GooseFEM::Iterate::StopList Class Reference

Class to perform a residual check based on the last "n" iterations. More...

#include <GooseFEM/Iterate.h>

Public Member Functions
	StopList (size_t n=1)
	Constructor.
void	reset ()
	Reset all residuals to infinity.
void	reset (size_t n)
	Reset all residuals to infinity, and change the number of residuals to check.
void	roll_insert (double res)
	Roll the list with the residuals, and add a new residual to the end.
bool	descending () const
	Check of the sequence of n residuals is in descending order.
bool	all_less (double tol) const
	Check of the sequence of n residuals are all below a tolerance.
const std::vector< double > &	data () const
	Get the historic residuals.
const std::vector< double > &	get () const
	Get the historic residuals.

Detailed Description

Class to perform a residual check based on the last "n" iterations.

A typical usage is in dynamic simulations where equilibrium is checked based on a force residual. Fluctuations could however be responsible for this criterion to be triggered too early. By checking several time-steps such case can be avoided.

Definition at line 27 of file Iterate.h.

Constructor & Destructor Documentation

StopList()

GooseFEM::Iterate::StopList::StopList ( size_t n = 1 )

inline

Constructor.

Parameters

n	Number of consecutive iterations to consider.

Definition at line 34 of file Iterate.h.

Member Function Documentation

all_less()

bool GooseFEM::Iterate::StopList::all_less ( double tol ) const

inline

Check of the sequence of n residuals are all below a tolerance.

Parameters

tol	Tolerance.

Returns

true if all n residuals are less than the tolerance.

Definition at line 91 of file Iterate.h.

data()

const std::vector< double > & GooseFEM::Iterate::StopList::data ( ) const

inline

Get the historic residuals.

Definition at line 99 of file Iterate.h.

descending()

bool GooseFEM::Iterate::StopList::descending ( ) const

inline

Check of the sequence of n residuals is in descending order.

Returns

true if the n residuals are in descending order.

Definition at line 80 of file Iterate.h.

get()

const std::vector< double > & GooseFEM::Iterate::StopList::get ( ) const

inline

Get the historic residuals.

Definition at line 108 of file Iterate.h.

reset() [1/2]

void GooseFEM::Iterate::StopList::reset ( )

inline

Reset all residuals to infinity.

Definition at line 43 of file Iterate.h.

reset() [2/2]

void GooseFEM::Iterate::StopList::reset ( size_t n )

inline

Reset all residuals to infinity, and change the number of residuals to check.

Parameters

n	Number of consecutive iterations to consider.

Definition at line 53 of file Iterate.h.

roll_insert()

void GooseFEM::Iterate::StopList::roll_insert ( double res )

inline

Roll the list with the residuals, and add a new residual to the end.

In Python code this function corresponds to::

 residuals = residuals[1:] + [new_residual]

I.e. the residual of n iterations ago will be forgotten.

Parameters

res	New residual to add to the list of residuals.

Definition at line 69 of file Iterate.h.

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

• GooseFEM/Iterate.h