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Author: Zahari Zlatev Publisher: Elsevier ISBN: 0080462480 Category : Mathematics Languages : en Pages : 392
Book Description
Many large mathematical models, not only models arising and used in environmental studies, are described by systems of partial differential equations. The discretization of the spatial derivatives in such models leads to the solution of very large systems of ordinary differential equations. These systems contain many millions of equations and have to be handled over large time intervals by applying many time-steps (up to several hundred thousand time-steps). Furthermore, many scenarios are as a rule to be run. This explains the fact that the computational tasks in this situation are enormous. Therefore, it is necessary to select fast numerical methods; to develop parallel codes and, what is most important when the problems solved are very large to organize the computational process in a proper way.The last item (which is very often underestimated but, let us re-iterate, which is very important) is the major topic of this book. In fact, the proper organization of the computational process can be viewed as a preparation of templates which can be used with different numerical methods and different parallel devices. The development of such templates is described in the book. It is also demonstrated that many comprehensive environmental studies can successfully be carried out when the computations are correctly organized. Thus, this book will help the reader to understand better that, while (a) it is very important to select fast numerical methods as well as (b) it is very important to develop parallel codes, this will not be sufficient when the problems solved are really very large. In the latter case, it is also crucial to exploit better the computer architecture by organizing properly the computational process. - Use of templates in connection with the treatment of very large models - Performance of comprehensive environmental studies - Obtaining reliable and robust information about pollution levels - Studying the impact of future climatic changes on high pollution levels - Investigating trends related to critical levels of pollution
Author: Zahari Zlatev Publisher: Springer Science & Business Media ISBN: 9401145709 Category : Science Languages : en Pages : 400
Book Description
1. Contents of these proceedings. These proceedings contain most of the papers which were presented at the NATO ARW (Advanced Research Workshop) on "Large Scale Computations in Air Pollution Modelling". The workshop was held, from June 6 to June to, 1998, in Residence Bistritza, a beautiful site near Sofia, the capital of Bulgaria, and at the foot of the mountain Vitosha. 2. Participants in the NATO ARW. Scientists from 23 countries in Europe, North America and Asia attended the meeting and participated actively in the discussions. The total number of participants was 57. The main topic of the discussions was the role of the large mathematical models in resolving difficult problems connected with the protection of our environment. 3. Major topics discussed at the workshop. The protection of our environment is one of the most important problems facing modern society. The importance of this problem has steadily increased during the last two-three decades, and environment protection will become even more important in the next century. Reliable and robust control strategies for keeping the pollution caused by harmful chemical compounds under certain safe levels have to be developed and used in a routine way. Large mathematical models, in which all important physical and chemical processes are adequately described, can successfully be used to solve this task.
Author: Ivan Lirkov Publisher: Springer ISBN: 354024588X Category : Computers Languages : en Pages : 493
Book Description
The papers in this volume were presented at the 4th International Conference on Large-Scale Scientific Computations ICLSSC 2003. It was held in Sozopol, Bulgaria, June 4-8, 2003. The conference was organized and sponsored by the Central Laboratory for Parallel Processing at the Bulgarian Academy of Sciences. Support was also provided from the Center of Excellence "BIS 21" (funded by the European Commission), SIAM and GAMM. A co-organizer of this traditional scientific meeting was the Division of Numerical Analysis and Statistics of the University of Rousse. The success of the conference and the present volume in particular are the outcome of the joint efforts of many colleagues from various institutions and organizations. First thanks to all the members of the Scientific Committee for their valuable contribution to forming the scientific face of the conference, as well as for their help in reviewing contributed papers. We would like to specially thank the organizers of the special sessions: R. Blaheta, N. Dimitrova, A. Ebel, K. Georgiev, O. Iliev, A. Karaivanova, H. Kosina, M. Krastanov, U. Langer, P. Minev, M. Neytcheva, M. Sch ̈ afer, V. Veliov, and Z. Zlatev. We are also grateful to the staff involved in the local organization. Special Events: - The conference was devoted to the 60th anniversary of Raytcho Lazarov. - During the conference, the nomination for the World Level of the Hall of Fame for Engineering, Science and Technology, HOFEST, was officially awarded to Owe Axelsson.
Author: Jill P. Mesirov Publisher: SIAM ISBN: 9780898712797 Category : Computers Languages : en Pages : 360
Book Description
This text on very large scale computation in the 21st century covers such topics as: challenges in the natural sciences and physics; chemistry; fluid dynamics; astrophysics; biology; challenges in engineering; challenges in algorithm design; and challenges in system design.
