torch.numel — PyTorch 2.7 documentation (original) (raw)

torch.numel(input: Tensor) → int¶

Returns the total number of elements in the input tensor.

Parameters

input (Tensor) – the input tensor.

Example:

a = torch.randn(1, 2, 3, 4, 5) torch.numel(a) 120 a = torch.zeros(4,4) torch.numel(a) 16