Manages consistently variables, degrees of freedom, and coefficient vectors. More...

#include <system.h>

Inheritance diagram for libMesh::System:

[legend]

Classes
class	Assembly

class	Constraint

class	Initialization

class	QOI

class	QOIDerivative

Public Types
typedef System	sys_type

typedef Number(*	ValueFunctionPointer) (const Point &p, const Parameters &Parameters, const std::string &sys_name, const std::string &unknown_name)

typedef Gradient(*	GradientFunctionPointer) (const Point &p, const Parameters &parameters, const std::string &sys_name, const std::string &unknown_name)

typedef std::map< std::string, NumericVector< Number > * >::iterator	vectors_iterator

typedef std::map< std::string, NumericVector< Number > * >::const_iterator	const_vectors_iterator

Public Member Functions
	System (EquationSystems &es, const std::string &name, const unsigned int number)

virtual	~System ()

sys_type &	system ()

virtual void	clear ()

void	init ()

virtual void	reinit ()

virtual void	reinit_constraints ()

bool	is_initialized ()

virtual void	update ()

virtual void	assemble ()

virtual void	assemble_qoi (const QoISet &qoi_indices=QoISet())

virtual void	assemble_qoi_derivative (const QoISet &qoi_indices=QoISet(), bool include_liftfunc=true, bool apply_constraints=true)

virtual void	assemble_residual_derivatives (const ParameterVector &parameters)

virtual void	restrict_solve_to (const SystemSubset *subset, const SubsetSolveMode subset_solve_mode=SUBSET_ZERO)

virtual void	solve ()

virtual std::pair< unsigned int, Real >	sensitivity_solve (const ParameterVector &parameters)

virtual std::pair< unsigned int, Real >	weighted_sensitivity_solve (const ParameterVector &parameters, const ParameterVector &weights)

virtual std::pair< unsigned int, Real >	adjoint_solve (const QoISet &qoi_indices=QoISet())

virtual std::pair< unsigned int, Real >	weighted_sensitivity_adjoint_solve (const ParameterVector &parameters, const ParameterVector &weights, const QoISet &qoi_indices=QoISet())

bool	is_adjoint_already_solved () const

void	set_adjoint_already_solved (bool setting)

virtual void	qoi_parameter_sensitivity (const QoISet &qoi_indices, const ParameterVector &parameters, SensitivityData &sensitivities)

virtual void	adjoint_qoi_parameter_sensitivity (const QoISet &qoi_indices, const ParameterVector &parameters, SensitivityData &sensitivities)

virtual void	forward_qoi_parameter_sensitivity (const QoISet &qoi_indices, const ParameterVector &parameters, SensitivityData &sensitivities)

virtual void	qoi_parameter_hessian (const QoISet &qoi_indices, const ParameterVector &parameters, SensitivityData &hessian)

virtual void	qoi_parameter_hessian_vector_product (const QoISet &qoi_indices, const ParameterVector &parameters, const ParameterVector &vector, SensitivityData &product)

virtual bool	compare (const System &other_system, const Real threshold, const bool verbose) const

const std::string &	name () const

virtual std::string	system_type () const

void	project_solution (FunctionBase< Number > f, FunctionBase< Gradient > g=nullptr) const

void	project_solution (FEMFunctionBase< Number > f, FEMFunctionBase< Gradient > g=nullptr) const

void	project_solution (ValueFunctionPointer fptr, GradientFunctionPointer gptr, const Parameters &parameters) const

void	project_vector (NumericVector< Number > &new_vector, FunctionBase< Number > f, FunctionBase< Gradient > g=nullptr, int is_adjoint=-1) const

void	project_vector (NumericVector< Number > &new_vector, FEMFunctionBase< Number > f, FEMFunctionBase< Gradient > g=nullptr, int is_adjoint=-1) const

void	project_vector (ValueFunctionPointer fptr, GradientFunctionPointer gptr, const Parameters &parameters, NumericVector< Number > &new_vector, int is_adjoint=-1) const

void	boundary_project_solution (const std::set< boundary_id_type > &b, const std::vector< unsigned int > &variables, FunctionBase< Number > f, FunctionBase< Gradient > g=nullptr)

void	boundary_project_solution (const std::set< boundary_id_type > &b, const std::vector< unsigned int > &variables, ValueFunctionPointer fptr, GradientFunctionPointer gptr, const Parameters &parameters)

void	boundary_project_vector (const std::set< boundary_id_type > &b, const std::vector< unsigned int > &variables, NumericVector< Number > &new_vector, FunctionBase< Number > f, FunctionBase< Gradient > g=nullptr, int is_adjoint=-1) const

void	boundary_project_vector (const std::set< boundary_id_type > &b, const std::vector< unsigned int > &variables, ValueFunctionPointer fptr, GradientFunctionPointer gptr, const Parameters &parameters, NumericVector< Number > &new_vector, int is_adjoint=-1) const

unsigned int	number () const

void	update_global_solution (std::vector< Number > &global_soln) const

void	update_global_solution (std::vector< Number > &global_soln, const processor_id_type dest_proc) const

const MeshBase &	get_mesh () const

MeshBase &	get_mesh ()

const DofMap &	get_dof_map () const

DofMap &	get_dof_map ()

const EquationSystems &	get_equation_systems () const

EquationSystems &	get_equation_systems ()

bool	active () const

void	activate ()

void	deactivate ()

void	set_basic_system_only ()

vectors_iterator	vectors_begin ()

const_vectors_iterator	vectors_begin () const

vectors_iterator	vectors_end ()

const_vectors_iterator	vectors_end () const

NumericVector< Number > &	add_vector (const std::string &vec_name, const bool projections=true, const ParallelType type=PARALLEL)

void	remove_vector (const std::string &vec_name)

bool &	project_solution_on_reinit (void)

bool	have_vector (const std::string &vec_name) const

const NumericVector< Number > *	request_vector (const std::string &vec_name) const

NumericVector< Number > *	request_vector (const std::string &vec_name)

const NumericVector< Number > *	request_vector (const unsigned int vec_num) const

NumericVector< Number > *	request_vector (const unsigned int vec_num)

const NumericVector< Number > &	get_vector (const std::string &vec_name) const

NumericVector< Number > &	get_vector (const std::string &vec_name)

const NumericVector< Number > &	get_vector (const unsigned int vec_num) const

NumericVector< Number > &	get_vector (const unsigned int vec_num)

const std::string &	vector_name (const unsigned int vec_num) const

const std::string &	vector_name (const NumericVector< Number > &vec_reference) const

void	set_vector_as_adjoint (const std::string &vec_name, int qoi_num)

int	vector_is_adjoint (const std::string &vec_name) const

void	set_vector_preservation (const std::string &vec_name, bool preserve)

bool	vector_preservation (const std::string &vec_name) const

NumericVector< Number > &	add_adjoint_solution (unsigned int i=0)

NumericVector< Number > &	get_adjoint_solution (unsigned int i=0)

const NumericVector< Number > &	get_adjoint_solution (unsigned int i=0) const

NumericVector< Number > &	add_sensitivity_solution (unsigned int i=0)

NumericVector< Number > &	get_sensitivity_solution (unsigned int i=0)

const NumericVector< Number > &	get_sensitivity_solution (unsigned int i=0) const

NumericVector< Number > &	add_weighted_sensitivity_adjoint_solution (unsigned int i=0)

NumericVector< Number > &	get_weighted_sensitivity_adjoint_solution (unsigned int i=0)

const NumericVector< Number > &	get_weighted_sensitivity_adjoint_solution (unsigned int i=0) const

NumericVector< Number > &	add_weighted_sensitivity_solution ()

NumericVector< Number > &	get_weighted_sensitivity_solution ()

const NumericVector< Number > &	get_weighted_sensitivity_solution () const

NumericVector< Number > &	add_adjoint_rhs (unsigned int i=0)

NumericVector< Number > &	get_adjoint_rhs (unsigned int i=0)

const NumericVector< Number > &	get_adjoint_rhs (unsigned int i=0) const

NumericVector< Number > &	add_sensitivity_rhs (unsigned int i=0)

NumericVector< Number > &	get_sensitivity_rhs (unsigned int i=0)

const NumericVector< Number > &	get_sensitivity_rhs (unsigned int i=0) const

unsigned int	n_vectors () const

virtual unsigned int	n_matrices () const

unsigned int	n_vars () const

unsigned int	n_variable_groups () const

unsigned int	n_components () const

dof_id_type	n_dofs () const

dof_id_type	n_active_dofs () const

dof_id_type	n_constrained_dofs () const

dof_id_type	n_local_constrained_dofs () const

dof_id_type	n_local_dofs () const

unsigned int	add_variable (const std::string &var, const FEType &type, const std::set< subdomain_id_type > *const active_subdomains=nullptr)

unsigned int	add_variable (const std::string &var, const Order order=FIRST, const FEFamily=LAGRANGE, const std::set< subdomain_id_type > *const active_subdomains=nullptr)

unsigned int	add_variables (const std::vector< std::string > &vars, const FEType &type, const std::set< subdomain_id_type > *const active_subdomains=nullptr)

unsigned int	add_variables (const std::vector< std::string > &vars, const Order order=FIRST, const FEFamily=LAGRANGE, const std::set< subdomain_id_type > *const active_subdomains=nullptr)

const Variable &	variable (unsigned int var) const

const VariableGroup &	variable_group (unsigned int vg) const

bool	has_variable (const std::string &var) const

const std::string &	variable_name (const unsigned int i) const

unsigned short int	variable_number (const std::string &var) const

void	get_all_variable_numbers (std::vector< unsigned int > &all_variable_numbers) const

unsigned int	variable_scalar_number (const std::string &var, unsigned int component) const

unsigned int	variable_scalar_number (unsigned int var_num, unsigned int component) const

const FEType &	variable_type (const unsigned int i) const

const FEType &	variable_type (const std::string &var) const

bool	identify_variable_groups () const

void	identify_variable_groups (const bool)

Real	calculate_norm (const NumericVector< Number > &v, unsigned int var, FEMNormType norm_type, std::set< unsigned int > *skip_dimensions=nullptr) const

Real	calculate_norm (const NumericVector< Number > &v, const SystemNorm &norm, std::set< unsigned int > *skip_dimensions=nullptr) const

void	read_header (Xdr &io, const std::string &version, const bool read_header=true, const bool read_additional_data=true, const bool read_legacy_format=false)

void	read_legacy_data (Xdr &io, const bool read_additional_data=true)

template<typename ValType >
void	read_serialized_data (Xdr &io, const bool read_additional_data=true)

void	read_serialized_data (Xdr &io, const bool read_additional_data=true)

template<typename InValType >
std::size_t	read_serialized_vectors (Xdr &io, const std::vector< NumericVector< Number > *> &vectors) const

std::size_t	read_serialized_vectors (Xdr &io, const std::vector< NumericVector< Number > *> &vectors) const

template<typename InValType >
void	read_parallel_data (Xdr &io, const bool read_additional_data)

void	read_parallel_data (Xdr &io, const bool read_additional_data)

void	write_header (Xdr &io, const std::string &version, const bool write_additional_data) const

void	write_serialized_data (Xdr &io, const bool write_additional_data=true) const

std::size_t	write_serialized_vectors (Xdr &io, const std::vector< const NumericVector< Number > *> &vectors) const

void	write_parallel_data (Xdr &io, const bool write_additional_data) const

std::string	get_info () const

void	attach_init_function (void fptr(EquationSystems &es, const std::string &name))

void	attach_init_object (Initialization &init)

void	attach_assemble_function (void fptr(EquationSystems &es, const std::string &name))

void	attach_assemble_object (Assembly &assemble)

void	attach_constraint_function (void fptr(EquationSystems &es, const std::string &name))

void	attach_constraint_object (Constraint &constrain)

void	attach_QOI_function (void fptr(EquationSystems &es, const std::string &name, const QoISet &qoi_indices))

void	attach_QOI_object (QOI &qoi)

void	attach_QOI_derivative (void fptr(EquationSystems &es, const std::string &name, const QoISet &qoi_indices, bool include_liftfunc, bool apply_constraints))

void	attach_QOI_derivative_object (QOIDerivative &qoi_derivative)

virtual void	user_initialization ()

virtual void	user_assembly ()

virtual void	user_constrain ()

virtual void	user_QOI (const QoISet &qoi_indices)

virtual void	user_QOI_derivative (const QoISet &qoi_indices=QoISet(), bool include_liftfunc=true, bool apply_constraints=true)

virtual void	re_update ()

virtual void	restrict_vectors ()

virtual void	prolong_vectors ()

virtual void	disable_cache ()

Number	current_solution (const dof_id_type global_dof_number) const

unsigned int	n_qois () const

Number	point_value (unsigned int var, const Point &p, const bool insist_on_success=true) const

Number	point_value (unsigned int var, const Point &p, const Elem &e) const

Number	point_value (unsigned int var, const Point &p, const Elem *e) const

Gradient	point_gradient (unsigned int var, const Point &p, const bool insist_on_success=true) const

Gradient	point_gradient (unsigned int var, const Point &p, const Elem &e) const

Gradient	point_gradient (unsigned int var, const Point &p, const Elem *e) const

Tensor	point_hessian (unsigned int var, const Point &p, const bool insist_on_success=true) const

Tensor	point_hessian (unsigned int var, const Point &p, const Elem &e) const

Tensor	point_hessian (unsigned int var, const Point &p, const Elem *e) const

void	local_dof_indices (const unsigned int var, std::set< dof_id_type > &var_indices) const

void	zero_variable (NumericVector< Number > &v, unsigned int var_num) const

bool &	hide_output ()

void	projection_matrix (SparseMatrix< Number > &proj_mat) const

const Parallel::Communicator &	comm () const

processor_id_type	n_processors () const

processor_id_type	processor_id () const

Static Public Member Functions
static std::string	get_info ()

static void	print_info (std::ostream &out=libMesh::out)

static unsigned int	n_objects ()

static void	enable_print_counter_info ()

static void	disable_print_counter_info ()

Public Attributes
bool	assemble_before_solve

bool	use_fixed_solution

int	extra_quadrature_order

std::unique_ptr< NumericVector< Number > >	solution

std::unique_ptr< NumericVector< Number > >	current_local_solution

Real	time

std::vector< Number >	qoi

Protected Types
typedef std::map< std::string, std::pair< unsigned int, unsigned int > >	Counts

Protected Member Functions
virtual void	init_data ()

void	project_vector (NumericVector< Number > &, int is_adjoint=-1) const

void	project_vector (const NumericVector< Number > &, NumericVector< Number > &, int is_adjoint=-1) const

void	increment_constructor_count (const std::string &name)

void	increment_destructor_count (const std::string &name)

Protected Attributes
const Parallel::Communicator &	_communicator

Static Protected Attributes
static Counts	_counts

static Threads::atomic< unsigned int >	_n_objects

static Threads::spin_mutex	_mutex

static bool	_enable_print_counter = true

Private Member Functions
	System (const System &)

System &	operator= (const System &)

Real	discrete_var_norm (const NumericVector< Number > &v, unsigned int var, FEMNormType norm_type) const

template<typename iterator_type , typename InValType >
std::size_t	read_serialized_blocked_dof_objects (const dof_id_type n_objects, const iterator_type begin, const iterator_type end, const InValType dummy, Xdr &io, const std::vector< NumericVector< Number > *> &vecs, const unsigned int var_to_read=libMesh::invalid_uint) const

unsigned int	read_SCALAR_dofs (const unsigned int var, Xdr &io, NumericVector< Number > *vec) const

template<typename InValType >
numeric_index_type	read_serialized_vector (Xdr &io, NumericVector< Number > *vec)

numeric_index_type	read_serialized_vector (Xdr &io, NumericVector< Number > &vec)

template<typename iterator_type >
std::size_t	write_serialized_blocked_dof_objects (const std::vector< const NumericVector< Number > *> &vecs, const dof_id_type n_objects, const iterator_type begin, const iterator_type end, Xdr &io, const unsigned int var_to_write=libMesh::invalid_uint) const

unsigned int	write_SCALAR_dofs (const NumericVector< Number > &vec, const unsigned int var, Xdr &io) const

dof_id_type	write_serialized_vector (Xdr &io, const NumericVector< Number > &vec) const

Private Attributes
void(*	_init_system_function )(EquationSystems &es, const std::string &name)

Initialization *	_init_system_object

void(*	_assemble_system_function )(EquationSystems &es, const std::string &name)

Assembly *	_assemble_system_object

void(*	_constrain_system_function )(EquationSystems &es, const std::string &name)

Constraint *	_constrain_system_object

void(*	_qoi_evaluate_function )(EquationSystems &es, const std::string &name, const QoISet &qoi_indices)

QOI *	_qoi_evaluate_object

void(*	_qoi_evaluate_derivative_function )(EquationSystems &es, const std::string &name, const QoISet &qoi_indices, bool include_liftfunc, bool apply_constraints)

QOIDerivative *	_qoi_evaluate_derivative_object

std::unique_ptr< DofMap >	_dof_map

EquationSystems &	_equation_systems

MeshBase &	_mesh

const std::string	_sys_name

const unsigned int	_sys_number

std::vector< Variable >	_variables

std::vector< VariableGroup >	_variable_groups

std::map< std::string, unsigned short int >	_variable_numbers

bool	_active

std::map< std::string, NumericVector< Number > *>	_vectors

std::map< std::string, bool >	_vector_projections

std::map< std::string, int >	_vector_is_adjoint

std::map< std::string, ParallelType >	_vector_types

bool	_solution_projection

bool	_basic_system_only

bool	_is_initialized

bool	_identify_variable_groups

unsigned int	_additional_data_written

std::vector< unsigned int >	_written_var_indices

bool	adjoint_already_solved

bool	_hide_output

Detailed Description

Manages consistently variables, degrees of freedom, and coefficient vectors.

This is the base class for classes which contain information related to any physical process that might be simulated. Such information may range from the actual solution values to algorithmic flags that may be used to control the numerical methods employed. In general, use an EquationSystems object to handle one or more of the children of this class.

Especially, this class manages the variables of the differential equation, the coefficient vectors and the DofMap, and ensures that these are consistent. It provides storage for the solution. Furthermore, (de-) serialization functionality is provided.

Author: Benjamin S. Kirk

Date: 2003-2004

Definition at line 92 of file system.h.

Member Typedef Documentation

◆ const_vectors_iterator

typedef std::map<std::string, NumericVector<Number> *>::const_iterator libMesh::System::const_vectors_iterator

Definition at line 749 of file system.h.

◆ 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 117 of file reference_counter.h.

◆ GradientFunctionPointer

typedef Gradient(* libMesh::System::GradientFunctionPointer) (const Point &p, const Parameters &parameters, const std::string &sys_name, const std::string &unknown_name)

Definition at line 524 of file system.h.

◆ sys_type

typedef System libMesh::System::sys_type

The type of system.

Definition at line 235 of file system.h.

◆ ValueFunctionPointer

typedef Number(* libMesh::System::ValueFunctionPointer) (const Point &p, const Parameters &Parameters, const std::string &sys_name, const std::string &unknown_name)

Projects arbitrary functions onto the current solution. The function value fptr and its gradient gptr are represented by function pointers. A gradient gptr is only required/used for projecting onto finite element spaces with continuous derivatives.

Definition at line 520 of file system.h.

◆ vectors_iterator

typedef std::map<std::string, NumericVector<Number> *>::iterator libMesh::System::vectors_iterator

Vector iterator typedefs.

Definition at line 748 of file system.h.

Constructor & Destructor Documentation

◆ System() [1/2]

libMesh::System::System	(	EquationSystems &	es,
		const std::string &	name,
		const unsigned int	number
	)

Constructor. Optionally initializes required data structures.

Definition at line 61 of file system.C.

