How to make tensordot operations after permutation
I have 2 tensors, A and B:
A = torch.randn([32,128,64,12],dtype=torch.float64)
B = torch.randn([64,12,64,12],dtype=torch.float64)
C = torch.tensordot(A,B,([2,3],[0,1]))
D = C.permute(0,2,1,3) # shape:[32,64,128,12]

tensor D comes from the operations &quot;tensordot -&gt; permute&quot;. How can I implement a new operation f() to make the tensordot operation after f() like:
A_2 = f(A)
B_2 = f(B)
D = torch.tensordot(A_2,B_2)


Have you considered using torch.einsum which is very flexible?
D = torch.einsum('ijab,abkl-&gt;ikjl', A, B)

The problem with tensordot is that it outputs all dimensions of A before those of B and what you are looking for (when permuting) is to &quot;interleave&quot; dimensions from A and B.
