org.apache.sysds.hops.codegen.template

Class TemplateCell.HopInputComparator

java.lang.Object

org.apache.sysds.hops.codegen.template.TemplateCell.HopInputComparator

All Implemented Interfaces:

Comparator<Hop>

Enclosing class:

TemplateCell

public static class TemplateCell.HopInputComparator
extends Object
implements Comparator<Hop>

Comparator to order input hops of the cell template. We try to order matrices-vectors-scalars via sorting by number of cells and for equal number of cells by sparsity to prefer sparse inputs as the main input for sparsity exploitation.

Constructor Summary

Constructors

Constructor and Description
HopInputComparator()
HopInputComparator(Hop driver)

Method Summary

Modifier and Type	Method and Description
int	compare(Hop h1, Hop h2)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

HopInputComparator

public HopInputComparator()

HopInputComparator

public HopInputComparator(Hop driver)

Method Detail

compare

public int compare(Hop h1,
                   Hop h2)

Specified by:

compare in interface Comparator<Hop>