Package org.apache.sysds.runtime.compress.lib

Class CLALibSquash

java.lang.Object

org.apache.sysds.runtime.compress.lib.CLALibSquash

public final class CLALibSquash
extends Object

Squash or recompress is processing each column group and trying to find a better compressed representation for each.

Method Summary

Modifier and Type	Method	Description
static CompressedMatrixBlock	squash(CompressedMatrixBlock m, int k)	Squash or recompress is process each column group in the given Compressed Matrix Block and tries to recompress each column.

Methods inherited from class java.lang.Object

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

Method Details

squash

public static CompressedMatrixBlock squash(CompressedMatrixBlock m,
 int k)

Squash or recompress is process each column group in the given Compressed Matrix Block and tries to recompress each column.

Parameters:

m - The input compressed matrix

k - The parallelization degree allowed in this process

Returns:

A replaced Compressed Matrix Block, note the old block is also modified