New IBM reference architecture for GPU

[rachel2]

http://blogs.citrix.com/2014/05/22/ibm-reference-architecture-for-citrix-xendesktop-and-nvidia-grid-vgpu-plus-real-customer-case-studies-of-vgpu-in-deployment-for-graphical-workloads-on-ibm-servers-announced-at-citrix-synergy/