Requests a slab size based on the desired step in regions with a fixed slab fraction. More...

#include <FixedLtsRatio.hpp>

Classes
struct	StepChoosers

Public Types
using	options = tmpl::list<StepChoosers>
using	argument_tags = tmpl::list<::Tags::DataBox>

Public Member Functions
	FixedLtsRatio (std::vector< std::unique_ptr<::StepChooser< StepChooserUse::LtsStep > > > step_choosers)
template<typename DbTags>
TimeStepRequest	operator() (const db::DataBox< DbTags > &box, const double) const
bool	uses_local_data () const override
	Whether the result can differ on different elements, so requiring communication to synchronize the result across the domain. This is ignored for LTS step changing.
bool	can_be_delayed () const override
	Whether the result can be applied with a delay.
template<typename F>
void	for_each_step_chooser (F &&f) const
void	pup (PUP::er &p) override
Public Member Functions inherited from StepChooser< StepChooserUse::Slab >
	WRAPPED_PUPable_abstract (StepChooser)
TimeStepRequest	desired_step (const double last_step, const db::DataBox< DbTags > &box) const
	The last_step parameter describes the step size to be adjusted. It may be the step size or the slab size, or may be infinite if the appropriate size cannot be determined.

Static Public Attributes
static constexpr Options::String	help

Detailed Description

Requests a slab size based on the desired step in regions with a fixed slab fraction.

Note: This StepChooser is not included in the standard_step_choosers list. Executables using the feature must include it explicitly in the factory_creation struct and add the Tags::FixedLtsRatio tag to the element DataBox.

Member Function Documentation

◆ can_be_delayed()

bool StepChoosers::FixedLtsRatio::can_be_delayed ( ) const

overridevirtual

Whether the result can be applied with a delay.

StepChoosers setting the .end or .end_hard_limit fields of TimeStepRequest must return false here.

Implements StepChooser< StepChooserUse::Slab >.

◆ uses_local_data()

bool StepChoosers::FixedLtsRatio::uses_local_data ( ) const

overridevirtual

Whether the result can differ on different elements, so requiring communication to synchronize the result across the domain. This is ignored for LTS step changing.

Note: As this is only used for slab-size changing, the last_step passed to the call operator is not considered local data.

Implements StepChooser< StepChooserUse::Slab >.

Member Data Documentation

◆ help

Options::String StepChoosers::FixedLtsRatio::help

staticconstexpr

Initial value:

{
      "Requests a slab size based on the desired step in regions with a fixed "
      "slab fraction."}

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

src/Time/StepChoosers/FixedLtsRatio.hpp

Classes

Public Types

Public Member Functions