# Imitation Learning with Horovod and Open MPI HPC Libraries

## post by william_schram on Feb 19, 2019

I’m attempting to run the imitation learning library [Atari-Reset](https://github.com/openai/atari-reset) from openai on Github.

This repo requires installation of [Horovod on GPU](https://github.com/horovod/horovod/blob/master/docs/gpus.md) and Cuda-aware Open MPI. Would it be possible for you to write a installation guide for this stack? It gets confusing when Open MPI asks for the locations of the ucx-cuda and cuda locations (See ‘Building CUDA-aware Open MPI’).

I have been able to install the libraries with CPU support, but I want to get the GPU compute power of my Lambda Quad.

## post by sabalaba on Feb 20, 2019

Hi William, I’ll let the team that develops Lambda Stack know that you’d like CUDA aware Open MPI / Horovod integrated into Lambda Stack.

## post by william_schram on Feb 20, 2019

That would be an even better outcome! These tools are particularly valuable to your customers who are looking at clusters of Lambda machines for reinforcement / imitation learning tasks. I look forward to future updates to the Lambda Stack.

## post by geppy on Mar 17, 2019

Hi,

Do you have an ETA for this implementation? Thank you.

Geppy

## post by william_schram on Apr 11, 2019

Ditto, looking to see a formal timeline communicated.

## post by william_schram on Oct 15, 2019

Has there been any discussion on the timeline to implement this request to Lambda stack? Or reach out to the open source developers at Uber?