GASPI tutorial @ EPCC

 “ARCHER, the UK’s national supercomputing service, offers training in software development and high-performance computing to scientists and researchers across the UK. As part of our training service we will be running a 2 day ‘Single-sided PGAS Communications Libraries’ training session.

In some applications, the overheads associated with the fundamentally two-sided (send and receive) nature of MPI message-passing can adversely affect performance. This is of particular concern for scaling up to extremely large systems. There is a renewed interest in simpler single-sided communications models where data can be written/read directly to/from remote processes.

This two-day course covers two single-sided PGAS libraries: the OpenSHMEM standard on day 1, and the new open-source GASPI library on day 2. Hands-on practical sessions will play a central part in the course, illustrating key issues such as the need for appropriate synchronisation to ensure program correctness. All the exercises can be undertaken using C or Fortran. The OpenSHMEM material will be delivered by the ARCHER CSE team; the GASPI material will be delivered by Christian Simmendinger (T-Systems Solutions for Research). ”


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