Package org.apache.sysds.runtime.controlprogram.parfor

Class ResultMergeFrameLocalMemory

java.lang.Object

org.apache.sysds.runtime.controlprogram.parfor.ResultMerge<FrameObject>

org.apache.sysds.runtime.controlprogram.parfor.ResultMergeFrameLocalMemory

All Implemented Interfaces:

Serializable

public class ResultMergeFrameLocalMemory
extends ResultMerge<FrameObject>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ResultMergeFrameLocalMemory(FrameObject out, FrameObject[] in, String outputFilename, boolean accum)

Method Summary

Modifier and Type	Method	Description
FrameObject	executeParallelMerge(int par)	Merge all given input matrices in parallel into the given output matrix.
FrameObject	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

ResultMergeFrameLocalMemory

public ResultMergeFrameLocalMemory(FrameObject out,
                                   FrameObject[] in,
                                   String outputFilename,
                                   boolean accum)

Method Detail

executeSerialMerge

public FrameObject executeSerialMerge()

Description copied from class: ResultMerge

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.

Specified by:

executeSerialMerge in class ResultMerge<FrameObject>

Returns:

output (merged) matrix

executeParallelMerge

public FrameObject executeParallelMerge(int par)

Description copied from class: ResultMerge

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.

Specified by:

executeParallelMerge in class ResultMerge<FrameObject>

Parameters:

par - degree of parallelism

Returns:

output (merged) matrix