nothing in update!

[denizyuret]

I got:

julia> Morse.main(split("--dataSet TRDataSet --version 2006 --epochs 1 --lemma --dropouts 0.3 --patience 6"))
ERROR: MethodError: update!(::Knet.KnetArray{Float32,3}, ::Nothing, ::Knet.SGD) is ambiguous. Candidates:                            
  update!(w::Knet.KnetArray{Float32,N} where N, g, p::Knet.SGD) in Knet at /kuacc/users/dyuret/.julia/dev/Knet/src/update.jl:475     
  update!(w::Knet.KnetArray{Float32,N} where N, g::Nothing, p) in Knet at /kuacc/users/dyuret/.julia/dev/Knet/src/update.jl:547      
Possible fix, define                                                                                                                 
  update!(::Knet.KnetArray{Float32,N} where N, ::Nothing, ::Knet.SGD)                                                                

which I worked around by defining:

Knet.update!(w::KnetArray{Float32}, ::Nothing, ::Knet.SGD) = w

We can open an issue to Knet about this later. But here my question is: are we expecting nothing gradients in normal operation or is this pointing to a bug?

[denizyuret]

@ekinakyurek is this behavior normal?

[ekinakyurek]

no, it never happened. This is a problem.In which experiment it happens?

[denizyuret]

I gave the command line.

…

On Mon, Oct 28, 2019 at 4:45 PM Ekin Akyürek ***@***.***> wrote: no, it never happened. This is a problem.In which experiment it happens? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5?email_source=notifications&email_token=AAN43JXFVKIPJO5TJA6VHJLQQ3UITA5CNFSM4JDMJSJ2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOECM5NSI#issuecomment-546952905>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAN43JTY5V6SRP5UD7AZHJ3QQ3UITANCNFSM4JDMJSJQ> .