Access to inner control of Solve() loop

[beniz]

Access to the solver's Solve() function inner loop is of interest to third party software and clients of libcaffe. One obvious basic use-case is the tracking of the current model loss during training.

What would be the best practice for providing access to the inner loop ? I've looked at past issues and PR and it seems there was an effort to bring a custom callback into the loop (see #738), that appears to have eventually aborted.

The inner loop is very simple, which is good, and thus for my current use case, I do simply turn Solver's protected variables into public ones in solver.hpp, and rewrite a tiny loop outside of libcaffe. As ugly as it is, it remains a very minimal change ;)

How to best help you clear this issue if you believe it is relevant to others, as it is relevant to me ?

Thanks!

EDIT: another use-case is the ability to kill a training job, and this is better done from the inner loop.

[jyegerlehner]

You could merge in PR 1228 which might be what you are looking for.

[beniz]

@jyegerlehner thank you, this should do. I believe I had seen it but was unable to find it again. closing.