#include <newmark_solver.h>

Inheritance diagram for libMesh::NewmarkSolver:

[legend]

Public Types
typedef UnsteadySolver	Parent

typedef DifferentiableSystem	sys_type

Public Member Functions
	NewmarkSolver (sys_type &s)

virtual	~NewmarkSolver ()

virtual void	advance_timestep () override

virtual void	adjoint_advance_timestep () override

virtual void	compute_initial_accel ()

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

void	set_initial_accel_avail (bool initial_accel_set)

virtual Real	error_order () const override

virtual void	solve () override

virtual bool	element_residual (bool request_jacobian, DiffContext &) override

virtual bool	side_residual (bool request_jacobian, DiffContext &) override

virtual bool	nonlocal_residual (bool request_jacobian, DiffContext &) override

void	set_beta (Real beta)

void	set_gamma (Real gamma)

virtual unsigned int	time_order () const override

virtual void	init () override

virtual void	init_data () override

virtual void	reinit () override

virtual void	retrieve_timestep () override

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

Number	old_solution_rate (const dof_id_type global_dof_number) const

Number	old_solution_accel (const dof_id_type global_dof_number) const

Number	old_nonlinear_solution (const dof_id_type global_dof_number) const

virtual Real	du (const SystemNorm &norm) const override

virtual bool	is_steady () const override

virtual void	before_timestep ()

const sys_type &	system () const

sys_type &	system ()

virtual std::unique_ptr< DiffSolver > &	diff_solver ()

virtual std::unique_ptr< LinearSolver< Number > > &	linear_solver ()

void	set_solution_history (const SolutionHistory &_solution_history)

bool	is_adjoint () const

void	set_is_adjoint (bool _is_adjoint_value)

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
std::unique_ptr< NumericVector< Number > >	old_local_nonlinear_solution

bool	quiet

unsigned int	reduce_deltat_on_diffsolver_failure

Protected Types
typedef bool(DifferentiablePhysics::*	ResFuncType) (bool, DiffContext &)

typedef void(DiffContext::*	ReinitFuncType) (Real)

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

Protected Member Functions
virtual bool	_general_residual (bool request_jacobian, DiffContext &, ResFuncType mass, ResFuncType damping, ResFuncType time_deriv, ResFuncType constraint, ReinitFuncType reinit)

void	increment_constructor_count (const std::string &name)

void	increment_destructor_count (const std::string &name)

Protected Attributes
Real	_beta

Real	_gamma

bool	_is_accel_solve

bool	_initial_accel_set

std::unique_ptr< NumericVector< Number > >	_old_local_solution_rate

std::unique_ptr< NumericVector< Number > >	_old_local_solution_accel

bool	first_solve

bool	first_adjoint_step

std::unique_ptr< DiffSolver >	_diff_solver

std::unique_ptr< LinearSolver< Number > >	_linear_solver

sys_type &	_system

std::unique_ptr< SolutionHistory >	solution_history

Static Protected Attributes
static Counts	_counts

static Threads::atomic< unsigned int >	_n_objects

static Threads::spin_mutex	_mutex

static bool	_enable_print_counter = true

Detailed Description

This class defines a Newmark time integrator for second order (in time) DifferentiableSystems. There are two parameters $\gamma$ and $\beta$ (defaulting to 0.5 and 0.25, respectively).

Note: Projectors are included for the initial velocity and acceleration; the initial displacement can be set by calling System::project_solution().

This class is part of the new DifferentiableSystem framework, which is still experimental. Users of this framework should beware of bugs and future API changes.

Author: Paul T. Bauman

Date: 2015

Definition at line 46 of file newmark_solver.h.

Member Typedef Documentation

◆ Counts

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

protectedinherited

Data structure to log the information. The log is identified by the class name.

Definition at line 117 of file reference_counter.h.

◆ Parent

typedef UnsteadySolver libMesh::NewmarkSolver::Parent

The parent class

Definition at line 52 of file newmark_solver.h.

◆ ReinitFuncType

typedef void(DiffContext::* libMesh::TimeSolver::ReinitFuncType) (Real)

protectedinherited

Definition at line 273 of file time_solver.h.

◆ ResFuncType

typedef bool(DifferentiablePhysics::* libMesh::TimeSolver::ResFuncType) (bool, DiffContext &)

protectedinherited

Definitions of argument types for use in refactoring subclasses.

Definition at line 271 of file time_solver.h.

◆ sys_type

typedef DifferentiableSystem libMesh::TimeSolver::sys_type

inherited

The type of system

Definition at line 65 of file time_solver.h.

Constructor & Destructor Documentation

◆ NewmarkSolver()

libMesh::NewmarkSolver::NewmarkSolver ( sys_type & s )

explicit

Constructor. Requires a reference to the system to be solved.

Definition at line 25 of file newmark_solver.C.

   : SecondOrderUnsteadySolver(s),
     _beta(0.25),
     _gamma(0.5),
     _is_accel_solve(false),
     _initial_accel_set(false)
 {}

◆ ~NewmarkSolver()

libMesh::NewmarkSolver::~NewmarkSolver ( )

virtual

Destructor.

Definition at line 33 of file newmark_solver.C.

34 {}

Member Function Documentation

◆ _general_residual()

bool libMesh::NewmarkSolver::_general_residual	(	bool	request_jacobian,
		DiffContext &	context,
		ResFuncType	mass,
		ResFuncType	damping,
		ResFuncType	time_deriv,
		ResFuncType	constraint,
		ReinitFuncType	reinit
	)

protectedvirtual

This method is the underlying implementation of the public residual methods.

Definition at line 205 of file newmark_solver.C.

Referenced by element_residual(), nonlocal_residual(), and side_residual().

