Package org.apache.sysds.runtime.matrix.operators

Class BinaryOperator

java.lang.Object
org.apache.sysds.runtime.matrix.operators.Operator
org.apache.sysds.runtime.matrix.operators.MultiThreadedOperator
org.apache.sysds.runtime.matrix.operators.BinaryOperator
All Implemented Interfaces:
Serializable
public class BinaryOperator extends MultiThreadedOperator
BinaryOperator class for operations that have two inputs. For instance 
BinaryOperator op = new BinaryOperator(Plus.getPlusFnObject());
double r = op.execute(5.0, 8.2)
See Also:

  • Field Details

    • fn

      public final ValueFunction fn

    • commutative

      public final boolean commutative

  • Constructor Details

  • Method Details

    • getBinaryOperatorOpOp2

      public Types.OpOp2 getBinaryOperatorOpOp2()
      Method for getting the hop binary operator type for a given function object. This is used in order to use a common code path for consistency between compiler and runtime.
      Returns:
      binary operator type for a function object

    • isCommutative

      public boolean isCommutative()

    • isRowSafeLeft

      public boolean isRowSafeLeft(double[] row)
      Check if the operation returns zeros if the input zero.
      Parameters:
      row - The values to check
      Returns:
      If the output is always zero if other value is zero

    • isRowSafeLeft

      public boolean isRowSafeLeft(MatrixBlock row)
      Check if the operation returns zeros if the input zero.
      Parameters:
      row - The values to check
      Returns:
      If the output is always zero if other value is zero

    • isIntroducingZerosLeft

      public boolean isIntroducingZerosLeft(MatrixBlock row)
      Check if the operation returns zeros if the input is contained in row.
      Parameters:
      row - The values to check
      Returns:
      If the output contains zeros

    • isIntroducingZerosLeft

      public boolean isIntroducingZerosLeft(double[] row)
      Check if the operation returns zeros if the input is contained in row.
      Parameters:
      row - The values to check
      Returns:
      If the output contains zeros

    • isRowSafeRight

      public boolean isRowSafeRight(double[] row)
      Check if the operation returns zeros if the input zero.
      Parameters:
      row - The values to check
      Returns:
      If the output is always zero if other value is zero

    • isRowSafeRight

      public boolean isRowSafeRight(MatrixBlock row)
      Check if the operation returns zeros if the input zero.
      Parameters:
      row - The values to check
      Returns:
      If the output is always zero if other value is zero

    • isIntroducingZerosRight

      public boolean isIntroducingZerosRight(MatrixBlock row)
      Check if the operation returns zeros if the input is contained in row.
      Parameters:
      row - The values to check
      Returns:
      If the output contains zeros

    • isIntroducingZerosRight

      public boolean isIntroducingZerosRight(double[] row)
      Check if the operation returns zeros if the input is contained in row.
      Parameters:
      row - The values to check
      Returns:
      If the output contains zeros

    • toString

      public String toString()
      Overrides:
      toString in class Object