randint

Documentation

treetensor.torch.randint(*args, **kwargs)[source]

In treetensor, you can use randint to create a tree of tensors with numbers in an integer range.

Examples:

>>> import torch
>>> import treetensor.torch as ttorch
>>> ttorch.randint(10, (2, 3))  # the same as torch.randint(10, (2, 3))
tensor([[3, 4, 5],
        [4, 5, 5]])

>>> ttorch.randint(10, {'a': (2, 3), 'b': {'x': (4, )}})
<Tensor 0x7ff363bb6438>
├── a --> tensor([[5, 3, 7],
│                 [8, 1, 8]])
└── b --> <Tensor 0x7ff363bb6240>
    └── x --> tensor([8, 8, 2, 4])

Torch Version Related

This documentation is based on torch.randint in torch v1.10.0+cu102. Its arguments’ arrangements depend on the version of pytorch you installed.

If some arguments listed here are not working properly, please check your pytorch’s version with the following command and find its documentation.

1
python -c 'import torch;print(torch.__version__)'

The arguments and keyword arguments supported in torch v1.10.0+cu102 is listed below.

Description From Torch v1.10.0+cu102

torch.randint(low=0, high, size, \*, generator=None, out=None, dtype=None, layout=torch.strided, device=None, requires_grad=False) → Tensor

Returns a tensor filled with random integers generated uniformly between low (inclusive) and high (exclusive).

The shape of the tensor is defined by the variable argument size.

Note

With the global dtype default (torch.float32), this function returns a tensor with dtype torch.int64.

Args:

low (int, optional): Lowest integer to be drawn from the distribution. Default: 0. high (int): One above the highest integer to be drawn from the distribution. size (tuple): a tuple defining the shape of the output tensor.

Keyword args:

generator (torch.Generator, optional): a pseudorandom number generator for sampling out (Tensor, optional): the output tensor. dtype (torch.dtype, optional) - the desired data type of returned tensor. Default: if None,

this function returns a tensor with dtype torch.int64.

layout (torch.layout, optional): the desired layout of returned Tensor.

Default: torch.strided.

device (torch.device, optional): the desired device of returned tensor.

Default: if None, uses the current device for the default tensor type (see torch.set_default_tensor_type()). device will be the CPU for CPU tensor types and the current CUDA device for CUDA tensor types.

requires_grad (bool, optional): If autograd should record operations on the

returned tensor. Default: False.

Example:

>>> torch.randint(3, 5, (3,))
tensor([4, 3, 4])


>>> torch.randint(10, (2, 2))
tensor([[0, 2],
        [5, 5]])


>>> torch.randint(3, 10, (2, 2))
tensor([[4, 5],
        [6, 7]])