Class CudaEvent

Wrapps a CUevent handle.

Inheritance
System.Object
CudaEvent
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: ManagedCuda
Assembly: ManagedCuda.dll
Syntax
public class CudaEvent : IDisposable

Constructors

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CudaEvent()

Creates a new Event using Default

Declaration
public CudaEvent()
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CudaEvent(CUEventFlags)

Creates a new Event

Declaration
public CudaEvent(CUEventFlags flags)
Parameters
Type Name Description
CUEventFlags flags

Parameters for event creation

Properties

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Event

returns the wrapped CUevent handle

Declaration
public CUevent Event { get; set; }
Property Value
Type Description
CUevent

Methods

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Dispose()

Dispose

Declaration
public void Dispose()
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Dispose(Boolean)

For IDisposable

Declaration
protected virtual void Dispose(bool fDisposing)
Parameters
Type Name Description
System.Boolean fDisposing
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ElapsedTime(CudaEvent, CudaEvent)

Computes the elapsed time between two events (in milliseconds with a resolution of around 0.5 microseconds). If either event has not been recorded yet, this function throws ErrorNotReady. If either event has been recorded with a non-zero stream, the result is undefined.

Declaration
public static float ElapsedTime(CudaEvent eventStart, CudaEvent eventEnd)
Parameters
Type Name Description
CudaEvent eventStart
CudaEvent eventEnd
Returns
Type Description
System.Single
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Finalize()

For dispose

Declaration
protected void Finalize()
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Query()

Returns true if the event has actually been recorded, or false if not. If Record() has not been called on this event, the function throws ErrorInvalidValue.

Declaration
public bool Query()
Returns
Type Description
System.Boolean
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Record()

Records an event. If stream is non-zero, the event is recorded after all preceding operations in the stream have been completed; otherwise, it is recorded after all preceding operations in the CUDA context have been completed. Since operation is asynchronous, Query() and/or Synchronize() must be used to determine when the event has actually been recorded.

If Record() has previously been called and the event has not been recorded yet, this function throws ErrorInvalidValue.

Declaration
public void Record()
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Record(CUstream)

Records an event. If stream is non-zero, the event is recorded after all preceding operations in the stream have been completed; otherwise, it is recorded after all preceding operations in the CUDA context have been completed. Since operation is asynchronous, Query() and/or Synchronize() must be used to determine when the event has actually been recorded.

If Record() has previously been called and the event has not been recorded yet, this function throws ErrorInvalidValue.

Declaration
public void Record(CUstream stream)
Parameters
Type Name Description
CUstream stream
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Synchronize()

Waits until the event has actually been recorded. If Record() has been called on this event, the function returns ErrorInvalidValue. Waiting for an event that was created with the BlockingSync flag will cause the calling CPU thread to block until the event has actually been recorded.

If Record() has previously been called and the event has not been recorded yet, this function throws ErrorInvalidValue.

Declaration
public void Synchronize()

Implements

System.IDisposable