Extending Theano: FAQ and Troubleshooting

I wrote a new Op/Type, and weird stuff is happening...

First, check the Op’s contract and the Type’s contract and make sure you’re following the rules. Then try running your program in Using DebugMode. DebugMode might catch something that you’re not seeing.

I wrote a new optimization, but it’s not getting used...

Remember that you have to register optimizations with the The optimization database (optdb) for them to get used by the normal modes like FAST_COMPILE, FAST_RUN, and DebugMode.

I wrote a new optimization, and it changed my results even though I’m pretty sure it is correct.

First, check the Op’s contract and make sure you’re following the rules. Then try running your program in Using DebugMode. DebugMode might catch something that you’re not seeing.