 {
   unsigned int n_dofs = context.get_elem_solution().size();
 
   // We might need to save the old jacobian in case one of our physics
   // terms later is unable to update it analytically.
   DenseMatrix<Number> old_elem_jacobian(n_dofs, n_dofs);
 
   // Local velocity at old time step
   DenseVector<Number> old_elem_solution_rate(n_dofs);
   for (unsigned int i=0; i != n_dofs; ++i)
     old_elem_solution_rate(i) =
       old_solution_rate(context.get_dof_indices()[i]);
 
   // The user is computing the initial acceleration
   // So upstream we've swapped _system.solution and _old_local_solution_accel
   // So we need to give the context the correct entries since we're solving for
   // acceleration here.
   if (_is_accel_solve)
     {
       // System._solution is actually the acceleration right now so we need
       // to reset the elem_solution to the right thing, which in this case
       // is the initial guess for displacement, which got swapped into
       // _old_solution_accel vector
       DenseVector<Number> old_elem_solution(n_dofs);
       for (unsigned int i=0; i != n_dofs; ++i)
         old_elem_solution(i) =
           old_solution_accel(context.get_dof_indices()[i]);
 
       context.elem_solution_derivative = 0.0;
       context.elem_solution_rate_derivative = 0.0;
       context.elem_solution_accel_derivative = 1.0;
 
       // Acceleration is currently the unknown so it's already sitting
       // in elem_solution() thanks to FEMContext::pre_fe_reinit
       context.get_elem_solution_accel() = context.get_elem_solution();
 
       // Now reset elem_solution() to what the user is expecting
       context.get_elem_solution() = old_elem_solution;
 
       context.get_elem_solution_rate() = old_elem_solution_rate;
 
       // The user's Jacobians will be targeting derivatives w.r.t. u_{n+1}.
       // Although the vast majority of cases will have the correct analytic
       // Jacobians in this iteration, since we reset elem_solution_derivative*,
       // if there are coupled/overlapping problems, there could be
       // mismatches in the Jacobian. So we force finite differencing for
       // the first iteration.
       request_jacobian = false;
     }
   // Otherwise, the unknowns are the displacements and everything is straight
   // forward and is what you think it is
   else
     {
       if (request_jacobian)
         old_elem_jacobian.swap(context.get_elem_jacobian());
 
       // Local displacement at old timestep
       DenseVector<Number> old_elem_solution(n_dofs);
       for (unsigned int i=0; i != n_dofs; ++i)
         old_elem_solution(i) =
           old_nonlinear_solution(context.get_dof_indices()[i]);
 
       // Local acceleration at old time step
       DenseVector<Number> old_elem_solution_accel(n_dofs);
       for (unsigned int i=0; i != n_dofs; ++i)
         old_elem_solution_accel(i) =
           old_solution_accel(context.get_dof_indices()[i]);
 
       // Convenience
       libMesh::Real dt = _system.deltat;
 
       context.elem_solution_derivative = 1.0;
 
       // Local velocity at current time step
       // v_{n+1} = gamma/(beta*Delta t)*(x_{n+1}-x_n)
       //         + (1-(gamma/beta))*v_n
       //         + (1-gamma/(2*beta))*(Delta t)*a_n
       context.elem_solution_rate_derivative = (_gamma/(_beta*dt));
 
       context.get_elem_solution_rate()  = context.get_elem_solution();
       context.get_elem_solution_rate() -= old_elem_solution;
       context.get_elem_solution_rate() *= context.elem_solution_rate_derivative;
       context.get_elem_solution_rate().add( (1.0-_gamma/_beta), old_elem_solution_rate);
       context.get_elem_solution_rate().add( (1.0-_gamma/(2.0*_beta))*dt, old_elem_solution_accel);
 
 
 
       // Local acceleration at current time step
       // a_{n+1} = (1/(beta*(Delta t)^2))*(x_{n+1}-x_n)
       //         - 1/(beta*Delta t)*v_n
       //         - (1/(2*beta)-1)*a_n
       context.elem_solution_accel_derivative = 1.0/(_beta*dt*dt);
 
       context.get_elem_solution_accel()  = context.get_elem_solution();
       context.get_elem_solution_accel() -= old_elem_solution;
       context.get_elem_solution_accel() *= context.elem_solution_accel_derivative;
       context.get_elem_solution_accel().add(-1.0/(_beta*dt), old_elem_solution_rate);
       context.get_elem_solution_accel().add(-(1.0/(2.0*_beta)-1.0), old_elem_solution_accel);
 
       // Move the mesh into place first if necessary, set t = t_{n+1}
       (context.*reinit_func)(1.);
     }
 
   // If a fixed solution is requested, we'll use x_{n+1}
   if (_system.use_fixed_solution)
     context.get_elem_fixed_solution() = context.get_elem_solution();
 
   // Get the time derivative at t_{n+1}, F(u_{n+1})
   bool jacobian_computed = (_system.get_physics()->*time_deriv)(request_jacobian, context);
 
   // Damping at t_{n+1}, C(u_{n+1})
   jacobian_computed = (_system.get_physics()->*damping)(jacobian_computed, context) &&
     jacobian_computed;
 
   // Mass at t_{n+1}, M(u_{n+1})
   jacobian_computed = (_system.get_physics()->*mass)(jacobian_computed, context) &&
     jacobian_computed;
 
   // Add the constraint term
   jacobian_computed = (_system.get_physics()->*constraint)(jacobian_computed, context) &&
     jacobian_computed;
 
   // Add back (or restore) the old jacobian
   if (request_jacobian)
     {
       if (jacobian_computed)
         context.get_elem_jacobian() += old_elem_jacobian;
       else
         context.get_elem_jacobian().swap(old_elem_jacobian);
     }
 
   return jacobian_computed;
 }

◆ adjoint_advance_timestep()

void libMesh::NewmarkSolver::adjoint_advance_timestep ( )

overridevirtual

This method advances the adjoint solution to the previous timestep, after an adjoint_solve() has been performed. This will be done before every UnsteadySolver::adjoint_solve().

Reimplemented from libMesh::UnsteadySolver.

Definition at line 101 of file newmark_solver.C.

