Download or read book Generalized Algebraic Kernels and Multipole Expansions for Massively Parallel Vortex Particle Methods written by Robert Speck and published by Forschungszentrum Jülich. This book was released on 2011 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications Tools and Techniques on the Road to Exascale Computing written by K. De Bosschere and published by IOS Press. This book was released on 2012-05-09 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Characterizing Load and Communication Imbalance in Parallel Applications written by David Böhme and published by Forschungszentrum Jülich. This book was released on 2014-03-28 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiscale Modelling Methods for Applications in Materials Science written by Ivan Kondov and published by Forschungszentrum Jülich. This book was released on 2013 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Optimization Methods for Scientific Workflows in e Science Infrastructures written by Sonja Holl and published by Forschungszentrum Jülich. This book was released on 2014 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book UNICORE Summit 2013 written by Valentina Huber and published by Forschungszentrum Jülich. This book was released on 2013 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pedestrian Fundamental Diagrams written by Jun Zhang and published by Forschungszentrum Jülich. This book was released on 2012 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book From Computational Biophysics to Systems Biology CBSB11 Celebrating Harold Scheraga s 90th Birthday written by Paolo Carloni and published by Forschungszentrum Jülich. This book was released on 2012 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Mathilde Romberg and published by Forschungszentrum Jülich. This book was released on 2011 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Route Choice Modelling and Runtime Optimisation for Simulation of Building Evacuation written by Armel Ulrich Kemloh Wagoum and published by Forschungszentrum Jülich. This book was released on 2013 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Solute Transport Modeling in Coupled Soil and Plant Root Systems written by Natalie Schröder and published by Forschungszentrum Jülich. This book was released on 2014-03-21 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Domain Decomposition Methods in Science and Engineering XXI written by Jocelyne Erhel and published by Springer. This book was released on 2014-10-10 with total page 931 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Periodic Boundary Conditions and the Error controlled Fast Multipole Method written by Ivo Kabadshow and published by Forschungszentrum Jülich. This book was released on 2012 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vortex Methods written by Georges-Henri Cottet and published by Cambridge University Press. This book was released on 2008-04-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Fast Methods for Long range Interactions in Complex Systems written by Godehard Sutmann and published by Forschungszentrum Jülich. This book was released on 2011 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parallel Computing Accelerating Computational Science and Engineering CSE written by M. Bader and published by IOS Press. This book was released on 2014-03-31 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parallel computing has been the enabling technology of high-end machines for many years. Now, it has finally become the ubiquitous key to the efficient use of any kind of multi-processor computer architecture, from smart phones, tablets, embedded systems and cloud computing up to exascale computers. _x000D_ This book presents the proceedings of ParCo2013 – the latest edition of the biennial International Conference on Parallel Computing – held from 10 to 13 September 2013, in Garching, Germany. The conference focused on several key parallel computing areas. Themes included parallel programming models for multi- and manycore CPUs, GPUs, FPGAs and heterogeneous platforms, the performance engineering processes that must be adapted to efficiently use these new and innovative platforms, novel numerical algorithms and approaches to large-scale simulations of problems in science and engineering._x000D_ The conference programme also included twelve mini-symposia (including an industry session and a special PhD Symposium), which comprehensively represented and intensified the discussion of current hot topics in high performance and parallel computing. These special sessions covered large-scale supercomputing, novel challenges arising from parallel architectures (multi-/manycore, heterogeneous platforms, FPGAs), multi-level algorithms as well as multi-scale, multi-physics and multi-dimensional problems._x000D_ It is clear that parallel computing – including the processing of large data sets (“Big Data”) – will remain a persistent driver of research in all fields of innovative computing, which makes this book relevant to all those with an interest in this field.
Download or read book Software for Exascale Computing SPPEXA 2016 2019 written by Hans-Joachim Bungartz and published by Springer Nature. This book was released on 2020-07-30 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book summarizes the research done and results obtained in the second funding phase of the Priority Program 1648 "Software for Exascale Computing" (SPPEXA) of the German Research Foundation (DFG) presented at the SPPEXA Symposium in Dresden during October 21-23, 2019. In that respect, it both represents a continuation of Vol. 113 in Springer’s series Lecture Notes in Computational Science and Engineering, the corresponding report of SPPEXA’s first funding phase, and provides an overview of SPPEXA’s contributions towards exascale computing in today's sumpercomputer technology. The individual chapters address one or more of the research directions (1) computational algorithms, (2) system software, (3) application software, (4) data management and exploration, (5) programming, and (6) software tools. The book has an interdisciplinary appeal: scholars from computational sub-fields in computer science, mathematics, physics, or engineering will find it of particular interest.
