Always wanted to know what NVIDIA GPUDirect is about and how your MPI+CUDA application can benefit from using it? In this session you will learn how MPI implementations take advantage of GPUDirect technologies to make your applications run faster, including peer-to-peer communication and RDMA. We will introduce several free and commercial CUDA-aware MPI implementations that are available today, ans show and how easy it is to use them. And we will present performance gainsfor real world applications as well as micro benchmarks. If you are working on a MPI+GPU application, then don''t miss this session to learn how NVIDIA GPUDirect and CUDA-aware MPI can give you improved performance, improved usability and better maintainability of your code.