallel_n_elem(), libMesh::DistributedMesh::parallel_n_nodes(), libMesh::SparsityPattern::Build::parallel_sync(), libMesh::BoundaryInfo::parallel_sync_node_ids(), libMesh::BoundaryInfo::parallel_sync_side_ids(), libMesh::MeshTools::paranoid_n_levels(), libMesh::Partitioner::partition(), libMesh::Partitioner::partition_unpartitioned_elements(), libMesh::petsc_auto_fieldsplit(), libMesh::System::point_gradient(), libMesh::System::point_hessian(), libMesh::System::point_value(), libMesh::MeshBase::prepare_for_use(), libMesh::DofMap::print_dof_constraints(), libMesh::DofMap::process_mesh_constraint_rows(), libMesh::Partitioner::processor_pairs_to_interface_nodes(), libMesh::InterMeshProjection::project_system_vectors(), FEMParameters::read(), libMesh::Nemesis_IO::read(), libMesh::XdrIO::read(), libMesh::EquationSystems::read(), libMesh::ExodusII_IO::read_header(), libMesh::CheckpointIO::read_header(), libMesh::XdrIO::read_header(), libMesh::System::read_header(), libMesh::RBEIMEvaluation::read_in_interior_basis_functions(), libMesh::RBEIMEvaluation::read_in_node_basis_functions(), libMesh::RBEIMEvaluation::read_in_side_basis_functions(), libMesh::RBEvaluation::read_in_vectors_from_multiple_files(), libMesh::System::read_legacy_data(), libMesh::TransientRBConstruction::read_riesz_representors_from_files(), libMesh::RBConstruction::read_riesz_representors_from_files(), libMesh::System::read_SCALAR_dofs(), libMesh::XdrIO::read_serialized_bc_names(), libMesh::XdrIO::read_serialized_bcs_helper(), libMesh::System::read_serialized_blocked_dof_objects(), libMesh::XdrIO::read_serialized_connectivity(), libMesh::XdrIO::read_serialized_nodes(), libMesh::XdrIO::read_serialized_nodesets(), libMesh::XdrIO::read_serialized_subdomain_names(), libMesh::System::read_serialized_vector(), libMesh::Nemesis_IO_Helper::read_var_names_impl(), libMesh::MeshBase::recalculate_n_partitions(), libMesh::MeshRefinement::refine_and_coarsen_elements(), libMesh::DistributedMesh::renumber_dof_objects(), libMesh::DistributedMesh::renumber_nodes_and_elements(), LinearElasticityWithContact::residual_and_jacobian(), OverlappingAlgebraicGhostingTest::run_ghosting_test(), OverlappingCouplingGhostingTest::run_sparsity_pattern_test(), scale_mesh_and_plot(), libMesh::DofMap::scatter_constraints(), libMesh::CheckpointIO::select_split_config(), libMesh::GenericProjector< FFunctor, GFunctor, FValue, ProjectionAction >::send_and_insert_dof_values(), libMesh::TransientRBConstruction::set_error_temporal_data(), libMesh::Partitioner::set_interface_node_processor_ids_BFS(), libMesh::Partitioner::set_interface_node_processor_ids_linear(), libMesh::Partitioner::set_interface_node_processor_ids_petscpartitioner(), libMesh::Partitioner::set_node_processor_ids(), libMesh::DofMap::set_nonlocal_dof_objects(), libMesh::Partitioner::set_parent_processor_ids(), libMesh::PetscDMWrapper::set_point_range_in_section(), libMesh::PetscDiffSolver::setup_petsc_data(), libMesh::RBEIMEvaluation::side_distribute_bfs(), libMesh::RBEIMEvaluation::side_gather_bfs(), libMesh::RBEIMConstruction::side_inner_product(), libMesh::Partitioner::single_partition(), libMesh::LaplaceMeshSmoother::smooth(), libMesh::split_mesh(), libMesh::RBEIMConstruction::store_eim_solutions_for_training_set(), libMesh::MeshBase::subdomain_ids(), libMesh::BoundaryInfo::sync(), ConstraintOperatorTest::test1DCoarseningNewNodes(), ConstraintOperatorTest::test1DCoarseningOperator(), libMesh::MeshRefinement::test_level_one(), MeshfunctionDFEM::test_mesh_function_dfem(), MeshfunctionDFEM::test_mesh_function_dfem_grad(), MeshFunctionTest::test_p_level(), libMesh::MeshRefinement::test_unflagged(), DofMapTest::testBadElemFECombo(), SystemsTest::testBlockRestrictedVarNDofs(), BoundaryInfoTest::testBoundaryOnChildrenErrors(), ConstraintOperatorTest::testCoreform(), MeshInputTest::testExodusIGASidesets(), MeshTriangulationTest::testFoundCenters(), PointLocatorTest::testLocator(), BoundaryInfoTest::testMesh(), PointLocatorTest::testPlanar(), MeshTriangulationTest::testPoly2TriRefinementBase(), SystemsTest::testProjectCubeWithMeshFunction(), BoundaryInfoTest::testRenumber(), CheckpointIOTest::testSplitter(), MeshInputTest::testTetgenIO(), MeshTriangulationTest::testTriangulatorInterp(), MeshTriangulationTest::testTriangulatorMeshedHoles(), MeshTriangulationTest::testTriangulatorRoundHole(), libMesh::MeshTools::total_weight(), libMesh::RBConstruction::train_reduced_basis_with_POD(), libMesh::MeshFunctionSolutionTransfer::transfer(), libMesh::MeshfreeSolutionTransfer::transfer(), libMesh::Poly2TriTriangulator::triangulate(), libMesh::TransientRBConstruction::truth_assembly(), libMesh::RBConstruction::truth_assembly(), libMesh::MeshRefinement::uniformly_coarsen(), libMesh::TransientRBConstruction::update_RB_initial_condition_all_N(), libMesh::TransientRBConstruction::update_RB_system_matrices(), libMesh::RBConstruction::update_RB_system_matrices(), libMesh::TransientRBConstruction::update_residual_terms(), libMesh::RBConstruction::update_residual_terms(), libMesh::NameBasedIO::write(), libMesh::XdrIO::write(), libMesh::VTKIO::write_nodal_data(), libMesh::RBEIMEvaluation::write_out_interior_basis_functions(), libMesh::RBEIMEvaluation::write_out_node_basis_functions(), libMesh::RBEIMEvaluation::write_out_side_basis_functions(), libMesh::RBEvaluation::write_out_vectors(), libMesh::TransientRBConstruction::write_riesz_representors_to_files(), libMesh::RBConstruction::write_riesz_representors_to_files(), libMesh::System::write_SCALAR_dofs(), libMesh::XdrIO::write_serialized_bcs_helper(), libMesh::System::write_serialized_blocked_dof_objects(), libMesh::XdrIO::write_serialized_connectivity(), libMesh::XdrIO::write_serialized_nodes(), libMesh::XdrIO::write_serialized_nodesets(), libMesh::RBDataSerialization::RBEvaluationSerialization::write_to_file(), libMesh::RBDataSerialization::TransientRBEvaluationSerialization::write_to_file(), libMesh::RBDataSerialization::RBEIMEvaluationSerialization::write_to_file(), and libMesh::RBDataSerialization::RBSCMEvaluationSerialization::write_to_file().

