Package org.apache.sysds.hops

Class DataGenOp

java.lang.Object

org.apache.sysds.hops.Hop

org.apache.sysds.hops.MultiThreadedHop

org.apache.sysds.hops.DataGenOp

All Implemented Interfaces:

ParseInfo

public class DataGenOp
extends MultiThreadedHop

A DataGenOp can be rand (or matrix constructor), sequence, and sample - these operators have different parameters and use a map of parameter type to hop position.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	UNSPECIFIED_SEED

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

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

Constructor Summary

Constructors

Constructor	Description
DataGenOp(Types.OpOpDG mthd, DataIdentifier id)
DataGenOp(Types.OpOpDG mthd, DataIdentifier id, HashMap<String,Hop> inputParameters)	Creates a new Rand HOP.

Method Summary

Modifier and Type	Method	Description
boolean	allowsAllExecTypes()
Object	clone()
boolean	compare(Hop that)
Lop	constructLops()
static long	generateRandomSeed()
Hop	getConstantValue()
double	getIncrementValue()
Hop	getInput(String key)
Types.OpOpDG	getOp()
String	getOpString()
Hop	getParam(String key)
int	getParamIndex(String key)
HashMap<String,Integer>	getParamIndexMap()
boolean	hasConstantValue()
boolean	hasConstantValue(double val)
boolean	hasUnspecifiedSeed()
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()
void	refreshSizeInformation()	Update the output size information for this hop.
void	setIncrementValue(double incr)
void	setInput(String key, Hop hop, boolean linkParent)

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, isTransposeSafe, 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

Field Details

UNSPECIFIED_SEED

public static final long UNSPECIFIED_SEED

See Also:

• Constant Field Values

Constructor Details

DataGenOp

public DataGenOp(Types.OpOpDG mthd,
 DataIdentifier id,
 HashMap<String,Hop> inputParameters)

Creates a new Rand HOP.

Parameters:

mthd - data gen method

id - the target identifier

inputParameters - HashMap of the input parameters for Rand Hop

DataGenOp

public DataGenOp(Types.OpOpDG mthd,
 DataIdentifier id)

Method Details

getOpString

public String getOpString()

Specified by:

getOpString in class Hop

getOp

public Types.OpOpDG getOp()

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.

isMultiThreadedOpType

public boolean isMultiThreadedOpType()

Specified by:

isMultiThreadedOpType in class MultiThreadedHop

constructLops

public Lop constructLops()

Specified by:

constructLops in class Hop

allowsAllExecTypes

public boolean allowsAllExecTypes()

Specified by:

allowsAllExecTypes in class Hop

refreshSizeInformation

public void refreshSizeInformation()

Description copied from class: Hop

Update the output size information for this hop.

Specified by:

refreshSizeInformation in class Hop

getParamIndexMap

public HashMap<String,Integer> getParamIndexMap()

getParam

public Hop getParam(String key)

getParamIndex

public int getParamIndex(String key)

getInput

public Hop getInput(String key)

setInput

public void setInput(String key,
 Hop hop,
 boolean linkParent)

hasConstantValue

public boolean hasConstantValue()

hasConstantValue

public boolean hasConstantValue(double val)

hasUnspecifiedSeed

public boolean hasUnspecifiedSeed()

getConstantValue

public Hop getConstantValue()

setIncrementValue

public void setIncrementValue(double incr)

getIncrementValue

public double getIncrementValue()

generateRandomSeed

public static long generateRandomSeed()

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