SteadyStateRunner Class Reference

#include <SteadyStateRunner.hpp>

Inheritance diagram for SteadyStateRunner:

Collaboration diagram for SteadyStateRunner:

Public Member Functions
	SteadyStateRunner (boost::shared_ptr< AbstractCvodeCell > pModel, bool twoPaces=false)
Public Member Functions inherited from AbstractSteadyStateRunner
	AbstractSteadyStateRunner (boost::shared_ptr< AbstractCvodeCell > pModel)
virtual	~AbstractSteadyStateRunner ()
bool	RunToSteadyState ()
unsigned	GetNumEvaluations ()
void	SetMaxNumPaces (unsigned numPaces)

Protected Member Functions
virtual void	RunToSteadyStateImplementation ()

Private Attributes
bool	mTwoPaceScan

Additional Inherited Members
Protected Attributes inherited from AbstractSteadyStateRunner
boost::shared_ptr < AbstractCvodeCell >	mpModel
unsigned	mNumEvaluations
unsigned	mMaxNumPaces

Detailed Description

This class is to get a cell model to (approximately) steady state.

It does it by simply pacing and looking for a small change in the norm of the state variables between subsequent paces.

Note - because it looks for a small change in state variables between solves this method requires quite an accurate CVODE solution to do this efficiently (otherwise you just have to wait to get lucky on subsequent solves).

So although running with stricter tolerances takes longer per pace it can mean you detect a steady state in up to 3x fewer paces, so it is recommended to use a model with SetTolerances(1e-6, 1e-8); or stricter.

Definition at line 58 of file SteadyStateRunner.hpp.

Constructor & Destructor Documentation

SteadyStateRunner::SteadyStateRunner ( boost::shared_ptr< AbstractCvodeCell >  pModel, bool  twoPaces = false  )

inline

Constructor of a helper class for getting action potential models to steady state

Parameters

pModel	The cell model to run to steady state.
twoPaces	Whether to run two paces at once, for detection of steady state alternans.

Definition at line 80 of file SteadyStateRunner.hpp.

Member Function Documentation

void SteadyStateRunner::RunToSteadyStateImplementation ( )

protectedvirtual

Run the cell model to steady state

Here we don't do anything clever - we just gradually drift to the steady state, defined by < 1e-6 change in the norm of state variables between 1 (or 2 - see mTwoPaceScan) beats.

Implements AbstractSteadyStateRunner.

Definition at line 40 of file SteadyStateRunner.cpp.

References CopyToStdVector(), RegularStimulus::GetPeriod(), AbstractSteadyStateRunner::mMaxNumPaces, AbstractSteadyStateRunner::mNumEvaluations, AbstractSteadyStateRunner::mpModel, and mTwoPaceScan.

Member Data Documentation

bool SteadyStateRunner::mTwoPaceScan

private

whether we should do two paces at once (should detect steady alternans as well as single paces)

Definition at line 62 of file SteadyStateRunner.hpp.

Referenced by RunToSteadyStateImplementation().

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

• heart/src/odes/single_cell/SteadyStateRunner.hpp
• heart/src/odes/single_cell/SteadyStateRunner.cpp