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The book reports on selected projects on the High Performance Computer in Bavaria (HLRB). The projects originate from the fields of fluid dynamics, astrophysics and cosmology, computational physics including high energy physics, computational chemistry and materials sciences, geophysics, biosciences, and computer sciences. Moreover, results from KONWIHR (the Competence Network for Technical and Scientific High Performance Computing in Bavaria) are presented. The articles provide an overview of the broad range of applications that require high performance computing for solving challenging problems. For each project the scientific background is described, along with the results achieved and methodology used. The book also describes the latest advances in high performance applications and reports on the performance and scaling numbers.

Engineering -- Data processing -- Congresses. --- High performance computing -- Congresses. --- High-Performance Computing Center. --- Science -- Data processing -- Congresses. --- Supercomputers -- Congresses. --- High performance computing --- Science --- Engineering --- Data processing --- Mathematics. --- Computer science --- Computer mathematics. --- Physics. --- Fluids. --- Astrophysics. --- Computational Mathematics and Numerical Analysis. --- Numerical and Computational Physics. --- Fluid- and Aerodynamics. --- Astrophysics and Astroparticles. --- Mathematics of Computing. --- Computer science. --- Numerical and Computational Physics, Simulation. --- Informatics --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Mathematics --- Computer science—Mathematics. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Hydraulics --- Mechanics --- Hydrostatics --- Permeability --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- KONWIHR

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The Leibniz Supercomputing Centre (LRZ) and the Bavarian Competence Network for Technical and Scienti?c High Performance Computing (KONWIHR) publish in the present book results of numerical simulations facilitated by the High P- formance Computer System in Bavaria (HLRB II) within the last two years. The papers were presented at the Fourth Joint HLRB and KONWIHR Review and - sult Workshop in Garching on 8th and 9th December 2009, and were selected from all progress reports of projects that use the HLRB II. Similar to the workshop two years ago, the majority of the contributed papers belong to the area of computational ?uid dynamics (CFD), condensed matter physics, astrophysics, chemistry, computer sciences and high-energy physics. We note a considerable increase of the user c- munity in some areas: Compared to 2007, the number of papers increased from 6 to 12 in condensed matter physics and from 2 to 5 in high-energy physics. Bio s- ences contributed only one paper in 2007, but four papers in 2009. This indicates that the area of application of supercomputers is continuously growing and entering new ?elds of research. The year 2007 saw two major events of particular importance for the LRZ. First, after a substantial upgrade with dual-core processors the SGI Altix 4700 superc- puter reached a peak performance of more than 62 Tera?op/s. And second, the n- pro?t organization Gauss Centre for Supercomputing e. V. (GCS) was founded on April 13th.

Engineering -- Data processing -- Congresses. --- High performance computing -- Congresses. --- Science -- Data processing -- Congresses. --- High performance computing --- Science --- Engineering --- Engineering & Applied Sciences --- Mathematics --- Physical Sciences & Mathematics --- Computer Science --- Mathematics - General --- Data processing --- Mathematics. --- Chemistry, Physical and theoretical. --- Application software. --- Computer mathematics. --- Fluids. --- Astrophysics. --- Computational Mathematics and Numerical Analysis. --- Computational Science and Engineering. --- Fluid- and Aerodynamics. --- Astrophysics and Astroparticles. --- Computer Applications. --- Theoretical and Computational Chemistry. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Hydraulics --- Mechanics --- Hydrostatics --- Permeability --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software --- Chemistry, Theoretical --- Physical chemistry --- Theoretical chemistry --- Chemistry --- Math --- Computer science --- Computer science. --- Chemistry. --- Physical sciences --- Informatics