High Performance Computing on Vector Systems 2007 by Seiji Tsuboi (auth.), Michael Resch, Sabine Roller, Peter

By Seiji Tsuboi (auth.), Michael Resch, Sabine Roller, Peter Lammers, Toshiyuki Furui, Martin Galle, Wolfgang Bez (eds.)

This ebook comprises papers provided on the 5th Teraflop Workshop, held in November 2006 at Tohoku college, Japan and the 6th Teraflop Workshop held in March 2007 on the Stuttgart excessive functionality Computing middle (HLRS) in Germany. It offers the cutting-edge in excessive functionality computing and simulation on sleek supercomputer architectures. It covers developments in and software program improvement as a rule and in particular the way forward for vector-based structures and heterogeneous architectures. the applying contributions conceal computational fluid dynamics, fluid-structure interplay, physics, chemistry, astrophysics, and weather examine. cutting edge fields like coupled multi-physics or multi-scale simulations are presented.

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As fuel consumption during cruise is mainly determined by viscous drag its reduction offers the greatest potential for fuel savings. One promising candidate to reduce viscous drag of a commercial aircraft is laminar flow control (LFC) by boundary-layer suction on the wings, tailplanes, and nacelles with a fuel saving potential of 16%. ) Suction has been known for decades to delay the onset of the dragincreasing turbulent state of the boundary-layer by significantly enhancing its laminar stability and thus pushing laminar-turbulent transition downstream.

Without these people the projects could not have been completed successfully. 3. The support from the HPC centers (SARA and HLRS) has been extremely good. Without this support, it would have been difficult to carry out these projects. 4. An adequate management structure is essential to be able to get sufficient scientific output from these type of projects. Finally, the projects have certainly contributed to the current initiatives in the Netherlands to develop, with other European member states, an independent climate model (EC-Earth).

Further work is ongoing to explore this issue. The ocean model use 255 vector processors (5% of the ES) and reach 33of the peak performance, an excellent number for this kind of simulation involving a large quantity of inputs and outputs. 6 Application tunings for vector computers under the Teraflop Workbench The project in Teraflop Workbench to improve OPA9 was launched in June 2005, working with the Institute f¨ ur Meereskunde IFM GEOMAR of the University of Kiel, Germany. 09 and a 1/4 degrees model in March 2006.

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