                                               :
 
   ParallelObject                    (es),
   assemble_before_solve             (true),
   use_fixed_solution                (false),
   extra_quadrature_order            (0),
   solution                          (NumericVector<Number>::build(this->comm())),
   current_local_solution            (NumericVector<Number>::build(this->comm())),
   time                              (0.),
   qoi                               (0),
   _init_system_function             (nullptr),
   _init_system_object               (nullptr),
   _assemble_system_function         (nullptr),
   _assemble_system_object           (nullptr),
   _constrain_system_function        (nullptr),
   _constrain_system_object          (nullptr),
   _qoi_evaluate_function            (nullptr),
   _qoi_evaluate_object              (nullptr),
   _qoi_evaluate_derivative_function (nullptr),
   _qoi_evaluate_derivative_object   (nullptr),
   _dof_map                          (new DofMap(number_in, es.get_mesh())),
   _equation_systems                 (es),
   _mesh                             (es.get_mesh()),
   _sys_name                         (name_in),
   _sys_number                       (number_in),
   _active                           (true),
   _solution_projection              (true),
   _basic_system_only                (false),
   _is_initialized                   (false),
   _identify_variable_groups         (true),
   _additional_data_written          (false),
   adjoint_already_solved            (false),
   _hide_output                      (false)
 {
 }

◆ ~System()

libMesh::System::~System ( )

virtual

Destructor.

Definition at line 120 of file system.C.

References _assemble_system_function, _assemble_system_object, _constrain_system_function, _constrain_system_object, _init_system_function, _init_system_object, _qoi_evaluate_derivative_function, _qoi_evaluate_derivative_object, _qoi_evaluate_function, _qoi_evaluate_object, clear(), and libMesh::closed().

 {
   // Null-out the function pointers.  Since this
   // class is getting destructed it is pointless,
   // but a good habit.
   _init_system_function =
     _assemble_system_function =
     _constrain_system_function = nullptr;
 
   _qoi_evaluate_function = nullptr;
   _qoi_evaluate_derivative_function =  nullptr;
 
   // nullptr-out user-provided objects.
   _init_system_object             = nullptr;
   _assemble_system_object         = nullptr;
   _constrain_system_object        = nullptr;
   _qoi_evaluate_object            = nullptr;
   _qoi_evaluate_derivative_object = nullptr;
 
   // Clear data
   // Note: although clear() is virtual, C++ only calls
   // the clear() of the base class in the destructor.
   // Thus we add System namespace to make it clear.
   System::clear ();
 
   libmesh_exceptionless_assert (!libMesh::closed());
 }

◆ System() [2/2]

libMesh::System::System ( const System & other )

private

This isn't a copyable object, so let's make sure nobody tries.

We won't even bother implementing this; we'll just make sure that the compiler doesn't implement a default.

Definition at line 102 of file system.C.

                                     :
   ReferenceCountedObject<System>(),
   ParallelObject(other),
   _equation_systems(other._equation_systems),
   _mesh(other._mesh),
   _sys_number(other._sys_number)
 {
   libmesh_not_implemented();
 }

Member Function Documentation

◆ activate()

void libMesh::System::activate ( )

inline

Activates the system. Only active systems are solved.

Definition at line 2073 of file system.h.

References _active.

 {
   _active = true;
 }

◆ active()

bool libMesh::System::active ( ) const

inline

Returns: true if the system is active, false otherwise. An active system will be solved.

Definition at line 2065 of file system.h.

References _active.

 {
   return _active;
 }

◆ add_adjoint_rhs()

NumericVector< Number > & libMesh::System::add_adjoint_rhs ( unsigned int i = 0 )

Returns: A reference to one of the system's adjoint rhs vectors, by default the one corresponding to the first qoi. Creates the vector if it doesn't already exist.

Definition at line 1021 of file system.C.

References add_vector().

Referenced by libMesh::ExplicitSystem::assemble_qoi_derivative(), and libMesh::FEMSystem::assemble_qoi_derivative().

 {
   std::ostringstream adjoint_rhs_name;
   adjoint_rhs_name << "adjoint_rhs" << i;
 
   return this->add_vector(adjoint_rhs_name.str(), false);
 }

◆ add_adjoint_solution()

NumericVector< Number > & libMesh::System::add_adjoint_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's adjoint solution vectors, by default the one corresponding to the first qoi. Creates the vector if it doesn't already exist.

Definition at line 957 of file system.C.

References add_vector(), and set_vector_as_adjoint().

Referenced by libMesh::ImplicitSystem::adjoint_solve().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "adjoint_solution" << i;
 
   NumericVector<Number> & returnval = this->add_vector(adjoint_name.str());
   this->set_vector_as_adjoint(adjoint_name.str(), i);
   return returnval;
 }

◆ add_sensitivity_rhs()

NumericVector< Number > & libMesh::System::add_sensitivity_rhs ( unsigned int i = 0 )

Returns: A reference to one of the system's sensitivity rhs vectors, by default the one corresponding to the first parameter. Creates the vector if it doesn't already exist.

Definition at line 1051 of file system.C.

References add_vector().

Referenced by libMesh::ImplicitSystem::assemble_residual_derivatives().

 {
   std::ostringstream sensitivity_rhs_name;
   sensitivity_rhs_name << "sensitivity_rhs" << i;
 
   return this->add_vector(sensitivity_rhs_name.str(), false);
 }

◆ add_sensitivity_solution()

NumericVector< Number > & libMesh::System::add_sensitivity_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's solution sensitivity vectors, by default the one corresponding to the first parameter. Creates the vector if it doesn't already exist.

Definition at line 906 of file system.C.

References add_vector().

Referenced by libMesh::ImplicitSystem::sensitivity_solve().

 {
   std::ostringstream sensitivity_name;
   sensitivity_name << "sensitivity_solution" << i;
 
   return this->add_vector(sensitivity_name.str());
 }

◆ add_variable() [1/2]

unsigned int libMesh::System::add_variable	(	const std::string &	var,
		const FEType &	type,
		const std::set< subdomain_id_type > *const	active_subdomains = `nullptr`
	)

Adds the variable var to the list of variables for this system.

Returns: The index number for the new variable.

Definition at line 1081 of file system.C.

References _variable_groups, _variable_numbers, _variables, add_variables(), libMesh::VariableGroup::append(), identify_variable_groups(), is_initialized(), n_variable_groups(), n_vars(), number(), variable_name(), and variable_type().

Referenced by libMesh::DifferentiableSystem::add_second_order_dot_vars(), add_variable(), libMesh::ErrorVector::plot_error(), and read_header().

 {
   libmesh_assert(!this->is_initialized());
 
   // Make sure the variable isn't there already
   // or if it is, that it's the type we want
   for (unsigned int v=0; v<this->n_vars(); v++)
     if (this->variable_name(v) == var)
       {
         if (this->variable_type(v) == type)
           return _variables[v].number();
 
         libmesh_error_msg("ERROR: incompatible variable " << var << " has already been added for this system!");
       }
 
   // Optimize for VariableGroups here - if the user is adding multiple
   // variables of the same FEType and subdomain restriction, catch
   // that here and add them as members of the same VariableGroup.
   //
   // start by setting this flag to whatever the user has requested
   // and then consider the conditions which should negate it.
   bool should_be_in_vg = this->identify_variable_groups();
 
   // No variable groups, nothing to add to
   if (!this->n_variable_groups())
     should_be_in_vg = false;
 
   else
     {
       VariableGroup & vg(_variable_groups.back());
 
       // get a pointer to their subdomain restriction, if any.
       const std::set<subdomain_id_type> * const
         their_active_subdomains (vg.implicitly_active() ?
                                  nullptr : &vg.active_subdomains());
 
       // Different types?
       if (vg.type() != type)
         should_be_in_vg = false;
 
       // they are restricted, we aren't?
       if (their_active_subdomains && !active_subdomains)
         should_be_in_vg = false;
 
       // they aren't restricted, we are?
       if (!their_active_subdomains && active_subdomains)
         should_be_in_vg = false;
 
       if (their_active_subdomains && active_subdomains)
         // restricted to different sets?
         if (*their_active_subdomains != *active_subdomains)
           should_be_in_vg = false;
 
       // OK, after all that, append the variable to the vg if none of the conditions
       // were violated
       if (should_be_in_vg)
         {
           const unsigned short curr_n_vars = cast_int<unsigned short>
             (this->n_vars());
 
           vg.append (var);
 
           _variables.push_back(vg(vg.n_variables()-1));
           _variable_numbers[var] = curr_n_vars;
           return curr_n_vars;
         }
     }
 
   // otherwise, fall back to adding a single variable group
   return this->add_variables (std::vector<std::string>(1, var),
                               type,
                               active_subdomains);
 }

◆ add_variable() [2/2]

unsigned int libMesh::System::add_variable	(	const std::string &	var,
		const Order	order = `FIRST`,
		const FEFamily	family = `LAGRANGE`,
		const std::set< subdomain_id_type > *const	active_subdomains = `nullptr`
	)

Adds the variable var to the list of variables for this system. Same as before, but assumes LAGRANGE as default value for FEType.family.

Definition at line 1159 of file system.C.

References add_variable().

 {
   return this->add_variable(var,
                             FEType(order, family),
                             active_subdomains);
 }

◆ add_variables() [1/2]

unsigned int libMesh::System::add_variables	(	const std::vector< std::string > &	vars,
		const FEType &	type,
		const std::set< subdomain_id_type > *const	active_subdomains = `nullptr`
	)

Adds the variable var to the list of variables for this system.

Returns: The index number for the new variable.

Definition at line 1171 of file system.C.

References _variable_groups, _variable_numbers, _variables, is_initialized(), n_components(), n_vars(), number(), variable_name(), and variable_type().

Referenced by add_variable(), and add_variables().

 {
   libmesh_assert(!this->is_initialized());
 
   // Make sure the variable isn't there already
   // or if it is, that it's the type we want
   for (std::size_t ov=0; ov<vars.size(); ov++)
     for (unsigned int v=0; v<this->n_vars(); v++)
       if (this->variable_name(v) == vars[ov])
         {
           if (this->variable_type(v) == type)
             return _variables[v].number();
 
           libmesh_error_msg("ERROR: incompatible variable " << vars[ov] << " has already been added for this system!");
         }
 
   const unsigned short curr_n_vars = cast_int<unsigned short>
     (this->n_vars());
 
   const unsigned int next_first_component = this->n_components();
 
   // Add the variable group to the list
   _variable_groups.push_back((active_subdomains == nullptr) ?
                              VariableGroup(this, vars, curr_n_vars,
                                            next_first_component, type) :
                              VariableGroup(this, vars, curr_n_vars,
                                            next_first_component, type, *active_subdomains));
 
   const VariableGroup & vg (_variable_groups.back());
 
   // Add each component of the group individually
   for (auto v : IntRange<unsigned int>(0, vars.size()))
     {
       _variables.push_back (vg(v));
       _variable_numbers[vars[v]] = cast_int<unsigned short>
         (curr_n_vars+v);
     }
 
   libmesh_assert_equal_to ((curr_n_vars+vars.size()), this->n_vars());
 
   // BSK - Defer this now to System::init_data() so we can detect
   // VariableGroups 12/28/2012
   // // Add the variable group to the _dof_map
   // _dof_map->add_variable_group (vg);
 
   // Return the number of the new variable
   return cast_int<unsigned int>(curr_n_vars+vars.size()-1);
 }

◆ add_variables() [2/2]

unsigned int libMesh::System::add_variables	(	const std::vector< std::string > &	vars,
		const Order	order = `FIRST`,
		const FEFamily	family = `LAGRANGE`,
		const std::set< subdomain_id_type > *const	active_subdomains = `nullptr`
	)

Adds the variable var to the list of variables for this system. Same as before, but assumes LAGRANGE as default value for FEType.family.

Definition at line 1224 of file system.C.

References add_variables().

 {
   return this->add_variables(vars,
                              FEType(order, family),
                              active_subdomains);
 }

◆ add_vector()

NumericVector< Number > & libMesh::System::add_vector	(	const std::string &	vec_name,
		const bool	projections = `true`,
		const ParallelType	type = `PARALLEL`
	)

Adds the additional vector vec_name to this system. All the additional vectors are similarly distributed, like the solution, and initialized to zero.

By default vectors added by add_vector are projected to changed grids by reinit(). To zero them instead (more efficient), pass "false" as the second argument

Definition at line 661 of file system.C.

References _dof_map, _is_initialized, _vector_is_adjoint, _vector_projections, _vector_types, _vectors, libMesh::NumericVector< T >::build(), libMesh::ParallelObject::comm(), libMesh::GHOSTED, have_vector(), libMesh::NumericVector< T >::init(), n_dofs(), and n_local_dofs().

Referenced by add_adjoint_rhs(), add_adjoint_solution(), add_sensitivity_rhs(), add_sensitivity_solution(), libMesh::ExplicitSystem::add_system_rhs(), add_weighted_sensitivity_adjoint_solution(), add_weighted_sensitivity_solution(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::SecondOrderUnsteadySolver::init(), libMesh::UnsteadySolver::init(), libMesh::OptimizationSystem::init_data(), libMesh::ContinuationSystem::init_data(), libMesh::NewmarkSystem::NewmarkSystem(), read_header(), libMesh::FrequencySystem::set_frequencies(), libMesh::FrequencySystem::set_frequencies_by_range(), and libMesh::FrequencySystem::set_frequencies_by_steps().

 {
   // Return the vector if it is already there.
   if (this->have_vector(vec_name))
     return *(_vectors[vec_name]);
 
   // Otherwise build the vector
   NumericVector<Number> * buf = NumericVector<Number>::build(this->comm()).release();
   _vectors.insert (std::make_pair (vec_name, buf));
   _vector_projections.insert (std::make_pair (vec_name, projections));
 
   _vector_types.insert (std::make_pair (vec_name, type));
 
   // Vectors are primal by default
   _vector_is_adjoint.insert (std::make_pair (vec_name, -1));
 
   // Initialize it if necessary
   if (_is_initialized)
     {
       if (type == GHOSTED)
         {
 #ifdef LIBMESH_ENABLE_GHOSTED
           buf->init (this->n_dofs(), this->n_local_dofs(),
                      _dof_map->get_send_list(), false,
                      GHOSTED);
 #else
           libmesh_error_msg("Cannot initialize ghosted vectors when they are not enabled.");
 #endif
         }
       else
         buf->init (this->n_dofs(), this->n_local_dofs(), false, type);
     }
 
   return *buf;
 }

◆ add_weighted_sensitivity_adjoint_solution()

NumericVector< Number > & libMesh::System::add_weighted_sensitivity_adjoint_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's weighted sensitivity adjoint solution vectors, by default the one corresponding to the first qoi. Creates the vector if it doesn't already exist.

Definition at line 989 of file system.C.

References add_vector(), and set_vector_as_adjoint().

Referenced by libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "weighted_sensitivity_adjoint_solution" << i;
 
   NumericVector<Number> & returnval = this->add_vector(adjoint_name.str());
   this->set_vector_as_adjoint(adjoint_name.str(), i);
   return returnval;
 }

◆ add_weighted_sensitivity_solution()

NumericVector< Number > & libMesh::System::add_weighted_sensitivity_solution ( )

Returns: A reference to the solution of the last weighted sensitivity solve Creates the vector if it doesn't already exist.

Definition at line 936 of file system.C.

References add_vector().

Referenced by libMesh::ImplicitSystem::weighted_sensitivity_solve().

 {
   return this->add_vector("weighted_sensitivity_solution");
 }

◆ adjoint_qoi_parameter_sensitivity()

void libMesh::System::adjoint_qoi_parameter_sensitivity	(	const QoISet &	qoi_indices,
		const ParameterVector &	parameters,
		SensitivityData &	sensitivities
	)

inlinevirtual

Solves for parameter sensitivities using the adjoint method.

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2316 of file system.h.

Referenced by qoi_parameter_sensitivity().

 {
   libmesh_not_implemented();
 }

◆ adjoint_solve()

std::pair< unsigned int, Real > libMesh::System::adjoint_solve ( const QoISet & qoi_indices = QoISet() )

inlinevirtual

Solves the adjoint system, for the specified qoi indices, or for every qoi if qoi_indices is nullptr. Must be overridden in derived systems.

Returns: A pair with the total number of linear iterations performed and the (sum of the) final residual norms

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem, and libMesh::DifferentiableSystem.

Definition at line 2300 of file system.h.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::AdjointRefinementEstimator::estimate_error(), and libMesh::AdjointResidualErrorEstimator::estimate_error().

 {
   libmesh_not_implemented();
 }

◆ assemble()

void libMesh::System::assemble ( )

virtual

Prepares matrix and _dof_map for matrix assembly. Does not actually assemble anything. For matrix assembly, use the assemble() in derived classes. Should be overridden in derived classes.

Reimplemented in libMesh::LinearImplicitSystem, libMesh::EigenSystem, libMesh::DifferentiableSystem, libMesh::ImplicitSystem, libMesh::FrequencySystem, and libMesh::NewmarkSystem.

Definition at line 462 of file system.C.

References user_assembly().

Referenced by libMesh::ImplicitSystem::assemble(), libMesh::EigenSystem::assemble(), and libMesh::ExplicitSystem::solve().

 {
   // Log how long the user's assembly code takes
   LOG_SCOPE("assemble()", "System");
 
   // Call the user-specified assembly function
   this->user_assembly();
 }

◆ assemble_qoi()

void libMesh::System::assemble_qoi ( const QoISet & qoi_indices = QoISet() )

virtual

Calls user qoi function. Can be overridden in derived classes.

Reimplemented in libMesh::FEMSystem, and libMesh::ExplicitSystem.

Definition at line 473 of file system.C.

References user_QOI().

Referenced by libMesh::ExplicitSystem::assemble_qoi().

 {
   // Log how long the user's assembly code takes
   LOG_SCOPE("assemble_qoi()", "System");
 
   // Call the user-specified quantity of interest function
   this->user_QOI(qoi_indices);
 }

◆ assemble_qoi_derivative()

void libMesh::System::assemble_qoi_derivative	(	const QoISet &	qoi_indices = `QoISet()`,
		bool	include_liftfunc = `true`,
		bool	apply_constraints = `true`
	)

virtual

Calls user qoi derivative function. Can be overridden in derived classes.

Reimplemented in libMesh::FEMSystem, and libMesh::ExplicitSystem.

Definition at line 484 of file system.C.

References user_QOI_derivative().

Referenced by libMesh::ExplicitSystem::assemble_qoi_derivative().

 {
   // Log how long the user's assembly code takes
   LOG_SCOPE("assemble_qoi_derivative()", "System");
 
   // Call the user-specified quantity of interest function
   this->user_QOI_derivative(qoi_indices, include_liftfunc,
                             apply_constraints);
 }

◆ assemble_residual_derivatives()

void libMesh::System::assemble_residual_derivatives ( const ParameterVector & parameters )

inlinevirtual

Calls residual parameter derivative function.

Library subclasses use finite differences by default.

This should assemble the sensitivity rhs vectors to hold -(partial R / partial p_i), making them ready to solve the forward sensitivity equation.

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2269 of file system.h.

 {
   libmesh_not_implemented();
 }

◆ attach_assemble_function()

void libMesh::System::attach_assemble_function ( void fptrEquationSystems &es, const std::string &name )

Register a user function to use in assembling the system matrix and RHS.

Definition at line 1777 of file system.C.

References _assemble_system_function, _assemble_system_object, and libMesh::out.

 {
   libmesh_assert(fptr);
 
   if (_assemble_system_object != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both assembly function and object!"
                    << std::endl;
 
       _assemble_system_object = nullptr;
     }
 
   _assemble_system_function = fptr;
 }

◆ attach_assemble_object()

void libMesh::System::attach_assemble_object ( System::Assembly & assemble_in )

Register a user object to use in assembling the system matrix and RHS.

Definition at line 1796 of file system.C.

References _assemble_system_function, _assemble_system_object, and libMesh::out.

 {
   if (_assemble_system_function != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both assembly object and function!"
                    << std::endl;
 
       _assemble_system_function = nullptr;
     }
 
   _assemble_system_object = &assemble_in;
 }

◆ attach_constraint_function()

void libMesh::System::attach_constraint_function ( void fptrEquationSystems &es, const std::string &name )

Register a user function for imposing constraints.

Definition at line 1812 of file system.C.

References _constrain_system_function, _constrain_system_object, and libMesh::out.

