DockerFile with nccl

[mingruimingrui]

Hi all, I was wondering if you guys have a sample DockerFile with CUDA, CUDNN and NCCL?
Would be really helpful for pushing things to production! Thanks!

[fmassa]

We don't have a docker image, but maybe you could take the official PyTorch docker image from https://github.com/pytorch/pytorch#docker-image and adapt it to install maskrcnn-benchmark?

[mingruimingrui]

@fmassa Thanks! I actually found what I was looking for. Apparently nccl and even cudnn can be installed using apt get! https://github.com/uber/horovod/blob/master/Dockerfile

[mingruimingrui]

I'll be closing this issue now.

[fmassa]

Also note that there is a open PR which adds a Dockerfile for mask RCNN benchmark, see #78