  { return _communicator; }

disable_print_counter_info()

void libMesh::ReferenceCounter::disable_print_counter_info ( )

staticinherited

Definition at line 100 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

{
  _enable_print_counter = false;
  return;
}

enable_print_counter_info()

void libMesh::ReferenceCounter::enable_print_counter_info ( )

staticinherited

Methods to enable/disable the reference counter output from print_info()

Definition at line 94 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

{
  _enable_print_counter = true;
  return;
}

get_converged_reason()

template<typename T >

LinearConvergenceReason libMesh::LaspackLinearSolver< T >::get_converged_reason ( ) const

overridevirtual

Returns

The solver's convergence flag.

Implements libMesh::LinearSolver< T >.

Definition at line 539 of file laspack_linear_solver.C.

References libMesh::CONVERGED_RTOL_NORMAL, and libMesh::DIVERGED_NULL.

{
  switch (LASResult())
    {
    case LASOK : return CONVERGED_RTOL_NORMAL;
    default    : return DIVERGED_NULL;
    }
}

get_info()

std::string libMesh::ReferenceCounter::get_info ( )

staticinherited

Gets a string containing the reference information.

Definition at line 47 of file reference_counter.C.

References libMesh::ReferenceCounter::_counts, and libMesh::Quality::name().

Referenced by libMesh::ReferenceCounter::print_info().

{
#if defined(LIBMESH_ENABLE_REFERENCE_COUNTING) && defined(DEBUG)

  std::ostringstream oss;

  oss << '\n'
      << " ---------------------------------------------------------------------------- \n"
      << "| Reference count information                                                |\n"
      << " ---------------------------------------------------------------------------- \n";

  for (const auto & [name, cd] : _counts)
    oss << "| " << name << " reference count information:\n"
        << "|  Creations:    " << cd.first    << '\n'
        << "|  Destructions: " << cd.second << '\n';

  oss << " ---------------------------------------------------------------------------- \n";

  return oss.str();

#else

  return "";

#endif
}

get_int_solver_setting()

template<typename T >

int libMesh::LinearSolver< T >::get_int_solver_setting ( const std::string &  setting_name, const std::optional< int > &  setting, const std::optional< int >  default_value = std::nullopt  )

protectedinherited

Get solver settings based on optional parameters and the solver configuration object.

Definition at line 207 of file linear_solver.C.

{
  if (setting.has_value())
    return setting.value();
  else if (_solver_configuration)
  {
    auto it = this->_solver_configuration->int_valued_data.find(setting_name);

    if (it != this->_solver_configuration->int_valued_data.end())
      return it->second;
  }
  else if (default_value.has_value())
    return default_value.value();
  else
    libmesh_error_msg("Iteration configuration parameter to the linear solver should either be supplied through input arguments or a SolverConfiguration object!");

  return 0.0;

}

get_real_solver_setting()

template<typename T >

double libMesh::LinearSolver< T >::get_real_solver_setting ( const std::string &  setting_name, const std::optional< double > &  setting, const std::optional< double >  default_value = std::nullopt  )

protectedinherited

Get solver settings based on optional parameters and the solver configuration object.

Definition at line 185 of file linear_solver.C.

{
  if (setting.has_value())
    return setting.value();
  else if (_solver_configuration)
  {
    auto it = this->_solver_configuration->real_valued_data.find(setting_name);

    if (it != this->_solver_configuration->real_valued_data.end())
      return it->second;
  }
  else if (default_value.has_value())
    return default_value.value();
  else
    libmesh_error_msg("Iteration configuration parameter to the linear solver should either be supplied through input arguments or a SolverConfiguration object!");

  return 0.0;
}

get_same_preconditioner()

template<typename T >

bool libMesh::LinearSolver< T >::get_same_preconditioner ( )

inlineinherited

Returns

same_preconditioner, which indicates if we reuse the same preconditioner for subsequent solves.

Definition at line 327 of file linear_solver.h.

{
  return same_preconditioner;
}

increment_constructor_count()

void libMesh::ReferenceCounter::increment_constructor_count ( const std::string &  name )

inlineprotectednoexceptinherited

Increments the construction counter.

Should be called in the constructor of any derived class that will be reference counted.

Definition at line 183 of file reference_counter.h.

References libMesh::err, libMesh::BasicOStreamProxy< charT, traits >::get(), libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::ReferenceCountedObject().

{
  libmesh_try
  {
    Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
    std::pair<unsigned int, unsigned int> & p = _counts[name];
    p.first++;
  }
  libmesh_catch (...)
  {
    auto stream = libMesh::err.get();
    stream->exceptions(stream->goodbit); // stream must not throw
    libMesh::err << "Encountered unrecoverable error while calling "
                 << "ReferenceCounter::increment_constructor_count() "
                 << "for a(n) " << name << " object." << std::endl;
    std::terminate();
  }
}

increment_destructor_count()

void libMesh::ReferenceCounter::increment_destructor_count ( const std::string &  name )

inlineprotectednoexceptinherited

Increments the destruction counter.

Should be called in the destructor of any derived class that will be reference counted.

Definition at line 207 of file reference_counter.h.

References libMesh::err, libMesh::BasicOStreamProxy< charT, traits >::get(), libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::~ReferenceCountedObject().

