Extreme Scale-out SuperMUC Phase 2 - lessons learned

Abhishek Deshmukh; Alexander Block; Anand Nikhil; Antonio Ragagnin; Anupam Karmakar; Arndt Bode; Christoph Federrath; Daniel Gr\"unewald; Dieter Kranzlm\"uller; Ferdinand Jamitzky

Extreme Scale-out SuperMUC Phase 2 - lessons learned

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arxiv 1609.01507 v1 pith:U7LPLF7J submitted 2016-09-06 cs.DC astro-ph.IMphysics.comp-phphysics.flu-dyn

Extreme Scale-out SuperMUC Phase 2 - lessons learned

Nicolay Hammer , Ferdinand Jamitzky , Helmut Satzger , Momme Allalen , Alexander Block , Anupam Karmakar , Matthias Brehm , Reinhold Bader

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Luigi Iapichino Antonio Ragagnin Vasilios Karakasis Dieter Kranzlm\"uller Arndt Bode Herbert Huber Martin K\"uhn Rui Machado Daniel Gr\"unewald Philipp V. F. Edelmann Friedrich K. R\"opke Markus Wittmann Thomas Zeiser Gerhard Wellein Gerald Mathias Magnus Schw\"orer Konstantin Lorenzen Christoph Federrath Ralf Klessen Karl-Ulrich Bamberg Hartmut Ruhl Florian Schornbaum Martin Bauer Anand Nikhil Jiaxing Qi Harald Klimach Hinnerk St\"uben Abhishek Deshmukh Tobias Falkenstein Klaus Dolag Margarita Petkova

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classification cs.DC astro-ph.IMphysics.comp-phphysics.flu-dyn

keywords wereastrophysicsboltzmanncore-hoursextremelatticemillionscale-out

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In spring 2015, the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum, LRZ), installed their new Peta-Scale System SuperMUC Phase2. Selected users were invited for a 28 day extreme scale-out block operation during which they were allowed to use the full system for their applications. The following projects participated in the extreme scale-out workshop: BQCD (Quantum Physics), SeisSol (Geophysics, Seismics), GPI-2/GASPI (Toolkit for HPC), Seven-League Hydro (Astrophysics), ILBDC (Lattice Boltzmann CFD), Iphigenie (Molecular Dynamic), FLASH (Astrophysics), GADGET (Cosmological Dynamics), PSC (Plasma Physics), waLBerla (Lattice Boltzmann CFD), Musubi (Lattice Boltzmann CFD), Vertex3D (Stellar Astrophysics), CIAO (Combustion CFD), and LS1-Mardyn (Material Science). The projects were allowed to use the machine exclusively during the 28 day period, which corresponds to a total of 63.4 million core-hours, of which 43.8 million core-hours were used by the applications, resulting in a utilization of 69%. The top 3 users were using 15.2, 6.4, and 4.7 million core-hours, respectively.

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