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XSEDE is an advanced, powerful, and robust collection of integrated advanced digital resources and services, giving researchers access to large supercomputers and related services such as storage and science gateways. TTS RGTS (Research and Geospatial Technology Services) serves as a local source of knowledge and support through its membership in the XSEDE Campus Champions program, acting as a conduit for account access to XSEDE services, applications, and digital resources, which include some of the largest supercomputers in the world with an enormous number of cpu cores, gpu devices, storage, high memory systems and shared memory nodes.
For more information see XSEDE Extreme Science and Engineering Discovery Environment