 {
   libmesh_assert(fptr);
 
   if (_constrain_system_object != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both constraint function and object!"
                    << std::endl;
 
       _constrain_system_object = nullptr;
     }
 
   _constrain_system_function = fptr;
 }

◆ attach_constraint_object()

void libMesh::System::attach_constraint_object ( System::Constraint & constrain )

Register a user object for imposing constraints.

Definition at line 1831 of file system.C.

References _constrain_system_function, _constrain_system_object, and libMesh::out.

 {
   if (_constrain_system_function != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both constraint object and function!"
                    << std::endl;
 
       _constrain_system_function = nullptr;
     }
 
   _constrain_system_object = &constrain;
 }

◆ attach_init_function()

void libMesh::System::attach_init_function ( void fptrEquationSystems &es, const std::string &name )

Register a user function to use in initializing the system.

Definition at line 1742 of file system.C.

References _init_system_function, _init_system_object, and libMesh::out.

 {
   libmesh_assert(fptr);
 
   if (_init_system_object != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both initialization function and object!"
                    << std::endl;
 
       _init_system_object = nullptr;
     }
 
   _init_system_function = fptr;
 }

◆ attach_init_object()

void libMesh::System::attach_init_object ( System::Initialization & init_in )

Register a user class to use to initialize the system.

Note: This is exclusive with the attach_init_function.

Definition at line 1761 of file system.C.

References _init_system_function, _init_system_object, and libMesh::out.

 {
   if (_init_system_function != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both initialization object and function!"
                    << std::endl;
 
       _init_system_function = nullptr;
     }
 
   _init_system_object = &init_in;
 }

◆ attach_QOI_derivative()

void libMesh::System::attach_QOI_derivative ( void fptrEquationSystems &es, const std::string &name, const QoISet &qoi_indices, bool include_liftfunc, bool apply_constraints )

Register a user function for evaluating derivatives of a quantity of interest with respect to test functions, whose values should be placed in System::rhs

Definition at line 1883 of file system.C.

References _qoi_evaluate_derivative_function, _qoi_evaluate_derivative_object, and libMesh::out.

 {
   libmesh_assert(fptr);
 
   if (_qoi_evaluate_derivative_object != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both QOI derivative function and object!"
                    << std::endl;
 
       _qoi_evaluate_derivative_object = nullptr;
     }
 
   _qoi_evaluate_derivative_function = fptr;
 }

◆ attach_QOI_derivative_object()

void libMesh::System::attach_QOI_derivative_object ( QOIDerivative & qoi_derivative )

Register a user object for evaluating derivatives of a quantity of interest with respect to test functions, whose values should be placed in System::rhs

Definition at line 1902 of file system.C.

References _qoi_evaluate_derivative_function, _qoi_evaluate_derivative_object, and libMesh::out.

 {
   if (_qoi_evaluate_derivative_function != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both QOI derivative object and function!"
                    << std::endl;
 
       _qoi_evaluate_derivative_function = nullptr;
     }
 
   _qoi_evaluate_derivative_object = &qoi_derivative;
 }

◆ attach_QOI_function()

void libMesh::System::attach_QOI_function ( void fptrEquationSystems &es, const std::string &name, const QoISet &qoi_indices )

Register a user function for evaluating the quantities of interest, whose values should be placed in System::qoi

Definition at line 1847 of file system.C.

References _qoi_evaluate_function, _qoi_evaluate_object, and libMesh::out.

 {
   libmesh_assert(fptr);
 
   if (_qoi_evaluate_object != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both QOI function and object!"
                    << std::endl;
 
       _qoi_evaluate_object = nullptr;
     }
 
   _qoi_evaluate_function = fptr;
 }

◆ attach_QOI_object()

void libMesh::System::attach_QOI_object ( QOI & qoi )

Register a user object for evaluating the quantities of interest, whose values should be placed in System::qoi

Definition at line 1867 of file system.C.

References _qoi_evaluate_function, _qoi_evaluate_object, and libMesh::out.

 {
   if (_qoi_evaluate_function != nullptr)
     {
       libmesh_here();
       libMesh::out << "WARNING:  Cannot specify both QOI object and function!"
                    << std::endl;
 
       _qoi_evaluate_function = nullptr;
     }
 
   _qoi_evaluate_object = &qoi_in;
 }

◆ boundary_project_solution() [1/2]

void libMesh::System::boundary_project_solution	(	const std::set< boundary_id_type > &	b,
		const std::vector< unsigned int > &	variables,
		FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`
	)

Projects arbitrary boundary functions onto a vector of degree of freedom values for the current system. Only degrees of freedom which affect the function's trace on a boundary in the set b are affected. Only degrees of freedom associated with the variables listed in the vector variables are projected. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

This method projects an arbitrary boundary function onto the solution via L2 projections and nodal interpolations on each element.

Definition at line 985 of file system_projection.C.

 {
   this->boundary_project_vector(b, variables, *solution, f, g);
 
   solution->localize(*current_local_solution);
 }

◆ boundary_project_solution() [2/2]

void libMesh::System::boundary_project_solution	(	const std::set< boundary_id_type > &	b,
		const std::vector< unsigned int > &	variables,
		ValueFunctionPointer	fptr,
		GradientFunctionPointer	gptr,
		const Parameters &	parameters
	)

Projects arbitrary boundary functions onto a vector of degree of freedom values for the current system. Only degrees of freedom which affect the function's trace on a boundary in the set b are affected. Only degrees of freedom associated with the variables listed in the vector variables are projected. The function value fptr and its gradient gptr are represented by function pointers. A gradient gptr is only required/used for projecting onto finite element spaces with continuous derivatives.

This method projects components of an arbitrary boundary function onto the solution via L2 projections and nodal interpolations on each element.

Definition at line 968 of file system_projection.C.

 {
   WrappedFunction<Number> f(*this, fptr, &parameters);
   WrappedFunction<Gradient> g(*this, gptr, &parameters);
   this->boundary_project_solution(b, variables, &f, &g);
 }

◆ boundary_project_vector() [1/2]

void libMesh::System::boundary_project_vector	(	const std::set< boundary_id_type > &	b,
		const std::vector< unsigned int > &	variables,
		NumericVector< Number > &	new_vector,
		FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`,
		int	is_adjoint = `-1`
	)		const

Projects arbitrary boundary functions onto a vector of degree of freedom values for the current system. Only degrees of freedom which affect the function's trace on a boundary in the set b are affected. Only degrees of freedom associated with the variables listed in the vector variables are projected. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

This method projects an arbitrary function via L2 projections and nodal interpolations on each element.

Definition at line 1021 of file system_projection.C.

References libMesh::NumericVector< T >::close(), and libMesh::Threads::parallel_for().

 {
   LOG_SCOPE ("boundary_project_vector()", "System");
 
   Threads::parallel_for
     (ConstElemRange (this->get_mesh().active_local_elements_begin(),
                      this->get_mesh().active_local_elements_end() ),
      BoundaryProjectSolution(b, variables, *this, f, g,
                              this->get_equation_systems().parameters,
                              new_vector)
      );
 
   // We don't do SCALAR dofs when just projecting the boundary, so
   // we're done here.
 
   new_vector.close();
 
 #ifdef LIBMESH_ENABLE_CONSTRAINTS
   if (is_adjoint == -1)
     this->get_dof_map().enforce_constraints_exactly(*this, &new_vector);
   else if (is_adjoint >= 0)
     this->get_dof_map().enforce_adjoint_constraints_exactly(new_vector,
                                                             is_adjoint);
 #endif
 }

◆ boundary_project_vector() [2/2]

void libMesh::System::boundary_project_vector	(	const std::set< boundary_id_type > &	b,
		const std::vector< unsigned int > &	variables,
		ValueFunctionPointer	fptr,
		GradientFunctionPointer	gptr,
		const Parameters &	parameters,
		NumericVector< Number > &	new_vector,
		int	is_adjoint = `-1`
	)		const

Projects arbitrary boundary functions onto a vector of degree of freedom values for the current system. Only degrees of freedom which affect the function's trace on a boundary in the set b are affected. Only degrees of freedom associated with the variables listed in the vector variables are projected. The function value fptr and its gradient gptr are represented by function pointers. A gradient gptr is only required/used for projecting onto finite element spaces with continuous derivatives.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

This method projects an arbitrary boundary function via L2 projections and nodal interpolations on each element.

Definition at line 1003 of file system_projection.C.

 {
   WrappedFunction<Number> f(*this, fptr, &parameters);
   WrappedFunction<Gradient> g(*this, gptr, &parameters);
   this->boundary_project_vector(b, variables, new_vector, &f, &g,
                                 is_adjoint);
 }

◆ calculate_norm() [1/2]

Real libMesh::System::calculate_norm	(	const NumericVector< Number > &	v,
		unsigned int	var,
		FEMNormType	norm_type,
		std::set< unsigned int > *	skip_dimensions = `nullptr`
	)		const

Returns: A norm of variable var in the vector v, in the specified norm (e.g. L2, L_INF, H1)

Definition at line 1378 of file system.C.

References libMesh::DISCRETE_L1, libMesh::DISCRETE_L2, libMesh::DISCRETE_L_INF, discrete_var_norm(), libMesh::L2, n_vars(), and libMesh::Real.

Referenced by libMesh::AdaptiveTimeSolver::calculate_norm(), and libMesh::UnsteadySolver::du().

 {
   //short circuit to save time
   if (norm_type == DISCRETE_L1 ||
       norm_type == DISCRETE_L2 ||
       norm_type == DISCRETE_L_INF)
     return discrete_var_norm(v,var,norm_type);
 
   // Not a discrete norm
   std::vector<FEMNormType> norms(this->n_vars(), L2);
   std::vector<Real> weights(this->n_vars(), 0.0);
   norms[var] = norm_type;
   weights[var] = 1.0;
   Real val = this->calculate_norm(v, SystemNorm(norms, weights), skip_dimensions);
   return val;
 }

◆ calculate_norm() [2/2]

Real libMesh::System::calculate_norm	(	const NumericVector< Number > &	v,
		const SystemNorm &	norm,
		std::set< unsigned int > *	skip_dimensions = `nullptr`
	)		const

Returns: A norm of the vector v, using component_norm and component_scale to choose and weight the norms of each variable.

Definition at line 1400 of file system.C.

References _dof_map, _mesh, std::abs(), libMesh::TypeVector< T >::add_scaled(), libMesh::TypeTensor< T >::add_scaled(), libMesh::FEGenericBase< OutputType >::build(), libMesh::NumericVector< T >::build(), libMesh::ParallelObject::comm(), libMesh::FEType::default_quadrature_rule(), libMesh::DISCRETE_L1, libMesh::DISCRETE_L2, libMesh::DISCRETE_L_INF, discrete_var_norm(), libMesh::DofMap::dof_indices(), libMesh::MeshBase::elem_dimensions(), libMesh::FEGenericBase< OutputType >::get_d2phi(), get_dof_map(), libMesh::FEGenericBase< OutputType >::get_dphi(), libMesh::FEAbstract::get_JxW(), get_mesh(), libMesh::FEGenericBase< OutputType >::get_phi(), libMesh::H1, libMesh::H1_SEMINORM, libMesh::H2, libMesh::H2_SEMINORM, libMesh::SystemNorm::is_discrete(), libMesh::L1, libMesh::NumericVector< T >::l1_norm(), libMesh::L2, libMesh::NumericVector< T >::l2_norm(), libMesh::L_INF, libMesh::NumericVector< T >::linfty_norm(), libMesh::NumericVector< T >::localize(), std::max(), libMesh::Parallel::Communicator::max(), libMesh::QBase::n_points(), n_vars(), libMesh::TypeVector< T >::norm(), libMesh::TypeTensor< T >::norm(), libMesh::TensorTools::norm_sq(), libMesh::TypeVector< T >::norm_sq(), libMesh::TypeTensor< T >::norm_sq(), libMesh::Real, libMesh::FEAbstract::reinit(), libMesh::SERIAL, libMesh::NumericVector< T >::size(), libMesh::Parallel::Communicator::sum(), libMesh::SystemNorm::type(), libMesh::DofMap::variable_type(), libMesh::W1_INF_SEMINORM, libMesh::W2_INF_SEMINORM, libMesh::SystemNorm::weight(), and libMesh::SystemNorm::weight_sq().

 {
   // This function must be run on all processors at once
   parallel_object_only();
 
   LOG_SCOPE ("calculate_norm()", "System");
 
   // Zero the norm before summation
   Real v_norm = 0.;
 
   if (norm.is_discrete())
     {
       //Check to see if all weights are 1.0 and all types are equal
       FEMNormType norm_type0 = norm.type(0);
       unsigned int check_var = 0;
       for (; check_var != this->n_vars(); ++check_var)
         if ((norm.weight(check_var) != 1.0) || (norm.type(check_var) != norm_type0))
           break;
 
       //All weights were 1.0 so just do the full vector discrete norm
       if (check_var == this->n_vars())
         {
           if (norm_type0 == DISCRETE_L1)
             return v.l1_norm();
           if (norm_type0 == DISCRETE_L2)
             return v.l2_norm();
           if (norm_type0 == DISCRETE_L_INF)
             return v.linfty_norm();
           else
             libmesh_error_msg("Invalid norm_type0 = " << norm_type0);
         }
 
       for (unsigned int var=0; var != this->n_vars(); ++var)
         {
           // Skip any variables we don't need to integrate
           if (norm.weight(var) == 0.0)
             continue;
 
           v_norm += norm.weight(var) * discrete_var_norm(v, var, norm.type(var));
         }
 
       return v_norm;
     }
 
   // Localize the potentially parallel vector
   std::unique_ptr<NumericVector<Number>> local_v = NumericVector<Number>::build(this->comm());
   local_v->init(v.size(), true, SERIAL);
   v.localize (*local_v, _dof_map->get_send_list());
 
   // I'm not sure how best to mix Hilbert norms on some variables (for
   // which we'll want to square then sum then square root) with norms
   // like L_inf (for which we'll just want to take an absolute value
   // and then sum).
   bool using_hilbert_norm = true,
     using_nonhilbert_norm = true;
 
   // Loop over all variables
   for (unsigned int var=0; var != this->n_vars(); ++var)
     {
       // Skip any variables we don't need to integrate
       Real norm_weight_sq = norm.weight_sq(var);
       if (norm_weight_sq == 0.0)
         continue;
       Real norm_weight = norm.weight(var);
 
       // Check for unimplemented norms (rather than just returning 0).
       FEMNormType norm_type = norm.type(var);
       if ((norm_type==H1) ||
           (norm_type==H2) ||
           (norm_type==L2) ||
           (norm_type==H1_SEMINORM) ||
           (norm_type==H2_SEMINORM))
         {
           if (!using_hilbert_norm)
             libmesh_not_implemented();
           using_nonhilbert_norm = false;
         }
       else if ((norm_type==L1) ||
                (norm_type==L_INF) ||
                (norm_type==W1_INF_SEMINORM) ||
                (norm_type==W2_INF_SEMINORM))
         {
           if (!using_nonhilbert_norm)
             libmesh_not_implemented();
           using_hilbert_norm = false;
         }
       else
         libmesh_not_implemented();
 
       const FEType & fe_type = this->get_dof_map().variable_type(var);
 
       // Allow space for dims 0-3, even if we don't use them all
       std::vector<std::unique_ptr<FEBase>> fe_ptrs(4);
       std::vector<std::unique_ptr<QBase>> q_rules(4);
 
       const std::set<unsigned char> & elem_dims = _mesh.elem_dimensions();
 
       // Prepare finite elements for each dimension present in the mesh
       for (const auto & dim : elem_dims)
         {
           if (skip_dimensions && skip_dimensions->find(dim) != skip_dimensions->end())
             continue;
 
           // Construct quadrature and finite element objects
           q_rules[dim] = fe_type.default_quadrature_rule (dim);
           fe_ptrs[dim] = FEBase::build(dim, fe_type);
 
           // Attach quadrature rule to FE object
           fe_ptrs[dim]->attach_quadrature_rule (q_rules[dim].get());
         }
 
       std::vector<dof_id_type> dof_indices;
 
       // Begin the loop over the elements
       for (const auto & elem : this->get_mesh().active_local_element_ptr_range())
         {
           const unsigned int dim = elem->dim();
 
 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
 
           // One way for implementing this would be to exchange the fe with the FEInterface- class.
           // However, it needs to be discussed whether integral-norms make sense for infinite elements.
           // or in which sense they could make sense.
           if (elem->infinite() )
             libmesh_not_implemented();
 
 #endif
 
           if (skip_dimensions && skip_dimensions->find(dim) != skip_dimensions->end())
             continue;
 
           FEBase * fe = fe_ptrs[dim].get();
           QBase * qrule = q_rules[dim].get();
           libmesh_assert(fe);
           libmesh_assert(qrule);
 
           const std::vector<Real> &               JxW = fe->get_JxW();
           const std::vector<std::vector<Real>> * phi = nullptr;
           if (norm_type == H1 ||
               norm_type == H2 ||
               norm_type == L2 ||
               norm_type == L1 ||
               norm_type == L_INF)
             phi = &(fe->get_phi());
 
           const std::vector<std::vector<RealGradient>> * dphi = nullptr;
           if (norm_type == H1 ||
               norm_type == H2 ||
               norm_type == H1_SEMINORM ||
               norm_type == W1_INF_SEMINORM)
             dphi = &(fe->get_dphi());
 #ifdef LIBMESH_ENABLE_SECOND_DERIVATIVES
           const std::vector<std::vector<RealTensor>> *   d2phi = nullptr;
           if (norm_type == H2 ||
               norm_type == H2_SEMINORM ||
               norm_type == W2_INF_SEMINORM)
             d2phi = &(fe->get_d2phi());
 #endif
 
           fe->reinit (elem);
 
           this->get_dof_map().dof_indices (elem, dof_indices, var);
 
           const unsigned int n_qp = qrule->n_points();
 
           const unsigned int n_sf = cast_int<unsigned int>
             (dof_indices.size());
 
           // Begin the loop over the Quadrature points.
           for (unsigned int qp=0; qp<n_qp; qp++)
             {
               if (norm_type == L1)
                 {
                   Number u_h = 0.;
                   for (unsigned int i=0; i != n_sf; ++i)
                     u_h += (*phi)[i][qp] * (*local_v)(dof_indices[i]);
                   v_norm += norm_weight *
                     JxW[qp] * std::abs(u_h);
                 }
 
               if (norm_type == L_INF)
                 {
                   Number u_h = 0.;
                   for (unsigned int i=0; i != n_sf; ++i)
                     u_h += (*phi)[i][qp] * (*local_v)(dof_indices[i]);
                   v_norm = std::max(v_norm, norm_weight * std::abs(u_h));
                 }
 
               if (norm_type == H1 ||
                   norm_type == H2 ||
                   norm_type == L2)
                 {
                   Number u_h = 0.;
                   for (unsigned int i=0; i != n_sf; ++i)
                     u_h += (*phi)[i][qp] * (*local_v)(dof_indices[i]);
                   v_norm += norm_weight_sq *
                     JxW[qp] * TensorTools::norm_sq(u_h);
                 }
 
               if (norm_type == H1 ||
                   norm_type == H2 ||
                   norm_type == H1_SEMINORM)
                 {
                   Gradient grad_u_h;
                   for (unsigned int i=0; i != n_sf; ++i)
                     grad_u_h.add_scaled((*dphi)[i][qp], (*local_v)(dof_indices[i]));
                   v_norm += norm_weight_sq *
                     JxW[qp] * grad_u_h.norm_sq();
                 }
 
               if (norm_type == W1_INF_SEMINORM)
                 {
                   Gradient grad_u_h;
                   for (unsigned int i=0; i != n_sf; ++i)
                     grad_u_h.add_scaled((*dphi)[i][qp], (*local_v)(dof_indices[i]));
                   v_norm = std::max(v_norm, norm_weight * grad_u_h.norm());
                 }
 
 #ifdef LIBMESH_ENABLE_SECOND_DERIVATIVES
               if (norm_type == H2 ||
                   norm_type == H2_SEMINORM)
                 {
                   Tensor hess_u_h;
                   for (unsigned int i=0; i != n_sf; ++i)
                     hess_u_h.add_scaled((*d2phi)[i][qp], (*local_v)(dof_indices[i]));
                   v_norm += norm_weight_sq *
                     JxW[qp] * hess_u_h.norm_sq();
                 }
 
               if (norm_type == W2_INF_SEMINORM)
                 {
                   Tensor hess_u_h;
                   for (unsigned int i=0; i != n_sf; ++i)
                     hess_u_h.add_scaled((*d2phi)[i][qp], (*local_v)(dof_indices[i]));
                   v_norm = std::max(v_norm, norm_weight * hess_u_h.norm());
                 }
 #endif
             }
         }
     }
 
   if (using_hilbert_norm)
     {
       this->comm().sum(v_norm);
       v_norm = std::sqrt(v_norm);
     }
   else
     {
       this->comm().max(v_norm);
     }
 
   return v_norm;
 }

◆ clear()

void libMesh::System::clear ( )

virtual

Clear all the data structures associated with the system.

