org.apache.sysds.runtime.compress.estim

Class CompressedSizeInfo

java.lang.Object

org.apache.sysds.runtime.compress.estim.CompressedSizeInfo

public class CompressedSizeInfo
extends Object

A helper reusable object for maintaining information about estimated compression

Field Summary

Fields

Modifier and Type	Field and Description
List<Integer>	colsC
List<Integer>	colsUC
HashMap<Integer,Double>	compRatios
CompressedSizeInfoColGroup[]	compressionInfo
int	nnzUC

Constructor Summary

Constructors

Constructor and Description
CompressedSizeInfo(CompressedSizeInfoColGroup[] compressionInfo, List<Integer> colsC, List<Integer> colsUC, HashMap<Integer,Double> compRatios, int nnzUC)

Method Summary

Modifier and Type	Method and Description
CompressedSizeInfoColGroup	getGroupInfo(int index)
long	memoryEstimate() Method for returning the calculated memory usage from this specific compression plan.

Methods inherited from class java.lang.Object

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

Field Detail

compressionInfo

public CompressedSizeInfoColGroup[] compressionInfo

colsC

public List<Integer> colsC

colsUC

public List<Integer> colsUC

compRatios

public HashMap<Integer,Double> compRatios

nnzUC

public int nnzUC

Constructor Detail

CompressedSizeInfo

public CompressedSizeInfo(CompressedSizeInfoColGroup[] compressionInfo,
                          List<Integer> colsC,
                          List<Integer> colsUC,
                          HashMap<Integer,Double> compRatios,
                          int nnzUC)

Method Detail

getGroupInfo

public CompressedSizeInfoColGroup getGroupInfo(int index)

memoryEstimate

public long memoryEstimate()

Method for returning the calculated memory usage from this specific compression plan.

Returns:

The in memory estimate as a long counting bytes.