Packages

trait GpuDataProducer[T] extends AutoCloseable

A GpuDataProducer produces data on the GPU. That data typically comes from other resources also held on the GPU that cannot be released until the iterator is closed and cannot be made spillable. This behaves like an Iterator but is not an Iterator because this cannot be used in place of an Iterator, especially in the context of an RDD where it would violate the semantics of the GpuSemaphore. Generally the lifetime of this should be entirely while the GpuSemaphore is held. It is "generally" because there are a few cases where for performance reasons if we know that no data is going to be produced, then we might not grab the semaphore at all.

T

what it is that we are wrapping

Linear Supertypes
AutoCloseable, AnyRef, Any
Known Subclasses
EmptyGpuDataProducer, EmptyTableReader, OrcTableReader, ParquetTableReader, SingleGpuDataProducer, WrappedGpuDataProducer
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Abstract Value Members

  1. abstract def close(): Unit
    Definition Classes
    AutoCloseable
    Annotations
    @throws( classOf[java.lang.Exception] )
  2. abstract def hasNext: Boolean

    Returns true if there is more data to be read or false if there is not.

  3. abstract def next: T

    if hasNext returned true return the data.

    if hasNext returned true return the data. The reader is responsible for closing the returned value if it needs to be closed. If there is no more data to be read then an instance of NotSuchElementException should be thrown.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
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  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
    Definition Classes
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  8. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  9. def foreach[U](func: (T) ⇒ U): Unit

    Just like foreach on an Iterator

  10. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def hashCode(): Int
    Definition Classes
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    @native()
  12. final def isInstanceOf[T0]: Boolean
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  13. final def ne(arg0: AnyRef): Boolean
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  14. final def notify(): Unit
    Definition Classes
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    @native()
  15. final def notifyAll(): Unit
    Definition Classes
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    @native()
  16. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  17. def toString(): String
    Definition Classes
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  18. final def wait(): Unit
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    @throws( ... )
  19. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  20. final def wait(arg0: Long): Unit
    Definition Classes
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    @throws( ... ) @native()

Inherited from AutoCloseable

Inherited from AnyRef

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