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

Class CostEstimatorRuntime

java.lang.Object

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

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

public class CostEstimatorRuntime
extends CostEstimator

Cost estimator for runtime programs. Previously this estimator used an offline created performance profile. Since SystemDS 1.0, this estimator uses a time-based cost model that relies on floating operations and I/O, which does not require explicit profiling.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator

CostEstimator.DataFormat, CostEstimator.ExcludeType, CostEstimator.TestMeasure

Field Summary

Fields inherited from class org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator

DEFAULT_EST_PARALLELISM, DEFAULT_MEM_ESTIMATE_CP, DEFAULT_MEM_ESTIMATE_SP, DEFAULT_TIME_ESTIMATE, FACTOR_NUM_ITERATIONS

Constructor Summary

Constructors

Constructor	Description
CostEstimatorRuntime(OptTreePlanMapping map, LocalVariableMap vars)

Method Summary

Modifier and Type	Method	Description
double	getLeafNodeEstimate(CostEstimator.TestMeasure measure, OptNode node)	Main leaf node estimation method - to be overwritten by specific cost estimators
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 org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator

getEstimate, getEstimate, getEstimate, getEstimate

Methods inherited from class java.lang.Object

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

Constructor Detail

CostEstimatorRuntime

public CostEstimatorRuntime(OptTreePlanMapping map,
                            LocalVariableMap vars)

Method Detail

getLeafNodeEstimate

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

Description copied from class: CostEstimator

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

Specified by:

getLeafNodeEstimate in class CostEstimator

Parameters:

measure - ?

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

Returns:

estimate?

getLeafNodeEstimate

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

Description copied from class: CostEstimator

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

Specified by:

getLeafNodeEstimate in class CostEstimator

Parameters:

measure - ?

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

et - forced execution type for leaf node

Returns:

estimate?