[Kaldi-developers] dnn-cpu train issue

[Ben J. <be...@ne...>]

Hi all,

While hunting some random error from nnet-train-parallel, I noticed the
nnet_to_update is shared among the threads, but there is no synchronization
checks when updating the components in the threads.  I still haven't gone
too deep in the code yet, but should there be synchronization checks?

For example, the deriv variable in NnetUpdater::Backprop() is updated and
passed between the components.  Could this be an issue if the components
are being updated by other threads?


Or am I missing something totally?


--
Thanks
Ben