Was wondering if there is a way to check tensor_a.is_view_of(tensor_b).
parent = torch.arange(4 * 5).view(4, 5)
child1 = parent[[0, 1]]
child2 = parent[:2]
child3 = parent[2:]

child2 and child3 are views of parent because of the slice-style indexing, while child1 is detached. I tried child2.data_ptr() == parent.data_ptr() and this correctly determines that child2 shares memory with parent, but will not work for child3 because of the memory offset (maybe with some pointer arithmetic).