Evaluate performance on AWS EC2

[achimnol]

Evaluate NBA's performance on multi-tenant cloud environments: Amazon EC2.
Intel DPDK has two types of EC2-releated poll-mode drivers:

• ixgbevf for SR-IOV-enabled instances
• ena for the new ENA interfaces

Additionally, it would be more interesting to try CUDA-enabled instances (e.g., g2 family) with GPU acceleration. In this case, you may need to change/update Snakefile and PCI device IDs in *_DEVICES files to detect the grid-version of NVIDIA GPUs correctly and compile the CUDA sources using the correct compute capability versions.

NOTE: You may need to attach a secondary back-up ENI to protect access to your instances because the OS network stack looses SSH connections when DPDK takes the control of primary NIC via ixgbevf-pmd.