Comments (3)
I see this issue has also been reported in #101. This is big impairment for me, because I use a lot of complicated custom operators in my research code. @denizyuret do you have a solution for this or any hint on the problem (what's wrong in the broadcasting pipeline)?
from autograd.jl.
The problem is I haven't figured out how to define gradients for arbitrary broadcast operations for AutoGrad or Knet. For primitives (e.g. sin/cos), I define both the scalar and broadcasted gradients with the @primitive macro in AutoGrad and call specific kernels for KnetArray. @ekinakyurek thinks this used to work in Julia 0.6 but we need to figure out how to make it work in Julia 1.0.
from autograd.jl.
Solved in latest master, submitted in v1.1.2.
from autograd.jl.
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from autograd.jl.