Package org.apache.sysds.runtime.controlprogram.parfor.opt

Class CostEstimator

java.lang.Object

org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator

Direct Known Subclasses:

CostEstimatorHops, CostEstimatorRuntime

public abstract class CostEstimator
extends Object

Base class for all potential cost estimators TODO account for shared read-only matrices when computing aggregated stats

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CostEstimator.DataFormat
static enum	CostEstimator.ExcludeType
static enum	CostEstimator.TestMeasure

Field Summary

Fields

Modifier and Type	Field	Description
static final double	DEFAULT_EST_PARALLELISM
static final double	DEFAULT_MEM_ESTIMATE_CP
static final double	DEFAULT_MEM_ESTIMATE_SP
static final double	DEFAULT_TIME_ESTIMATE
static final long	FACTOR_NUM_ITERATIONS

Constructor Summary

Constructors

Constructor	Description
CostEstimator()

Method Summary

Modifier and Type	Method	Description
double	getEstimate(CostEstimator.TestMeasure measure, OptNode node)	Main estimation method.
double	getEstimate(CostEstimator.TestMeasure measure, OptNode node, boolean inclCondPart)
double	getEstimate(CostEstimator.TestMeasure measure, OptNode node, boolean inclCondPart, Collection<String> vars, CostEstimator.ExcludeType extype)
double	getEstimate(CostEstimator.TestMeasure measure, OptNode node, Types.ExecType et)	Main estimation method.
abstract double	getLeafNodeEstimate(CostEstimator.TestMeasure measure, OptNode node)	Main leaf node estimation method - to be overwritten by specific cost estimators
abstract double	getLeafNodeEstimate(CostEstimator.TestMeasure measure, OptNode node, Types.ExecType et)	Main leaf node estimation method - to be overwritten by specific cost estimators

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT_EST_PARALLELISM

public static final double DEFAULT_EST_PARALLELISM

See Also:

• Constant Field Values

FACTOR_NUM_ITERATIONS

public static final long FACTOR_NUM_ITERATIONS

See Also:

• Constant Field Values

DEFAULT_TIME_ESTIMATE

public static final double DEFAULT_TIME_ESTIMATE

See Also:

• Constant Field Values

DEFAULT_MEM_ESTIMATE_CP

public static final double DEFAULT_MEM_ESTIMATE_CP

See Also:

• Constant Field Values

DEFAULT_MEM_ESTIMATE_SP

public static final double DEFAULT_MEM_ESTIMATE_SP

See Also:

• Constant Field Values

Constructor Details

CostEstimator

public CostEstimator()

Method Details

getLeafNodeEstimate

public abstract double getLeafNodeEstimate(CostEstimator.TestMeasure measure,
 OptNode node)

Main leaf node estimation method - to be overwritten by specific cost estimators

Parameters:

measure - ?

node - internal representation of a plan alternative for program blocks and instructions

Returns:

estimate?

getLeafNodeEstimate

public abstract double getLeafNodeEstimate(CostEstimator.TestMeasure measure,
 OptNode node,
 Types.ExecType et)

Main leaf node estimation method - to be overwritten by specific cost estimators

Parameters:

measure - ?

node - internal representation of a plan alternative for program blocks and instructions

et - forced execution type for leaf node

Returns:

estimate?

getEstimate

public double getEstimate(CostEstimator.TestMeasure measure,
 OptNode node)

Main estimation method.

Parameters:

measure - ?

node - internal representation of a plan alternative for program blocks and instructions

Returns:

estimate?

getEstimate

public double getEstimate(CostEstimator.TestMeasure measure,
 OptNode node,
 boolean inclCondPart)

getEstimate

public double getEstimate(CostEstimator.TestMeasure measure,
 OptNode node,
 boolean inclCondPart,
 Collection<String> vars,
 CostEstimator.ExcludeType extype)

getEstimate

public double getEstimate(CostEstimator.TestMeasure measure,
 OptNode node,
 Types.ExecType et)

Main estimation method.

Parameters:

measure - estimate type (time or memory)

node - plan opt tree node

et - execution type

Returns:

estimate