Hello,
Conv2d(256, 256, kernel_size=(3, 3), padding=(1, 1), groups=4, bias=False)
is almost twice slower (in a sequence of similar calls) than:
Conv2d(128, 128, kernel_size=(3, 3), padding=(1, 1), groups=1, bias=False)
while the number of operations is about the same. Is there a way to do any better? Is there a chance that in a near future a more efficient implementation than a naive loop becomes available?
Best regards,
Georges Quénot.