{
  libmesh_try
  {
    Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
    std::pair<unsigned int, unsigned int> & p = _counts[name];
    p.second++;
  }
  libmesh_catch (...)
  {
    auto stream = libMesh::err.get();
    stream->exceptions(stream->goodbit); // stream must not throw
    libMesh::err << "Encountered unrecoverable error while calling "
                 << "ReferenceCounter::increment_destructor_count() "
                 << "for a(n) " << name << " object." << std::endl;
    std::terminate();
  }
}

init()

template<typename T >

void libMesh::LaspackLinearSolver< T >::init ( const char *  name = nullptr )

overridevirtual

Initialize data structures if not done so already.

Implements libMesh::LinearSolver< T >.

Definition at line 95 of file laspack_linear_solver.C.

References libMesh::libMeshPrivateData::_is_initialized, and libMesh::initialized().

{
  // Initialize the data structures if not done so already.
  if (!this->initialized())
    {
      this->_is_initialized = true;
    }

  // SetRTCAuxProc (print_iter_accuracy);
}

init_names()

template<typename T>

virtual void libMesh::LinearSolver< T >::init_names ( const System &  )

inlinevirtualinherited

Apply names to the system to be solved.

For most packages this is a no-op; for PETSc this sets an option prefix from the system name and sets field names from the system's variable names.

Since field names are applied to DoF numberings, this method must be called again after any System reinit.

Reimplemented in libMesh::PetscLinearSolver< T >, and libMesh::PetscLinearSolver< Number >.

Definition at line 106 of file linear_solver.h.

{}

initialized()

template<typename T>

bool libMesh::LinearSolver< T >::initialized ( ) const

inlineinherited

Returns

true if the data structures are initialized, false otherwise.

Definition at line 85 of file linear_solver.h.

{ return _is_initialized; }

n_objects()

static unsigned int libMesh::ReferenceCounter::n_objects ( )

inlinestaticinherited

Prints the number of outstanding (created, but not yet destroyed) objects.

Definition at line 85 of file reference_counter.h.

References libMesh::ReferenceCounter::_n_objects.

Referenced by libMesh::LibMeshInit::~LibMeshInit().

  { return _n_objects; }

n_processors()

processor_id_type libMesh::ParallelObject::n_processors ( ) const

inlineinherited

Returns

The number of processors in the group.

Definition at line 103 of file parallel_object.h.

References libMesh::ParallelObject::_communicator, libMesh::libmesh_assert(), and TIMPI::Communicator::size().

Referenced by libMesh::Partitioner::_find_global_index_by_pid_map(), libMesh::BoundaryInfo::_find_id_maps(), libMesh::DofMap::add_constraints_to_send_list(), libMesh::PetscDMWrapper::add_dofs_to_section(), libMesh::DistributedMesh::add_elem(), libMesh::DofMap::add_neighbors_to_send_list(), libMesh::DistributedMesh::add_node(), libMesh::System::add_vector(), libMesh::LaplaceMeshSmoother::allgather_graph(), libMesh::DofMap::allgather_recursive_constraints(), libMesh::FEMSystem::assembly(), libMesh::Nemesis_IO::assert_symmetric_cmaps(), libMesh::Partitioner::assign_partitioning(), libMesh::AztecLinearSolver< T >::AztecLinearSolver(), libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::DistributedMesh::clear(), libMesh::DistributedMesh::clear_elems(), libMesh::Nemesis_IO_Helper::compute_border_node_ids(), libMesh::Nemesis_IO_Helper::construct_nemesis_filename(), libMesh::ExodusII_IO::copy_scalar_solution(), libMesh::Nemesis_IO::copy_scalar_solution(), libMesh::UnstructuredMesh::create_pid_mesh(), libMesh::MeshTools::create_processor_bounding_box(), libMesh::DofMap::distribute_dofs(), libMesh::DofMap::distribute_scalar_dofs(), libMesh::DistributedMesh::DistributedMesh(), libMesh::EnsightIO::EnsightIO(), libMesh::RBEIMEvaluation::gather_bfs(), libMesh::MeshBase::get_info(), libMesh::SystemSubsetBySubdomain::init(), libMesh::PetscDMWrapper::init_and_attach_petscdm(), libMesh::Nemesis_IO_Helper::initialize(), libMesh::ExodusII_IO_Helper::initialize(), libMesh::DistributedMesh::insert_elem(), libMesh::MeshTools::libmesh_assert_contiguous_dof_ids(), libMesh::MeshTools::libmesh_assert_parallel_consistent_new_node_procids(), libMesh::MeshTools::libmesh_assert_parallel_consistent_procids< Elem >(), libMesh::MeshTools::libmesh_assert_parallel_consistent_procids< Node >(), libMesh::MeshTools::libmesh_assert_topology_consistent_procids< Node >(), libMesh::MeshTools::libmesh_assert_valid_boundary_ids(), libMesh::MeshTools::libmesh_assert_valid_dof_ids(), libMesh::MeshTools::libmesh_assert_valid_neighbors(), libMesh::MeshTools::libmesh_assert_valid_refinement_flags(), libMesh::DofMap::local_variable_indices(), libMesh::MeshRefinement::make_coarsening_compatible(), libMesh::MeshBase::n_active_elem_on_proc(), libMesh::MeshBase::n_elem_on_proc(), libMesh::MeshBase::n_nodes_on_proc(), libMesh::RBEIMEvaluation::node_gather_bfs(), libMesh::Partitioner::partition(), libMesh::MeshBase::partition(), libMesh::Partitioner::partition_unpartitioned_elements(), libMesh::System::point_gradient(), libMesh::System::point_hessian(), libMesh::System::point_value(), libMesh::DofMap::prepare_send_list(), libMesh::DofMap::print_dof_constraints(), libMesh::NameBasedIO::read(), libMesh::Nemesis_IO::read(), libMesh::CheckpointIO::read(), libMesh::CheckpointIO::read_connectivity(), libMesh::XdrIO::read_header(), libMesh::CheckpointIO::read_nodes(), libMesh::System::read_parallel_data(), libMesh::System::read_SCALAR_dofs(), libMesh::System::read_serialized_blocked_dof_objects(), libMesh::System::read_serialized_vector(), libMesh::DistributedMesh::renumber_dof_objects(), libMesh::Partitioner::repartition(), OverlappingFunctorTest::run_partitioner_test(), libMesh::DofMap::scatter_constraints(), libMesh::DistributedMesh::set_next_unique_id(), libMesh::DofMap::set_nonlocal_dof_objects(), libMesh::PetscDMWrapper::set_point_range_in_section(), WriteVecAndScalar::setupTests(), libMesh::RBEIMEvaluation::side_gather_bfs(), DistributedMeshTest::testRemoteElemError(), CheckpointIOTest::testSplitter(), libMesh::MeshRefinement::uniformly_coarsen(), libMesh::DistributedMesh::update_parallel_id_counts(), libMesh::GMVIO::write_binary(), libMesh::GMVIO::write_discontinuous_gmv(), libMesh::ExodusII_IO_Helper::write_nodal_coordinates(), libMesh::VTKIO::write_nodal_data(), libMesh::ExodusII_IO::write_nodal_data(), libMesh::System::write_parallel_data(), libMesh::System::write_SCALAR_dofs(), libMesh::XdrIO::write_serialized_bcs_helper(), libMesh::System::write_serialized_blocked_dof_objects(), libMesh::XdrIO::write_serialized_connectivity(), libMesh::XdrIO::write_serialized_nodes(), and libMesh::XdrIO::write_serialized_nodesets().

