Firsty,thanks to your explain!I understand "



 ptrblck:

c = torch.cat((a, b), dim=1)


"

the size of x:64x24x7x7
the size of  the second out:64x12x7x7
so,the size is different in dimension 1
I think is right.
Now,
捕获.PNG1029×652 34.4 KB

error is different,I would not fix the error,Could you help me?