Using Keras & Tensorflow with AMD GPU

Question

I\'m starting to learn Keras, which I believe is a layer on top of Tensorflow and Theano. However, I only have access to AMD GPUs such as the AMD R9 280X.

How can I

Answer 1

Theano does have support for OpenCL but it is still in its early stages. Theano itself is not interested in OpenCL and relies on community support.

Most of the operations are already implemented and it is mostly a matter of tuning and optimizing the given operations.

To use the OpenCL backend you have to build libgpuarray yourself.

From personal experience I can tell you that you will get CPU performance if you are lucky. The memory allocation seems to be very naively implemented (therefore computation will be slow) and will crash when it runs out of memory. But I encourage you to try and maybe even optimize the code or help reporting bugs.