[DNN] Train/Test Error = nan when using ReLU

[a.bragagnolo]

Hi Omar,
I’m using ROOT 6.10/08* on Ubuntu 16.04 LTS

*with this(**) hotfix

(**) https://root-forum.cern.ch/t/trouble-compiling-root-with-cuda-support-for-tmva/25900/7

I get this when I try to run the expample I gave you