CUDA (Compute Unified Device Architecture) is a parallel computing platform and programming model created by NVIDIA. It can be used to increase computing performance by leveraging the Graphics Processing Units (GPUs).

For more information, see NVIDIAs website: https://developer.nvidia.com/cuda-zone

xCAT supports CUDA installation for Ubuntu 14.04.3 and RHEL 7.5 on PowerNV (Non-Virtualized) for both diskful and diskless nodes.

Within the NVIDIA CUDA Toolkit, installing the cuda package will install both the cuda-runtime and the cuda-toolkit. The cuda-toolkit is intended for developing CUDA programs and monitoring CUDA jobs. If your particular installation requires only running GPU jobs, it’s recommended to install only the cuda-runtime package.