Do-It-Yourself GPU Cluster

Not sure if it is worth the time & money to build ones own GPU cluster, but here are some very useful links to go about it:

1. Nvidia's Pascal architecture NVLink for GPU-GPU Communication
2. Tim Dettmer's Deep learning Hardware Guide
   Must read since he has built his own machine to win Kaggle competitions
3. Tim Dettmer's Which GPU for Deep Learning?
4. Tim Dettmer's How to build & use a multi-GPU system for Deep learning?