  {
    processor_id_type returnval =
      cast_int<processor_id_type>(_communicator.size());
    libmesh_assert(returnval); // We never have an empty comm
    return returnval;
  }

preconditioner_type()

template<typename T >

PreconditionerType libMesh::LinearSolver< T >::preconditioner_type ( ) const

inherited

Returns

The type of preconditioner to use.

Definition at line 100 of file linear_solver.C.

{
  if (_preconditioner)
    return _preconditioner->type();

  return _preconditioner_type;
}

print_converged_reason()

template<typename T >

void libMesh::LaspackLinearSolver< T >::print_converged_reason ( ) const

overridevirtual

Prints a useful message about why the latest linear solve con(di)verged.

Reimplemented from libMesh::LinearSolver< T >.

Definition at line 522 of file laspack_linear_solver.C.

References libMesh::out.

{
  switch (LASResult())
    {
    case LASOK :
      libMesh::out << "Laspack converged.\n";
      break;
    default    :
      libMesh::out << "Laspack diverged.\n";
    }
  libMesh::out << "Detailed reporting is currently only supported"
               << "with Petsc 2.3.1 and later." << std::endl;
}

print_info()

void libMesh::ReferenceCounter::print_info ( std::ostream &  out_stream = libMesh::out )

staticinherited

Prints the reference information, by default to libMesh::out.

Definition at line 81 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter, and libMesh::ReferenceCounter::get_info().

Referenced by libMesh::LibMeshInit::~LibMeshInit().

{
  if (_enable_print_counter)
    out_stream << ReferenceCounter::get_info();
}

processor_id()

processor_id_type libMesh::ParallelObject::processor_id ( ) const

inlineinherited

Returns

The rank of this processor in the group.

Definition at line 114 of file parallel_object.h.

References libMesh::ParallelObject::_communicator, and TIMPI::Communicator::rank().