 {
   libmesh_not_implemented();
 }

◆ advance_timestep()

void libMesh::NewmarkSolver::advance_timestep ( )

overridevirtual

This method advances the solution to the next timestep, after a solve() has been performed. Often this will be done after every UnsteadySolver::solve(), but adaptive mesh refinement and/or adaptive time step selection may require some solve() steps to be repeated.

Reimplemented from libMesh::UnsteadySolver.

Definition at line 43 of file newmark_solver.C.

References _beta, _gamma, libMesh::SecondOrderUnsteadySolver::_old_local_solution_accel, libMesh::SecondOrderUnsteadySolver::_old_local_solution_rate, libMesh::TimeSolver::_system, libMesh::NumericVector< T >::add(), libMesh::UnsteadySolver::advance_timestep(), libMesh::NumericVector< T >::clone(), libMesh::DifferentiableSystem::deltat, libMesh::UnsteadySolver::first_solve, libMesh::System::get_dof_map(), libMesh::DofMap::get_send_list(), libMesh::System::get_vector(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), and libMesh::System::solution.

 {
   // We need to update velocity and acceleration before
   // we update the nonlinear solution (displacement) and
   // delta_t
 
   NumericVector<Number> & old_solution_rate =
     _system.get_vector("_old_solution_rate");
 
   NumericVector<Number> & old_solution_accel =
     _system.get_vector("_old_solution_accel");
 
   if (!first_solve)
     {
       NumericVector<Number> & old_nonlinear_soln =
         _system.get_vector("_old_nonlinear_solution");
 
       NumericVector<Number> & nonlinear_solution =
         *(_system.solution);
 
       // We need to cache the new solution_rate before updating the old_solution_rate
       // so we can update acceleration with the proper old_solution_rate
       // v_{n+1} = gamma/(beta*Delta t)*(x_{n+1}-x_n)
       //         - ((gamma/beta)-1)*v_n
       //         - (gamma/(2*beta)-1)*(Delta t)*a_n
       std::unique_ptr<NumericVector<Number>> new_solution_rate = nonlinear_solution.clone();
       (*new_solution_rate) -= old_nonlinear_soln;
       (*new_solution_rate) *= (_gamma/(_beta*_system.deltat));
       new_solution_rate->add( (1.0-_gamma/_beta), old_solution_rate );
       new_solution_rate->add( (1.0-_gamma/(2.0*_beta))*_system.deltat, old_solution_accel );
 
       // a_{n+1} = (1/(beta*(Delta t)^2))*(x_{n+1}-x_n)
       //         - 1/(beta*Delta t)*v_n
       //         - (1-1/(2*beta))*a_n
       std::unique_ptr<NumericVector<Number>> new_solution_accel = old_solution_accel.clone();
       (*new_solution_accel) *=  -(1.0/(2.0*_beta)-1.0);
       new_solution_accel->add( -1.0/(_beta*_system.deltat), old_solution_rate );
       new_solution_accel->add( 1.0/(_beta*_system.deltat*_system.deltat), nonlinear_solution );
       new_solution_accel->add( -1.0/(_beta*_system.deltat*_system.deltat), old_nonlinear_soln );
 
       // Now update old_solution_rate
       old_solution_rate = (*new_solution_rate);
       old_solution_accel = (*new_solution_accel);
     }
 
   // Localize updated vectors
   old_solution_rate.localize
     (*_old_local_solution_rate,
      _system.get_dof_map().get_send_list());
 
   old_solution_accel.localize
     (*_old_local_solution_accel,
      _system.get_dof_map().get_send_list());
 
   // Now we can finish advancing the timestep
   UnsteadySolver::advance_timestep();
 }

◆ before_timestep()

virtual void libMesh::TimeSolver::before_timestep ( )

inlinevirtualinherited

This method is for subclasses or users to override to do arbitrary processing between timesteps

Definition at line 167 of file time_solver.h.

167 {}

◆ compute_initial_accel()

void libMesh::NewmarkSolver::compute_initial_accel ( )

virtual

This method uses the specified initial displacement and velocity to compute the initial acceleration $a_0$ .

Definition at line 106 of file newmark_solver.C.

References libMesh::TimeSolver::_diff_solver, _is_accel_solve, libMesh::TimeSolver::_system, libMesh::System::get_vector(), set_initial_accel_avail(), libMesh::System::solution, and libMesh::System::update().

 {
   // We need to compute the initial acceleration based off of
   // the initial position and velocity and, thus, acceleration
   // is the unknown in diff_solver and not the displacement. So,
   // We swap solution and acceleration. NewmarkSolver::_general_residual
   // will check _is_accel_solve and provide the correct
   // values to the FEMContext assuming this swap was made.
   this->_is_accel_solve = true;
 
   //solution->accel, accel->solution
   _system.solution->swap(_system.get_vector("_old_solution_accel"));
   _system.update();
 
   this->_diff_solver->solve();
 
   // solution->solution, accel->accel
   _system.solution->swap(_system.get_vector("_old_solution_accel"));
   _system.update();
 
   // We're done, so no longer doing an acceleration solve
   this->_is_accel_solve = false;
 
   this->set_initial_accel_avail(true);
 }

◆ diff_solver()

virtual std::unique_ptr<DiffSolver>& libMesh::TimeSolver::diff_solver ( )

inlinevirtualinherited

An implicit linear or nonlinear solver to use at each timestep.

Reimplemented in libMesh::AdaptiveTimeSolver.

Definition at line 182 of file time_solver.h.

References libMesh::TimeSolver::_diff_solver.

Referenced by libMesh::TimeSolver::init(), libMesh::TimeSolver::init_data(), libMesh::TimeSolver::reinit(), and libMesh::TimeSolver::solve().

182 { return _diff_solver; }

libMesh::TimeSolver::_diff_solver

std::unique_ptr< DiffSolver > _diff_solver

Definition: time_solver.h:248

◆ 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;
 }

◆ du()

Real libMesh::UnsteadySolver::du ( const SystemNorm & norm ) const

overridevirtualinherited

Computes the size of ||u^{n+1} - u^{n}|| in some norm.