Reimplemented in libMesh::OptimizationSystem, libMesh::NonlinearImplicitSystem, libMesh::RBConstruction, libMesh::ImplicitSystem, libMesh::LinearImplicitSystem, libMesh::EigenSystem, libMesh::TransientSystem< RBConstruction >, libMesh::DifferentiableSystem, libMesh::ContinuationSystem, libMesh::FrequencySystem, libMesh::RBConstructionBase< LinearImplicitSystem >, libMesh::RBConstructionBase< CondensedEigenSystem >, libMesh::RBSCMConstruction, libMesh::RBEIMConstruction, libMesh::ExplicitSystem, libMesh::TransientRBConstruction, and libMesh::NewmarkSystem.

Definition at line 205 of file system.C.

References _dof_map, _is_initialized, _variable_numbers, _variables, _vector_is_adjoint, _vector_projections, _vector_types, _vectors, current_local_solution, and solution.

Referenced by libMesh::ExplicitSystem::clear(), libMesh::EigenSystem::clear(), read_header(), and ~System().

 {
   _variables.clear();
 
   _variable_numbers.clear();
 
   _dof_map->clear ();
 
   solution->clear ();
 
   current_local_solution->clear ();
 
   // clear any user-added vectors
   {
     for (auto & pr : _vectors)
       {
         pr.second->clear ();
         delete pr.second;
         pr.second = nullptr;
       }
 
     _vectors.clear();
     _vector_projections.clear();
     _vector_is_adjoint.clear();
     _vector_types.clear();
     _is_initialized = false;
   }
 
 }

◆ comm()

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

inlineinherited

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

Definition at line 89 of file parallel_object.h.

References libMesh::ParallelObject::_communicator.

90 { return _communicator; }

libMesh::ParallelObject::_communicator

const Parallel::Communicator & _communicator

Definition: parallel_object.h:107

◆ compare()

bool libMesh::System::compare	(	const System &	other_system,
		const Real	threshold,
		const bool	verbose
	)		const

virtual

Returns: true when the other system contains identical data, up to the given threshold. Outputs some diagnostic info when verbose is set.

Definition at line 514 of file system.C.

References _is_initialized, _sys_name, _vectors, get_vector(), n_vectors(), name(), libMesh::out, and solution.

Referenced by libMesh::EquationSystems::compare().

 {
   // we do not care for matrices, but for vectors
   libmesh_assert (_is_initialized);
   libmesh_assert (other_system._is_initialized);
 
   if (verbose)
     {
       libMesh::out << "  Systems \"" << _sys_name << "\"" << std::endl;
       libMesh::out << "   comparing matrices not supported." << std::endl;
       libMesh::out << "   comparing names...";
     }
 
   // compare the name: 0 means identical
   const int name_result = _sys_name.compare(other_system.name());
   if (verbose)
     {
       if (name_result == 0)
         libMesh::out << " identical." << std::endl;
       else
         libMesh::out << "  names not identical." << std::endl;
       libMesh::out << "   comparing solution vector...";
     }
 
 
   // compare the solution: -1 means identical
   const int solu_result = solution->compare (*other_system.solution.get(),
                                              threshold);
 
   if (verbose)
     {
       if (solu_result == -1)
         libMesh::out << " identical up to threshold." << std::endl;
       else
         libMesh::out << "  first difference occurred at index = "
                      << solu_result << "." << std::endl;
     }
 
 
   // safety check, whether we handle at least the same number
   // of vectors
   std::vector<int> ov_result;
 
   if (this->n_vectors() != other_system.n_vectors())
     {
       if (verbose)
         {
           libMesh::out << "   Fatal difference. This system handles "
                        << this->n_vectors() << " add'l vectors," << std::endl
                        << "   while the other system handles "
                        << other_system.n_vectors()
                        << " add'l vectors." << std::endl
                        << "   Aborting comparison." << std::endl;
         }
       return false;
     }
   else if (this->n_vectors() == 0)
     {
       // there are no additional vectors...
       ov_result.clear ();
     }
   else
     {
       // compare other vectors
       for (auto & pr : _vectors)
         {
           if (verbose)
             libMesh::out << "   comparing vector \""
                          << pr.first << "\" ...";
 
           // assume they have the same name
           const NumericVector<Number> & other_system_vector =
             other_system.get_vector(pr.first);
 
           ov_result.push_back(pr.second->compare (other_system_vector,
                                                   threshold));
 
           if (verbose)
             {
               if (ov_result[ov_result.size()-1] == -1)
                 libMesh::out << " identical up to threshold." << std::endl;
               else
                 libMesh::out << " first difference occurred at" << std::endl
                              << "   index = " << ov_result[ov_result.size()-1] << "." << std::endl;
             }
         }
     } // finished comparing additional vectors
 
 
   bool overall_result;
 
   // sum up the results
   if ((name_result==0) && (solu_result==-1))
     {
       if (ov_result.size()==0)
         overall_result = true;
       else
         {
           bool ov_identical;
           unsigned int n    = 0;
           do
             {
               ov_identical = (ov_result[n]==-1);
               n++;
             }
           while (ov_identical && n<ov_result.size());
           overall_result = ov_identical;
         }
     }
   else
     overall_result = false;
 
   if (verbose)
     {
       libMesh::out << "   finished comparisons, ";
       if (overall_result)
         libMesh::out << "found no differences." << std::endl << std::endl;
       else
         libMesh::out << "found differences." << std::endl << std::endl;
     }
 
   return overall_result;
 }

◆ current_solution()

Number libMesh::System::current_solution ( const dof_id_type global_dof_number ) const

Returns: The current solution for the specified global DOF.

Definition at line 194 of file system.C.

References _dof_map, and current_local_solution.

Referenced by libMesh::ExactSolution::_compute_error(), libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::HPCoarsenTest::add_projection(), libMesh::ExactErrorEstimator::estimate_error(), libMesh::WeightedPatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::PatchRecoveryErrorEstimator::EstimateError::operator()(), point_gradient(), point_hessian(), point_value(), libMesh::HPCoarsenTest::select_refinement(), libMesh::EnsightIO::write_scalar_ascii(), and libMesh::EnsightIO::write_vector_ascii().

 {
   // Check the sizes
   libmesh_assert_less (global_dof_number, _dof_map->n_dofs());
   libmesh_assert_less (global_dof_number, current_local_solution->size());
 
   return (*current_local_solution)(global_dof_number);
 }

◆ deactivate()

void libMesh::System::deactivate ( )

inline

Deactivates the system. Only active systems are solved.

Definition at line 2081 of file system.h.

References _active.

 {
   _active = false;
 }

◆ disable_cache()

void libMesh::System::disable_cache ( )

inlinevirtual

Avoids use of any cached data that might affect any solve result. Should be overridden in derived systems.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2275 of file system.h.

References assemble_before_solve.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error().

2275 { assemble_before_solve = true; }

libMesh::System::assemble_before_solve

bool assemble_before_solve

Definition: system.h:1477

◆ disable_print_counter_info()

void libMesh::ReferenceCounter::disable_print_counter_info ( )

staticinherited

Definition at line 106 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

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

 {
   _enable_print_counter = false;
   return;
 }

◆ discrete_var_norm()

Real libMesh::System::discrete_var_norm	(	const NumericVector< Number > &	v,
		unsigned int	var,
		FEMNormType	norm_type
	)		const

private

Finds the discrete norm for the entries in the vector corresponding to Dofs associated with var.

Definition at line 1359 of file system.C.

References libMesh::DISCRETE_L1, libMesh::DISCRETE_L2, libMesh::DISCRETE_L_INF, local_dof_indices(), libMesh::NumericVector< T >::subset_l1_norm(), libMesh::NumericVector< T >::subset_l2_norm(), and libMesh::NumericVector< T >::subset_linfty_norm().

Referenced by calculate_norm().

 {
   std::set<dof_id_type> var_indices;
   local_dof_indices(var, var_indices);
 
   if (norm_type == DISCRETE_L1)
     return v.subset_l1_norm(var_indices);
   if (norm_type == DISCRETE_L2)
     return v.subset_l2_norm(var_indices);
   if (norm_type == DISCRETE_L_INF)
     return v.subset_linfty_norm(var_indices);
   else
     libmesh_error_msg("Invalid norm_type = " << norm_type);
 }

◆ 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 100 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

 {
   _enable_print_counter = true;
   return;
 }

◆ forward_qoi_parameter_sensitivity()

void libMesh::System::forward_qoi_parameter_sensitivity	(	const QoISet &	qoi_indices,
		const ParameterVector &	parameters,
		SensitivityData &	sensitivities
	)

inlinevirtual

Solves for parameter sensitivities using the forward method.

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2325 of file system.h.

Referenced by qoi_parameter_sensitivity().

 {
   libmesh_not_implemented();
 }

◆ get_adjoint_rhs() [1/2]

NumericVector< Number > & libMesh::System::get_adjoint_rhs ( unsigned int i = 0 )

Returns: A reference to one of the system's adjoint rhs vectors, by default the one corresponding to the first qoi. This what the user's QoI derivative code should assemble when setting up an adjoint problem

Definition at line 1031 of file system.C.

References get_vector().

Referenced by libMesh::ImplicitSystem::adjoint_solve(), libMesh::ImplicitSystem::forward_qoi_parameter_sensitivity(), libMesh::ImplicitSystem::qoi_parameter_hessian(), libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product(), and libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve().

 {
   std::ostringstream adjoint_rhs_name;
   adjoint_rhs_name << "adjoint_rhs" << i;
 
   return this->get_vector(adjoint_rhs_name.str());
 }

◆ get_adjoint_rhs() [2/2]

const NumericVector< Number > & libMesh::System::get_adjoint_rhs ( unsigned int i = 0 ) const

Returns: A reference to one of the system's adjoint rhs vectors, by default the one corresponding to the first qoi.

Definition at line 1041 of file system.C.

References get_vector().

 {
   std::ostringstream adjoint_rhs_name;
   adjoint_rhs_name << "adjoint_rhs" << i;
 
   return this->get_vector(adjoint_rhs_name.str());
 }

◆ get_adjoint_solution() [1/2]

NumericVector< Number > & libMesh::System::get_adjoint_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's adjoint solution vectors, by default the one corresponding to the first qoi.

Definition at line 969 of file system.C.

References get_vector().

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::ImplicitSystem::adjoint_solve(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::AdjointResidualErrorEstimator::estimate_error(), libMesh::ImplicitSystem::qoi_parameter_hessian(), libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product(), and libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "adjoint_solution" << i;
 
   return this->get_vector(adjoint_name.str());
 }

◆ get_adjoint_solution() [2/2]

const NumericVector< Number > & libMesh::System::get_adjoint_solution ( unsigned int i = 0 ) const

Returns: A reference to one of the system's adjoint solution vectors, by default the one corresponding to the first qoi.

Definition at line 979 of file system.C.

References get_vector().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "adjoint_solution" << i;
 
   return this->get_vector(adjoint_name.str());
 }

◆ get_all_variable_numbers()

void libMesh::System::get_all_variable_numbers ( std::vector< unsigned int > & all_variable_numbers ) const

Fills all_variable_numbers with all the variable numbers for the variables that have been added to this system.

Definition at line 1258 of file system.C.

References _variable_numbers, and n_vars().

 {
   all_variable_numbers.resize(n_vars());
 
   // Make sure the variable exists
   std::map<std::string, unsigned short int>::const_iterator
     it = _variable_numbers.begin();
   std::map<std::string, unsigned short int>::const_iterator
     it_end = _variable_numbers.end();
 
   unsigned int count = 0;
   for ( ; it != it_end; ++it)
     {
       all_variable_numbers[count] = it->second;
       count++;
     }
 }

◆ get_dof_map() [1/2]

const DofMap & libMesh::System::get_dof_map ( ) const

inline

Returns: A constant reference to this system's _dof_map.

Definition at line 2049 of file system.h.

References _dof_map.

Referenced by libMesh::__libmesh_petsc_diff_solver_jacobian(), libMesh::__libmesh_petsc_diff_solver_residual(), libMesh::ExactSolution::_compute_error(), libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::DifferentiableSystem::add_dot_var_dirichlet_bcs(), libMesh::HPCoarsenTest::add_projection(), libMesh::UnsteadySolver::adjoint_advance_timestep(), libMesh::ImplicitSystem::adjoint_solve(), libMesh::NewmarkSolver::advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), libMesh::EquationSystems::allgather(), libMesh::EquationSystems::build_discontinuous_solution_vector(), libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::PetscDMWrapper::build_sf(), calculate_norm(), libMesh::Problem_Interface::computeF(), libMesh::Problem_Interface::computeJacobian(), libMesh::Problem_Interface::computePreconditioner(), DMCreateDomainDecomposition_libMesh(), DMCreateFieldDecomposition_libMesh(), DMlibMeshFunction(), DMlibMeshJacobian(), DMlibMeshSetSystem_libMesh(), libMesh::DofMap::enforce_constraints_exactly(), libMesh::JumpErrorEstimator::estimate_error(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::ExactErrorEstimator::estimate_error(), get_info(), libMesh::SystemSubsetBySubdomain::init(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::UnsteadySolver::init_data(), libMesh::EigenSystem::init_matrices(), libMesh::ImplicitSystem::init_matrices(), libMesh::CondensedEigenSystem::initialize_condensed_dofs(), libMesh::OptimizationSystem::initialize_equality_constraints_storage(), libMesh::OptimizationSystem::initialize_inequality_constraints_storage(), libMesh::libmesh_petsc_snes_jacobian(), libMesh::libmesh_petsc_snes_postcheck(), libMesh::libmesh_petsc_snes_residual_helper(), local_dof_indices(), libMesh::DofMap::max_constraint_error(), libMesh::DGFEMContext::neighbor_side_fe_reinit(), libMesh::UnsteadySolver::old_nonlinear_solution(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), libMesh::WeightedPatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::PatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::petsc_auto_fieldsplit(), libMesh::ErrorVector::plot_error(), point_gradient(), point_hessian(), point_value(), libMesh::FEMContext::pre_fe_reinit(), re_update(), read_parallel_data(), read_SCALAR_dofs(), libMesh::SecondOrderUnsteadySolver::reinit(), libMesh::UnsteadySolver::reinit(), libMesh::EigenSystem::reinit(), libMesh::ImplicitSystem::reinit(), reinit_constraints(), libMesh::EquationSystems::reinit_solutions(), libMesh::UnsteadySolver::retrieve_timestep(), libMesh::HPCoarsenTest::select_refinement(), libMesh::ImplicitSystem::sensitivity_solve(), libMesh::PetscDMWrapper::set_point_range_in_section(), libMesh::NewtonSolver::solve(), libMesh::PetscDiffSolver::solve(), libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve(), libMesh::ImplicitSystem::weighted_sensitivity_solve(), write_parallel_data(), libMesh::EnsightIO::write_scalar_ascii(), write_SCALAR_dofs(), and libMesh::EnsightIO::write_vector_ascii().

 {
   return *_dof_map;
 }

◆ get_dof_map() [2/2]

DofMap & libMesh::System::get_dof_map ( )

inline

Returns: A writable reference to this system's _dof_map.

Definition at line 2057 of file system.h.

References _dof_map.

 {
   return *_dof_map;
 }

◆ get_equation_systems() [1/2]

const EquationSystems& libMesh::System::get_equation_systems ( ) const

inline

Returns: A constant reference to this system's parent EquationSystems object.

Definition at line 712 of file system.h.

References _equation_systems.

712 { return _equation_systems; }

libMesh::System::_equation_systems

EquationSystems & _equation_systems

Definition: system.h:1890

◆ get_equation_systems() [2/2]

EquationSystems& libMesh::System::get_equation_systems ( )

inline

Returns: A reference to this system's parent EquationSystems object.

Definition at line 717 of file system.h.

References _equation_systems.

717 { return _equation_systems; }

libMesh::System::_equation_systems

EquationSystems & _equation_systems

Definition: system.h:1890

◆ get_info() [1/2]

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 & pr : _counts)
     {
       const std::string name(pr.first);
       const unsigned int creations    = pr.second.first;
       const unsigned int destructions = pr.second.second;
 
       oss << "| " << name << " reference count information:\n"
           << "|  Creations:    " << creations    << '\n'
           << "|  Destructions: " << destructions << '\n';
     }
 
   oss << " ---------------------------------------------------------------------------- \n";
 
   return oss.str();
 
 #else
 
   return "";
 
 #endif
 }

◆ get_info() [2/2]

std::string libMesh::System::get_info ( ) const

Returns: A string containing information about the system.

Definition at line 1658 of file system.C.

References libMesh::FEType::family, get_dof_map(), libMesh::DofMap::get_info(), libMesh::FEType::inf_map, n_constrained_dofs(), n_dofs(), n_local_constrained_dofs(), n_local_dofs(), n_matrices(), n_variable_groups(), libMesh::VariableGroup::n_variables(), n_vectors(), libMesh::VariableGroup::name(), name(), number(), libMesh::FEType::order, libMesh::FEType::radial_family, libMesh::FEType::radial_order, system_type(), libMesh::Variable::type(), libMesh::DofMap::variable_group(), and variable_group().

 {
   std::ostringstream oss;
 
 
   const std::string & sys_name = this->name();
 
   oss << "   System #"  << this->number() << ", \"" << sys_name << "\"\n"
       << "    Type \""  << this->system_type() << "\"\n"
       << "    Variables=";
 
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     {
       const VariableGroup & vg_description (this->variable_group(vg));
 
       if (vg_description.n_variables() > 1) oss << "{ ";
       for (unsigned int vn=0; vn<vg_description.n_variables(); vn++)
         oss << "\"" << vg_description.name(vn) << "\" ";
       if (vg_description.n_variables() > 1) oss << "} ";
     }
 
   oss << '\n';
 
   oss << "    Finite Element Types=";
 #ifndef LIBMESH_ENABLE_INFINITE_ELEMENTS
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     oss << "\""
         << Utility::enum_to_string<FEFamily>(this->get_dof_map().variable_group(vg).type().family)
         << "\" ";
 #else
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     {
       oss << "\""
           << Utility::enum_to_string<FEFamily>(this->get_dof_map().variable_group(vg).type().family)
           << "\", \""
           << Utility::enum_to_string<FEFamily>(this->get_dof_map().variable_group(vg).type().radial_family)
           << "\" ";
     }
 
   oss << '\n' << "    Infinite Element Mapping=";
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     oss << "\""
         << Utility::enum_to_string<InfMapType>(this->get_dof_map().variable_group(vg).type().inf_map)
         << "\" ";
 #endif
 
   oss << '\n';
 
   oss << "    Approximation Orders=";
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     {
 #ifndef LIBMESH_ENABLE_INFINITE_ELEMENTS
       oss << "\""
           << Utility::enum_to_string<Order>(this->get_dof_map().variable_group(vg).type().order)
           << "\" ";
 #else
       oss << "\""
           << Utility::enum_to_string<Order>(this->get_dof_map().variable_group(vg).type().order)
           << "\", \""
           << Utility::enum_to_string<Order>(this->get_dof_map().variable_group(vg).type().radial_order)
           << "\" ";
 #endif
     }
 
   oss << '\n';
 
   oss << "    n_dofs()="             << this->n_dofs()             << '\n';
   oss << "    n_local_dofs()="       << this->n_local_dofs()       << '\n';
 #ifdef LIBMESH_ENABLE_CONSTRAINTS
   oss << "    n_constrained_dofs()=" << this->n_constrained_dofs() << '\n';
   oss << "    n_local_constrained_dofs()=" << this->n_local_constrained_dofs() << '\n';
 #endif
 
   oss << "    " << "n_vectors()="  << this->n_vectors()  << '\n';
   oss << "    " << "n_matrices()="  << this->n_matrices()  << '\n';
   //   oss << "    " << "n_additional_matrices()=" << this->n_additional_matrices() << '\n';
 
   oss << this->get_dof_map().get_info();
 
   return oss.str();
 }

◆ get_mesh() [1/2]

const MeshBase & libMesh::System::get_mesh ( ) const

inline

Returns: A constant reference to this systems's _mesh.

