ResultMerge (Apache SystemDS 3.0.0 API)

java.lang.Object
- org.apache.sysds.runtime.controlprogram.parfor.ResultMerge<T>

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ResultMergeFrameLocalMemory, ResultMergeMatrix
```
public abstract class ResultMerge<T extends CacheableData<?>>
extends Object
implements Serializable
```
See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ResultMerge(T out, T[] in, String outputFilename, boolean accum)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract T`	`executeParallelMerge(int par)`	Merge all given input matrices in parallel into the given output matrix.
`abstract T`	`executeSerialMerge()`	Merge all given input matrices sequentially into the given output matrix.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ResultMerge
```
public ResultMerge(T out,
                   T[] in,
                   String outputFilename,
                   boolean accum)
```
- Method Detail
  - executeSerialMerge
```
public abstract T executeSerialMerge()
```
    Merge all given input matrices sequentially into the given output matrix. The required space in-memory is the size of the output matrix plus the size of one input matrix at a time.
    
    Returns:
    
    output (merged) matrix
  - executeParallelMerge
```
public abstract T executeParallelMerge(int par)
```
    Merge all given input matrices in parallel into the given output matrix. The required space in-memory is the size of the output matrix plus the size of all input matrices.
    
    Parameters:
    
    par - degree of parallelism
    
    Returns:
    
    output (merged) matrix