org.apache.sysds.hops

Class FunctionOp

java.lang.Object

org.apache.sysds.hops.Hop

org.apache.sysds.hops.FunctionOp

All Implemented Interfaces:

ParseInfo

public class FunctionOp
extends Hop

This FunctionOp represents the call to a DML-bodied or external function. Note: Currently, we support expressions in function arguments along with function calls in expressions with single outputs, leaving multiple outputs handling as it is.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FunctionOp.FunctionType

Field Summary

Fields

Modifier and Type	Field and Description
static String	OPCODE

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

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

Constructor Summary

Constructors

Constructor and Description
FunctionOp(FunctionOp.FunctionType type, String fnamespace, String fname, String[] inputNames, List<Hop> inputs, String[] outputNames, ArrayList<Hop> outputHops)
FunctionOp(FunctionOp.FunctionType type, String fnamespace, String fname, String[] inputNames, List<Hop> inputs, String[] outputNames, boolean singleOut)

Method Summary

Modifier and Type	Method and Description
boolean	allowsAllExecTypes()
void	checkArity() FunctionOps may have any number of inputs.
Object	clone()
boolean	compare(Hop that)
void	computeMemEstimate(MemoTable memo) Computes the estimate of memory required to store the input/output of this hop in memory.
Lop	constructLops()
boolean	containsOutput(String varname)
String	getFunctionKey()
String	getFunctionName()
String	getFunctionNamespace()
FunctionOp.FunctionType	getFunctionType()
String[]	getInputVariableNames()
String	getOpString()
ArrayList<Hop>	getOutputs()
String[]	getOutputVariableNames()
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.
void	refreshSizeInformation() Update the output size information for this hop.
void	setCallOptimized(boolean opt)
void	setFunctionName(String fname)
void	setFunctionNamespace(String fnamespace)
void	setInputVariableNames(String[] names)

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

addAllInputs, addInput, checkAndSetForcedPlatform, checkAndSetInvalidCPDimsAndSize, clearMemEstimate, colsKnown, computeBoundsInformation, computeBoundsInformation, computeBoundsInformation, computeSizeInformation, computeSizeInformation, computeSizeInformation, constructAndSetLopsDataFlowProperties, createOffsetLop, dimsKnown, dimsKnown, dimsKnownAny, getBeginColumn, getBeginLine, getBlocksize, getDataCharacteristics, getDataType, getDim, getDim1, getDim2, getEndColumn, getEndLine, getExecType, getFilename, getForcedExecType, getHopID, getInput, getInputMemEstimate, getInputOutputSize, getIntermediateMemEstimate, getLength, getLops, getMemEstimate, getName, getNnz, getOutputMemEstimate, getParent, getPrivacy, getSparsity, getSpBroadcastSize, getText, getUpdateType, getValueType, hasMatrixInputWithDifferentBlocksizes, hasValidCPDimsAndSize, isMatrix, isMemEstimated, isOutputEmptyBlocks, isScalar, isTransposeSafe, isVisited, printErrorLocation, refreshColsParameterInformation, refreshColsParameterInformation, refreshMemEstimates, refreshRowsParameterInformation, refreshRowsParameterInformation, requiresCheckpoint, requiresCompression, requiresLineageCaching, requiresReblock, requiresRecompile, resetExecType, resetRecompilationFlag, resetRecompilationFlag, resetVisitStatus, resetVisitStatus, resetVisitStatus, resetVisitStatusForced, rowsKnown, setBeginColumn, setBeginLine, setBlocksize, setDataType, setDim, setDim1, setDim2, setEndColumn, setEndLine, setFilename, setForcedExecType, setLops, setMemEstimate, setName, setNnz, setOutputEmptyBlocks, setParseInfo, setPrivacy, setRequiresCheckpoint, setRequiresCompression, setRequiresLineageCaching, setRequiresReblock, setRequiresRecompile, setText, setUpdateType, setValueType, setVisited, setVisited

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sysds.parser.ParseInfo

ctxAndFilenameToParseInfo

Field Detail

OPCODE

public static final String OPCODE

See Also:

Constant Field Values

Constructor Detail

FunctionOp

public FunctionOp(FunctionOp.FunctionType type,
                  String fnamespace,
                  String fname,
                  String[] inputNames,
                  List<Hop> inputs,
                  String[] outputNames,
                  ArrayList<Hop> outputHops)

FunctionOp

public FunctionOp(FunctionOp.FunctionType type,
                  String fnamespace,
                  String fname,
                  String[] inputNames,
                  List<Hop> inputs,
                  String[] outputNames,
                  boolean singleOut)

Method Detail

checkArity

public void checkArity()

FunctionOps may have any number of inputs.

Specified by:

checkArity in class Hop

getFunctionKey

public String getFunctionKey()

getFunctionNamespace

public String getFunctionNamespace()

getFunctionName

public String getFunctionName()

setFunctionName

public void setFunctionName(String fname)

setFunctionNamespace

public void setFunctionNamespace(String fnamespace)

setInputVariableNames

public void setInputVariableNames(String[] names)

getOutputs

public ArrayList<Hop> getOutputs()

getInputVariableNames

public String[] getInputVariableNames()

getOutputVariableNames

public String[] getOutputVariableNames()

containsOutput

public boolean containsOutput(String varname)

getFunctionType

public FunctionOp.FunctionType getFunctionType()

setCallOptimized

public void setCallOptimized(boolean opt)

allowsAllExecTypes

public boolean allowsAllExecTypes()

Specified by:

allowsAllExecTypes in class Hop

computeMemEstimate

public void computeMemEstimate(MemoTable memo)

Description copied from class: Hop

Computes the estimate of memory required to store the input/output of this hop in memory. This is the default implementation (orchestration of hop-specific implementation) that should suffice for most hops. If a hop requires more control, this method should be overwritten with awareness of (1) output estimates, and (2) propagation of worst-case matrix characteristics (dimensions, sparsity). TODO remove memo table and, on constructor refresh, inference in refresh, single compute mem, maybe general computeMemEstimate, flags to indicate if estimate or not.

Overrides:

computeMemEstimate in class Hop

Parameters:

memo - memory table

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

refreshSizeInformation

public void refreshSizeInformation()

Description copied from class: Hop

Update the output size information for this hop.

Specified by:

refreshSizeInformation in class Hop

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