Referenced by libMesh::BoundaryInfo::_find_id_maps(), libMesh::PetscDMWrapper::add_dofs_to_section(), libMesh::DistributedMesh::add_elem(), libMesh::BoundaryInfo::add_elements(), libMesh::DofMap::add_neighbors_to_send_list(), libMesh::DistributedMesh::add_node(), libMesh::MeshTools::Modification::all_tri(), libMesh::DofMap::allgather_recursive_constraints(), libMesh::FEMSystem::assembly(), libMesh::Nemesis_IO::assert_symmetric_cmaps(), libMesh::Partitioner::assign_partitioning(), libMesh::Nemesis_IO_Helper::build_element_and_node_maps(), libMesh::Partitioner::build_graph(), libMesh::InfElemBuilder::build_inf_elem(), libMesh::BoundaryInfo::build_node_list_from_side_list(), libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::DistributedMesh::clear(), libMesh::DistributedMesh::clear_elems(), libMesh::ExodusII_IO_Helper::close(), libMesh::Nemesis_IO_Helper::compute_border_node_ids(), libMesh::Nemesis_IO_Helper::compute_communication_map_parameters(), libMesh::Nemesis_IO_Helper::compute_internal_and_border_elems_and_internal_nodes(), libMesh::RBConstruction::compute_max_error_bound(), libMesh::Nemesis_IO_Helper::compute_node_communication_maps(), libMesh::Nemesis_IO_Helper::compute_num_global_elem_blocks(), libMesh::Nemesis_IO_Helper::compute_num_global_nodesets(), libMesh::Nemesis_IO_Helper::compute_num_global_sidesets(), libMesh::Nemesis_IO_Helper::construct_nemesis_filename(), libMesh::ExodusII_IO::copy_elemental_solution(), libMesh::ExodusII_IO::copy_nodal_solution(), libMesh::ExodusII_IO::copy_scalar_solution(), libMesh::Nemesis_IO::copy_scalar_solution(), libMesh::MeshTools::correct_node_proc_ids(), libMesh::ExodusII_IO_Helper::create(), libMesh::DistributedMesh::delete_elem(), libMesh::MeshCommunication::delete_remote_elements(), libMesh::DofMap::distribute_dofs(), libMesh::DofMap::distribute_local_dofs_node_major(), libMesh::DofMap::distribute_local_dofs_var_major(), libMesh::DofMap::distribute_scalar_dofs(), libMesh::DistributedMesh::DistributedMesh(), libMesh::DofMap::end_dof(), libMesh::DofMap::end_old_dof(), libMesh::EnsightIO::EnsightIO(), libMesh::GenericProjector< FFunctor, GFunctor, FValue, ProjectionAction >::SubFunctor::find_dofs_to_send(), libMesh::MeshFunction::find_element(), libMesh::MeshFunction::find_elements(), libMesh::UnstructuredMesh::find_neighbors(), libMesh::DofMap::first_dof(), libMesh::DofMap::first_old_dof(), libMesh::RBEIMEvaluation::gather_bfs(), libMesh::Nemesis_IO_Helper::get_cmap_params(), libMesh::Nemesis_IO_Helper::get_eb_info_global(), libMesh::Nemesis_IO_Helper::get_elem_cmap(), libMesh::Nemesis_IO_Helper::get_elem_map(), libMesh::MeshBase::get_info(), libMesh::DofMap::get_info(), libMesh::Nemesis_IO_Helper::get_init_global(), libMesh::Nemesis_IO_Helper::get_init_info(), libMesh::Nemesis_IO_Helper::get_loadbal_param(), libMesh::DofMap::get_local_constraints(), libMesh::Nemesis_IO_Helper::get_node_cmap(), libMesh::Nemesis_IO_Helper::get_node_map(), libMesh::Nemesis_IO_Helper::get_ns_param_global(), libMesh::Nemesis_IO_Helper::get_ss_param_global(), libMesh::SparsityPattern::Build::handle_vi_vj(), libMesh::LaplaceMeshSmoother::init(), libMesh::SystemSubsetBySubdomain::init(), libMesh::PetscDMWrapper::init_and_attach_petscdm(), HeatSystem::init_data(), libMesh::ExodusII_IO_Helper::initialize(), libMesh::ExodusII_IO_Helper::initialize_element_variables(), libMesh::ExodusII_IO_Helper::initialize_global_variables(), libMesh::ExodusII_IO_Helper::initialize_nodal_variables(), libMesh::DistributedMesh::insert_elem(), libMesh::DofMap::is_evaluable(), libMesh::SparsityPattern::Build::join(), libMesh::TransientRBEvaluation::legacy_write_offline_data_to_files(), libMesh::RBSCMEvaluation::legacy_write_offline_data_to_files(), libMesh::RBEvaluation::legacy_write_offline_data_to_files(), libMesh::MeshTools::libmesh_assert_consistent_distributed(), libMesh::MeshTools::libmesh_assert_consistent_distributed_nodes(), libMesh::MeshTools::libmesh_assert_contiguous_dof_ids(), libMesh::MeshTools::libmesh_assert_parallel_consistent_procids< Elem >(), libMesh::MeshTools::libmesh_assert_valid_neighbors(), libMesh::DistributedMesh::libmesh_assert_valid_parallel_object_ids(), libMesh::DofMap::local_variable_indices(), main(), libMesh::MeshRefinement::make_coarsening_compatible(), AugmentSparsityOnInterface::mesh_reinit(), libMesh::TriangulatorInterface::MeshedHole::MeshedHole(), libMesh::MeshBase::n_active_local_elem(), libMesh::BoundaryInfo::n_boundary_conds(), libMesh::BoundaryInfo::n_edge_conds(), libMesh::DofMap::n_local_dofs(), libMesh::System::n_local_dofs(), libMesh::MeshBase::n_local_elem(), libMesh::MeshBase::n_local_nodes(), libMesh::BoundaryInfo::n_nodeset_conds(), libMesh::BoundaryInfo::n_shellface_conds(), libMesh::RBEIMEvaluation::node_gather_bfs(), libMesh::SparsityPattern::Build::operator()(), libMesh::DistributedMesh::own_node(), libMesh::BoundaryInfo::parallel_sync_node_ids(), libMesh::BoundaryInfo::parallel_sync_side_ids(), libMesh::System::point_gradient(), libMesh::System::point_hessian(), libMesh::System::point_value(), libMesh::DofMap::print_dof_constraints(), libMesh::DofMap::process_mesh_constraint_rows(), libMesh::Nemesis_IO_Helper::put_cmap_params(), libMesh::Nemesis_IO_Helper::put_elem_cmap(), libMesh::Nemesis_IO_Helper::put_elem_map(), libMesh::Nemesis_IO_Helper::put_loadbal_param(), libMesh::Nemesis_IO_Helper::put_node_cmap(), libMesh::Nemesis_IO_Helper::put_node_map(), libMesh::NameBasedIO::read(), libMesh::Nemesis_IO::read(), libMesh::XdrIO::read(), libMesh::CheckpointIO::read(), libMesh::EquationSystems::read(), libMesh::ExodusII_IO_Helper::read_elem_num_map(), libMesh::ExodusII_IO_Helper::read_global_values(), libMesh::ExodusII_IO::read_header(), libMesh::CheckpointIO::read_header(), libMesh::XdrIO::read_header(), libMesh::System::read_header(), libMesh::System::read_legacy_data(), libMesh::DynaIO::read_mesh(), libMesh::ExodusII_IO_Helper::read_node_num_map(), libMesh::System::read_parallel_data(), libMesh::TransientRBConstruction::read_riesz_representors_from_files(), libMesh::RBConstruction::read_riesz_representors_from_files(), libMesh::System::read_SCALAR_dofs(), libMesh::XdrIO::read_serialized_bc_names(), libMesh::XdrIO::read_serialized_bcs_helper(), libMesh::System::read_serialized_blocked_dof_objects(), libMesh::XdrIO::read_serialized_connectivity(), libMesh::System::read_serialized_data(), libMesh::XdrIO::read_serialized_nodes(), libMesh::XdrIO::read_serialized_nodesets(), libMesh::XdrIO::read_serialized_subdomain_names(), libMesh::System::read_serialized_vector(), libMesh::System::read_serialized_vectors(), libMesh::Nemesis_IO_Helper::read_var_names_impl(), libMesh::DistributedMesh::renumber_dof_objects(), libMesh::DistributedMesh::renumber_nodes_and_elements(), libMesh::DofMap::scatter_constraints(), libMesh::CheckpointIO::select_split_config(), libMesh::DistributedMesh::set_next_unique_id(), libMesh::DofMap::set_nonlocal_dof_objects(), libMesh::PetscDMWrapper::set_point_range_in_section(), libMesh::RBEIMEvaluation::side_gather_bfs(), ExodusTest< elem_type >::test_read_gold(), ExodusTest< elem_type >::test_write(), MeshInputTest::testAbaqusRead(), MeshInputTest::testCopyElementSolutionImpl(), MeshInputTest::testCopyElementVectorImpl(), MeshInputTest::testCopyNodalSolutionImpl(), DefaultCouplingTest::testCoupling(), PointNeighborCouplingTest::testCoupling(), MeshInputTest::testDynaFileMappings(), MeshInputTest::testDynaNoSplines(), MeshInputTest::testDynaReadElem(), MeshInputTest::testDynaReadPatch(), MeshInputTest::testExodusFileMappings(), MeshInputTest::testExodusIGASidesets(), MeshInputTest::testExodusWriteElementDataFromDiscontinuousNodalData(), MeshInputTest::testLowOrderEdgeBlocks(), SystemsTest::testProjectMatrix1D(), SystemsTest::testProjectMatrix2D(), SystemsTest::testProjectMatrix3D(), BoundaryInfoTest::testShellFaceConstraints(), MeshInputTest::testSingleElementImpl(), WriteVecAndScalar::testSolution(), CheckpointIOTest::testSplitter(), MeshInputTest::testTetgenIO(), libMesh::MeshTools::total_weight(), libMesh::MeshRefinement::uniformly_coarsen(), libMesh::DistributedMesh::update_parallel_id_counts(), libMesh::DTKAdapter::update_variable_values(), libMesh::NameBasedIO::write(), libMesh::XdrIO::write(), libMesh::CheckpointIO::write(), libMesh::EquationSystems::write(), libMesh::GMVIO::write_discontinuous_gmv(), libMesh::ExodusII_IO::write_element_data(), libMesh::ExodusII_IO_Helper::write_element_values(), libMesh::ExodusII_IO_Helper::write_element_values_element_major(), libMesh::ExodusII_IO_Helper::write_elements(), libMesh::ExodusII_IO_Helper::write_elemset_data(), libMesh::ExodusII_IO_Helper::write_elemsets(), libMesh::ExodusII_IO::write_global_data(), libMesh::ExodusII_IO_Helper::write_global_values(), libMesh::System::write_header(), libMesh::ExodusII_IO::write_information_records(), libMesh::ExodusII_IO_Helper::write_information_records(), libMesh::ExodusII_IO_Helper::write_nodal_coordinates(), libMesh::UCDIO::write_nodal_data(), libMesh::VTKIO::write_nodal_data(), libMesh::ExodusII_IO::write_nodal_data(), libMesh::ExodusII_IO::write_nodal_data_common(), libMesh::ExodusII_IO::write_nodal_data_discontinuous(), libMesh::ExodusII_IO_Helper::write_nodal_values(), libMesh::ExodusII_IO_Helper::write_nodeset_data(), libMesh::Nemesis_IO_Helper::write_nodesets(), libMesh::ExodusII_IO_Helper::write_nodesets(), libMesh::RBEIMEvaluation::write_out_interior_basis_functions(), libMesh::RBEIMEvaluation::write_out_node_basis_functions(), libMesh::RBEIMEvaluation::write_out_side_basis_functions(), write_output_solvedata(), libMesh::System::write_parallel_data(), libMesh::RBConstruction::write_riesz_representors_to_files(), libMesh::System::write_SCALAR_dofs(), libMesh::XdrIO::write_serialized_bc_names(), libMesh::XdrIO::write_serialized_bcs_helper(), libMesh::System::write_serialized_blocked_dof_objects(), libMesh::XdrIO::write_serialized_connectivity(), libMesh::System::write_serialized_data(), libMesh::XdrIO::write_serialized_nodes(), libMesh::XdrIO::write_serialized_nodesets(), libMesh::XdrIO::write_serialized_subdomain_names(), libMesh::System::write_serialized_vector(), libMesh::System::write_serialized_vectors(), libMesh::ExodusII_IO_Helper::write_sideset_data(), libMesh::Nemesis_IO_Helper::write_sidesets(), libMesh::ExodusII_IO_Helper::write_sidesets(), libMesh::ExodusII_IO::write_timestep(), libMesh::ExodusII_IO_Helper::write_timestep(), and libMesh::ExodusII_IO::write_timestep_discontinuous().

