org.apache.sysds.hops

## Class BinaryOp

- java.lang.Object
- - org.apache.sysds.hops.Hop
  - - org.apache.sysds.hops.MultiThreadedHop
    - - org.apache.sysds.hops.BinaryOp

- All Implemented Interfaces:
    ParseInfo

      public class BinaryOp
      extends MultiThreadedHop

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `static class` | `BinaryOp.AppendMethod`
    `static class` | `BinaryOp.MMBinaryMethod`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static double` | `APPEND_MEM_MULTIPLIER`
    `static BinaryOp.AppendMethod` | `FORCED_APPEND_METHOD`
    `static BinaryOp.MMBinaryMethod` | `FORCED_BINARY_METHOD`

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

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

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BinaryOp(String l, Types.DataType dt, Types.ValueType vt, Types.OpOp2 o, Hop inp1, Hop inp2)`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `allowsAllExecTypes()`
    `void` | `checkArity()` Check whether this Hop has a correct number of inputs.
    `Object` | `clone()`
    `boolean` | `compare(Hop that)`
    `Lop` | `constructLops()`
    `static Lop` | `constructSPAppendLop(Hop left, Hop right, Types.DataType dt, Types.ValueType vt, boolean cbind, Hop current)`
    `static double` | `footprintInMapper(long m1_dim1, long m1_dim2, long m2_dim1, long m2_dim2, long m1_rpb, long m1_cpb)` Estimates the memory footprint of MapMult operation depending on which input is put into distributed cache.
    `Types.OpOp2` | `getComplementPPredOperation()`
    `Types.OpOp2` | `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` | `isOuter()`
    `boolean` | `isPPredOperation()`
    `void` | `refreshSizeInformation()` Update the output size information for this hop.
    `static boolean` | `requiresReplication(Hop left, Hop right)`
    `void` | `setOp(Types.OpOp2 iop)`
    `void` | `setOuterVectorOperation(boolean flag)`
    `boolean` | `supportsMatrixScalarOperations()`

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

      `getMaxNumThreads, setMaxNumThreads`

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

      `addAllInputs, addInput, checkAndSetForcedPlatform, checkAndSetInvalidCPDimsAndSize, clearMemEstimate, colsKnown, computeBoundsInformation, computeBoundsInformation, computeBoundsInformation, computeMemEstimate, computeSizeInformation, computeSizeInformation, computeSizeInformation, constructAndSetLopsDataFlowProperties, createOffsetLop, dimsKnown, dimsKnown, dimsKnownAny, getBeginColumn, getBeginLine, getBlocksize, getDataCharacteristics, getDataType, getDim, getDim1, getDim2, getEndColumn, getEndLine, getExecType, getFilename, getForcedExecType, getHopID, getInput, getInput, getInputMemEstimate, getInputOutputSize, getIntermediateMemEstimate, getLength, getLops, getMemEstimate, getName, getNnz, getOutputMemEstimate, getParent, getPrivacy, getSparsity, getSpBroadcastSize, getText, getUpdateType, getValueType, hasFederatedOutput, hasMatrixInputWithDifferentBlocksizes, hasValidCPDimsAndSize, isFederated, isFederatedOutput, 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, setRequiresDeCompression, setRequiresLineageCaching, setRequiresReblock, setRequiresRecompile, setText, setUpdateType, setValueType, setVisited, setVisited, toString`

    - ### Methods inherited from class java.lang.Object

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

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

      `ctxAndFilenameToParseInfo`

- - ### Field Detail

    - #### APPEND_MEM_MULTIPLIER

          public static final double APPEND_MEM_MULTIPLIER

      See Also:
        Constant Field Values

    - #### FORCED_APPEND_METHOD

          public static BinaryOp.AppendMethod FORCED_APPEND_METHOD

    - #### FORCED_BINARY_METHOD

          public static BinaryOp.MMBinaryMethod FORCED_BINARY_METHOD

  - ### Constructor Detail

    - #### BinaryOp

          public BinaryOp(String l,
                          Types.DataType dt,
                          Types.ValueType vt,
                          Types.OpOp2 o,
                          Hop inp1,
                          Hop inp2)

  - ### Method Detail

    - #### checkArity

          public void checkArity()

      Description copied from class: `Hop`
      Check whether this Hop has a correct number of inputs. (Some Hops can have a variable number of inputs, such as DataOp, DataGenOp, ParameterizedBuiltinOp, ReorgOp, TernaryOp, QuaternaryOp, MultipleOp, DnnOp, and SpoofFusedOp.) Parameterized Hops (such as DataOp) can check that the number of parameters matches the number of inputs.
      Specified by:
        `checkArity` in class `Hop`

    - #### getOp

          public Types.OpOp2 getOp()

    - #### setOp

          public void setOp(Types.OpOp2 iop)

    - #### setOuterVectorOperation

          public void setOuterVectorOperation(boolean flag)

    - #### isOuter

          public boolean isOuter()

    - #### 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`

    - #### getOpString

          public String getOpString()

      Specified by:
        `getOpString` in class `Hop`

    - #### allowsAllExecTypes

          public boolean allowsAllExecTypes()

      Specified by:
        `allowsAllExecTypes` in class `Hop`

    - #### constructSPAppendLop

          public static Lop constructSPAppendLop(Hop left,
                                                 Hop right,
                                                 Types.DataType dt,
                                                 Types.ValueType vt,
                                                 boolean cbind,
                                                 Hop current)

    - #### footprintInMapper

          public static double footprintInMapper(long m1_dim1,
                                                 long m1_dim2,
                                                 long m2_dim1,
                                                 long m2_dim2,
                                                 long m1_rpb,
                                                 long m1_cpb)

      Estimates the memory footprint of MapMult operation depending on which input is put into distributed cache. This function is called by `optFindAppendMethod()` to decide the execution strategy, as well as by piggybacking to decide the number of Map-side instructions to put into a single GMR job.
      Parameters:
        `m1_dim1` - ?
        `m1_dim2` - ?
        `m2_dim1` - ?
        `m2_dim2` - ?
        `m1_rpb` - ?
        `m1_cpb` - ?
      Returns:
        memory footprint estimate

    - #### requiresReplication

          public static boolean requiresReplication(Hop left,
                                                    Hop right)

    - #### 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`

    - #### supportsMatrixScalarOperations

          public boolean supportsMatrixScalarOperations()

    - #### isPPredOperation

          public boolean isPPredOperation()

    - #### getComplementPPredOperation

          public Types.OpOp2 getComplementPPredOperation()

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