Note: While you can always call this function, its result may or may not be very meaningful. For example, if you call this function right after calling advance_timestep() then you'll get a result of zero since old_nonlinear_solution is set equal to nonlinear_solution in this function.

Implements libMesh::TimeSolver.

Definition at line 227 of file unsteady_solver.C.

References libMesh::TimeSolver::_system, libMesh::System::calculate_norm(), libMesh::System::get_vector(), and libMesh::System::solution.

 {
 
   std::unique_ptr<NumericVector<Number>> solution_copy =
     _system.solution->clone();
 
   solution_copy->add(-1., _system.get_vector("_old_nonlinear_solution"));
 
   solution_copy->close();
 
   return _system.calculate_norm(*solution_copy, norm);
 }

◆ element_residual()

bool libMesh::NewmarkSolver::element_residual	(	bool	request_jacobian,
		DiffContext &	context
	)

overridevirtual

This method uses the DifferentiablePhysics' element_time_derivative() and element_constraint() to build a full residual on an element. What combination it uses will depend on theta.

Implements libMesh::TimeSolver.

Definition at line 163 of file newmark_solver.C.

References libMesh::DifferentiablePhysics::_eulerian_time_deriv(), _general_residual(), libMesh::DifferentiablePhysics::damping_residual(), libMesh::DiffContext::elem_reinit(), libMesh::DifferentiablePhysics::element_constraint(), and libMesh::DifferentiablePhysics::mass_residual().

 {
   return this->_general_residual(request_jacobian,
                                  context,
                                  &DifferentiablePhysics::mass_residual,
                                  &DifferentiablePhysics::damping_residual,
                                  &DifferentiablePhysics::_eulerian_time_deriv,
                                  &DifferentiablePhysics::element_constraint,
                                  &DiffContext::elem_reinit);
 }

◆ 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;
 }

◆ error_order()

Real libMesh::NewmarkSolver::error_order ( ) const

overridevirtual

Error convergence order: 2 for $\gamma=0.5$ , 1 otherwise

Implements libMesh::UnsteadySolver.

Definition at line 36 of file newmark_solver.C.

References _gamma.

 {
   if (_gamma == 0.5)
     return 2.;
   return 1.;
 }

◆ get_info()

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

staticinherited

Gets a string containing the reference information.

Definition at line 47 of file reference_counter.C.

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

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

 {
 #if defined(LIBMESH_ENABLE_REFERENCE_COUNTING) && defined(DEBUG)
 
   std::ostringstream oss;
 
   oss << '\n'
       << " ---------------------------------------------------------------------------- \n"
       << "| Reference count information                                                |\n"
       << " ---------------------------------------------------------------------------- \n";
 
   for (const auto & 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
 }

◆ 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::SecondOrderUnsteadySolver::init ( )

overridevirtualinherited

The initialization function. This method is used to initialize internal data structures before a simulation begins.

Reimplemented from libMesh::UnsteadySolver.

Definition at line 34 of file second_order_unsteady_solver.C.

References libMesh::TimeSolver::_system, libMesh::System::add_vector(), and libMesh::UnsteadySolver::init().

 {
   UnsteadySolver::init();
 
   _system.add_vector("_old_solution_rate");
   _system.add_vector("_old_solution_accel");
 }

◆ init_data()

void libMesh::SecondOrderUnsteadySolver::init_data ( )

overridevirtualinherited

The data initialization function. This method is used to initialize internal data structures after the underlying System has been initialized

Reimplemented from libMesh::UnsteadySolver.

Definition at line 42 of file second_order_unsteady_solver.C.

References libMesh::SecondOrderUnsteadySolver::_old_local_solution_accel, libMesh::SecondOrderUnsteadySolver::_old_local_solution_rate, libMesh::TimeSolver::_system, libMesh::System::get_dof_map(), libMesh::DofMap::get_send_list(), libMesh::GHOSTED, libMesh::UnsteadySolver::init_data(), libMesh::System::n_dofs(), libMesh::System::n_local_dofs(), and libMesh::SERIAL.

 {
   UnsteadySolver::init_data();
 
 #ifdef LIBMESH_ENABLE_GHOSTED
   _old_local_solution_rate->init (_system.n_dofs(), _system.n_local_dofs(),
                                   _system.get_dof_map().get_send_list(), false,
                                   GHOSTED);
 
   _old_local_solution_accel->init (_system.n_dofs(), _system.n_local_dofs(),
                                    _system.get_dof_map().get_send_list(), false,
                                    GHOSTED);
 #else
   _old_local_solution_rate->init (_system.n_dofs(), false, SERIAL);
   _old_local_solution_accel->init (_system.n_dofs(), false, SERIAL);
 #endif
 }

◆ is_adjoint()

bool libMesh::TimeSolver::is_adjoint ( ) const

inlineinherited

Accessor for querying whether we need to do a primal or adjoint solve

Definition at line 233 of file time_solver.h.

References libMesh::TimeSolver::_is_adjoint.

Referenced by libMesh::FEMSystem::build_context().

234 { return _is_adjoint; }

libMesh::TimeSolver::_is_adjoint

bool _is_adjoint

Definition: time_solver.h:281

◆ is_steady()

virtual bool libMesh::UnsteadySolver::is_steady ( ) const

inlineoverridevirtualinherited

This is not a steady-state solver.

Implements libMesh::TimeSolver.

Definition at line 154 of file unsteady_solver.h.

154 { return false; }

◆ linear_solver()

virtual std::unique_ptr<LinearSolver<Number> >& libMesh::TimeSolver::linear_solver ( )

inlinevirtualinherited

An implicit linear solver to use for adjoint and sensitivity problems.

Reimplemented in libMesh::AdaptiveTimeSolver.

Definition at line 187 of file time_solver.h.

References libMesh::TimeSolver::_linear_solver.

