one less loop
@@ -163,10 +163,9 @@ class Conv2D(Function):
for X in range(ret.shape[3]):
for j in range(H):
for i in range(W):
- for c in range(cout):
tx = x[:, :, Y+j, X+i]
- tw = w[c, :, j, i]
- ret[:, c, Y, X] += tx.dot(tw.reshape(-1, 1)).reshape(-1)
+ tw = w[:, :, j, i]
+ ret[:, :, Y, X] += tx.dot(tw.T)
return ret
@staticmethod
