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com.nvidia.spark.rapids

GpuSemaphore

object GpuSemaphore

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. def acquireIfNecessary(context: TaskContext): Unit

    Tasks must call this when they begin to use the GPU.

    Tasks must call this when they begin to use the GPU. If the task has not already acquired the GPU semaphore then it is acquired, blocking if necessary. NOTE: A task completion listener will automatically be installed to ensure the semaphore is always released by the time the task completes.

  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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    @throws( ... ) @native()
  7. def computeNumPermits(conf: SQLConf): Int
  8. def dumpActiveStackTracesToLog(): Unit

    Dumps the stack traces for any tasks that have accessed the GPU semaphore and have not completed.

    Dumps the stack traces for any tasks that have accessed the GPU semaphore and have not completed. The output includes whether the task has the GPU semaphore held at the time of the stack trace.

  9. final def eq(arg0: AnyRef): Boolean
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  10. def equals(arg0: Any): Boolean
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  11. def finalize(): Unit
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    @throws( classOf[java.lang.Throwable] )
  12. final def getClass(): Class[_]
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    @native()
  13. def hashCode(): Int
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    @native()
  14. def initialize(): Unit

    Initializes the GPU task semaphore.

  15. final def isInstanceOf[T0]: Boolean
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  16. final def ne(arg0: AnyRef): Boolean
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  17. final def notify(): Unit
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  18. final def notifyAll(): Unit
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    @native()
  19. def releaseIfNecessary(context: TaskContext): Unit

    Tasks must call this when they are finished using the GPU.

  20. def shutdown(): Unit

    Uninitialize the GPU semaphore.

    Uninitialize the GPU semaphore. NOTE: This does not wait for active tasks to release!

  21. final def synchronized[T0](arg0: ⇒ T0): T0
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  22. def toString(): String
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  23. def tryAcquire(context: TaskContext): TryAcquireResult

    A thread may try to acquire the semaphore without blocking on it.

    A thread may try to acquire the semaphore without blocking on it. NOTE: A task completion listener will automatically be installed to ensure the semaphore is always released by the time the task completes.

  24. final def wait(): Unit
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    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit
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  26. final def wait(arg0: Long): Unit
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