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Generalized Algebraic Kernels And Multipole Expansions For Massively Parallel Vortex Particle Methods Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Generalized Algebraic Kernels And Multipole Expansions For Massively Parallel Vortex Particle Methods book. This book definitely worth reading, it is an incredibly well-written.
Author : Robert Speck
Publisher : Forschungszentrum Jülich
Page : 141 pages
File Size : 42,9 Mb
Release : 2011
Category : Electronic
ISBN : 9783893367337
Author : K. De Bosschere
Publisher : IOS Press
Page : 688 pages
File Size : 50,8 Mb
Release : 2012-05-09
Category : Computers
ISBN : 9781614990413
Single processing units have now reached a point where further major improvements in their performance are restricted by their physical limitations. This is causing a slowing down in advances at the same time as new scientific challenges are demanding exascale speed. This has meant that parallel processing has become key to High Performance Computing (HPC).This book contains the proceedings of the 14th biennial ParCo conference, ParCo2011, held in Ghent, Belgium. The ParCo conferences have traditionally concentrated on three main themes: Algorithms, Architectures and Applications. Nowadays though, the focus has shifted from traditional multiprocessor topologies to heterogeneous and manycores, incorporating standard CPUs, GPUs (Graphics Processing Units) and FPGAs (Field Programmable Gate Arrays). These platforms are, at a higher abstraction level, integrated in clusters, grids and clouds. The papers presented here reflect this change of focus. New architectures, programming tools and techniques are also explored, and the need for exascale hardware and software was also discussed in the industrial session of the conference.This book will be of interest to all those interested in parallel computing today, and progress towards the exascale computing of tomorrow.
Author : David Böhme
Publisher : Forschungszentrum Jülich
Page : 135 pages
File Size : 46,7 Mb
Release : 2014-03-28
Category : Electronic
ISBN : 9783893369409
Author : Ivan Kondov,Godehard Sutmann
Publisher : Forschungszentrum Jülich
Page : 335 pages
File Size : 51,9 Mb
Release : 2013
Category : Electronic
ISBN : 9783893368990
Author : Sonja Holl
Publisher : Forschungszentrum Jülich
Page : 207 pages
File Size : 48,7 Mb
Release : 2014
Category : Electronic
ISBN : 9783893369492
Scientific workflows have emerged as a key technology that assists scientists with the design, management, execution, sharing and reuse of in silico experiments. Workflow management systems simplify the management of scientific workflows by providing graphical interfaces for their development, monitoring and analysis. Nowadays, e-Science combines such workflow management systems with large-scale data and computing resources into complex research infrastructures. For instance, e-Science allows the conveyance of best practice research in collaborations by providing workflow repositories, which facilitate the sharing and reuse of scientific workflows. However, scientists are still faced with different limitations while reusing workflows. One of the most common challenges they meet is the need to select appropriate applications and their individual execution parameters. If scientists do not want to rely on default or experience-based parameters, the best-effort option is to test different workflow set-ups using either trial and error approaches or parameter sweeps. Both methods may be inefficient or time consuming respectively, especially when tuning a large number of parameters. Therefore, scientists require an effective and efficient mechanism that automatically tests different workflow set-ups in an intelligent way and will help them to improve their scientific results. This thesis addresses the limitation described above by defining and implementing an approach for the optimization of scientific workflows. In the course of this work, scientists’ needs are investigated and requirements are formulated resulting in an appropriate optimization concept. In a following step, this concept is prototypically implemented by extending a workflow management system with an optimization framework, including general mechanisms required to conduct workflow optimization. As optimization is an ongoing research topic, different algorithms are provided by pluggable extensions (plugins) that can be loosely coupled with the framework, resulting in a generic and quickly extendable system. In this thesis, an exemplary plugin is introduced which applies a Genetic Algorithm for parameter optimization. In order to accelerate and therefore make workflow optimization feasible at all, e-Science infrastructures are utilized for the parallel execution of scientific workflows. This is empowered by additional extensions enabling the execution of applications and workflows on distributed computing resources. The actual implementation and therewith the general approach of workflow optimization is experimentally verified by four use cases in the life science domain. All workflows were significantly improved, which demonstrates the advantage of the proposed workflow optimization. Finally, a new collaboration-based approach is introduced that harnesses optimization provenance to make optimization faster and more robust in the future.