Referenced by libMesh::TimeSolver::init(), libMesh::TimeSolver::init_data(), and libMesh::TimeSolver::reinit().

187 { return _linear_solver; }

libMesh::TimeSolver::_linear_solver

std::unique_ptr< LinearSolver< Number > > _linear_solver

Definition: time_solver.h:253

◆ 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

◆ nonlocal_residual()

bool libMesh::NewmarkSolver::nonlocal_residual	(	bool	request_jacobian,
		DiffContext &	context
	)

overridevirtual

This method uses the DifferentiablePhysics' nonlocal_time_derivative() and nonlocal_constraint() to build a full residual for non-local terms. What combination it uses will depend on theta.

Implements libMesh::TimeSolver.

Definition at line 191 of file newmark_solver.C.

References _general_residual(), libMesh::DifferentiablePhysics::nonlocal_constraint(), libMesh::DifferentiablePhysics::nonlocal_damping_residual(), libMesh::DifferentiablePhysics::nonlocal_mass_residual(), libMesh::DiffContext::nonlocal_reinit(), and libMesh::DifferentiablePhysics::nonlocal_time_derivative().

 {
   return this->_general_residual(request_jacobian,
                                  context,
                                  &DifferentiablePhysics::nonlocal_mass_residual,
                                  &DifferentiablePhysics::nonlocal_damping_residual,
                                  &DifferentiablePhysics::nonlocal_time_derivative,
                                  &DifferentiablePhysics::nonlocal_constraint,
                                  &DiffContext::nonlocal_reinit);
 }

◆ old_nonlinear_solution()

Number libMesh::UnsteadySolver::old_nonlinear_solution ( const dof_id_type global_dof_number ) const

inherited

Returns: The old nonlinear solution for the specified global DOF.

Definition at line 216 of file unsteady_solver.C.

References libMesh::TimeSolver::_system, libMesh::System::get_dof_map(), libMesh::DofMap::n_dofs(), and libMesh::UnsteadySolver::old_local_nonlinear_solution.

Referenced by libMesh::EulerSolver::_general_residual(), libMesh::Euler2Solver::_general_residual(), and _general_residual().

 {
   libmesh_assert_less (global_dof_number, _system.get_dof_map().n_dofs());
   libmesh_assert_less (global_dof_number, old_local_nonlinear_solution->size());
 
   return (*old_local_nonlinear_solution)(global_dof_number);
 }

◆ old_solution_accel()

Number libMesh::SecondOrderUnsteadySolver::old_solution_accel ( const dof_id_type global_dof_number ) const

inherited

Returns: The solution acceleration at the previous time step, $\ddot{u}_n$ , for the specified global DOF.

Definition at line 116 of file second_order_unsteady_solver.C.

References libMesh::SecondOrderUnsteadySolver::_old_local_solution_accel, libMesh::TimeSolver::_system, libMesh::System::get_dof_map(), and libMesh::DofMap::n_dofs().

Referenced by _general_residual(), advance_timestep(), project_initial_accel(), and libMesh::SecondOrderUnsteadySolver::reinit().

 {
   libmesh_assert_less (global_dof_number, _system.get_dof_map().n_dofs());
   libmesh_assert_less (global_dof_number, _old_local_solution_accel->size());
 
   return (*_old_local_solution_accel)(global_dof_number);
 }

◆ old_solution_rate()

Number libMesh::SecondOrderUnsteadySolver::old_solution_rate ( const dof_id_type global_dof_number ) const

inherited

Returns: The solution rate at the previous time step, $\dot{u}_n$ , for the specified global DOF.

Definition at line 107 of file second_order_unsteady_solver.C.

References libMesh::SecondOrderUnsteadySolver::_old_local_solution_rate, libMesh::TimeSolver::_system, libMesh::System::get_dof_map(), and libMesh::DofMap::n_dofs().

Referenced by _general_residual(), advance_timestep(), libMesh::SecondOrderUnsteadySolver::project_initial_rate(), and libMesh::SecondOrderUnsteadySolver::reinit().

 {
   libmesh_assert_less (global_dof_number, _system.get_dof_map().n_dofs());
   libmesh_assert_less (global_dof_number, _old_local_solution_rate->size());
 
   return (*_old_local_solution_rate)(global_dof_number);
 }

◆ 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();
 }

◆ project_initial_accel()

void libMesh::NewmarkSolver::project_initial_accel	(	FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`
	)

Specify non-zero initial acceleration. Should be called before solve(). This is an alternative to compute_initial_acceleration() if the initial acceleration is actually known. 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.

Definition at line 132 of file newmark_solver.C.

References libMesh::TimeSolver::_system, libMesh::System::get_vector(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), libMesh::System::project_vector(), and set_initial_accel_avail().

 {
   NumericVector<Number> & old_solution_accel =
     _system.get_vector("_old_solution_accel");
 
   _system.project_vector( old_solution_accel, f, g );
 
   this->set_initial_accel_avail(true);
 }

◆ project_initial_rate()

void libMesh::SecondOrderUnsteadySolver::project_initial_rate	(	FunctionBase< Number > *	f,
		FunctionBase< Gradient > *	g = `nullptr`
	)

inherited

Specify non-zero initial velocity. Should be called before solve(). 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.

Definition at line 98 of file second_order_unsteady_solver.C.

References libMesh::TimeSolver::_system, libMesh::System::get_vector(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), and libMesh::System::project_vector().

 {
   NumericVector<Number> & old_solution_rate =
     _system.get_vector("_old_solution_rate");
 
   _system.project_vector( old_solution_rate, f, g );
 }

◆ reinit()

void libMesh::SecondOrderUnsteadySolver::reinit ( )

overridevirtualinherited

The reinitialization function. This method is used to resize internal data vectors after a mesh change.

Reimplemented from libMesh::UnsteadySolver.

Definition at line 60 of file second_order_unsteady_solver.C.