  { return cast_int<processor_id_type>(_communicator.rank()); }

restrict_solve_to()

template<typename T >

void libMesh::LinearSolver< T >::restrict_solve_to ( const std::vector< unsigned int > *const  dofs, const SubsetSolveMode  subset_solve_mode = SUBSET_ZERO  )

virtualinherited

After calling this method, all successive solves will be restricted to the given set of dofs, which must contain local dofs on each processor only and not contain any duplicates.

This mode can be disabled by calling this method with dofs being a nullptr.

Reimplemented in libMesh::PetscLinearSolver< T >, and libMesh::PetscLinearSolver< Number >.

Definition at line 138 of file linear_solver.C.

{
  if (dofs != nullptr)
    libmesh_not_implemented();
}

reuse_preconditioner()

template<typename T >

void libMesh::LinearSolver< T >::reuse_preconditioner ( bool  reuse_flag )

virtualinherited

Set the same_preconditioner flag, which indicates if we reuse the same preconditioner for subsequent solves.

Definition at line 131 of file linear_solver.C.

Referenced by libMesh::ImplicitSystem::disable_cache(), libMesh::RBConstruction::initialize_rb_construction(), and main().

{
  same_preconditioner = reuse_flag;
}

set_laspack_preconditioner_type()

template<typename T >

void libMesh::LaspackLinearSolver< T >::set_laspack_preconditioner_type ( )

private

Tells LASPACK to use the user-specified preconditioner stored in _preconditioner_type.

Definition at line 493 of file laspack_linear_solver.C.

References libMesh::err, libMesh::IDENTITY_PRECOND, libMesh::ILU_PRECOND, libMesh::JACOBI_PRECOND, and libMesh::SSOR_PRECOND.

{
  switch (this->_preconditioner_type)
    {
    case IDENTITY_PRECOND:
      _precond_type = nullptr; return;

    case ILU_PRECOND:
      _precond_type = ILUPrecond; return;

    case JACOBI_PRECOND:
      _precond_type = JacobiPrecond; return;

    case SSOR_PRECOND:
      _precond_type = SSORPrecond; return;


    default:
      libMesh::err << "ERROR:  Unsupported LASPACK Preconditioner: "
                   << this->_preconditioner_type << std::endl
                   << "Continuing with ILU"      << std::endl;
      this->_preconditioner_type = ILU_PRECOND;
      this->set_laspack_preconditioner_type();
    }
}

set_preconditioner_type()

template<typename T >

void libMesh::LinearSolver< T >::set_preconditioner_type ( const PreconditionerType  pct )

inherited

Sets the type of preconditioner to use.

Definition at line 110 of file linear_solver.C.

Referenced by TimeSolverTestImplementation< NewmarkSolver >::run_test_with_exact_soln(), and SystemsTest::testDofCouplingWithVarGroups().

