NaNChecker

class fridom.framework.modules.NaNChecker(clock_trigger: ClockTrigger | None = None)

Bases: Module

Check if a state vector contains NaN values.

Description

This module checks if the state vector contains NaN values. If it does, the model panic flag is set to True and the model is stopped. Since it can be computationally expensive to check for NaNs every iteration, the module has a clock trigger that specifies when to check for NaNs.

Parameters

clock_triggerfr.ClockTrigger, optional

When to check for NaNs. If not specified, the module will check every 100 iteration steps.

__init__(clock_trigger: ClockTrigger | None = None) → None

Methods

__init__([clock_trigger])
disable()	Disable the module.
enable()	Enable the module.
is_enabled()	Whether the module is enabled or not.
reset()	Stop and start the module.
setup(mset[, setup_mode])	Set the module up.
start()	Start the module.
stop()	Stop the module.
update(mz)	Update the model state.

Attributes

clock_trigger	When to check for NaNs.
diff_module	The differentiation module to be used by this module.
grid	The grid of the model settings.
info	Return a dictionary with information about the time stepper.
interp_module	The interpolation module to be used by this module.
is_setup	Whether the module is set up.
mset	The model settings.
name
required_halo	The required halo points for this module.

name = 'NaN Checker'

update(mz: ModelState) → ModelState

Update the model state.

Description

This method is called by the model at each time step. Child classes should overwrite this method to update the module. Make sure to decorate the method with the @module_method decorator.

Parameters

mzfr.ModelState

The model state at the current time step.

Returns

fr.ModelState

The updated model state.

property clock_trigger: ClockTrigger

When to check for NaNs.