Class Tensor

Represents data in a multidimensional array-like structure.

Inheritance
Object
Tensor
TensorFloat
TensorInt
Inherited Members
Object.Equals(Object)
Object.Equals(Object, Object)
Object.ReferenceEquals(Object, Object)
Object.GetHashCode()
Object.GetType()
Namespace: Unity.Sentis
Syntax
public abstract class Tensor : IDisposable

Constructors

Tensor(TensorShape, ITensorData, ITensorAllocator)

Create a Tensor with the specified shape, an ITensorData data and an ITensorAllocator allocator.

Declaration
protected Tensor(TensorShape shape, ITensorData data = null, ITensorAllocator allocator = null)
Parameters
Type Name Description
TensorShape shape
ITensorData data
ITensorAllocator allocator

Fields

m_Disposed

Declaration
protected bool m_Disposed
Field Value
Type Description
Boolean

m_Shape

Declaration
protected TensorShape m_Shape
Field Value
Type Description
TensorShape

m_TensorAllocator

Declaration
protected ITensorAllocator m_TensorAllocator
Field Value
Type Description
ITensorAllocator

m_TensorOnDevice

Declaration
protected ITensorData m_TensorOnDevice
Field Value
Type Description
ITensorData

Properties

allocator

The allocator for the tensor. Refer to ITensorAllocator.

Declaration
public ITensorAllocator allocator { get; }
Property Value
Type Description
ITensorAllocator

dataType

The data type of the elements of the tensor.

Declaration
public abstract DataType dataType { get; }
Property Value
Type Description
DataType

shape

The shape of the tensor, as a TensorShape.

Declaration
public TensorShape shape { get; protected set; }
Property Value
Type Description
TensorShape

tensorOnDevice

The device-specific internal representation of the tensor data.

Declaration
public ITensorData tensorOnDevice { get; protected set; }
Property Value
Type Description
ITensorData

Methods

AsyncReadbackRequest(Action<Boolean>)

Schedules asynchronous download of the internal data.

Invokes callback when async readback is finished.

Boolean indicates if async readback is successful.

Declaration
public void AsyncReadbackRequest(Action<bool> callback = null)
Parameters
Type Name Description
Action<Boolean> callback

AttachToDevice(ITensorData)

Associates a tensor with the block of data on a device. Sentis downloads from source on first access.

Make sure source contains initialized and valid data that represents tensor values.

Declaration
public void AttachToDevice(ITensorData source)
Parameters
Type Name Description
ITensorData source

CompleteAllPendingOperations()

Declaration
public void CompleteAllPendingOperations()

DeepCopy()

Returns a deep copy of the current Tensor.

Declaration
public abstract Tensor DeepCopy()
Returns
Type Description
Tensor

DetachFromDevice(Boolean)

Synchronizes the tensor data with the data on the device, then remove the tensor from the device.

Declaration
public ITensorData DetachFromDevice(bool disposeDeviceData = true)
Parameters
Type Name Description
Boolean disposeDeviceData
Returns
Type Description
ITensorData

Dispose()

Disposes of the tensor and any associated memory.

Declaration
public virtual void Dispose()
Implements

Finalize()

Dispose of the tensor and any associated memory.

Declaration
protected void Finalize()

IsAsyncReadbackRequestDone()

Checks if asynchronous readback request it done.

Returns true if async readback is successful.

Declaration
public bool IsAsyncReadbackRequestDone()
Returns
Type Description
Boolean

MakeReadable()

Blocking call to make tensor data read write.

Issues a blocking download of the internal data. And converts tensorData to ArrayTensorData

Declaration
public void MakeReadable()

PinToDevice(ITensorData, Boolean)

Declaration
protected void PinToDevice(ITensorData onDevice, bool disposeUnpinned = true)
Parameters
Type Name Description
ITensorData onDevice
Boolean disposeUnpinned

ShallowCopy()

Returns a shallow copy of the current Tensor. The copy shares data storage with original tensor.

Declaration
public Tensor ShallowCopy()
Returns
Type Description
Tensor

ShallowReshape(TensorShape)

Returns a shallow copy of the Tensor with a new shape. The copy shares data storage with the original tensor.

newShape.length must be equal to this.shape.length.

Declaration
public abstract Tensor ShallowReshape(TensorShape newShape)
Parameters
Type Name Description
TensorShape newShape
Returns
Type Description
Tensor

TakeOwnership()

Removes system references to the tensor. The caller assumes ownership.

Declaration
public void TakeOwnership()

ToString()

Returns a string that represents the Tensor.

Declaration
public override string ToString()
Returns
Type Description
String
Overrides

UploadToDevice(ITensorData)

Declaration
public abstract void UploadToDevice(ITensorData destination)
Parameters
Type Name Description
ITensorData destination

Extension Methods