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CUDA is a parallel computing platform and application programming interface (API) model created by Nvidia. It allows software developers and software engineers to use a CUDA-enabled graphics processing unit (GPU) for general purpose processing – an approach termed GPGPU. The CUDA platform is a software layer that gives direct access to the GPU's virtual instruction set and parallel computational elements, for the execution of compute kernels.

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To find available versions of CUDA installed on Raijin for use on the gpu queue only, do

module avail cuda

To load and use a specific version of CUDA, say 7.5, do

module load cuda/7.5