Definition at line 2033 of file system.h.

References _mesh.

Referenced by libMesh::ExactSolution::_compute_error(), libMesh::PetscDMWrapper::add_dofs_to_section(), libMesh::HPCoarsenTest::add_projection(), libMesh::FEMSystem::assemble_qoi(), libMesh::FEMSystem::assemble_qoi_derivative(), libMesh::FEMSystem::assembly(), calculate_norm(), DMCreateDomainDecomposition_libMesh(), DMCreateFieldDecomposition_libMesh(), DMlibMeshSetSystem_libMesh(), libMesh::WeightedPatchRecoveryErrorEstimator::estimate_error(), libMesh::PatchRecoveryErrorEstimator::estimate_error(), libMesh::JumpErrorEstimator::estimate_error(), libMesh::AdjointResidualErrorEstimator::estimate_error(), libMesh::ExactErrorEstimator::estimate_error(), libMesh::SystemSubsetBySubdomain::init(), init_data(), libMesh::EigenSystem::init_matrices(), libMesh::ImplicitSystem::init_matrices(), local_dof_indices(), libMesh::DofMap::max_constraint_error(), libMesh::FEMSystem::mesh_position_get(), libMesh::FEMSystem::mesh_position_set(), libMesh::WeightedPatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::PatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::petsc_auto_fieldsplit(), point_gradient(), point_hessian(), point_value(), libMesh::FEMSystem::postprocess(), read_header(), read_legacy_data(), read_parallel_data(), read_serialized_vector(), read_serialized_vectors(), libMesh::EigenSystem::reinit(), libMesh::ImplicitSystem::reinit(), libMesh::HPSingularity::select_refinement(), libMesh::HPCoarsenTest::select_refinement(), libMesh::PetscDMWrapper::set_point_range_in_section(), write_header(), write_parallel_data(), write_serialized_vector(), write_serialized_vectors(), and zero_variable().

 {
   return _mesh;
 }

◆ get_mesh() [2/2]

MeshBase & libMesh::System::get_mesh ( )

inline

Returns: A reference to this systems's _mesh.

Definition at line 2041 of file system.h.

References _mesh.

 {
   return _mesh;
 }

◆ get_sensitivity_rhs() [1/2]

NumericVector< Number > & libMesh::System::get_sensitivity_rhs ( unsigned int i = 0 )

Returns: A reference to one of the system's sensitivity rhs vectors, by default the one corresponding to the first parameter. By default these vectors are built by the library, using finite differences, when assemble_residual_derivatives() is called.

When assembled, this vector should hold -(partial R / partial p_i)

Definition at line 1061 of file system.C.

References get_vector().

Referenced by libMesh::ImplicitSystem::adjoint_qoi_parameter_sensitivity(), and libMesh::ImplicitSystem::sensitivity_solve().

 {
   std::ostringstream sensitivity_rhs_name;
   sensitivity_rhs_name << "sensitivity_rhs" << i;
 
   return this->get_vector(sensitivity_rhs_name.str());
 }

◆ get_sensitivity_rhs() [2/2]

const NumericVector< Number > & libMesh::System::get_sensitivity_rhs ( unsigned int i = 0 ) const

Returns: A reference to one of the system's sensitivity rhs vectors, by default the one corresponding to the first parameter.

Definition at line 1071 of file system.C.

References get_vector().

 {
   std::ostringstream sensitivity_rhs_name;
   sensitivity_rhs_name << "sensitivity_rhs" << i;
 
   return this->get_vector(sensitivity_rhs_name.str());
 }

◆ get_sensitivity_solution() [1/2]

NumericVector< Number > & libMesh::System::get_sensitivity_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's solution sensitivity vectors, by default the one corresponding to the first parameter.

Definition at line 916 of file system.C.

References get_vector().

Referenced by libMesh::ImplicitSystem::forward_qoi_parameter_sensitivity(), libMesh::ImplicitSystem::qoi_parameter_hessian(), and libMesh::ImplicitSystem::sensitivity_solve().

 {
   std::ostringstream sensitivity_name;
   sensitivity_name << "sensitivity_solution" << i;
 
   return this->get_vector(sensitivity_name.str());
 }

◆ get_sensitivity_solution() [2/2]

const NumericVector< Number > & libMesh::System::get_sensitivity_solution ( unsigned int i = 0 ) const

Returns: A reference to one of the system's solution sensitivity vectors, by default the one corresponding to the first parameter.

Definition at line 926 of file system.C.

References get_vector().

 {
   std::ostringstream sensitivity_name;
   sensitivity_name << "sensitivity_solution" << i;
 
   return this->get_vector(sensitivity_name.str());
 }

◆ get_vector() [1/4]

const NumericVector< Number > & libMesh::System::get_vector ( const std::string & vec_name ) const

Returns: A const reference to this system's additional vector named vec_name. Access is only granted when the vector is already properly initialized.

Definition at line 774 of file system.C.

References _vectors.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::UnsteadySolver::adjoint_advance_timestep(), libMesh::NewmarkSolver::advance_timestep(), libMesh::AdaptiveTimeSolver::advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), compare(), libMesh::NewmarkSolver::compute_initial_accel(), libMesh::UnsteadySolver::du(), libMesh::AdjointRefinementEstimator::estimate_error(), get_adjoint_rhs(), get_adjoint_solution(), get_sensitivity_rhs(), get_sensitivity_solution(), get_weighted_sensitivity_adjoint_solution(), get_weighted_sensitivity_solution(), libMesh::NewmarkSystem::initial_conditions(), libMesh::NewmarkSolver::project_initial_accel(), libMesh::SecondOrderUnsteadySolver::project_initial_rate(), libMesh::SecondOrderUnsteadySolver::reinit(), libMesh::UnsteadySolver::reinit(), libMesh::MemorySolutionHistory::retrieve(), libMesh::UnsteadySolver::retrieve_timestep(), libMesh::TwostepTimeSolver::solve(), libMesh::FrequencySystem::solve(), libMesh::NewmarkSystem::update_rhs(), and libMesh::NewmarkSystem::update_u_v_a().

 {
   // Make sure the vector exists
   const_vectors_iterator pos = _vectors.find(vec_name);
 
   if (pos == _vectors.end())
     libmesh_error_msg("ERROR: vector " << vec_name << " does not exist in this system!");
 
   return *(pos->second);
 }

◆ get_vector() [2/4]

NumericVector< Number > & libMesh::System::get_vector ( const std::string & vec_name )

Returns: A writable reference to this system's additional vector named vec_name. Access is only granted when the vector is already properly initialized.

Definition at line 787 of file system.C.

References _vectors.

 {
   // Make sure the vector exists
   vectors_iterator pos = _vectors.find(vec_name);
 
   if (pos == _vectors.end())
     libmesh_error_msg("ERROR: vector " << vec_name << " does not exist in this system!");
 
   return *(pos->second);
 }

◆ get_vector() [3/4]

const NumericVector< Number > & libMesh::System::get_vector ( const unsigned int vec_num ) const

Returns: A const reference to this system's additional vector number vec_num (where the vectors are counted starting with 0).

Definition at line 800 of file system.C.

References vectors_begin(), and vectors_end().

 {
   const_vectors_iterator v = vectors_begin();
   const_vectors_iterator v_end = vectors_end();
   unsigned int num = 0;
   while ((num<vec_num) && (v!=v_end))
     {
       num++;
       ++v;
     }
   libmesh_assert (v != v_end);
   return *(v->second);
 }

◆ get_vector() [4/4]

NumericVector< Number > & libMesh::System::get_vector ( const unsigned int vec_num )

Returns: A writable reference to this system's additional vector number vec_num (where the vectors are counted starting with 0).

Definition at line 816 of file system.C.

References vectors_begin(), and vectors_end().

 {
   vectors_iterator v = vectors_begin();
   vectors_iterator v_end = vectors_end();
   unsigned int num = 0;
   while ((num<vec_num) && (v!=v_end))
     {
       num++;
       ++v;
     }
   libmesh_assert (v != v_end);
   return *(v->second);
 }

◆ get_weighted_sensitivity_adjoint_solution() [1/2]

NumericVector< Number > & libMesh::System::get_weighted_sensitivity_adjoint_solution ( unsigned int i = 0 )

Returns: A reference to one of the system's weighted sensitivity adjoint solution vectors, by default the one corresponding to the first qoi.

Definition at line 1001 of file system.C.

References get_vector().

Referenced by libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product(), and libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "weighted_sensitivity_adjoint_solution" << i;
 
   return this->get_vector(adjoint_name.str());
 }

◆ get_weighted_sensitivity_adjoint_solution() [2/2]

const NumericVector< Number > & libMesh::System::get_weighted_sensitivity_adjoint_solution ( unsigned int i = 0 ) const

Returns: A reference to one of the system's weighted sensitivity adjoint solution vectors, by default the one corresponding to the first qoi.

Definition at line 1011 of file system.C.

References get_vector().

 {
   std::ostringstream adjoint_name;
   adjoint_name << "weighted_sensitivity_adjoint_solution" << i;
 
   return this->get_vector(adjoint_name.str());
 }

◆ get_weighted_sensitivity_solution() [1/2]

NumericVector< Number > & libMesh::System::get_weighted_sensitivity_solution ( )

Returns: A reference to the solution of the last weighted sensitivity solve

Definition at line 943 of file system.C.

References get_vector().

Referenced by libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product(), and libMesh::ImplicitSystem::weighted_sensitivity_solve().

 {
   return this->get_vector("weighted_sensitivity_solution");
 }

◆ get_weighted_sensitivity_solution() [2/2]

const NumericVector< Number > & libMesh::System::get_weighted_sensitivity_solution ( ) const

Returns: A reference to the solution of the last weighted sensitivity solve

Definition at line 950 of file system.C.

References get_vector().

 {
   return this->get_vector("weighted_sensitivity_solution");
 }

◆ has_variable()

bool libMesh::System::has_variable ( const std::string & var ) const

Returns: true if a variable named var exists in this System

Definition at line 1236 of file system.C.

References _variable_numbers.

Referenced by libMesh::GMVIO::copy_nodal_solution().

 {
   return _variable_numbers.count(var);
 }

◆ have_vector()

bool libMesh::System::have_vector ( const std::string & vec_name ) const

inline

Returns: true if this System has a vector associated with the given name, false otherwise.

Definition at line 2225 of file system.h.

References _vectors.

Referenced by add_vector().

 {
   return (_vectors.count(vec_name));
 }

◆ hide_output()

bool& libMesh::System::hide_output ( )

inline

Returns: A writable reference to a boolean that determines if this system can be written to file or not. If set to true, then EquationSystems::write will ignore this system.

Definition at line 1662 of file system.h.

References _hide_output.

1662 { return _hide_output; }

libMesh::System::_hide_output

bool _hide_output

Definition: system.h:2009

◆ identify_variable_groups() [1/2]

bool libMesh::System::identify_variable_groups ( ) const

inline

Returns: true when VariableGroup structures should be automatically identified, false otherwise.

Definition at line 2201 of file system.h.

References _identify_variable_groups.

Referenced by add_variable().

 {
   return _identify_variable_groups;
 }

◆ identify_variable_groups() [2/2]

void libMesh::System::identify_variable_groups ( const bool ivg )

inline

Toggle automatic VariableGroup identification.

Definition at line 2209 of file system.h.

References _identify_variable_groups.

 {
   _identify_variable_groups = ivg;
 }

◆ increment_constructor_count()

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

inlineprotectedinherited

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

Definition at line 181 of file reference_counter.h.

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

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

 {
   Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
   std::pair<unsigned int, unsigned int> & p = _counts[name];
 
   p.first++;
 }

◆ increment_destructor_count()

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

inlineprotectedinherited

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

Definition at line 194 of file reference_counter.h.

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

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

 {
   Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
   std::pair<unsigned int, unsigned int> & p = _counts[name];
 
   p.second++;
 }

◆ init()

void libMesh::System::init ( )

Initializes degrees of freedom on the current mesh. Sets the

Definition at line 237 of file system.C.

References _basic_system_only, init_data(), is_initialized(), n_vars(), and user_initialization().

 {
   // Calling init() twice on the same system currently works evil
   // magic, whether done directly or via EquationSystems::read()
   libmesh_assert(!this->is_initialized());
 
   // First initialize any required data:
   // either only the basic System data
   if (_basic_system_only)
     System::init_data();
   // or all the derived class' data too
   else
     this->init_data();
 
   // If no variables have been added to this system
   // don't do anything
   if (!this->n_vars())
     return;
 
   // Then call the user-provided initialization function
   this->user_initialization();
 }

◆ init_data()

void libMesh::System::init_data ( )

protectedvirtual

Initializes the data for the system.

Note: This is called before any user-supplied initialization function so that all required storage will be available.

Reimplemented in libMesh::DifferentiableSystem, libMesh::ImplicitSystem, libMesh::ContinuationSystem, libMesh::RBEIMConstruction, libMesh::FEMSystem, libMesh::OptimizationSystem, libMesh::FrequencySystem, libMesh::RBConstructionBase< LinearImplicitSystem >, libMesh::RBConstructionBase< CondensedEigenSystem >, libMesh::EigenSystem, and libMesh::LinearImplicitSystem.

Definition at line 262 of file system.C.

References _dof_map, _is_initialized, _vector_types, _vectors, current_local_solution, get_mesh(), libMesh::GHOSTED, mesh, n_dofs(), n_local_dofs(), n_variable_groups(), libMesh::PARALLEL, reinit_constraints(), libMesh::SERIAL, and solution.

Referenced by init(), libMesh::EigenSystem::init_data(), and libMesh::ImplicitSystem::init_data().

 {
   MeshBase & mesh = this->get_mesh();
 
   // Add all variable groups to our underlying DofMap
   for (unsigned int vg=0; vg<this->n_variable_groups(); vg++)
     _dof_map->add_variable_group(this->variable_group(vg));
 
   // Distribute the degrees of freedom on the mesh
   _dof_map->distribute_dofs (mesh);
 
   // Recreate any user or internal constraints
   this->reinit_constraints();
 
   // And clean up the send_list before we first use it
   _dof_map->prepare_send_list();
 
   // Resize the solution conformal to the current mesh
   solution->init (this->n_dofs(), this->n_local_dofs(), false, PARALLEL);
 
   // Resize the current_local_solution for the current mesh
 #ifdef LIBMESH_ENABLE_GHOSTED
   current_local_solution->init (this->n_dofs(), this->n_local_dofs(),
                                 _dof_map->get_send_list(), false,
                                 GHOSTED);
 #else
   current_local_solution->init (this->n_dofs(), false, SERIAL);
 #endif
 
   // from now on, adding additional vectors or variables can't be done
   // without immediately initializing them
   _is_initialized = true;
 
   // initialize & zero other vectors, if necessary
   for (auto & pr : _vectors)
     {
       ParallelType type = _vector_types[pr.first];
 
       if (type == GHOSTED)
         {
 #ifdef LIBMESH_ENABLE_GHOSTED
           pr.second->init (this->n_dofs(), this->n_local_dofs(),
                            _dof_map->get_send_list(), false,
                            GHOSTED);
 #else
           libmesh_error_msg("Cannot initialize ghosted vectors when they are not enabled.");
 #endif
         }
       else if (type == SERIAL)
         {
           pr.second->init (this->n_dofs(), false, type);
         }
       else
         {
           libmesh_assert_equal_to(type, PARALLEL);
           pr.second->init (this->n_dofs(), this->n_local_dofs(), false, type);
         }
     }
 }

◆ is_adjoint_already_solved()

bool libMesh::System::is_adjoint_already_solved ( ) const

inline

Accessor for the adjoint_already_solved boolean

Definition at line 388 of file system.h.

References adjoint_already_solved.

Referenced by libMesh::ImplicitSystem::adjoint_qoi_parameter_sensitivity(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::AdjointResidualErrorEstimator::estimate_error(), libMesh::ImplicitSystem::qoi_parameter_hessian(), and libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product().

389 { return adjoint_already_solved;}

libMesh::System::adjoint_already_solved

bool adjoint_already_solved

Definition: system.h:2003

◆ is_initialized()

bool libMesh::System::is_initialized ( )

inline

Returns: true iff this system has been initialized.

Definition at line 2089 of file system.h.

References _is_initialized.

Referenced by add_variable(), add_variables(), and init().

 {
   return _is_initialized;
 }

◆ local_dof_indices()

void libMesh::System::local_dof_indices	(	const unsigned int	var,
		std::set< dof_id_type > &	var_indices
	)		const

Fills the std::set with the degrees of freedom on the local processor corresponding the the variable number passed in.

Definition at line 1277 of file system.C.

References libMesh::DofMap::dof_indices(), libMesh::DofMap::end_dof(), libMesh::DofMap::first_dof(), get_dof_map(), and get_mesh().

Referenced by discrete_var_norm().

 {
   // Make sure the set is clear
   var_indices.clear();
 
   std::vector<dof_id_type> dof_indices;
 
   const dof_id_type
     first_local = this->get_dof_map().first_dof(),
     end_local   = this->get_dof_map().end_dof();
 
   // Begin the loop over the elements
   for (const auto & elem : this->get_mesh().active_local_element_ptr_range())
     {
       this->get_dof_map().dof_indices (elem, dof_indices, var);
 
       for (std::size_t i=0; i<dof_indices.size(); i++)
         {
           dof_id_type dof = dof_indices[i];
 
           //If the dof is owned by the local processor
           if (first_local <= dof && dof < end_local)
             var_indices.insert(dof_indices[i]);
         }
     }
 
   // we may have missed assigning DOFs to nodes that we own
   // but to which we have no connected elements matching our
   // variable restriction criterion.  this will happen, for example,
   // if variable V is restricted to subdomain S.  We may not own
   // any elements which live in S, but we may own nodes which are
   // *connected* to elements which do.
   for (const auto & node : this->get_mesh().local_node_ptr_range())
     {
       libmesh_assert(node);
       this->get_dof_map().dof_indices (node, dof_indices, var);
       for (auto dof : dof_indices)
         if (first_local <= dof && dof < end_local)
           var_indices.insert(dof);
     }
 }

◆ n_active_dofs()

dof_id_type libMesh::System::n_active_dofs ( ) const

inline

Returns: The number of active degrees of freedom for this System.

Definition at line 2217 of file system.h.

References n_constrained_dofs(), and n_dofs().

 {
   return this->n_dofs() - this->n_constrained_dofs();
 }

◆ n_components()

unsigned int libMesh::System::n_components ( ) const

inline

Returns: The total number of scalar components in the system's variables. This will equal n_vars() in the case of all scalar-valued variables.

Definition at line 2121 of file system.h.

References _variables, libMesh::Variable::first_scalar_number(), and libMesh::Variable::n_components().

Referenced by add_variables().

 {
   if (_variables.empty())
     return 0;
 
   const Variable & last = _variables.back();
   return last.first_scalar_number() + last.n_components();
 }

◆ n_constrained_dofs()

dof_id_type libMesh::System::n_constrained_dofs ( ) const

Returns: The total number of constrained degrees of freedom in the system.

Definition at line 157 of file system.C.

References _dof_map.

Referenced by get_info(), and n_active_dofs().

