I have added a node to my cluster with the following specs:

• Gigabyte GA-970A-DS3P Motherboard
• 1 x AMD FX-6300 6-Core Processor
• SAPPHIRE NITRO+ Radeon™ RX 570 8GB - 1244MHz
• 16GB DDR3 Memory
• 1 x 128GB SSD

Since this node is more powerful than the others of the cluster, I will likely use it as the master node in any master/slave type algorithms for my parallel programming projects, and use it as the proxy node/Keystone authorization service node in my OpenStack Swift object storage cloud.