Create and modify tensors

Tensor methods in Sentis are similar to methods in frameworks like numpy, TensorFlow, and PyTorch.

Create a basic tensor

Create a basic tensor using the methods in the TensorFloat or TensorInt APIs. For example use TensorFloat.Zeros to create a tensor filled with 0.

Refer to Create input for a model for more information.

Reshape a tensor

You can't change the shape of a tensor, but you can use ShallowReshape to create a reshaped copy of a tensor.

For example:

// Create a 2 × 2 × 2 tensor
TensorShape shape = new TensorShape(2, 2, 2);
int[] data = new int[] { 1, 2, 3, 4, 10, 20, 30, 40 };
TensorInt tensor = new TensorInt(shape, data);

// Create a copy of the tensor with the new shape 2 × 1 × 4
TensorShape newShape = new TensorShape(2, 1, 4);
Tensor reshapedTensor = tensor.ShallowReshape(newShape);

The shape of the tensor and the new shape must have the same number of elements. You can use the length property of a tensor to check the number of elements.

The result of ShallowReshape is a shallow copy that points to the same memory as the original output.

Don't use ShallowReshapeif you use BackendType.GPUPixel, because ShallowReshape isn't compatible with the way Sentis stores tensor data in textures.

Additional resources