{
  if (_preconditioner)
    _preconditioner->set_type(pct);
  else
    _preconditioner_type = pct;
}

set_solver_configuration()

template<typename T >

void libMesh::LinearSolver< T >::set_solver_configuration ( SolverConfiguration &  solver_configuration )

inherited

Set the solver configuration object.

Definition at line 179 of file linear_solver.C.

{
  _solver_configuration = &solver_configuration;
}

set_solver_type()

template<typename T>

void libMesh::LinearSolver< T >::set_solver_type ( const SolverType  st )

inlineinherited

Sets the type of solver to use.

Definition at line 116 of file linear_solver.h.

Referenced by adjust_linear_solver(), main(), TimeSolverTestImplementation< NewmarkSolver >::run_test_with_exact_soln(), and SystemsTest::testDofCouplingWithVarGroups().

  { _solver_type = st; }

solve() [1/6]

template<typename T >

std::pair< unsigned int, Real > libMesh::LaspackLinearSolver< T >::solve ( SparseMatrix< T > &  matrix, NumericVector< T > &  solution, NumericVector< T > &  rhs, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

overridevirtual

Call the Laspack solver.

Implements libMesh::LinearSolver< T >.

Definition at line 110 of file laspack_linear_solver.C.

References libMesh::LaspackMatrix< T >::_QMat, libMesh::BICG, libMesh::BICGSTAB, libMesh::CG, libMesh::CGN, libMesh::CGS, libMesh::LaspackMatrix< T >::close(), libMesh::Utility::enum_to_string(), libMesh::err, libMesh::GMRES, libMesh::TriangleWrapper::init(), libMesh::JACOBI, libMesh::QMR, and libMesh::SSOR.

{
  LOG_SCOPE("solve()", "LaspackLinearSolver");
  this->init ();

  // Make sure the data passed in are really in Laspack types
  LaspackMatrix<T> * matrix   = cast_ptr<LaspackMatrix<T> *>(&matrix_in);
  LaspackVector<T> * solution = cast_ptr<LaspackVector<T> *>(&solution_in);
  LaspackVector<T> * rhs      = cast_ptr<LaspackVector<T> *>(&rhs_in);

  const int max_its = this->get_int_solver_setting("max_its", m_its);
  const double abs_tol = this->get_real_solver_setting("abs_tol", tol);

  // Zero-out the solution to prevent the solver from exiting in 0
  // iterations (?)
  //TODO:[BSK] Why does Laspack do this?  Comment out this and try ex13...
  solution->zero();

  // Close the matrix and vectors in case this wasn't already done.
  matrix->close ();
  solution->close ();
  rhs->close ();

  // Set the preconditioner type
  this->set_laspack_preconditioner_type ();

  // Set the solver tolerance
  SetRTCAccuracy (abs_tol);

  // Solve the linear system
  switch (this->_solver_type)
    {
      // Conjugate-Gradient
    case CG:
      {
        CGIter (&matrix->_QMat,
                &solution->_vec,
                &rhs->_vec,
                max_its,
                _precond_type,
                1.);
        break;
      }

      // Conjugate-Gradient Normalized
    case CGN:
      {
        CGNIter (&matrix->_QMat,
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Conjugate-Gradient Squared
    case CGS:
      {
        CGSIter (&matrix->_QMat,
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Bi-Conjugate Gradient
    case BICG:
      {
        BiCGIter (&matrix->_QMat,
                  &solution->_vec,
                  &rhs->_vec,
                  max_its,
                  _precond_type,
                  1.);
        break;
      }

      // Bi-Conjugate Gradient Stabilized
    case BICGSTAB:
      {
        BiCGSTABIter (&matrix->_QMat,
                      &solution->_vec,
                      &rhs->_vec,
                      max_its,
                      _precond_type,
                      1.);
        break;
      }

      // Quasi-Minimum Residual
    case QMR:
      {
        QMRIter (&matrix->_QMat,
                 &solution->_vec,
                 &rhs->_vec,
                 max_its,
                 _precond_type,
                 1.);
        break;
      }

      // Symmetric over-relaxation
    case SSOR:
      {
        SSORIter (&matrix->_QMat,
                  &solution->_vec,
                  &rhs->_vec,
                  max_its,
                  _precond_type,
                  1.);
        break;
      }

      // Jacobi Relaxation
    case JACOBI:
      {
        JacobiIter (&matrix->_QMat,
                    &solution->_vec,
                    &rhs->_vec,
                    max_its,
                    _precond_type,
                    1.);
        break;
      }

      // Generalized Minimum Residual
    case GMRES:
      {
        SetGMRESRestart (30);
        GMRESIter (&matrix->_QMat,
                   &solution->_vec,
                   &rhs->_vec,
                   max_its,
                   _precond_type,
                   1.);
        break;
      }

      // Unknown solver, use GMRES
    default:
      {
        libMesh::err << "ERROR:  Unsupported LASPACK Solver: "
                     << Utility::enum_to_string(this->_solver_type) << std::endl
                     << "Continuing with GMRES" << std::endl;

        this->_solver_type = GMRES;

        return this->solve (*matrix,
                            *solution,
                            *rhs,
                            tol,
                            m_its);
      }
    }

  // Check for an error
  if (LASResult() != LASOK)
    {
      WriteLASErrDescr(stdout);
      libmesh_error_msg("Exiting after LASPACK Error!");
    }

  // Get the convergence step # and residual
  return std::make_pair(GetLastNoIter(), GetLastAccuracy());
}

solve() [2/6]

template<typename T >

std::pair< unsigned int, Real > libMesh::LaspackLinearSolver< T >::solve ( SparseMatrix< T > &  matrix, SparseMatrix< T > &  pc, NumericVector< T > &  solution, NumericVector< T > &  rhs, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

inlineoverridevirtual

Call the Laspack solver.

Implements libMesh::LinearSolver< T >.

Definition at line 176 of file laspack_linear_solver.h.

{
  libmesh_error_msg("ERROR: LASPACK does not support a user-supplied preconditioner!");

  std::pair<unsigned int, Real> p;
  return p;
}

solve() [3/6]

template<typename T >

std::pair< unsigned int, Real > libMesh::LaspackLinearSolver< T >::solve ( const ShellMatrix< T > &  shell_matrix, NumericVector< T > &  solution_in, NumericVector< T > &  rhs_in, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

overridevirtual

This function solves a system whose matrix is a shell matrix.

