oofem::WallClockLoadBalancerMonitor Class Reference

#include <wallclockloadbalancermonitor.h>

Inheritance diagram for oofem::WallClockLoadBalancerMonitor:

Collaboration diagram for oofem::WallClockLoadBalancerMonitor:

Public Member Functions
	WallClockLoadBalancerMonitor (EngngModel *em)
LoadBalancerDecisionType	decide (TimeStep *) override
	Returns flag indicating whether rebalancing is necessary; should update node weights as well.
void	initializeFrom (InputRecord &ir) override
	Initializes receiver according to object description stored in input record.
const char *	giveClassName () const override
	Returns class name of the receiver.
Public Member Functions inherited from oofem::LoadBalancerMonitor
	LoadBalancerMonitor (EngngModel *em)
virtual	~LoadBalancerMonitor ()
const FloatArray &	giveProcessorWeights ()
	Returns processor weights; the larger weight means more powerful node, sum of weights should equal to one.

Protected Attributes
double	relWallClockImbalanceTreshold
	Declares min abs imbalance to perform relative imbalance check.
double	absWallClockImbalanceTreshold
double	minAbsWallClockImbalanceTreshold
int	lbstep
	The rebalancing done every lbstep.
std ::list< Range >	perturbedSteps
	List of steps with perturbed balancing.
double	perturbFactor
	Perturbing factor.
IntArray	recoveredSteps
	list of step at which to performed lb recovery.
FloatArray	processingWeights
	processing weights for lb recovery.
Protected Attributes inherited from oofem::LoadBalancerMonitor
EngngModel *	emodel
FloatArray	nodeWeights
bool	staticNodeWeightFlag

Additional Inherited Members
Public Types inherited from oofem::LoadBalancerMonitor
enum	LoadBalancerDecisionType { LBD_CONTINUE , LBD_RECOVER }

Detailed Description

Implementation of simple wall-clock based monitor. It detect imbalance based on wall clock difference required for solution step on particular nodes. When difference in wall clock solution times is greater than a threshold value, the load migration is performed.

Definition at line 69 of file wallclockloadbalancermonitor.h.

Constructor & Destructor Documentation

WallClockLoadBalancerMonitor()

oofem::WallClockLoadBalancerMonitor::WallClockLoadBalancerMonitor ( EngngModel * em )

inline

Definition at line 87 of file wallclockloadbalancermonitor.h.

References absWallClockImbalanceTreshold, lbstep, oofem::LoadBalancerMonitor::LoadBalancerMonitor(), minAbsWallClockImbalanceTreshold, and relWallClockImbalanceTreshold.

Member Function Documentation

decide()

LoadBalancerMonitor::LoadBalancerDecisionType oofem::WallClockLoadBalancerMonitor::decide ( TimeStep * )

overridevirtual

Returns flag indicating whether rebalancing is necessary; should update node weights as well.

Implements oofem::LoadBalancerMonitor.

Definition at line 50 of file wallclockloadbalancermonitor.C.

References oofem::Element_remote, oofem::LoadBalancerMonitor::emodel, oofem::Domain::giveElement(), oofem::TimeStep::giveNumber(), oofem::Domain::giveNumberOfElements(), oofem::Element::giveParallelMode(), oofem::LoadBalancerMonitor::LBD_CONTINUE, oofem::LoadBalancerMonitor::LBD_RECOVER, oofem::max(), oofem::min(), oofem::LoadBalancerMonitor::nodeWeights, OOFEM_ERROR, OOFEM_LOG_RELEVANT, perturbedSteps, perturbFactor, oofem::Element::predictRelativeComputationalCost(), processingWeights, recoveredSteps, and oofem::LoadBalancerMonitor::staticNodeWeightFlag.

giveClassName()

const char * oofem::WallClockLoadBalancerMonitor::giveClassName ( ) const

inlineoverridevirtual

Returns class name of the receiver.

Implements oofem::LoadBalancerMonitor.

Definition at line 99 of file wallclockloadbalancermonitor.h.

initializeFrom()

void oofem::WallClockLoadBalancerMonitor::initializeFrom ( InputRecord & ir )

overridevirtual

Initializes receiver according to object description stored in input record.

Reimplemented from oofem::LoadBalancerMonitor.

Definition at line 227 of file wallclockloadbalancermonitor.C.

References _IFT_WallClockLoadBalancerMonitor_abswct, _IFT_WallClockLoadBalancerMonitor_lbstep, _IFT_WallClockLoadBalancerMonitor_minwct, _IFT_WallClockLoadBalancerMonitor_perturbedsteps, _IFT_WallClockLoadBalancerMonitor_perturbfactor, _IFT_WallClockLoadBalancerMonitor_processingweights, _IFT_WallClockLoadBalancerMonitor_recoveredsteps, _IFT_WallClockLoadBalancerMonitor_relwct, absWallClockImbalanceTreshold, IR_GIVE_OPTIONAL_FIELD, lbstep, minAbsWallClockImbalanceTreshold, OOFEM_ERROR, perturbedSteps, perturbFactor, processingWeights, recoveredSteps, and relWallClockImbalanceTreshold.

Member Data Documentation

absWallClockImbalanceTreshold

double oofem::WallClockLoadBalancerMonitor::absWallClockImbalanceTreshold

protected

Definition at line 73 of file wallclockloadbalancermonitor.h.

Referenced by initializeFrom(), and WallClockLoadBalancerMonitor().

lbstep

int oofem::WallClockLoadBalancerMonitor::lbstep

protected

The rebalancing done every lbstep.

Definition at line 75 of file wallclockloadbalancermonitor.h.

Referenced by initializeFrom(), and WallClockLoadBalancerMonitor().

minAbsWallClockImbalanceTreshold

double oofem::WallClockLoadBalancerMonitor::minAbsWallClockImbalanceTreshold

protected

Definition at line 73 of file wallclockloadbalancermonitor.h.

Referenced by initializeFrom(), and WallClockLoadBalancerMonitor().

perturbedSteps

std :: list< Range > oofem::WallClockLoadBalancerMonitor::perturbedSteps

protected

List of steps with perturbed balancing.

Definition at line 78 of file wallclockloadbalancermonitor.h.

Referenced by decide(), and initializeFrom().

perturbFactor

double oofem::WallClockLoadBalancerMonitor::perturbFactor

protected

Perturbing factor.

Definition at line 80 of file wallclockloadbalancermonitor.h.

Referenced by decide(), and initializeFrom().

processingWeights

FloatArray oofem::WallClockLoadBalancerMonitor::processingWeights

protected

processing weights for lb recovery.

Definition at line 84 of file wallclockloadbalancermonitor.h.

Referenced by decide(), and initializeFrom().

recoveredSteps

IntArray oofem::WallClockLoadBalancerMonitor::recoveredSteps

protected

list of step at which to performed lb recovery.

Definition at line 82 of file wallclockloadbalancermonitor.h.

Referenced by decide(), and initializeFrom().

relWallClockImbalanceTreshold

double oofem::WallClockLoadBalancerMonitor::relWallClockImbalanceTreshold

protected

Declares min abs imbalance to perform relative imbalance check.

Definition at line 73 of file wallclockloadbalancermonitor.h.

Referenced by initializeFrom(), and WallClockLoadBalancerMonitor().

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

• wallclockloadbalancermonitor.h
• wallclockloadbalancermonitor.C