 {
 #ifdef LIBMESH_ENABLE_CONSTRAINTS
 
   return _dof_map->n_constrained_dofs();
 
 #else
 
   return 0;
 
 #endif
 }

◆ n_dofs()

dof_id_type libMesh::System::n_dofs ( ) const

Returns: The number of degrees of freedom in the system

Definition at line 150 of file system.C.

References _dof_map.

Referenced by add_vector(), libMesh::AdjointRefinementEstimator::estimate_error(), get_info(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::UnsteadySolver::init_data(), init_data(), libMesh::OptimizationSystem::initialize_equality_constraints_storage(), libMesh::OptimizationSystem::initialize_inequality_constraints_storage(), n_active_dofs(), libMesh::CondensedEigenSystem::n_global_non_condensed_dofs(), libMesh::FEMSystem::numerical_jacobian(), read_legacy_data(), libMesh::SecondOrderUnsteadySolver::reinit(), libMesh::UnsteadySolver::reinit(), and restrict_vectors().

 {
   return _dof_map->n_dofs();
 }

◆ n_local_constrained_dofs()

dof_id_type libMesh::System::n_local_constrained_dofs ( ) const

Returns: The number of constrained degrees of freedom on this processor.

Definition at line 172 of file system.C.

References _dof_map.

Referenced by get_info().

 {
 #ifdef LIBMESH_ENABLE_CONSTRAINTS
 
   return _dof_map->n_local_constrained_dofs();
 
 #else
 
   return 0;
 
 #endif
 }

◆ n_local_dofs()

dof_id_type libMesh::System::n_local_dofs ( ) const

Returns: The number of degrees of freedom local to this processor

Definition at line 187 of file system.C.

References _dof_map, and libMesh::ParallelObject::processor_id().

Referenced by add_vector(), libMesh::PetscDMWrapper::build_section(), libMesh::AdjointRefinementEstimator::estimate_error(), get_info(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::UnsteadySolver::init_data(), init_data(), libMesh::OptimizationSystem::initialize_equality_constraints_storage(), libMesh::OptimizationSystem::initialize_inequality_constraints_storage(), libMesh::SecondOrderUnsteadySolver::reinit(), libMesh::UnsteadySolver::reinit(), and restrict_vectors().

 {
   return _dof_map->n_dofs_on_processor (this->processor_id());
 }

◆ n_matrices()

unsigned int libMesh::System::n_matrices ( ) const

inlinevirtual

Returns: The number of matrices handled by this system.

This will return 0 by default but can be overridden.

Reimplemented in libMesh::ImplicitSystem, and libMesh::EigenSystem.

Definition at line 2239 of file system.h.

Referenced by get_info().

 {
   return 0;
 }

◆ n_objects()

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

inlinestaticinherited

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

Definition at line 83 of file reference_counter.h.

References libMesh::ReferenceCounter::_n_objects.

84 { return _n_objects; }

libMesh::ReferenceCounter::_n_objects

static Threads::atomic< unsigned int > _n_objects

Definition: reference_counter.h:130

◆ n_processors()

processor_id_type libMesh::ParallelObject::n_processors ( ) const

inlineinherited

Returns: The number of processors in the group.

Definition at line 95 of file parallel_object.h.

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

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

libMesh::Parallel::Communicator::size

processor_id_type size() const

Definition: communicator.h:175

libMesh::ParallelObject::_communicator

const Parallel::Communicator & _communicator

Definition: parallel_object.h:107

◆ n_qois()

unsigned int libMesh::System::n_qois ( ) const

inline

Number of currently active quantities of interest.

Definition at line 2278 of file system.h.

References qoi.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::ImplicitSystem::adjoint_qoi_parameter_sensitivity(), libMesh::ImplicitSystem::adjoint_solve(), libMesh::SensitivityData::allocate_data(), libMesh::SensitivityData::allocate_hessian_data(), libMesh::ExplicitSystem::assemble_qoi(), libMesh::FEMSystem::assemble_qoi(), libMesh::ExplicitSystem::assemble_qoi_derivative(), libMesh::FEMSystem::assemble_qoi_derivative(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::AdjointResidualErrorEstimator::estimate_error(), libMesh::ImplicitSystem::forward_qoi_parameter_sensitivity(), libMesh::FEMContext::pre_fe_reinit(), libMesh::ImplicitSystem::qoi_parameter_hessian(), libMesh::ImplicitSystem::qoi_parameter_hessian_vector_product(), libMesh::QoISet::size(), and libMesh::ImplicitSystem::weighted_sensitivity_adjoint_solve().

 {
   return cast_int<unsigned int>(this->qoi.size());
 }

◆ n_variable_groups()

unsigned int libMesh::System::n_variable_groups ( ) const

inline

Returns: The number of VariableGroup variable groups in the system

Definition at line 2113 of file system.h.

References _variable_groups.

Referenced by add_variable(), libMesh::FEMSystem::assembly(), get_info(), and init_data().

 {
   return cast_int<unsigned int>(_variable_groups.size());
 }

◆ n_vars()

unsigned int libMesh::System::n_vars ( ) const

inline

Returns: The number of variables in the system

Definition at line 2105 of file system.h.

References _variables.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::PetscDMWrapper::add_dofs_helper(), libMesh::DiffContext::add_localized_vector(), add_variable(), add_variables(), libMesh::EquationSystems::build_discontinuous_solution_vector(), libMesh::EquationSystems::build_parallel_elemental_solution_vector(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::PetscDMWrapper::build_section(), calculate_norm(), libMesh::DGFEMContext::DGFEMContext(), libMesh::DiffContext::DiffContext(), libMesh::JumpErrorEstimator::estimate_error(), libMesh::AdjointResidualErrorEstimator::estimate_error(), libMesh::ExactErrorEstimator::estimate_error(), libMesh::ErrorEstimator::estimate_errors(), libMesh::ExactSolution::ExactSolution(), get_all_variable_numbers(), init(), libMesh::FEMSystem::init_context(), libMesh::FEMContext::init_internal_data(), libMesh::DGFEMContext::neighbor_side_fe_reinit(), libMesh::WeightedPatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::PatchRecoveryErrorEstimator::EstimateError::operator()(), libMesh::petsc_auto_fieldsplit(), libMesh::FEMContext::pre_fe_reinit(), re_update(), read_legacy_data(), read_parallel_data(), read_serialized_blocked_dof_objects(), read_serialized_vector(), read_serialized_vectors(), libMesh::HPCoarsenTest::select_refinement(), libMesh::PetscDMWrapper::set_point_range_in_section(), libMesh::SystemSubsetBySubdomain::set_var_nums(), write_header(), write_parallel_data(), write_serialized_blocked_dof_objects(), write_serialized_vector(), write_serialized_vectors(), and zero_variable().

 {
   return cast_int<unsigned int>(_variables.size());
 }

◆ n_vectors()

unsigned int libMesh::System::n_vectors ( ) const

inline

Returns: The number of vectors (in addition to the solution) handled by this system This is the size of the _vectors map

Definition at line 2233 of file system.h.

References _vectors.

Referenced by libMesh::ExplicitSystem::add_system_rhs(), compare(), get_info(), and write_header().

 {
   return cast_int<unsigned int>(_vectors.size());
 }

◆ name()

const std::string & libMesh::System::name ( ) const

inline

Returns: The system name.

Definition at line 2017 of file system.h.

References _sys_name.

Referenced by compare(), libMesh::ContinuationSystem::ContinuationSystem(), DMlibMeshSetUpName_Private(), libMesh::ExactErrorEstimator::estimate_error(), libMesh::ExactSolution::ExactSolution(), libMesh::ExactErrorEstimator::find_squared_element_error(), get_info(), libMesh::ImplicitSystem::get_linear_solver(), libMesh::NewtonSolver::init(), libMesh::TimeSolver::init_data(), libMesh::petsc_auto_fieldsplit(), libMesh::TimeSolver::reinit(), libMesh::PetscDiffSolver::setup_petsc_data(), libMesh::FrequencySystem::solve(), libMesh::LinearImplicitSystem::solve(), libMesh::NonlinearImplicitSystem::solve(), user_assembly(), user_constrain(), user_initialization(), user_QOI(), user_QOI_derivative(), write_header(), write_parallel_data(), and write_serialized_data().

 {
   return _sys_name;
 }

◆ number()

unsigned int libMesh::System::number ( ) const

inline

Returns: The system number.

Definition at line 2025 of file system.h.

References _sys_number.

Referenced by libMesh::ExactSolution::_compute_error(), libMesh::PetscDMWrapper::add_dofs_helper(), add_variable(), add_variables(), libMesh::EquationSystems::build_parallel_solution_vector(), libMesh::ExodusII_IO::copy_elemental_solution(), libMesh::ExodusII_IO::copy_nodal_solution(), libMesh::AdjointRefinementEstimator::estimate_error(), libMesh::ExactErrorEstimator::find_squared_element_error(), get_info(), read_legacy_data(), read_parallel_data(), read_serialized_blocked_dof_objects(), libMesh::HPCoarsenTest::select_refinement(), libMesh::PetscDMWrapper::set_point_range_in_section(), write_parallel_data(), write_serialized_blocked_dof_objects(), and zero_variable().

 {
   return _sys_number;
 }

◆ operator=()

System & libMesh::System::operator= ( const System & )

private

This isn't a copyable object, so let's make sure nobody tries.

We won't even bother implementing this; we'll just make sure that the compiler doesn't implement a default.

Definition at line 114 of file system.C.

 {
   libmesh_not_implemented();
 }

◆ point_gradient() [1/3]

Gradient libMesh::System::point_gradient	(	unsigned int	var,
		const Point &	p,
		const bool	insist_on_success = `true`
	)		const

Returns: The gradient of the solution variable var at the physical point p in the mesh, similarly to point_value.

Definition at line 2100 of file system.C.

References libMesh::Parallel::Communicator::broadcast(), libMesh::ParallelObject::comm(), libMesh::PointLocatorBase::enable_out_of_mesh_mode(), get_dof_map(), get_mesh(), mesh, libMesh::Parallel::Communicator::min(), libMesh::ParallelObject::n_processors(), libMesh::ParallelObject::processor_id(), and libMesh::DofObject::processor_id().

Referenced by point_gradient().

 {
   // This function must be called on every processor; there's no
   // telling where in the partition p falls.
   parallel_object_only();
 
   // And every processor had better agree about which point we're
   // looking for
 #ifndef NDEBUG
   libmesh_assert(this->comm().verify(p(0)));
 #if LIBMESH_DIM > 1
   libmesh_assert(this->comm().verify(p(1)));
 #endif
 #if LIBMESH_DIM > 2
   libmesh_assert(this->comm().verify(p(2)));
 #endif
 #endif // NDEBUG
 
   // Get a reference to the mesh object associated with the system object that calls this function
   const MeshBase & mesh = this->get_mesh();
 
   // Use an existing PointLocator or create a new one
   std::unique_ptr<PointLocatorBase> locator_ptr = mesh.sub_point_locator();
   PointLocatorBase & locator = *locator_ptr;
 
   if (!insist_on_success || !mesh.is_serial())
     locator.enable_out_of_mesh_mode();
 
   // Get a pointer to the element that contains P
   const Elem * e = locator(p);
 
   Gradient grad_u;
 
   if (e && this->get_dof_map().is_evaluable(*e, var))
     grad_u = point_gradient(var, p, *e);
 
   // If I have an element containing p, then let's let everyone know
   processor_id_type lowest_owner =
     (e && (e->processor_id() == this->processor_id())) ?
     this->processor_id() : this->n_processors();
   this->comm().min(lowest_owner);
 
   // Everybody should get their value from a processor that was able
   // to compute it.
   // If nobody admits owning the point, we may have a problem.
   if (lowest_owner != this->n_processors())
     this->comm().broadcast(grad_u, lowest_owner);
   else
     libmesh_assert(!insist_on_success);
 
   return grad_u;
 }

◆ point_gradient() [2/3]

Gradient libMesh::System::point_gradient	(	unsigned int	var,
		const Point &	p,
		const Elem &	e
	)		const

Returns: The gradient of the solution variable var at the physical point p in local Elem e in the mesh, similarly to point_value.

Definition at line 2154 of file system.C.

References libMesh::TypeVector< T >::add_scaled(), libMesh::FEGenericBase< OutputType >::build(), libMesh::Elem::contains_point(), current_solution(), libMesh::Elem::dim(), libMesh::DofMap::dof_indices(), get_dof_map(), libMesh::Elem::infinite(), libMesh::FEInterface::inverse_map(), libMesh::DofMap::is_evaluable(), and libMesh::DofMap::variable_type().

 {
   // Ensuring that the given point is really in the element is an
   // expensive assert, but as long as debugging is turned on we might
   // as well try to catch a particularly nasty potential error
   libmesh_assert (e.contains_point(p));
 
 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
   if (e.infinite())
     libmesh_not_implemented();
 #endif
 
   // Get the dof map to get the proper indices for our computation
   const DofMap & dof_map = this->get_dof_map();
 
   // Make sure we can evaluate on this element.
   libmesh_assert (dof_map.is_evaluable(e, var));
 
   // Need dof_indices for phi[i][j]
   std::vector<dof_id_type> dof_indices;
 
   // Fill in the dof_indices for our element
   dof_map.dof_indices (&e, dof_indices, var);
 
   // Get the no of dofs associated with this point
   const unsigned int num_dofs = cast_int<unsigned int>
     (dof_indices.size());
 
   FEType fe_type = dof_map.variable_type(var);
 
   // Build a FE again so we can calculate u(p)
   std::unique_ptr<FEBase> fe (FEBase::build(e.dim(), fe_type));
 
   // Map the physical co-ordinates to the master co-ordinates using the inverse_map from fe_interface.h
   // Build a vector of point co-ordinates to send to reinit
   std::vector<Point> coor(1, FEInterface::inverse_map(e.dim(), fe_type, &e, p));
 
   // Get the values of the shape function derivatives
   const std::vector<std::vector<RealGradient>> &  dphi = fe->get_dphi();
 
   // Reinitialize the element and compute the shape function values at coor
   fe->reinit (&e, &coor);
 
   // Get ready to accumulate a gradient
   Gradient grad_u;
 
   for (unsigned int l=0; l<num_dofs; l++)
     {
       grad_u.add_scaled (dphi[l][0], this->current_solution (dof_indices[l]));
     }
 
   return grad_u;
 }

◆ point_gradient() [3/3]

Gradient libMesh::System::point_gradient	(	unsigned int	var,
		const Point &	p,
		const Elem *	e
	)		const

Calls the version of point_gradient() which takes a reference. This function exists only to prevent people from calling the version of point_gradient() that has a boolean third argument, which would result in unnecessary PointLocator calls.

Definition at line 2210 of file system.C.

References point_gradient().

 {
   libmesh_assert(e);
   return this->point_gradient(var, p, *e);
 }

◆ point_hessian() [1/3]

Tensor libMesh::System::point_hessian	(	unsigned int	var,
		const Point &	p,
		const bool	insist_on_success = `true`
	)		const

Returns: The second derivative tensor of the solution variable var at the physical point p in the mesh, similarly to point_value.

Definition at line 2220 of file system.C.

References libMesh::Parallel::Communicator::broadcast(), libMesh::ParallelObject::comm(), libMesh::PointLocatorBase::enable_out_of_mesh_mode(), get_dof_map(), get_mesh(), mesh, libMesh::Parallel::Communicator::min(), libMesh::ParallelObject::n_processors(), libMesh::ParallelObject::processor_id(), and libMesh::DofObject::processor_id().

Referenced by point_hessian().

 {
   // This function must be called on every processor; there's no
   // telling where in the partition p falls.
   parallel_object_only();
 
   // And every processor had better agree about which point we're
   // looking for
 #ifndef NDEBUG
   libmesh_assert(this->comm().verify(p(0)));
 #if LIBMESH_DIM > 1
   libmesh_assert(this->comm().verify(p(1)));
 #endif
 #if LIBMESH_DIM > 2
   libmesh_assert(this->comm().verify(p(2)));
 #endif
 #endif // NDEBUG
 
   // Get a reference to the mesh object associated with the system object that calls this function
   const MeshBase & mesh = this->get_mesh();
 
   // Use an existing PointLocator or create a new one
   std::unique_ptr<PointLocatorBase> locator_ptr = mesh.sub_point_locator();
   PointLocatorBase & locator = *locator_ptr;
 
   if (!insist_on_success || !mesh.is_serial())
     locator.enable_out_of_mesh_mode();
 
   // Get a pointer to the element that contains P
   const Elem * e = locator(p);
 
   Tensor hess_u;
 
   if (e && this->get_dof_map().is_evaluable(*e, var))
     hess_u = point_hessian(var, p, *e);
 
   // If I have an element containing p, then let's let everyone know
   processor_id_type lowest_owner =
     (e && (e->processor_id() == this->processor_id())) ?
     this->processor_id() : this->n_processors();
   this->comm().min(lowest_owner);
 
   // Everybody should get their value from a processor that was able
   // to compute it.
   // If nobody admits owning the point, we may have a problem.
   if (lowest_owner != this->n_processors())
     this->comm().broadcast(hess_u, lowest_owner);
   else
     libmesh_assert(!insist_on_success);
 
   return hess_u;
 }

◆ point_hessian() [2/3]

Tensor libMesh::System::point_hessian	(	unsigned int	var,
		const Point &	p,
		const Elem &	e
	)		const

Returns: The second derivative tensor of the solution variable var at the physical point p in local Elem e in the mesh, similarly to point_value.

Definition at line 2273 of file system.C.

References libMesh::TypeTensor< T >::add_scaled(), libMesh::FEGenericBase< OutputType >::build(), libMesh::Elem::contains_point(), current_solution(), libMesh::Elem::dim(), libMesh::DofMap::dof_indices(), get_dof_map(), libMesh::Elem::infinite(), libMesh::FEInterface::inverse_map(), libMesh::DofMap::is_evaluable(), and libMesh::DofMap::variable_type().

 {
   // Ensuring that the given point is really in the element is an
   // expensive assert, but as long as debugging is turned on we might
   // as well try to catch a particularly nasty potential error
   libmesh_assert (e.contains_point(p));
 
 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
   if (e.infinite())
     libmesh_not_implemented();
 #endif
 
   // Get the dof map to get the proper indices for our computation
   const DofMap & dof_map = this->get_dof_map();
 
   // Make sure we can evaluate on this element.
   libmesh_assert (dof_map.is_evaluable(e, var));
 
   // Need dof_indices for phi[i][j]
   std::vector<dof_id_type> dof_indices;
 
   // Fill in the dof_indices for our element
   dof_map.dof_indices (&e, dof_indices, var);
 
   // Get the no of dofs associated with this point
   const unsigned int num_dofs = cast_int<unsigned int>
     (dof_indices.size());
 
   FEType fe_type = dof_map.variable_type(var);
 
   // Build a FE again so we can calculate u(p)
   std::unique_ptr<FEBase> fe (FEBase::build(e.dim(), fe_type));
 
   // Map the physical co-ordinates to the master co-ordinates using the inverse_map from fe_interface.h
   // Build a vector of point co-ordinates to send to reinit
   std::vector<Point> coor(1, FEInterface::inverse_map(e.dim(), fe_type, &e, p));
 
   // Get the values of the shape function derivatives
   const std::vector<std::vector<RealTensor>> &  d2phi = fe->get_d2phi();
 
   // Reinitialize the element and compute the shape function values at coor
   fe->reinit (&e, &coor);
 
   // Get ready to accumulate a hessian
   Tensor hess_u;
 
   for (unsigned int l=0; l<num_dofs; l++)
     {
       hess_u.add_scaled (d2phi[l][0], this->current_solution (dof_indices[l]));
     }
 
   return hess_u;
 }

◆ point_hessian() [3/3]

Tensor libMesh::System::point_hessian	(	unsigned int	var,
		const Point &	p,
		const Elem *	e
	)		const

Calls the version of point_hessian() which takes a reference. This function exists only to prevent people from calling the version of point_hessian() that has a boolean third argument, which would result in unnecessary PointLocator calls.

Definition at line 2329 of file system.C.

