SC13 Home > SC13 Schedule > SC13 Presentation - Extreme Scaling of Real World Applications to >130,000 Cores on SuperMUC

SCHEDULE: NOV 16-22, 2013

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Extreme Scaling of Real World Applications to >130,000 Cores on SuperMUC

SESSION: Research Poster Reception

EVENT TYPE: Posters, Electronic Posters, and Education Posters

TIME: 5:15PM - 7:00PM

AUTHOR(S):Helmut Satzger, Momme Allalen, Christoph Bernau, Nicolay Hammer, David Brayford, Carmen Navarrete, Ferdinand Jamitzky, Anupam Karmakar, wolfram schmidt, Jan Frederik Engels, Gurvan Bazin, Jürg Diemand, Klaus Dolag, Carsten Kutzner, Andreas Marek, Philipp Trisjono, Arndt Bode, Herbert Huber, Matthias Brehm

ROOM:Mile High Pre-Function

ABSTRACT:
In July 2013, the Leibniz Supercomputing Centre held the first workshop to test extreme scaling on SuperMUC, the 3 PFLOP/s system with 147,456 Intel Sandy Bridge CPU cores. Groups from 15 international projects came to the LRZ with codes that had could scale up to 4 islands (32,768 cores). During the workshop, the participants tested the scaling capabilities on the whole system. Application experts from the LRZ, Intel and IBM were on site to resolve issues and assist in the performance optimization. New techniques like fast startup were successfully tested which helped to reduce the startup time by a factor of 2-3. At the end of the workshop, 6 applications were successfully running on the full machine, while the other 8 applications managed to run on half of the system. The LRZ is already planning a follow-up workshop where the improvements and feedback from the experts will be tested.

Chair/Author Details:

Helmut Satzger - Leibniz Supercomputing Centre

Momme Allalen - Leibniz Supercomputing Centre

Christoph Bernau - Leibniz Supercomputing Centre

Nicolay Hammer - Leibniz Supercomputing Centre

David Brayford - Leibniz Supercomputing Centre

Carmen Navarrete - Leibniz Supercomputing Centre

Ferdinand Jamitzky - Leibniz Supercomputing Centre

Anupam Karmakar - Leibniz Supercomputing Centre

wolfram schmidt - University of Göttingen

Jan Frederik Engels - University of Göttingen

Gurvan Bazin - Universitäts-Sternwarte, Ludwig-Maximilians Universität München