This introductory class is mainly intended for people who have just started working on the Cray XE6 Beagle2 or are considering using it. It aims at familiarizing new users with the hardware and software architecture (e.g., compilation, submission). Cray’s performance analysis tools will briefly be introduced as well. We plan to include small practical exercises about compilation, data transfer and submission of jobs. Users are strongly invited to ask specific questions about how to port their specific calculations to Beagle and how to submit jobs.