TemplateCell.HopInputComparator (Apache SystemDS 3.0.0 API)

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 Description
  
  HopInputComparator()
  
  HopInputComparator(Hop driver)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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
    equals, reversed, 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>