Implements libMesh::LinearSolver< T >.

Definition at line 465 of file laspack_linear_solver.C.

{
  libmesh_not_implemented();
  return std::make_pair(0,0.0);
}

solve() [4/6]

template<typename T >

std::pair< unsigned int, Real > libMesh::LaspackLinearSolver< T >::solve ( const ShellMatrix< T > &  shell_matrix, const SparseMatrix< T > &  precond_matrix, NumericVector< T > &  solution_in, NumericVector< T > &  rhs_in, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

overridevirtual

This function solves a system whose matrix is a shell matrix, but a sparse matrix is used as preconditioning matrix, this allowing other preconditioners than JACOBI.

Implements libMesh::LinearSolver< T >.

Definition at line 479 of file laspack_linear_solver.C.

{
  libmesh_not_implemented();
  return std::make_pair(0,0.0);
}

solve() [5/6]

template<typename T>

std::pair< unsigned int, Real > libMesh::LinearSolver< T >::solve ( SparseMatrix< T > &  matrix, SparseMatrix< T > *  precond_matrix, NumericVector< T > &  sol, NumericVector< T > &  rhs, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

inlineinherited

This function calls the solver "_solver_type" preconditioned with the "_preconditioner_type" preconditioner.

The preconditioning matrix is used if it is provided, or the system matrix is used if precond_matrix is null

Definition at line 335 of file linear_solver.h.

{
  if (pc_mat)
    return this->solve(mat, *pc_mat, sol, rhs, tol, n_iter);
  else
    return this->solve(mat, sol, rhs, tol, n_iter);
}

solve() [6/6]

template<typename T>

std::pair< unsigned int, Real > libMesh::LinearSolver< T >::solve ( const ShellMatrix< T > &  matrix, const SparseMatrix< T > *  precond_matrix, NumericVector< T > &  sol, NumericVector< T > &  rhs, const std::optional< double >  tol = std::nullopt, const std::optional< unsigned int >  m_its = std::nullopt  )

inlineinherited

This function solves a system whose matrix is a shell matrix, but an optional sparse matrix may be used as preconditioning matrix.

Definition at line 352 of file linear_solver.h.

{
  if (pc_mat)
    return this->solve(mat, *pc_mat, sol, rhs, tol, n_iter);
  else
    return this->solve(mat, sol, rhs, tol, n_iter);
}

solver_type()

template<typename T>

SolverType libMesh::LinearSolver< T >::solver_type ( ) const

inlineinherited

Returns

The type of solver to use.

Definition at line 111 of file linear_solver.h.

{ return _solver_type; }

Member Data Documentation

_communicator

const Parallel::Communicator& libMesh::ParallelObject::_communicator

protectedinherited

Definition at line 120 of file parallel_object.h.

Referenced by libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::ParallelObject::comm(), libMesh::ParallelObject::n_processors(), libMesh::ParallelObject::operator=(), libMesh::ParallelObject::processor_id(), and libMesh::BoundaryInfo::regenerate_id_sets().

_counts

ReferenceCounter::Counts libMesh::ReferenceCounter::_counts

staticprotectedinherited

Actually holds the data.

Definition at line 124 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::get_info().

_enable_print_counter

bool libMesh::ReferenceCounter::_enable_print_counter = true

staticprotectedinherited

Flag to control whether reference count information is printed when print_info is called.

Definition at line 143 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::disable_print_counter_info(), libMesh::ReferenceCounter::enable_print_counter_info(), and libMesh::ReferenceCounter::print_info().

_is_initialized

template<typename T>

bool libMesh::LinearSolver< T >::_is_initialized

protectedinherited

Flag indicating if the data structures have been initialized.

Definition at line 276 of file linear_solver.h.

Referenced by libMesh::LinearSolver< Number >::initialized().

_mutex

Threads::spin_mutex libMesh::ReferenceCounter::_mutex

staticprotectedinherited

Mutual exclusion object to enable thread-safe reference counting.

Definition at line 137 of file reference_counter.h.

_n_objects

Threads::atomic< unsigned int > libMesh::ReferenceCounter::_n_objects

staticprotectedinherited

The number of objects.

Print the reference count information when the number returns to 0.

Definition at line 132 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::n_objects(), libMesh::ReferenceCounter::ReferenceCounter(), and libMesh::ReferenceCounter::~ReferenceCounter().

_precond_type

template<typename T >

PrecondProcType libMesh::LaspackLinearSolver< T >::_precond_type

private

Preconditioner type.

Definition at line 149 of file laspack_linear_solver.h.

_preconditioner

template<typename T>

Preconditioner<T>* libMesh::LinearSolver< T >::_preconditioner

protectedinherited

Holds the Preconditioner object to be used for the linear solves.

Definition at line 281 of file linear_solver.h.

_preconditioner_type

template<typename T>

PreconditionerType libMesh::LinearSolver< T >::_preconditioner_type

protectedinherited

Enum stating with type of preconditioner to use.

Definition at line 271 of file linear_solver.h.

Referenced by libMesh::AztecLinearSolver< T >::AztecLinearSolver().

_solver_configuration

template<typename T>

SolverConfiguration* libMesh::LinearSolver< T >::_solver_configuration

protectedinherited

Optionally store a SolverOptions object that can be used to set parameters like solver type, tolerances and iteration limits.

Definition at line 295 of file linear_solver.h.

_solver_type

template<typename T>

SolverType libMesh::LinearSolver< T >::_solver_type

protectedinherited

Enum stating which type of iterative solver to use.

Definition at line 266 of file linear_solver.h.

Referenced by libMesh::EigenSparseLinearSolver< T >::EigenSparseLinearSolver(), libMesh::LinearSolver< Number >::set_solver_type(), and libMesh::LinearSolver< Number >::solver_type().

same_preconditioner

template<typename T>

bool libMesh::LinearSolver< T >::same_preconditioner

protectedinherited

Boolean flag to indicate whether we want to use an identical preconditioner to the previous solve.

This can save substantial work in the cases where the system matrix is the same for successive solves.

Definition at line 289 of file linear_solver.h.

---

The documentation for this class was generated from the following files:

• include/numerics/laspack_matrix.h
• include/solvers/laspack_linear_solver.h
• src/solvers/laspack_linear_solver.C