Strange fact. I've been trying to train summarization with default parameters and default dataset.

It turns out that the GPU is detected (2017-06-01 17:57:05.548650: I tensorflow/core/common_runtime/gpu/gpu_device.cc:977] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX 1080, pci bus id: 0000:01:00.0)), some GPU memory is alocated for the process, but nothing is running on it (load: 0%). It sometimes peak at around 27% for very short time.

The GPU is a single 1080 with 8G RAM (4617MiB allocated by the process)

Any idea?