Author : Valentina Huber,Ralph Müller-Pfefferkorn,Mathilde Romberg
Publisher : Forschungszentrum Jülich
Page : 107 pages
File Size : 49,7 Mb
Release : 2013
Category : Electronic
ISBN : 9783893369102
Author : Jun Zhang
Publisher : Forschungszentrum Jülich
Page : 125 pages
File Size : 49,6 Mb
Release : 2012
Category : Electronic
ISBN : 9783893368259
Author : Paolo Carloni
Publisher : Forschungszentrum Jülich
Page : 267 pages
File Size : 53,6 Mb
Release : 2012
Category : Electronic
ISBN : 9783893367481
Author : Mathilde Romberg
Publisher : Forschungszentrum Jülich
Page : 165 pages
File Size : 49,7 Mb
Release : 2011
Category : Electronic
ISBN : 9783893367504
Author : Armel Ulrich Kemloh Wagoum
Publisher : Forschungszentrum Jülich
Page : 155 pages
File Size : 47,5 Mb
Release : 2013
Category : Electronic
ISBN : 9783893368655
Author : Natalie Schröder
Publisher : Forschungszentrum Jülich
Page : 151 pages
File Size : 41,8 Mb
Release : 2014-03-21
Category : Electronic
ISBN : 9783893369232
Author : Jocelyne Erhel,Martin J. Gander,Laurence Halpern,Géraldine Pichot,Taoufik Sassi,Olof Widlund
Publisher : Springer
Page : 931 pages
File Size : 44,8 Mb
Release : 2014-10-10
Category : Mathematics
ISBN : 9783319057897
This volume contains a selection of papers presented at the 21st international conference on domain decomposition methods in science and engineering held in Rennes, France, June 25-29, 2012. Domain decomposition is an active and interdisciplinary research discipline, focusing on the development, analysis and implementation of numerical methods for massively parallel computers. Domain decomposition methods are among the most efficient solvers for large scale applications in science and engineering. They are based on a solid theoretical foundation and shown to be scalable for many important applications. Domain decomposition techniques can also naturally take into account multiscale phenomena. This book contains the most recent results in this important field of research, both mathematically and algorithmically and allows the reader to get an overview of this exciting branch of numerical analysis and scientific computing.
Author : Ivo Kabadshow
Publisher : Forschungszentrum Jülich
Page : 143 pages
File Size : 40,9 Mb
Release : 2012
Category : Electronic
ISBN : 9783893367702
Author : Georges-Henri Cottet,Petros D. Koumoutsakos
Publisher : Cambridge University Press
Page : 0 pages
File Size : 51,7 Mb
Release : 2008-04-24
Category : Science
ISBN : 0521061709
Vortex methods have matured in recent years, offering an interesting alternative to finite difference and spectral methods for high resolution numerical solutions of the Navier Stokes equations. In the past three decades, research into the numerical analysis aspects of vortex methods has provided a solid mathematical background for understanding the accuracy and stability of the method. At the same time vortex methods retain their appealing physical character, which was the motivation for their introduction. This book presents and analyzes vortex methods as a tool for the direct numerical simulation of impressible viscous flows. It will interest graduate students and researchers in numerical analysis and fluid mechanics and also serve as an ideal textbook for courses in fluid dynamics.
Author : Michael Griebel,Stephan Knapek,Gerhard Zumbusch
Publisher : Springer Science & Business Media
Page : 472 pages
File Size : 48,7 Mb
Release : 2007-08-16
Category : Science
ISBN : 9783540680956
This book details the necessary numerical methods, the theoretical background and foundations and the techniques involved in creating computer particle models, including linked-cell method, SPME-method, tree codes, amd multipol technique. It illustrates modeling, discretization, algorithms and their parallel implementation with MPI on computer systems with distributed memory. The text offers step-by-step explanations of numerical simulation, providing illustrative code examples. With the description of the algorithms and the presentation of the results of various simulations from fields such as material science, nanotechnology, biochemistry and astrophysics, the reader of this book will learn how to write programs capable of running successful experiments for molecular dynamics.
