Package org.apache.sysds.hops

Class AggUnaryOp

java.lang.Object

org.apache.sysds.hops.Hop

org.apache.sysds.hops.MultiThreadedHop

org.apache.sysds.hops.AggUnaryOp

All Implemented Interfaces:

ParseInfo

public class AggUnaryOp
extends MultiThreadedHop

Field Summary

Fields inherited from class org.apache.sysds.hops.Hop

_beginColumn, _beginLine, _endColumn, _endLine, _filename, _text, CPThreshold

Constructor Summary

Constructors

Constructor	Description
AggUnaryOp(String l, Types.DataType dt, Types.ValueType vt, Types.AggOp o, Types.Direction idx, Hop inp)

Method Summary

Modifier and Type	Method	Description
boolean	allowsAllExecTypes()
Object	clone()
boolean	compare(Hop that)
Lop	constructLops()
Types.Direction	getDirection()
Types.AggOp	getOp()
String	getOpString()
boolean	isGPUEnabled()	In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()), the exectype is determined by checking this method as well as memory budget of this Hop.
boolean	isMultiThreadedOpType()
boolean	isTransposeSafe()	Defines if this operation is transpose-safe, which means that the result of op(input) is equivalent to op(t(input)).
void	refreshSizeInformation()	Update the output size information for this hop.
void	setDirection(Types.Direction direction)
void	setOp(Types.AggOp op)

Methods inherited from class org.apache.sysds.hops.MultiThreadedHop

getMaxNumThreads, setMaxNumThreads

Methods inherited from class org.apache.sysds.hops.Hop

activatePrefetch, addAllInputs, addInput, checkAndSetForcedPlatform, checkAndSetInvalidCPDimsAndSize, clearMemEstimate, colsKnown, compressedSize, computeBoundsInformation, computeBoundsInformation, computeBoundsInformation, computeMemEstimate, computeSizeInformation, computeSizeInformation, computeSizeInformation, constructAndSetLopsDataFlowProperties, createOffsetLop, deactivatePrefetch, dimsKnown, dimsKnown, dimsKnownAny, getBeginColumn, getBeginLine, getBlocksize, getCompressedSize, getDataCharacteristics, getDataType, getDim, getDim1, getDim2, getEndColumn, getEndLine, getExecType, getFederatedOutput, getFilename, getForcedExecType, getHopID, getInput, getInput, getInputMemEstimate, getInputMemEstimate, getInputOutputSize, getIntermediateMemEstimate, getLength, getLops, getMemEstimate, getName, getNnz, getOutputMemEstimate, getOutputMemEstimate, getParent, getSparsity, getSpBroadcastSize, getText, getUpdateType, getValueType, hasCompressedInput, hasFederatedOutput, hasLocalOutput, hasValidCPDimsAndSize, isCompressedOutput, isFederated, isFederatedDataOp, isMatrix, isMemEstimated, isOutputEmptyBlocks, isRequiredDecompression, isScalar, isVisited, prefetchActivated, printErrorLocation, refreshColsParameterInformation, refreshColsParameterInformation, refreshMemEstimates, refreshRowsParameterInformation, refreshRowsParameterInformation, requiresCheckpoint, requiresCompression, requiresLineageCaching, requiresReblock, requiresRecompile, resetExecType, resetRecompilationFlag, resetRecompilationFlag, resetVisitStatus, resetVisitStatus, resetVisitStatus, resetVisitStatusForced, rowsKnown, setBeginColumn, setBeginLine, setBlocksize, setCompressedOutput, setCompressedSize, setDataType, setDim, setDim1, setDim2, setEndColumn, setEndLine, setExecType, setFederatedOutput, setFilename, setForcedExecType, setLops, setMemEstimate, setName, setNnz, setOutputEmptyBlocks, setParseInfo, setRequiresCheckpoint, setRequiresCompression, setRequiresCompression, setRequiresDeCompression, setRequiresLineageCaching, setRequiresReblock, setRequiresRecompile, setText, setUpdateType, setValueType, setVisited, setVisited, someInputFederated, toString, updateLopFedOut, updateLopFedOut

Methods inherited from class java.lang.Object

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

Constructor Details

AggUnaryOp

public AggUnaryOp(String l,
 Types.DataType dt,
 Types.ValueType vt,
 Types.AggOp o,
 Types.Direction idx,
 Hop inp)

Method Details

getOp

public Types.AggOp getOp()

setOp

public void setOp(Types.AggOp op)

getDirection

public Types.Direction getDirection()

setDirection

public void setDirection(Types.Direction direction)

isGPUEnabled

public boolean isGPUEnabled()

Description copied from class: Hop

In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()), the exectype is determined by checking this method as well as memory budget of this Hop. Please see findExecTypeByMemEstimate for more detail. This method is necessary because not all operator are supported efficiently on GPU (for example: operations on frames and scalar as well as operations such as table).

Specified by:

isGPUEnabled in class Hop

Returns:

true if the Hop is eligible for GPU Exectype.

constructLops

public Lop constructLops()

Specified by:

constructLops in class Hop

getOpString

public String getOpString()

Specified by:

getOpString in class Hop

allowsAllExecTypes

public boolean allowsAllExecTypes()

Specified by:

allowsAllExecTypes in class Hop

isMultiThreadedOpType

public boolean isMultiThreadedOpType()

Specified by:

isMultiThreadedOpType in class MultiThreadedHop

refreshSizeInformation

public void refreshSizeInformation()

Description copied from class: Hop

Update the output size information for this hop.

Specified by:

refreshSizeInformation in class Hop

isTransposeSafe

public boolean isTransposeSafe()

Description copied from class: Hop

Defines if this operation is transpose-safe, which means that the result of op(input) is equivalent to op(t(input)). Usually, this applies to aggregate operations with fixed output dimension. Finally, this information is very useful in order to safely optimize the plan for sparse vectors, which otherwise would be (currently) always represented dense.

Overrides:

isTransposeSafe in class Hop

Returns:

always returns false

clone

public Object clone()
             throws CloneNotSupportedException

Specified by:

clone in class Hop

Throws:

CloneNotSupportedException

compare

public boolean compare(Hop that)

Specified by:

compare in class Hop