References libMesh::SecondOrderUnsteadySolver::_old_local_solution_accel, libMesh::SecondOrderUnsteadySolver::_old_local_solution_rate, libMesh::TimeSolver::_system, libMesh::System::get_dof_map(), libMesh::DofMap::get_send_list(), libMesh::System::get_vector(), libMesh::GHOSTED, libMesh::System::n_dofs(), libMesh::System::n_local_dofs(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), libMesh::UnsteadySolver::reinit(), and libMesh::SERIAL.

 {
   UnsteadySolver::reinit();
 
 #ifdef LIBMESH_ENABLE_GHOSTED
   _old_local_solution_rate->init (_system.n_dofs(), _system.n_local_dofs(),
                                   _system.get_dof_map().get_send_list(), false,
                                   GHOSTED);
 
   _old_local_solution_accel->init (_system.n_dofs(), _system.n_local_dofs(),
                                    _system.get_dof_map().get_send_list(), false,
                                    GHOSTED);
 #else
   _old_local_solution_rate->init (_system.n_dofs(), false, SERIAL);
   _old_local_solution_accel->init (_system.n_dofs(), false, SERIAL);
 #endif
 
   // localize the old solutions
   NumericVector<Number> & old_solution_rate =
     _system.get_vector("_old_solution_rate");
 
   NumericVector<Number> & old_solution_accel =
     _system.get_vector("_old_solution_accel");
 
   old_solution_rate.localize
     (*_old_local_solution_rate,
      _system.get_dof_map().get_send_list());
 
   old_solution_accel.localize
     (*_old_local_solution_accel,
      _system.get_dof_map().get_send_list());
 }

◆ retrieve_timestep()

void libMesh::SecondOrderUnsteadySolver::retrieve_timestep ( )

overridevirtualinherited

This method retrieves all the stored solutions at the current system.time

Reimplemented from libMesh::UnsteadySolver.

Definition at line 93 of file second_order_unsteady_solver.C.

 {
   libmesh_not_implemented();
 }

◆ set_beta()

void libMesh::NewmarkSolver::set_beta ( Real beta )

inline

Setter for $\beta$

Definition at line 149 of file newmark_solver.h.

References _beta.

150 { _beta = beta; }

libMesh::NewmarkSolver::_beta

Real _beta

Definition: newmark_solver.h:167

◆ set_gamma()

void libMesh::NewmarkSolver::set_gamma ( Real gamma )

inline

Setter for $\gamma$ .

Note: The method is second order only for $\gamma = 1/2$ .

Definition at line 157 of file newmark_solver.h.

References _gamma.

158 { _gamma = gamma; }

libMesh::NewmarkSolver::_gamma

Real _gamma

Definition: newmark_solver.h:173

◆ set_initial_accel_avail()

void libMesh::NewmarkSolver::set_initial_accel_avail ( bool initial_accel_set )

Allow the user to (re)set whether the initial acceleration is available. This is not needed if either compute_initial_accel() or project_initial_accel() are called. This is useful is the user is restarting a calculation and the acceleration is available from the restart.

Definition at line 143 of file newmark_solver.C.

References _initial_accel_set.

Referenced by compute_initial_accel(), and project_initial_accel().

 {
   _initial_accel_set = initial_accel_set;
 }

◆ set_is_adjoint()

void libMesh::TimeSolver::set_is_adjoint ( bool _is_adjoint_value )

inlineinherited

Accessor for setting whether we need to do a primal or adjoint solve

Definition at line 240 of file time_solver.h.

References libMesh::TimeSolver::_is_adjoint.

Referenced by libMesh::DifferentiableSystem::adjoint_solve(), libMesh::FEMSystem::postprocess(), and libMesh::DifferentiableSystem::solve().

241 { _is_adjoint = _is_adjoint_value; }

libMesh::TimeSolver::_is_adjoint

bool _is_adjoint

Definition: time_solver.h:281

◆ set_solution_history()

void libMesh::TimeSolver::set_solution_history ( const SolutionHistory & _solution_history )

inherited

A setter function users will employ if they need to do something other than save no solution history

Definition at line 97 of file time_solver.C.

References libMesh::SolutionHistory::clone(), and libMesh::TimeSolver::solution_history.

 {
   solution_history = _solution_history.clone();
 }

◆ side_residual()

bool libMesh::NewmarkSolver::side_residual	(	bool	request_jacobian,
		DiffContext &	context
	)

overridevirtual

This method uses the DifferentiablePhysics' side_time_derivative() and side_constraint() to build a full residual on an element's side. What combination it uses will depend on theta.

Implements libMesh::TimeSolver.

Definition at line 177 of file newmark_solver.C.

References _general_residual(), libMesh::DiffContext::elem_side_reinit(), libMesh::DifferentiablePhysics::side_constraint(), libMesh::DifferentiablePhysics::side_damping_residual(), libMesh::DifferentiablePhysics::side_mass_residual(), and libMesh::DifferentiablePhysics::side_time_derivative().

 {
   return this->_general_residual(request_jacobian,
                                  context,
                                  &DifferentiablePhysics::side_mass_residual,
                                  &DifferentiablePhysics::side_damping_residual,
                                  &DifferentiablePhysics::side_time_derivative,
                                  &DifferentiablePhysics::side_constraint,
                                  &DiffContext::elem_side_reinit);
 }

◆ solve()

void libMesh::NewmarkSolver::solve ( )

overridevirtual

This method solves for the solution at the next timestep. Usually we will only need to solve one (non)linear system per timestep, but more complex subclasses may override this.

Reimplemented from libMesh::UnsteadySolver.

Definition at line 148 of file newmark_solver.C.

References _initial_accel_set, and libMesh::UnsteadySolver::solve().

 {
   // First, check that the initial accel was set one way or another
   if (!_initial_accel_set)
     {
       std::string error = "ERROR: Must first set initial acceleration using one of:\n";
       error += "NewmarkSolver::compute_initial_accel()\n";
       error += "NewmarkSolver::project_initial_accel()\n";
       libmesh_error_msg(error);
     }
 
   // That satisfied, now we can solve
   UnsteadySolver::solve();
 }

◆ system() [1/2]

const sys_type& libMesh::TimeSolver::system ( ) const

inlineinherited

Returns: A constant reference to the system we are solving.

