Package org.apache.sysds.hops.cost

Class FederatedCostEstimator

java.lang.Object

org.apache.sysds.hops.cost.FederatedCostEstimator

public class FederatedCostEstimator
extends Object

Cost estimator for federated executions with methods and constants for going through DML programs to estimate costs.

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_MEMORY_ESTIMATE
static double	WORKER_COMPUTE_BANDWIDTH_FLOPS
static double	WORKER_DEGREE_OF_PARALLELISM
static double	WORKER_NETWORK_BANDWIDTH_BYTES_PS
static double	WORKER_READ_BANDWIDTH_BYTES_PS

Constructor Summary

Constructors

Constructor	Description
FederatedCostEstimator()

Method Summary

Modifier and Type	Method	Description
static FederatedCost	costEstimate(HopRel root, MemoTable hopRelMemo)	Return cost estimate in bytes of Hop DAG starting from given root HopRel.
FederatedCost	costEstimate(Hop root)	Return cost estimate in bytes of Hop DAG starting from given root.
FederatedCost	costEstimate(DMLProgram dmlProgram)	Estimate cost of given DML program in bytes.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MEMORY_ESTIMATE

public static int DEFAULT_MEMORY_ESTIMATE

WORKER_NETWORK_BANDWIDTH_BYTES_PS

public static double WORKER_NETWORK_BANDWIDTH_BYTES_PS

WORKER_COMPUTE_BANDWIDTH_FLOPS

public static double WORKER_COMPUTE_BANDWIDTH_FLOPS

WORKER_DEGREE_OF_PARALLELISM

public static double WORKER_DEGREE_OF_PARALLELISM

WORKER_READ_BANDWIDTH_BYTES_PS

public static double WORKER_READ_BANDWIDTH_BYTES_PS

Constructor Detail

FederatedCostEstimator

public FederatedCostEstimator()

Method Detail

costEstimate

public FederatedCost costEstimate(DMLProgram dmlProgram)

Estimate cost of given DML program in bytes.

Parameters:

dmlProgram - for which the cost is estimated

Returns:

federated cost object with cost estimate in bytes

costEstimate

public FederatedCost costEstimate(Hop root)

Return cost estimate in bytes of Hop DAG starting from given root.

Parameters:

root - of Hop DAG for which cost is estimated

Returns:

cost estimation of Hop DAG starting from given root

costEstimate

public static FederatedCost costEstimate(HopRel root,
                                         MemoTable hopRelMemo)

Return cost estimate in bytes of Hop DAG starting from given root HopRel.

Parameters:

root - HopRel of Hop DAG for which cost is estimated

hopRelMemo - memo table of HopRels for calculating input costs

Returns:

cost estimation of Hop DAG starting from given root HopRel