References point_hessian().

 {
   libmesh_assert(e);
   return this->point_hessian(var, p, *e);
 }

◆ point_value() [1/3]

Number libMesh::System::point_value	(	unsigned int	var,
		const Point &	p,
		const bool	insist_on_success = `true`
	)		const

Returns: The value of the solution variable var at the physical point p in the mesh, without knowing a priori which element contains p.

Note: This function uses MeshBase::sub_point_locator(); users may or may not want to call MeshBase::clear_point_locator() afterward. Also, point_locator() is expensive (N log N for initial construction, log N for evaluations). Avoid using this function in any context where you are already looping over elements.

Because the element containing p may lie on any processor, this function is parallel-only.

By default this method expects the point to reside inside the domain and will abort if no element can be found which contains p. The optional parameter insist_on_success can be set to false to allow the method to return 0 when the point is not located.

Definition at line 1993 of file system.C.

References libMesh::Parallel::Communicator::broadcast(), libMesh::ParallelObject::comm(), libMesh::PointLocatorBase::enable_out_of_mesh_mode(), get_dof_map(), get_mesh(), mesh, libMesh::Parallel::Communicator::min(), libMesh::ParallelObject::n_processors(), libMesh::ParallelObject::processor_id(), and libMesh::DofObject::processor_id().

Referenced by point_value().

 {
   // This function must be called on every processor; there's no
   // telling where in the partition p falls.
   parallel_object_only();
 
   // And every processor had better agree about which point we're
   // looking for
 #ifndef NDEBUG
   libmesh_assert(this->comm().verify(p(0)));
 #if LIBMESH_DIM > 1
   libmesh_assert(this->comm().verify(p(1)));
 #endif
 #if LIBMESH_DIM > 2
   libmesh_assert(this->comm().verify(p(2)));
 #endif
 #endif // NDEBUG
 
   // Get a reference to the mesh object associated with the system object that calls this function
   const MeshBase & mesh = this->get_mesh();
 
   // Use an existing PointLocator or create a new one
   std::unique_ptr<PointLocatorBase> locator_ptr = mesh.sub_point_locator();
   PointLocatorBase & locator = *locator_ptr;
 
   if (!insist_on_success || !mesh.is_serial())
     locator.enable_out_of_mesh_mode();
 
   // Get a pointer to the element that contains P
   const Elem * e = locator(p);
 
   Number u = 0;
 
   if (e && this->get_dof_map().is_evaluable(*e, var))
     u = point_value(var, p, *e);
 
   // If I have an element containing p, then let's let everyone know
   processor_id_type lowest_owner =
     (e && (e->processor_id() == this->processor_id())) ?
     this->processor_id() : this->n_processors();
   this->comm().min(lowest_owner);
 
   // Everybody should get their value from a processor that was able
   // to compute it.
   // If nobody admits owning the point, we have a problem.
   if (lowest_owner != this->n_processors())
     this->comm().broadcast(u, lowest_owner);
   else
     libmesh_assert(!insist_on_success);
 
   return u;
 }

◆ point_value() [2/3]

Number libMesh::System::point_value	(	unsigned int	var,
		const Point &	p,
		const Elem &	e
	)		const

Returns: The value of the solution variable var at the physical point p contained in local Elem e

This version of point_value can be run in serial, but assumes e is in the local mesh partition or is algebraically ghosted.

Definition at line 2046 of file system.C.

References libMesh::FEInterface::compute_data(), libMesh::Elem::contains_point(), current_solution(), libMesh::Elem::dim(), get_dof_map(), get_equation_systems(), and libMesh::FEInterface::inverse_map().

 {
   // Ensuring that the given point is really in the element is an
   // expensive assert, but as long as debugging is turned on we might
   // as well try to catch a particularly nasty potential error
   libmesh_assert (e.contains_point(p));
 
   // Get the dof map to get the proper indices for our computation
   const DofMap & dof_map = this->get_dof_map();
 
   // Make sure we can evaluate on this element.
   libmesh_assert (dof_map.is_evaluable(e, var));
 
   // Need dof_indices for phi[i][j]
   std::vector<dof_id_type> dof_indices;
 
   // Fill in the dof_indices for our element
   dof_map.dof_indices (&e, dof_indices, var);
 
   // Get the no of dofs associated with this point
   const unsigned int num_dofs = cast_int<unsigned int>
     (dof_indices.size());
 
   FEType fe_type = dof_map.variable_type(var);
 
   // Map the physical co-ordinates to the master co-ordinates using the inverse_map from fe_interface.h.
   Point coor = FEInterface::inverse_map(e.dim(), fe_type, &e, p);
 
   // get the shape function value via the FEInterface to also handle the case
   // of infinite elements correcly, the shape function is not fe->phi().
   FEComputeData fe_data(this->get_equation_systems(), coor);
   FEInterface::compute_data(e.dim(), fe_type, &e, fe_data);
 
   // Get ready to accumulate a value
   Number u = 0;
 
   for (unsigned int l=0; l<num_dofs; l++)
     {
       u += fe_data.shape[l]*this->current_solution (dof_indices[l]);
     }
 
   return u;
 }

◆ point_value() [3/3]

Number libMesh::System::point_value	(	unsigned int	var,
		const Point &	p,
		const Elem *	e
	)		const

Calls the version of point_value() which takes a reference. This function exists only to prevent people from calling the version of point_value() that has a boolean third argument, which would result in unnecessary PointLocator calls.

Definition at line 2092 of file system.C.

References point_value().

 {
   libmesh_assert(e);
   return this->point_value(var, p, *e);
 }

◆ print_info()

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

staticinherited

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

Definition at line 87 of file reference_counter.C.

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

 {
   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 101 of file parallel_object.h.

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

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

libMesh::ParallelObject::_communicator

const Parallel::Communicator & _communicator

Definition: parallel_object.h:107

libMesh::Parallel::Communicator::rank

processor_id_type rank() const

Definition: communicator.h:173

◆ project_solution() [1/3]

void libMesh::System::project_solution	(	FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`
	)		const

Projects arbitrary functions onto the current solution. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

This method projects an arbitrary function onto the solution via L2 projections and nodal interpolations on each element.

Definition at line 810 of file system_projection.C.

 {
   this->project_vector(*solution, f, g);
 
   solution->localize(*current_local_solution, _dof_map->get_send_list());
 }

◆ project_solution() [2/3]

void libMesh::System::project_solution	(	FEMFunctionBase< Number > *	f,
		FEMFunctionBase< Gradient > *	g = `nullptr`
	)		const

Projects arbitrary functions onto the current solution. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

This method projects an arbitrary function onto the solution via L2 projections and nodal interpolations on each element.

Definition at line 823 of file system_projection.C.

 {
   this->project_vector(*solution, f, g);
 
   solution->localize(*current_local_solution, _dof_map->get_send_list());
 }

◆ project_solution() [3/3]

void libMesh::System::project_solution	(	ValueFunctionPointer	fptr,
		GradientFunctionPointer	gptr,
		const Parameters &	parameters
	)		const

This method projects an arbitrary function onto the solution via L2 projections and nodal interpolations on each element.

Definition at line 796 of file system_projection.C.

 {
   WrappedFunction<Number> f(*this, fptr, &parameters);
   WrappedFunction<Gradient> g(*this, gptr, &parameters);
   this->project_solution(&f, &g);
 }

◆ project_solution_on_reinit()

bool& libMesh::System::project_solution_on_reinit ( void )

inline

Tells the System whether or not to project the solution vector onto new grids when the system is reinitialized. The solution will be projected unless project_solution_on_reinit() = false is called.

Definition at line 794 of file system.h.

References _solution_projection.

Referenced by libMesh::UniformRefinementEstimator::_estimate_error(), libMesh::AdjointRefinementEstimator::estimate_error(), and libMesh::MemorySolutionHistory::store().

795 { return _solution_projection; }

libMesh::System::_solution_projection

bool _solution_projection

Definition: system.h:1959

◆ project_vector() [1/5]

void libMesh::System::project_vector	(	NumericVector< Number > &	new_vector,
		FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`,
		int	is_adjoint = `-1`
	)		const

Projects arbitrary functions onto a vector of degree of freedom values for the current system. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

This method projects an arbitrary function via L2 projections and nodal interpolations on each element.

Definition at line 851 of file system_projection.C.

Referenced by libMesh::NewmarkSolver::project_initial_accel(), libMesh::SecondOrderUnsteadySolver::project_initial_rate(), and restrict_vectors().

 {
   LOG_SCOPE ("project_vector(FunctionBase)", "System");
 
   libmesh_assert(f);
 
   WrappedFunctor<Number> f_fem(*f);
 
   if (g)
     {
       WrappedFunctor<Gradient> g_fem(*g);
 
       this->project_vector(new_vector, &f_fem, &g_fem, is_adjoint);
     }
   else
     this->project_vector(new_vector, &f_fem, nullptr, is_adjoint);
 }

◆ project_vector() [2/5]

void libMesh::System::project_vector	(	NumericVector< Number > &	new_vector,
		FEMFunctionBase< Number > *	f,
		FEMFunctionBase< Gradient > *	g = `nullptr`,
		int	is_adjoint = `-1`
	)		const

Projects arbitrary functions onto a vector of degree of freedom values for the current system. The function value f and its gradient g are user-provided cloneable functors. A gradient g is only required/used for projecting onto finite element spaces with continuous derivatives. If non-default Parameters are to be used, they can be provided in the parameters argument.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

This method projects an arbitrary function via L2 projections and nodal interpolations on each element.

Definition at line 877 of file system_projection.C.

References libMesh::NumericVector< T >::close(), libMesh::FEMFunctionBase< Output >::component(), libMesh::Utility::iota(), n_vars, libMesh::Threads::parallel_for(), libMesh::FEMContext::pre_fe_reinit(), libMesh::SCALAR, libMesh::DofMap::SCALAR_dof_indices(), and libMesh::NumericVector< T >::set().

 {
   LOG_SCOPE ("project_fem_vector()", "System");
 
   libmesh_assert (f);
 
   ConstElemRange active_local_range
     (this->get_mesh().active_local_elements_begin(),
      this->get_mesh().active_local_elements_end() );
 
   VectorSetAction<Number> setter(new_vector);
 
   const unsigned int n_variables = this->n_vars();
 
   std::vector<unsigned int> vars(n_variables);
   std::iota(vars.begin(), vars.end(), 0);
 
   // Use a typedef to make the calling sequence for parallel_for() a bit more readable
   typedef
     GenericProjector<FEMFunctionWrapper<Number>, FEMFunctionWrapper<Gradient>,
                      Number, VectorSetAction<Number>> FEMProjector;
 
   FEMFunctionWrapper<Number> fw(*f);
 
   if (g)
     {
       FEMFunctionWrapper<Gradient> gw(*g);
 
       Threads::parallel_for
         (active_local_range,
          FEMProjector(*this, fw, &gw, setter, vars));
     }
   else
     Threads::parallel_for
       (active_local_range,
        FEMProjector(*this, fw, nullptr, setter, vars));
 
   // Also, load values into the SCALAR dofs
   // Note: We assume that all SCALAR dofs are on the
   // processor with highest ID
   if (this->processor_id() == (this->n_processors()-1))
     {
       // FIXME: Do we want to first check for SCALAR vars before building this? [PB]
       FEMContext context( *this );
 
       const DofMap & dof_map = this->get_dof_map();
       for (unsigned int var=0; var<this->n_vars(); var++)
         if (this->variable(var).type().family == SCALAR)
           {
             // FIXME: We reinit with an arbitrary element in case the user
             //        doesn't override FEMFunctionBase::component. Is there
             //        any use case we're missing? [PB]
             Elem * el = const_cast<Elem *>(*(this->get_mesh().active_local_elements_begin()));
             context.pre_fe_reinit(*this, el);
 
             std::vector<dof_id_type> SCALAR_indices;
             dof_map.SCALAR_dof_indices (SCALAR_indices, var);
             const unsigned int n_SCALAR_dofs =
               cast_int<unsigned int>(SCALAR_indices.size());
 
             for (unsigned int i=0; i<n_SCALAR_dofs; i++)
               {
                 const dof_id_type global_index = SCALAR_indices[i];
                 const unsigned int component_index =
                   this->variable_scalar_number(var,i);
 
                 new_vector.set(global_index, f->component(context, component_index, Point(), this->time));
               }
           }
     }
 
   new_vector.close();
 
 #ifdef LIBMESH_ENABLE_CONSTRAINTS
   if (is_adjoint == -1)
     this->get_dof_map().enforce_constraints_exactly(*this, &new_vector);
   else if (is_adjoint >= 0)
     this->get_dof_map().enforce_adjoint_constraints_exactly(new_vector,
                                                             is_adjoint);
 #endif
 }

◆ project_vector() [3/5]

void libMesh::System::project_vector	(	ValueFunctionPointer	fptr,
		GradientFunctionPointer	gptr,
		const Parameters &	parameters,
		NumericVector< Number > &	new_vector,
		int	is_adjoint = `-1`
	)		const

Projects arbitrary functions onto a vector of degree of freedom values for the current system. The function value fptr and its gradient gptr are represented by function pointers. A gradient gptr is only required/used for projecting onto finite element spaces with continuous derivatives.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

This method projects an arbitrary function via L2 projections and nodal interpolations on each element.

Definition at line 836 of file system_projection.C.

 {
   WrappedFunction<Number> f(*this, fptr, &parameters);
   WrappedFunction<Gradient> g(*this, gptr, &parameters);
   this->project_vector(new_vector, &f, &g, is_adjoint);
 }

◆ project_vector() [4/5]

void libMesh::System::project_vector	(	NumericVector< Number > &	vector,
		int	is_adjoint = `-1`
	)		const

protected

Projects the vector defined on the old mesh onto the new mesh.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

Definition at line 212 of file system_projection.C.

References libMesh::NumericVector< T >::clone().

 {
   // Create a copy of the vector, which currently
   // contains the old data.
   std::unique_ptr<NumericVector<Number>>
     old_vector (vector.clone());
 
   // Project the old vector to the new vector
   this->project_vector (*old_vector, vector, is_adjoint);
 }

◆ project_vector() [5/5]

void libMesh::System::project_vector	(	const NumericVector< Number > &	,
		NumericVector< Number > &	,
		int	is_adjoint = `-1`
	)		const

protected

Projects the vector defined on the old mesh onto the new mesh. The original vector is unchanged and the new vector is passed through the second argument.

Constrain the new vector using the requested adjoint rather than primal constraints if is_adjoint is non-negative.

◆ projection_matrix()

void libMesh::System::projection_matrix ( SparseMatrix< Number > & proj_mat ) const

This method creates a projection matrix which corresponds to the operation of project_vector between old and new solution spaces.

Heterogeneous Dirichlet boundary conditions are not taken into account here; if this matrix is used for prolongation (mesh refinement) on a side with a heterogeneous BC, the newly created degrees of freedom on that side will still match the coarse grid approximation of the BC, not the fine grid approximation.

This method creates a projection matrix which corresponds to the operation of project_vector between old and new solution spaces.

Definition at line 730 of file system_projection.C.

References libMesh::Utility::iota(), n_vars, libMesh::Threads::parallel_for(), libMesh::SCALAR, libMesh::DofMap::SCALAR_dof_indices(), and libMesh::SparseMatrix< T >::set().

 {
   LOG_SCOPE ("projection_matrix()", "System");
 
   const unsigned int n_variables = this->n_vars();
 
   if (n_variables)
     {
       ConstElemRange active_local_elem_range
         (this->get_mesh().active_local_elements_begin(),
          this->get_mesh().active_local_elements_end());
 
       std::vector<unsigned int> vars(n_variables);
       std::iota(vars.begin(), vars.end(), 0);
 
       // Use a typedef to make the calling sequence for parallel_for() a bit more readable
       typedef OldSolutionCoefs<Real, &FEMContext::point_value> OldSolutionValueCoefs;
       typedef OldSolutionCoefs<RealGradient, &FEMContext::point_gradient> OldSolutionGradientCoefs;
 
       typedef
         GenericProjector<OldSolutionValueCoefs,
                          OldSolutionGradientCoefs,
                          DynamicSparseNumberArray<Real,dof_id_type>,
                          MatrixFillAction<Real, Number> > ProjMatFiller;
 
       OldSolutionValueCoefs    f(*this);
       OldSolutionGradientCoefs g(*this);
       MatrixFillAction<Real, Number> setter(proj_mat);
 
       Threads::parallel_for (active_local_elem_range,
                              ProjMatFiller(*this, f, &g, setter, vars));
 
       // Set the SCALAR dof transfer entries too.
       // Note: We assume that all SCALAR dofs are on the
       // processor with highest ID
       if (this->processor_id() == (this->n_processors()-1))
         {
           const DofMap & dof_map = this->get_dof_map();
           for (unsigned int var=0; var<this->n_vars(); var++)
             if (this->variable(var).type().family == SCALAR)
               {
                 // We can just map SCALAR dofs directly across
                 std::vector<dof_id_type> new_SCALAR_indices, old_SCALAR_indices;
                 dof_map.SCALAR_dof_indices (new_SCALAR_indices, var, false);
                 dof_map.SCALAR_dof_indices (old_SCALAR_indices, var, true);
                 const unsigned int new_n_dofs =
                   cast_int<unsigned int>(new_SCALAR_indices.size());
 
                 for (unsigned int i=0; i<new_n_dofs; i++)
                   {
                     proj_mat.set( new_SCALAR_indices[i],
                                   old_SCALAR_indices[i], 1);
                   }
               }
         }
     }
 }

◆ prolong_vectors()

void libMesh::System::prolong_vectors ( )

virtual

Prolong vectors after the mesh has refined

Definition at line 380 of file system.C.

References restrict_vectors().

Referenced by libMesh::EquationSystems::reinit_solutions().

 {
 #ifdef LIBMESH_ENABLE_AMR
   // Currently project_vector handles both restriction and prolongation
   this->restrict_vectors();
 #endif
 }

◆ qoi_parameter_hessian()

void libMesh::System::qoi_parameter_hessian	(	const QoISet &	qoi_indices,
		const ParameterVector &	parameters,
		SensitivityData &	hessian
	)

inlinevirtual

For each of the system's quantities of interest q in qoi[qoi_indices], and for a vector of parameters p, the parameter sensitivity Hessian H_ij is defined as H_ij = (d^2 q)/(d p_i d p_j) This Hessian is the output of this method, where for each q_i, H_jk is stored in hessian.second_derivative(i,j,k).

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2334 of file system.h.

 {
   libmesh_not_implemented();
 }

◆ qoi_parameter_hessian_vector_product()

void libMesh::System::qoi_parameter_hessian_vector_product	(	const QoISet &	qoi_indices,
		const ParameterVector &	parameters,
		const ParameterVector &	vector,
		SensitivityData &	product
	)

inlinevirtual

For each of the system's quantities of interest q in qoi[qoi_indices], and for a vector of parameters p, the parameter sensitivity Hessian H_ij is defined as H_ij = (d^2 q)/(d p_i d p_j) The Hessian-vector product, for a vector v_k in parameter space, is S_j = H_jk v_k This product is the output of this method, where for each q_i, S_j is stored in sensitivities[i][j].

This method is only implemented in some derived classes.

Reimplemented in libMesh::ImplicitSystem.

Definition at line 2343 of file system.h.

 {
   libmesh_not_implemented();
 }

◆ qoi_parameter_sensitivity()

void libMesh::System::qoi_parameter_sensitivity	(	const QoISet &	qoi_indices,
		const ParameterVector &	parameters,
		SensitivityData &	sensitivities
	)

virtual

Solves for the derivative of each of the system's quantities of interest q in qoi[qoi_indices] with respect to each parameter in parameters, placing the result for qoi i and parameter j into sensitivities[i][j].

Note: parameters is a const vector, not a vector-of-const; parameter values in this vector need to be mutable for finite differencing to work.

Automatically chooses the forward method for problems with more quantities of interest than parameters, or the adjoint method otherwise.

This method is only usable in derived classes which override an implementation.

Definition at line 498 of file system.C.

