org.apache.sysds.runtime.compress.cocode

Class CoCodeBinPacking

java.lang.Object

org.apache.sysds.runtime.compress.cocode.AColumnCoCoder

org.apache.sysds.runtime.compress.cocode.CoCodeBinPacking

public class CoCodeBinPacking
extends AColumnCoCoder

Column group partitioning with bin packing heuristic.

Field Summary

Fields

Modifier and Type	Field and Description
static double	BIN_CAPACITY Use a constant partition size independent of the number of rows in order to ensure constant compression speed independent of blocking.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

BIN_CAPACITY

public static double BIN_CAPACITY

Use a constant partition size independent of the number of rows in order to ensure constant compression speed independent of blocking. Higher values gives more CoCoding at the cost of longer compressionTimes. VLDB 2018 Paper: Default 0.000032