How can I do this multiplication?
Let´s assume two tensors:
x= torch.ones(9,9)
y= torch.randn(3,3)

x can be be imagined as a tensor of 9 blocks or sub-matrices, each of size (3,3).
I want to do elementwise multiplication of each block of (3,3) with y, so that the resultant tensor would have size same as x.
This task is analogous to convolution operation, where x and y can be assumed as input and filter respectively and stride=3, but output size should be same as input!