Hello,

I was wondering what the fastest way to compute the following is :

Suppose two vectors (v1,v2) of dim (bs,n,c), (bs,m,c):

```
matrix = torch.zeros((bs,n,m))
For i in range(n):
For j in range(m):
matrix[:,i,j] = foo(v1[:,i,:],v2[:,j:,])
```

Thank you in advance