Theano/Theano — pull request #2117 by abergeron (2014-09-17 19:49:56+00:00)
Title: Add support for subsampling and gradient to GpuDnnConv

This adds a grad() method to GpuDnnConv and adds support for subsampling. It also allows choosing between convolution and cross-correlation mode (however cross-correlation mode has not been tested).

I've also made a base class that create the cudnn handle to make other ops easier to write.