High Performance Computing in Science and Engineering ’08: Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2008

Volker Gaibler, Max Camenzind (auth.), Wolfgang E. Nagel, Dietmar B. Kröner, Michael M. Resch (eds.)3540883010, 9783540883012, 9783540883036, 3540883037

The discussions and plans on all scienti?c, advisory, and political levels to realize an even larger “European Supercomputer” in Germany, where the hardware costs alone will be hundreds of millions Euro – much more than in the past – are getting closer to realization. As part of the strategy, the three national supercomputing centres HLRS (Stuttgart), NIC/JSC (Julic ¨ h) and LRZ (Munich) have formed the Gauss Centre for Supercomputing (GCS) as a new virtual organization enabled by an agreement between the Federal Ministry of Education and Research (BMBF) and the state ministries for research of Baden-Wurttem ¨ berg, Bayern, and Nordrhein-Westfalen. Already today, the GCS provides the most powerful high-performance computing – frastructure in Europe. Through GCS, HLRS participates in the European project PRACE (Partnership for Advances Computing in Europe) and – tends its reach to all European member countries. These activities aligns well with the activities of HLRS in the European HPC infrastructure project DEISA (Distributed European Infrastructure for Supercomputing Appli- tions) and in the European HPC support project HPC-Europa. Beyond that, HLRS and its partners in the GCS have agreed on a common strategy for the installation of the next generation of leading edge HPC hardware over the next ?ve years. The University of Stuttgart and the University of Karlsruhe have furth- more agreed to bundle their competences and resources.

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Table of contents :
Front Matter….Pages i-xii
Front Matter….Pages 1-2
Magnetic Fields in Very Light Extragalactic Jets….Pages 3-11
The SuperN-Project: Status and Outlook….Pages 13-28
Massless Four-Loop Integrals and the Total Cross Section in e + e − Annihilation….Pages 29-37
Front Matter….Pages 39-40
Computer Simulations of Complex Many-Body Systems….Pages 41-57
Quantum Confined Stark Effect in Embedded PbTe Nanocrystals….Pages 59-70
Signal Transport in and Conductance of Correlated Nanostructures….Pages 71-82
Supersolid Fermions Inside Harmonic Traps….Pages 83-92
Front Matter….Pages 93-94
Azobenzene–Metal Junction as a Mechanically and Opto–Mechanically Driven Switch….Pages 95-108
A Density-functional Study of Nitrogen and Oxygen Mobility in Fluorite-type Tantalum Oxynitrides….Pages 109-117
Molecular Modeling and Simulation of Thermophysical Properties: Application to Pure Substances and Mixtures….Pages 119-133
Front Matter….Pages 135-135
A Hybrid Finite-Volume/Transported PDF Model for Simulations of Turbulent Flames on Vector Machines….Pages 137-152
Numerical Investigations of Model Scramjet Combustors….Pages 153-166
Front Matter….Pages 167-169
Direct Numerical Simulation of Film Cooling in Hypersonic Boundary-Layer Flow….Pages 171-189
Two-Point Correlations of a Round Jet into a Crossflow – Results from a Direct Numerical Simulation….Pages 191-203
The Influence of Periodically Incoming Wakes on the Separating Flow in a Compressor Cascade….Pages 205-215
Turbulence and Internal Waves in a Stably-Stratified Channel Flow….Pages 217-227
High Resolution Direct Numerical Simulation of Homogeneous Shear Turbulence….Pages 229-239
Direct Numerical Simulation (DNS) on the Influence of Grid Refinement for the Process of Splashing….Pages 241-255
Implicit LES of Passive-Scalar Mixing in a Confined Rectangular-Jet Reactor….Pages 257-268
Wing-Tip Vortex / Jet Interaction in the Extended Near Field….Pages 269-283
Front Matter….Pages 167-169
Impact of Density Differences on Turbulent Round Jets….Pages 285-299
Thermal & Flow Field Analysis of Turbulent Swirling Jet Impingement Using Large Eddy Simulation….Pages 301-315
Hybrid Techniques for Large–Eddy Simulations of Complex Turbulent Flows….Pages 317-332
Vector Computers in a World of Commodity Clusters, Massively Parallel Systems and Many-Core Many-Threaded CPUs: Recent Experience Based on an Advanced Lattice Boltzmann Flow Solver….Pages 333-347
Numerical Modeling of Fluid Flow in Porous Media and in Driven Colloidal Suspensions….Pages 349-363
Numerical Characterization of the Reacting Flow in a Swirled Gasturbine Model Combustor….Pages 365-380
Numerical Simulation of Helicopter Aeromechanics in Slow Descent Flight….Pages 395-410
Partitioned Fluid-Structure Coupling and Vortex Simulation on HPC-Systems….Pages 411-424
FEASTSolid and FEASTFlow: FEM Applications Exploiting FEAST’s HPC Technologies….Pages 425-440
Front Matter….Pages 441-442
Effects of Intentional and Inadvertent Hygroscopic Cloud Seeding….Pages 443-457
The Agulhas System as a Key Region of the Global Oceanic Circulation….Pages 459-469
HLRS Project Report 2007/2008: “Simulating El Nino in an Eddy-Resolving Coupled Ocean-Ecosystem Model”….Pages 471-477
Front Matter….Pages 479-480
Numerical Studies on the Influence of Thickness on the Residual Stress Development During Shot Peening….Pages 481-492
A Transient Investigation of Multi-Layered Welds at Large Structures….Pages 493-505
High Performance Computing and Discrete Dislocation Dynamics: Plasticity of Micrometer Sized Specimens….Pages 507-523
Front Matter….Pages 525-527
Molecular Modeling of Hydrogen Bonding Fluids: New Cyclohexanol Model and Transport Properties of Short Monohydric Alcohols….Pages 529-541
Investigation of Process-Specific Size Effects by 3D-FE-Simulations….Pages 543-558
Andean Orogeny and Plate Generation….Pages 559-583
Hybrid Code Development for the Numerical Simulation of Instationary Magnetoplasmadynamic Thrusters….Pages 585-597
Doing IO with MPI and Benchmarking It with SKaMPI-5….Pages 599-613