Definition at line 172 of file time_solver.h.

References libMesh::TimeSolver::_system.

Referenced by libMesh::TimeSolver::reinit(), and libMesh::TimeSolver::solve().

172 { return _system; }

libMesh::TimeSolver::_system

sys_type & _system

Definition: time_solver.h:258

◆ system() [2/2]

sys_type& libMesh::TimeSolver::system ( )

inlineinherited

Returns: A writable reference to the system we are solving.

Definition at line 177 of file time_solver.h.

References libMesh::TimeSolver::_system.

177 { return _system; }

libMesh::TimeSolver::_system

sys_type & _system

Definition: time_solver.h:258

◆ time_order()

virtual unsigned int libMesh::SecondOrderUnsteadySolver::time_order ( ) const

inlineoverridevirtualinherited

Returns: The maximum order of time derivatives for which the UnsteadySolver subclass is capable of handling.

For example, EulerSolver will have time_order() = 1 and NewmarkSolver will have time_order() = 2.

Implements libMesh::UnsteadySolver.

Definition at line 53 of file second_order_unsteady_solver.h.

54 { return 2; }

Member Data Documentation

◆ _beta

Real libMesh::NewmarkSolver::_beta

protected

The value for the $\beta$ to employ. Method is unconditionally stable for $\beta \ge \frac{1}{4} \left( \gamma + \frac{1}{2}\right)^2$

Definition at line 167 of file newmark_solver.h.

Referenced by _general_residual(), advance_timestep(), and set_beta().

◆ _counts

ReferenceCounter::Counts libMesh::ReferenceCounter::_counts

staticprotectedinherited

Actually holds the data.

Definition at line 122 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::get_info(), libMesh::ReferenceCounter::increment_constructor_count(), and libMesh::ReferenceCounter::increment_destructor_count().

◆ _diff_solver

std::unique_ptr<DiffSolver> libMesh::TimeSolver::_diff_solver

protectedinherited

An implicit linear or nonlinear solver to use at each timestep.

Definition at line 248 of file time_solver.h.

Referenced by compute_initial_accel(), libMesh::TimeSolver::diff_solver(), and libMesh::UnsteadySolver::solve().

◆ _enable_print_counter

bool libMesh::ReferenceCounter::_enable_print_counter = true

staticprotectedinherited

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

Definition at line 141 of file reference_counter.h.

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

◆ _gamma

Real libMesh::NewmarkSolver::_gamma

protected

The value for $\gamma$ to employ. Newmark is 2nd order iff $\gamma=0.5$ .

Definition at line 173 of file newmark_solver.h.

Referenced by _general_residual(), advance_timestep(), error_order(), and set_gamma().

◆ _initial_accel_set

bool libMesh::NewmarkSolver::_initial_accel_set

protected

This method requires an initial acceleration. So, we force the user to call either compute_initial_accel or project_initial_accel to set the initial acceleration.

Definition at line 187 of file newmark_solver.h.

Referenced by set_initial_accel_avail(), and solve().

◆ _is_accel_solve

bool libMesh::NewmarkSolver::_is_accel_solve

protected

Need to be able to indicate to _general_residual if we are doing an acceleration solve or not.

Definition at line 179 of file newmark_solver.h.

Referenced by _general_residual(), and compute_initial_accel().

◆ _linear_solver

std::unique_ptr<LinearSolver<Number> > libMesh::TimeSolver::_linear_solver

protectedinherited

An implicit linear solver to use for adjoint problems.

Definition at line 253 of file time_solver.h.

Referenced by libMesh::TimeSolver::linear_solver().

◆ _mutex

Threads::spin_mutex libMesh::ReferenceCounter::_mutex

staticprotectedinherited

Mutual exclusion object to enable thread-safe reference counting.

Definition at line 135 of file reference_counter.h.

◆ _n_objects

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

staticprotectedinherited

The number of objects. Print the reference count information when the number returns to 0.

Definition at line 130 of file reference_counter.h.

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

◆ _old_local_solution_accel

std::unique_ptr<NumericVector<Number> > libMesh::SecondOrderUnsteadySolver::_old_local_solution_accel

protectedinherited

Serial vector of previous time step acceleration $\ddot{u}_n$

Definition at line 112 of file second_order_unsteady_solver.h.

Referenced by advance_timestep(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), and libMesh::SecondOrderUnsteadySolver::reinit().

◆ _old_local_solution_rate

std::unique_ptr<NumericVector<Number> > libMesh::SecondOrderUnsteadySolver::_old_local_solution_rate

protectedinherited

Serial vector of previous time step velocity $\dot{u}_n$

Definition at line 107 of file second_order_unsteady_solver.h.

Referenced by advance_timestep(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), and libMesh::SecondOrderUnsteadySolver::reinit().

◆ _system

sys_type& libMesh::TimeSolver::_system

protectedinherited

A reference to the system we are solving.

Definition at line 258 of file time_solver.h.