References adjoint_qoi_parameter_sensitivity(), forward_qoi_parameter_sensitivity(), libMesh::ParameterVector::size(), and libMesh::QoISet::size().

 {
   // Forward sensitivities are more efficient for Nq > Np
   if (qoi_indices.size(*this) > parameters.size())
     forward_qoi_parameter_sensitivity(qoi_indices, parameters, sensitivities);
   // Adjoint sensitivities are more efficient for Np > Nq,
   // and an adjoint may be more reusable than a forward
   // solution sensitivity in the Np == Nq case.
   else
     adjoint_qoi_parameter_sensitivity(qoi_indices, parameters, sensitivities);
 }

◆ re_update()

void libMesh::System::re_update ( )

virtual

Re-update the local values when the mesh has changed. This method takes the data updated by update() and makes it up-to-date on the current mesh.

Reimplemented in libMesh::TransientSystem< RBConstruction >.

Definition at line 429 of file system.C.

References current_local_solution, get_dof_map(), libMesh::DofMap::get_send_list(), n_vars(), and solution.

 {
   parallel_object_only();
 
   // If this system is empty... don't do anything!
   if (!this->n_vars())
     return;
 
   const std::vector<dof_id_type> & send_list = this->get_dof_map().get_send_list ();
 
   // Check sizes
   libmesh_assert_equal_to (current_local_solution->size(), solution->size());
   // Not true with ghosted vectors
   // libmesh_assert_equal_to (current_local_solution->local_size(), solution->size());
   // libmesh_assert (!send_list.empty());
   libmesh_assert_less_equal (send_list.size(), solution->size());
 
   // Create current_local_solution from solution.  This will
   // put a local copy of solution into current_local_solution.
   solution->localize (*current_local_solution, send_list);
 }

◆ read_header()

void libMesh::System::read_header	(	Xdr &	io,
		const std::string &	version,
		const bool	read_header = `true`,
		const bool	read_additional_data = `true`,
		const bool	read_legacy_format = `false`
	)

Reads the basic data header for this System.

Definition at line 115 of file system_io.C.

References _additional_data_written, _written_var_indices, add_variable(), add_vector(), libMesh::Parallel::Communicator::broadcast(), clear(), libMesh::ParallelObject::comm(), libMesh::Xdr::data(), libMesh::FEType::family, get_mesh(), libMesh::OrderWrapper::get_order(), libMesh::FEType::inf_map, libMesh::MeshBase::mesh_dimension(), libMesh::MONOMIAL, libMesh::on_command_line(), libMesh::FEType::order, libMesh::out, libMesh::ParallelObject::processor_id(), libMesh::FEType::radial_family, libMesh::FEType::radial_order, libMesh::Xdr::reading(), variable_number(), libMesh::Xdr::version(), and libMesh::XYZ.

Referenced by libMesh::EquationSystems::_read_impl().

 {
   // This method implements the input of a
   // System object, embedded in the output of
   // an EquationSystems<T_sys>.  This warrants some
   // documentation.  The output file essentially
   // consists of 5 sections:
   //
   // for this system
   //
   //   5.) The number of variables in the system (unsigned int)
   //
   //   for each variable in the system
   //
   //     6.) The name of the variable (string)
   //
   //     6.1.) Variable subdomains
   //
   //     7.) Combined in an FEType:
   //         - The approximation order(s) of the variable
   //           (Order Enum, cast to int/s)
   //         - The finite element family/ies of the variable
   //           (FEFamily Enum, cast to int/s)
   //
   //   end variable loop
   //
   //   8.) The number of additional vectors (unsigned int),
   //
   //     for each additional vector in the system object
   //
   //     9.) the name of the additional vector  (string)
   //
   // end system
   libmesh_assert (io.reading());
 
   // Possibly clear data structures and start from scratch.
   if (read_header_in)
     this->clear ();
 
   // Figure out if we need to read infinite element information.
   // This will be true if the version string contains " with infinite elements"
   const bool read_ifem_info =
     (version.rfind(" with infinite elements") < version.size()) ||
     libMesh::on_command_line ("--read-ifem-systems");
 
 
   {
     // 5.)
     // Read the number of variables in the system
     unsigned int nv=0;
     if (this->processor_id() == 0)
       io.data (nv);
     this->comm().broadcast(nv);
 
     _written_var_indices.clear();
     _written_var_indices.resize(nv, 0);
 
     for (unsigned int var=0; var<nv; var++)
       {
         // 6.)
         // Read the name of the var-th variable
         std::string var_name;
         if (this->processor_id() == 0)
           io.data (var_name);
         this->comm().broadcast(var_name);
 
         // 6.1.)
         std::set<subdomain_id_type> domains;
         if (io.version() >= LIBMESH_VERSION_ID(0,7,2))
           {
             std::vector<subdomain_id_type> domain_array;
             if (this->processor_id() == 0)
               io.data (domain_array);
             for (const auto & id : domain_array)
               domains.insert(id);
           }
         this->comm().broadcast(domains);
 
         // 7.)
         // Read the approximation order(s) of the var-th variable
         int order=0;
         if (this->processor_id() == 0)
           io.data (order);
         this->comm().broadcast(order);
 
 
         // do the same for infinite element radial_order
         int rad_order=0;
         if (read_ifem_info)
           {
             if (this->processor_id() == 0)
               io.data(rad_order);
             this->comm().broadcast(rad_order);
           }
 
         // Read the finite element type of the var-th variable
         int fam=0;
         if (this->processor_id() == 0)
           io.data (fam);
         this->comm().broadcast(fam);
         FEType type;
         type.order  = static_cast<Order>(order);
         type.family = static_cast<FEFamily>(fam);
 
         // Check for incompatibilities.  The shape function indexing was
         // changed for the monomial and xyz finite element families to
         // simplify extension to arbitrary p.  The consequence is that
         // old restart files will not be read correctly.  This is expected
         // to be an unlikely occurence, but catch it anyway.
         if (read_legacy_format)
           if ((type.family == MONOMIAL || type.family == XYZ) &&
               ((type.order.get_order() > 2 && this->get_mesh().mesh_dimension() == 2) ||
                (type.order.get_order() > 1 && this->get_mesh().mesh_dimension() == 3)))
             {
               libmesh_here();
               libMesh::out << "*****************************************************************\n"
                            << "* WARNING: reading a potentially incompatible restart file!!!   *\n"
                            << "*  contact libmesh-users@lists.sourceforge.net for more details *\n"
                            << "*****************************************************************"
                            << std::endl;
             }
 
         // Read additional information for infinite elements
         int radial_fam=0;
         int i_map=0;
         if (read_ifem_info)
           {
             if (this->processor_id() == 0)
               io.data (radial_fam);
             this->comm().broadcast(radial_fam);
             if (this->processor_id() == 0)
               io.data (i_map);
             this->comm().broadcast(i_map);
           }
 
 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
 
         type.radial_order  = static_cast<Order>(rad_order);
         type.radial_family = static_cast<FEFamily>(radial_fam);
         type.inf_map       = static_cast<InfMapType>(i_map);
 
 #endif
 
         if (read_header_in)
           {
             if (domains.empty())
               _written_var_indices[var] = this->add_variable (var_name, type);
             else
               _written_var_indices[var] = this->add_variable (var_name, type, &domains);
           }
         else
           _written_var_indices[var] = this->variable_number(var_name);
       }
   }
 
   // 8.)
   // Read the number of additional vectors.
   unsigned int nvecs=0;
   if (this->processor_id() == 0)
     io.data (nvecs);
   this->comm().broadcast(nvecs);
 
   // If nvecs > 0, this means that write_additional_data
   // was true when this file was written.  We will need to
   // make use of this fact later.
   this->_additional_data_written = nvecs;
 
   for (unsigned int vec=0; vec<nvecs; vec++)
     {
       // 9.)
       // Read the name of the vec-th additional vector
       std::string vec_name;
       if (this->processor_id() == 0)
         io.data (vec_name);
       this->comm().broadcast(vec_name);
 
       if (read_additional_data)
         {
           // Systems now can handle adding post-initialization vectors
           //  libmesh_assert(this->_can_add_vectors);
           // Some systems may have added their own vectors already
           //  libmesh_assert_equal_to (this->_vectors.count(vec_name), 0);
 
           this->add_vector(vec_name);
         }
     }
 }

◆ read_legacy_data()

void libMesh::System::read_legacy_data	(	Xdr &	io,
		const bool	read_additional_data = `true`
	)

Reads additional data, namely vectors, for this System.

Deprecated:: The ability to read XDR data files in the old (aka "legacy") XDR format has been deprecated for many years, this capability may soon disappear altogether.

Definition at line 310 of file system_io.C.

References _additional_data_written, _vectors, _written_var_indices, libMesh::Parallel::Communicator::broadcast(), libMesh::ParallelObject::comm(), libMesh::Xdr::data(), get_mesh(), libMesh::DofObject::invalid_id, n_dofs(), n_vars(), number(), libMesh::ParallelObject::processor_id(), libMesh::Xdr::reading(), solution, and libMesh::zero.

 {
   libmesh_deprecated();
 
   // This method implements the output of the vectors
   // contained in this System object, embedded in the
   // output of an EquationSystems<T_sys>.
   //
   //   10.) The global solution vector, re-ordered to be node-major
   //       (More on this later.)
   //
   //      for each additional vector in the object
   //
   //      11.) The global additional vector, re-ordered to be
   //           node-major (More on this later.)
   libmesh_assert (io.reading());
 
   // read and reordering buffers
   std::vector<Number> global_vector;
   std::vector<Number> reordered_vector;
 
   // 10.)
   // Read and set the solution vector
   {
     if (this->processor_id() == 0)
       io.data (global_vector);
     this->comm().broadcast(global_vector);
 
     // Remember that the stored vector is node-major.
     // We need to put it into whatever application-specific
     // ordering we may have using the dof_map.
     reordered_vector.resize(global_vector.size());
 
     //libMesh::out << "global_vector.size()=" << global_vector.size() << std::endl;
     //libMesh::out << "this->n_dofs()=" << this->n_dofs() << std::endl;
 
     libmesh_assert_equal_to (global_vector.size(), this->n_dofs());
 
     dof_id_type cnt=0;
 
     const unsigned int sys = this->number();
     const unsigned int nv  = cast_int<unsigned int>
       (this->_written_var_indices.size());
     libmesh_assert_less_equal (nv, this->n_vars());
 
     for (unsigned int data_var=0; data_var<nv; data_var++)
       {
         const unsigned int var = _written_var_indices[data_var];
 
         // First reorder the nodal DOF values
         for (auto & node : this->get_mesh().node_ptr_range())
           for (unsigned int index=0; index<node->n_comp(sys,var); index++)
             {
               libmesh_assert_not_equal_to (node->dof_number(sys, var, index),
                                            DofObject::invalid_id);
 
               libmesh_assert_less (cnt, global_vector.size());
 
               reordered_vector[node->dof_number(sys, var, index)] =
                 global_vector[cnt++];
             }
 
         // Then reorder the element DOF values
         for (auto & elem : this->get_mesh().active_element_ptr_range())
           for (unsigned int index=0; index<elem->n_comp(sys,var); index++)
             {
               libmesh_assert_not_equal_to (elem->dof_number(sys, var, index),
                                            DofObject::invalid_id);
 
               libmesh_assert_less (cnt, global_vector.size());
 
               reordered_vector[elem->dof_number(sys, var, index)] =
                 global_vector[cnt++];
             }
       }
 
     *(this->solution) = reordered_vector;
   }
 
   // For each additional vector, simply go through the list.
   // ONLY attempt to do this IF additional data was actually
   // written to the file for this system (controlled by the
   // _additional_data_written flag).
   if (this->_additional_data_written)
     {
       const std::size_t nvecs = this->_vectors.size();
 
       // If the number of additional vectors written is non-zero, and
       // the number of additional vectors we have is non-zero, and
       // they don't match, then something is wrong and we can't be
       // sure we're reading data into the correct places.
       if (read_additional_data && nvecs &&
           nvecs != this->_additional_data_written)
         libmesh_error_msg
           ("Additional vectors in file do not match system");
 
       std::map<std::string, NumericVector<Number> *>::iterator
         pos = this->_vectors.begin();
 
       for (std::size_t i = 0; i != this->_additional_data_written; ++i)
         {
           // 11.)
           // Read the values of the vec-th additional vector.
           // Prior do _not_ clear, but fill with zero, since the
           // additional vectors _have_ to have the same size
           // as the solution vector
           std::fill (global_vector.begin(), global_vector.end(), libMesh::zero);
 
           if (this->processor_id() == 0)
             io.data (global_vector);
 
           // If read_additional_data==true and we have additional vectors,
           // then we will keep this vector data; otherwise we are going to
           // throw it away.
           if (read_additional_data && nvecs)
             {
               this->comm().broadcast(global_vector);
 
               // Remember that the stored vector is node-major.
               // We need to put it into whatever application-specific
               // ordering we may have using the dof_map.
               std::fill (reordered_vector.begin(),
                          reordered_vector.end(),
                          libMesh::zero);
 
               reordered_vector.resize(global_vector.size());
 
               libmesh_assert_equal_to (global_vector.size(), this->n_dofs());
 
               dof_id_type cnt=0;
 
               const unsigned int sys = this->number();
               const unsigned int nv  = cast_int<unsigned int>
                 (this->_written_var_indices.size());
               libmesh_assert_less_equal (nv, this->n_vars());
 
               for (unsigned int data_var=0; data_var<nv; data_var++)
                 {
                   const unsigned int var = _written_var_indices[data_var];
                   // First reorder the nodal DOF values
                   for (auto & node : this->get_mesh().node_ptr_range())
                     for (unsigned int index=0; index<node->n_comp(sys,var); index++)
                       {
                         libmesh_assert_not_equal_to (node->dof_number(sys, var, index),
                                                      DofObject::invalid_id);
 
                         libmesh_assert_less (cnt, global_vector.size());
 
                         reordered_vector[node->dof_number(sys, var, index)] =
                           global_vector[cnt++];
                       }
 
                   // Then reorder the element DOF values
                   for (auto & elem : this->get_mesh().active_element_ptr_range())
                     for (unsigned int index=0; index<elem->n_comp(sys,var); index++)
                       {
                         libmesh_assert_not_equal_to (elem->dof_number(sys, var, index),
                                                      DofObject::invalid_id);
 
                         libmesh_assert_less (cnt, global_vector.size());
 
                         reordered_vector[elem->dof_number(sys, var, index)] =
                           global_vector[cnt++];
                       }
                 }
 
               // use the overloaded operator=(std::vector) to assign the values
               *(pos->second) = reordered_vector;
             }
 
           // If we've got vectors then we need to be iterating through
           // those too
           if (pos != this->_vectors.end())
             ++pos;
         }
     } // end if (_additional_data_written)
 }

◆ read_parallel_data() [1/2]

template<typename InValType >

void libMesh::System::read_parallel_data	(	Xdr &	io,
		const bool	read_additional_data
	)

Reads additional data, namely vectors, for this System. This method may safely be called on a distributed-memory mesh. This method will read an individual file for each processor in the simulation where the local solution components for that processor are stored.

This method implements the output of the vectors contained in this System object, embedded in the output of an EquationSystems<T_sys>.

9.) The global solution vector, re-ordered to be node-major (More on this later.)

for each additional vector in the object

10.) The global additional vector, re-ordered to be node-major (More on this later.)

Note that the actual IO is handled through the Xdr class (to be renamed later?) which provides a uniform interface to both the XDR (eXternal Data Representation) interface and standard ASCII output. Thus this one section of code will read XDR or ASCII files with no changes.

Definition at line 493 of file system_io.C.

References _additional_data_written, _vectors, _written_var_indices, libMesh::Xdr::data(), libMesh::FEType::family, get_dof_map(), get_mesh(), libMesh::DofObject::invalid_id, libMesh::Xdr::is_open(), libMesh::ParallelObject::n_processors(), n_vars(), number(), libMesh::ParallelObject::processor_id(), libMesh::Xdr::reading(), libMesh::SCALAR, libMesh::DofMap::SCALAR_dof_indices(), solution, libMesh::Variable::type(), and variable().

 {
   // PerfLog pl("IO Performance",false);
   // pl.push("read_parallel_data");
   dof_id_type total_read_size = 0;
 
   libmesh_assert (io.reading());
   libmesh_assert (io.is_open());
 
   // build the ordered nodes and element maps.
   // when writing/reading parallel files we need to iterate
   // over our nodes/elements in order of increasing global id().
   // however, this is not guaranteed to be ordering we obtain
   // by using the node_iterators/element_iterators directly.
   // so build a set, sorted by id(), that provides the ordering.
   // further, for memory economy build the set but then transfer
   // its contents to vectors, which will be sorted.
   std::vector<const DofObject *> ordered_nodes, ordered_elements;
   {
     std::set<const DofObject *, CompareDofObjectsByID>
       ordered_nodes_set (this->get_mesh().local_nodes_begin(),
                          this->get_mesh().local_nodes_end());
 
     ordered_nodes.insert(ordered_nodes.end(),
                          ordered_nodes_set.begin(),
                          ordered_nodes_set.end());
   }
   {
     std::set<const DofObject *, CompareDofObjectsByID>
       ordered_elements_set (this->get_mesh().local_elements_begin(),
                             this->get_mesh().local_elements_end());
 
     ordered_elements.insert(ordered_elements.end(),
                             ordered_elements_set.begin(),
                             ordered_elements_set.end());
   }
 
   //  std::vector<Number> io_buffer;
   std::vector<InValType> io_buffer;
 
   // 9.)
   //
   // Actually read the solution components
   // for the ith system to disk
   io.data(io_buffer);
 
   total_read_size += cast_int<dof_id_type>(io_buffer.size());
 
   const unsigned int sys_num = this->number();
   const unsigned int nv      = cast_int<unsigned int>
     (this->_written_var_indices.size());
   libmesh_assert_less_equal (nv, this->n_vars());
 
   

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ const_vectors_iterator

◆ Counts

◆ GradientFunctionPointer

◆ sys_type

◆ ValueFunctionPointer

◆ vectors_iterator

Constructor & Destructor Documentation

◆ System() [1/2]

◆ ~System()

◆ System() [2/2]

Member Function Documentation

◆ activate()

◆ active()

◆ add_adjoint_rhs()

◆ add_adjoint_solution()

◆ add_sensitivity_rhs()

◆ add_sensitivity_solution()

◆ add_variable() [1/2]

◆ add_variable() [2/2]

◆ add_variables() [1/2]

◆ add_variables() [2/2]

◆ add_vector()

◆ add_weighted_sensitivity_adjoint_solution()

◆ add_weighted_sensitivity_solution()

◆ adjoint_qoi_parameter_sensitivity()

◆ adjoint_solve()

◆ assemble()

◆ assemble_qoi()

◆ assemble_qoi_derivative()

◆ assemble_residual_derivatives()

◆ attach_assemble_function()

◆ attach_assemble_object()

◆ attach_constraint_function()

◆ attach_constraint_object()

◆ attach_init_function()

◆ attach_init_object()

◆ attach_QOI_derivative()

◆ attach_QOI_derivative_object()

◆ attach_QOI_function()

◆ attach_QOI_object()

◆ boundary_project_solution() [1/2]

◆ boundary_project_solution() [2/2]

◆ boundary_project_vector() [1/2]

◆ boundary_project_vector() [2/2]

◆ calculate_norm() [1/2]

◆ calculate_norm() [2/2]

◆ clear()

◆ comm()

◆ compare()

◆ current_solution()

◆ deactivate()

◆ disable_cache()

◆ disable_print_counter_info()

◆ discrete_var_norm()

◆ enable_print_counter_info()

◆ forward_qoi_parameter_sensitivity()

◆ get_adjoint_rhs() [1/2]

◆ get_adjoint_rhs() [2/2]

◆ get_adjoint_solution() [1/2]

◆ get_adjoint_solution() [2/2]

◆ get_all_variable_numbers()

◆ get_dof_map() [1/2]

◆ get_dof_map() [2/2]

◆ get_equation_systems() [1/2]

◆ get_equation_systems() [2/2]

◆ get_info() [1/2]

◆ get_info() [2/2]