WebApr 13, 2024 · 其中 gather有两种使用方式,一种为 ... 1.torch.expand 函数返回张量在某一个维度扩展之后的张量,就是将张量广播到新形状。函数对返回的张量不会分配新内存,即在原始张量上返回只读视图,返回的张量内存是不连续的。 ... (x, y), dim=) # 输出连接后的 tensor print(z ... Webtorch.Tensor.scatter_. Writes all values from the tensor src into self at the indices specified in the index tensor. For each value in src, its output index is specified by its index in src …
Operation Semantics XLA TensorFlow
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Understanding indexing with pytorch gather by Mateusz …
WebMar 16, 2024 · Hi, I am trying to permute the feature map dimension in a tensor. As a very simplified case, If I have a tensor of size (5, 4, 3, 6) I want to rearrange the above tensor along its dimension 1 (i.e. 4) from 0,1,2,3 to 0,2,1,3 One possible way I found was to do a index_select followed by cat. But, in case of a larger tensor, a lot of intermediate tensors … Webtorch.Tensor.scatter_. Writes all values from the tensor src into self at the indices specified in the index tensor. For each value in src, its output index is specified by its index in src for dimension != dim and by the corresponding value in index for dimension = dim. This is the reverse operation of the manner described in gather (). WebTensorDict¶ class tensordict. TensorDict (* args: Any, ** kwargs: Any) ¶. A batched dictionary of tensors. TensorDict is a tensor container where all tensors are stored in a key-value pair fashion and where each element shares at least the following features: - memory location (shared, memory-mapped array, …); - batch size (i.e. n^th first dimensions). small business loan banks