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. 2014 Oct 10;8:78. doi: 10.3389/fninf.2014.00078

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Copyright © 2014 Kunkel, Schmidt, Eppler, Plesser, Masumoto, Igarashi, Ishii, Fukai, Morrison, Diesmann and Helias.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Maximum network size and corresponding run time as a function of number of virtual processes. Triangles show the maximum network size that can be simulated with parameter set 1 (cf. Section 2.2) on the K computer (red) and on JUQUEEN (blue) when using the 4g technology with T = 8 threads per compute node. The dotted black line indicates the ideal case where the network size increases with the same factor as the number of virtual processes. Dark blue (JUQUEEN) and orange (K) triangles represent the maximum network size using all compute nodes and parameter set 2 (JUQUEEN: 1.08 · 10⁹ neurons, K: 1.86 · 10⁹ neurons). Filled circles show the corresponding wall-clock time required to simulate the network for 1 s of biological time.