比较与torch.Tensor.t的功能差异

torch.Tensor.t

torch.Tensor.t(input)

更多内容详见torch.Tensor.t。

mindspore.ops.Transpose

class mindspore.ops.Transpose(*args, **kwargs)(
    input_x,
    input_perm
)

更多内容详见mindspore.ops.Transpose。

使用方式

PyTorch：仅适用于1维和2维的输入。

MindSpore：输入的维度不限，且需要通过参数设置转置方式。

代码示例

import mindspore
from mindspore import Tensor
import mindspore.ops as ops
import torch
import numpy as np

# In MindSpore, the input tensor will be transposed based on the dimension you set.
input_tensor = Tensor(np.array([[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]]), mindspore.float32)
perm = (0, 2, 1)
transpose = ops.Transpose()
output = transpose(input_tensor, perm)
print(output.shape)
# Out：
# (2, 3, 2)

# In torch, only input of 2D dimension or lower will be accepted.
input1 = torch.randn(())
input2 = torch.randn((2, 3))
input3 = torch.randn((2, 3, 4))
for n, x in enumerate([input1, input2, input3]):
    try:
        output = torch.t(x)
        print(output.shape)
    except Exception as e:
        print('ERROR when inputting {}D: '.format(n + 1) + str(e))
# Out：
# torch.Size([])
# torch.Size([3, 2])
# ERROR when inputting 3D: t() expects a tensor with <=2 dimensions, but self is 3D.