vt::vrt::collection::balance::NaivePersistence struct
#include <src/vt/vrt/collection/balance/model/naive_persistence.h>

Predicts future object loads as exactly matching their load in the last phase.

Base classes

class ComposedModel: Utility class to support implementation of composable load modeling components.

NaivePersistence(std::shared_ptr<balance::LoadModel> base) explicit: Constructor.

auto getModeledLoad(ElementIDStruct object, PhaseOffset when) const -> LoadType override: Provide an estimate of the given object's load during a specified interval.
auto getRawLoad(ElementIDStruct object, PhaseOffset offset) const -> LoadType override
auto getUserData(ElementIDStruct object, PhaseOffset when) const -> ElmUserDataType override
auto getNumPastPhasesNeeded(unsigned int look_back) const -> unsigned int override: Compute how many phases of past load statistics need to be kept available for the model to use.

Constructor.

Parameters
base in	The source of underlying load numbers to return; must not be null

Provide an estimate of the given object's load during a specified interval.

Parameters
object in	The object whose load is desired
when in	The interval in which the estimated load is desired
Returns	How much computation time the object is estimated to require

The updateLoads method must have been called before any call to this.

Compute how many phases of past load statistics need to be kept available for the model to use.

Parameters
look_back in	How many phases into the past the caller intends to query
Returns	How many phases of past load statistics will be needed to satisfy the requested history