Referenced by libMesh::EulerSolver::_general_residual(), libMesh::Euler2Solver::_general_residual(), libMesh::SteadySolver::_general_residual(), _general_residual(), libMesh::UnsteadySolver::adjoint_advance_timestep(), advance_timestep(), libMesh::AdaptiveTimeSolver::advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), compute_initial_accel(), libMesh::FirstOrderUnsteadySolver::compute_second_order_eqns(), libMesh::UnsteadySolver::du(), libMesh::EulerSolver::element_residual(), libMesh::Euler2Solver::element_residual(), libMesh::EigenTimeSolver::element_residual(), libMesh::SecondOrderUnsteadySolver::init(), libMesh::UnsteadySolver::init(), libMesh::TimeSolver::init(), libMesh::EigenTimeSolver::init(), libMesh::SecondOrderUnsteadySolver::init_data(), libMesh::UnsteadySolver::init_data(), libMesh::TimeSolver::init_data(), libMesh::EulerSolver::nonlocal_residual(), libMesh::Euler2Solver::nonlocal_residual(), libMesh::EigenTimeSolver::nonlocal_residual(), libMesh::UnsteadySolver::old_nonlinear_solution(), libMesh::SecondOrderUnsteadySolver::old_solution_accel(), libMesh::SecondOrderUnsteadySolver::old_solution_rate(), project_initial_accel(), libMesh::SecondOrderUnsteadySolver::project_initial_rate(), libMesh::SecondOrderUnsteadySolver::reinit(), libMesh::UnsteadySolver::reinit(), libMesh::TimeSolver::reinit(), libMesh::UnsteadySolver::retrieve_timestep(), libMesh::EigenTimeSolver::side_residual(), libMesh::TwostepTimeSolver::solve(), libMesh::UnsteadySolver::solve(), libMesh::EigenTimeSolver::solve(), and libMesh::TimeSolver::system().

◆ first_adjoint_step

bool libMesh::UnsteadySolver::first_adjoint_step

protectedinherited

A bool that will be true the first time adjoint_advance_timestep() is called, (when the primal solution is to be used to set adjoint boundary conditions) and false thereafter

Definition at line 168 of file unsteady_solver.h.

Referenced by libMesh::UnsteadySolver::adjoint_advance_timestep().

◆ first_solve

bool libMesh::UnsteadySolver::first_solve

protectedinherited

A bool that will be true the first time solve() is called, and false thereafter

Definition at line 162 of file unsteady_solver.h.

Referenced by advance_timestep(), libMesh::AdaptiveTimeSolver::advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), libMesh::TwostepTimeSolver::solve(), and libMesh::UnsteadySolver::solve().

◆ old_local_nonlinear_solution

std::unique_ptr<NumericVector<Number> > libMesh::UnsteadySolver::old_local_nonlinear_solution

inherited

Serial vector of _system.get_vector("_old_nonlinear_solution")

Definition at line 138 of file unsteady_solver.h.

Referenced by libMesh::AdaptiveTimeSolver::AdaptiveTimeSolver(), libMesh::UnsteadySolver::adjoint_advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), libMesh::AdaptiveTimeSolver::init(), libMesh::UnsteadySolver::init_data(), libMesh::UnsteadySolver::old_nonlinear_solution(), libMesh::UnsteadySolver::reinit(), libMesh::UnsteadySolver::retrieve_timestep(), and libMesh::AdaptiveTimeSolver::~AdaptiveTimeSolver().

◆ quiet

bool libMesh::TimeSolver::quiet

inherited

Print extra debugging information if quiet == false.

Definition at line 192 of file time_solver.h.

Referenced by libMesh::TwostepTimeSolver::solve(), libMesh::UnsteadySolver::solve(), and libMesh::EigenTimeSolver::solve().

◆ reduce_deltat_on_diffsolver_failure

unsigned int libMesh::TimeSolver::reduce_deltat_on_diffsolver_failure

inherited

This value (which defaults to zero) is the number of times the TimeSolver is allowed to halve deltat and let the DiffSolver repeat the latest failed solve with a reduced timestep.

Note: This has no effect for SteadySolvers.; You must set at least one of the DiffSolver flags "continue_after_max_iterations" or "continue_after_backtrack_failure" to allow the TimeSolver to retry the solve.

Definition at line 221 of file time_solver.h.

Referenced by libMesh::TwostepTimeSolver::solve(), and libMesh::UnsteadySolver::solve().

◆ solution_history

std::unique_ptr<SolutionHistory> libMesh::TimeSolver::solution_history

protectedinherited

A std::unique_ptr to a SolutionHistory object. Default is NoSolutionHistory, which the user can override by declaring a different kind of SolutionHistory in the application

Definition at line 265 of file time_solver.h.

Referenced by libMesh::UnsteadySolver::adjoint_advance_timestep(), libMesh::UnsteadySolver::advance_timestep(), libMesh::UnsteadySolver::retrieve_timestep(), and libMesh::TimeSolver::set_solution_history().

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

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Member Typedef Documentation

◆ Counts

◆ Parent

◆ ReinitFuncType

◆ ResFuncType

◆ sys_type

Constructor & Destructor Documentation

◆ NewmarkSolver()

◆ ~NewmarkSolver()

Member Function Documentation

◆ _general_residual()

◆ adjoint_advance_timestep()

◆ advance_timestep()

◆ before_timestep()

◆ compute_initial_accel()

◆ diff_solver()

◆ disable_print_counter_info()

◆ du()

◆ element_residual()

◆ enable_print_counter_info()

◆ error_order()

◆ get_info()

◆ increment_constructor_count()

◆ increment_destructor_count()

◆ init()

◆ init_data()

◆ is_adjoint()

◆ is_steady()

◆ linear_solver()

◆ n_objects()

◆ nonlocal_residual()

◆ old_nonlinear_solution()

◆ old_solution_accel()

◆ old_solution_rate()

◆ print_info()

◆ project_initial_accel()

◆ project_initial_rate()

◆ reinit()

◆ retrieve_timestep()

◆ set_beta()

◆ set_gamma()

◆ set_initial_accel_avail()

◆ set_is_adjoint()

◆ set_solution_history()

◆ side_residual()

◆ solve()

◆ system() [1/2]

◆ system() [2/2]

◆ time_order()

Member Data Documentation

◆ _beta

◆ _counts

◆ _diff_solver

◆ _enable_print_counter

◆ _gamma

◆ _initial_accel_set

◆ _is_accel_solve

◆ _linear_solver

◆ _mutex

◆ _n_objects

◆ _old_local_solution_accel

◆ _old_local_solution_rate

◆ _system

◆ first_adjoint_step

◆ first_solve

◆ old_local_nonlinear_solution

◆ quiet

◆ reduce_deltat_on_diffsolver_failure

◆ solution_history