Author: Werner Dubitzky Publisher: John Wiley & Sons ISBN: 1118130499 Category : Science Languages : en Pages : 220
Book Description
Complex systems modeling and simulation approaches are being adopted in a growing number of sectors, including finance, economics, biology, astronomy, and many more. Technologies ranging from distributed computing to specialized hardware are explored and developed to address the computational requirements arising in complex systems simulations. The aim of this book is to present a representative overview of contemporary large-scale computing technologies in the context of complex systems simulations applications. The intention is to identify new research directions in this field and to provide a communications platform facilitating an exchange of concepts, ideas and needs between the scientists and technologist and complex system modelers. On the application side, the book focuses on modeling and simulation of natural and man-made complex systems. On the computing technology side, emphasis is placed on the distributed computing approaches, but supercomputing and other novel technologies are also considered.
Author: Hans J Herrmann Publisher: World Scientific ISBN: 9814552038 Category : Science Languages : en Pages : 296
Book Description
Contents:A Lattice Solid Model for the Nonlinear Dynamics of Earthquakes (P Mora & D Place)Vectorized and Parallelized Algorithms for Multi-Million Particle MD-Simulations (W Form et al)Green-Function Method for Electronic Structure of Periodic Crystals (R Zeller)Parallelization of the Ising Simulation (N Ito)A Nonlocal Approach to Vertex Models and Quantum Spin Systems (H G Evertz & M Marcu)The Static Quark-Antiquark-Potential: A ‘Classical’ Experiment on the Connection Machine CM-2 (K Schilling & G S Bali)Determination of Monopole Current Clusters in Four-Dimensional Quantum Electrodynamics (A Bode et al)QCD Calculations on the QCDPAX (K Kanaya)UKQCD — Recent Results and Future Prospects (R Kenway)Programming Tools for Parallel Computers (K J M Moriarity & T Trappenberg)Workstation Clusters: One Way to Parallel Computing (M Weber)APE100 and Beyond (R Tripiccione)and other papers Readership: Computational physicists. keywords:
Author: Selim G. Akl Publisher: Springer Science & Business Media ISBN: 9783540535041 Category : Coding theory Languages : en Pages : 550
Book Description
This volume contains selected and invited papers presented at the International Conference on Computing and Information, ICCI '90, Niagara Falls, Ontario, Canada, May 23-26, 1990. ICCI conferences provide an international forum for presenting new results in research, development and applications in computing and information. Their primary goal is to promote an interchange of ideas and cooperation between practitioners and theorists in the interdisciplinary fields of computing, communication and information theory. The four main topic areas of ICCI '90 are: - Information and coding theory, statistics and probability, - Foundations of computer science, theory of algorithms and programming, - Concurrency, parallelism, communications, networking, computer architecture and VLSI, - Data and software engineering, databases, expert systems, information systems, decision making, and AI methodologies.
Author: Jesus Labarta Publisher: Springer Science & Business Media ISBN: 3540777032 Category : Computers Languages : en Pages : 536
Book Description
This book constitutes the refereed joint post-conference proceedings of the 6th International Symposium on High-Performance Computing, ISHPC 2005, held in, Japan, in 2005. It also includes the refereed post-proceedings of the First International Workshop on Advanced Low Power Systems 2006, ALPS2006, and some from the Workshop on Applications for PetaFLOPS Computing, APC 2005. A total of 42 papers were carefully selected from 76 submissions, covering a huge range of topics.
Author: Mingfeng Huang Publisher: Springer ISBN: 9811017441 Category : Technology & Engineering Languages : en Pages : 251
Book Description
This book discusses performance-based seismic and wind-resistant design for high-rise building structures, with a particular focus on establishing an integrated approach for performance-based wind engineering, which is currently less advanced than seismic engineering. This book also provides a state-of-the-art review of numerous methodologies, including computational fluid dynamics (CFD), extreme value analysis, structural optimization, vibration control, pushover analysis, response spectrum analysis, modal parameter identification for the assessment of the wind-resistant and seismic performance of tall buildings in the design stage and actual tall buildings in use. Several new structural optimization methods, including the augmented optimality criteria method, have been developed and employed in the context of performance-based design. This book is a valuable resource for students, researchers and engineers in the field of civil and structural engineering.
Author: John Wainwright Publisher: John Wiley & Sons ISBN: 0470091541 Category : Science Languages : en Pages : 432
Book Description
Simulation models are increasingly used to investigate processes and solve practical problems in a wide variety of disciplines eg. climatology, ecology, hydrology, geomorphology, engineering. Environmental Modelling: A Practical Approach addresses the development, testing and application of such models, which apply across traditional boundaries, and demonstrate how interactions across these boundaries can be beneficial. Provides a general overview of methods and approaches as well as focusing on key subject areas written by leading practitioners in the field Assesses the advantages and disadvantages of different models used and provides case studies supported with data, output, tutorial exercises and links to the model and/or model applications via the book's website Covers major developments in the field, eg. the use of GIS and remote sensing techniques, and scaling issues As associated website contains colour images, as well as links to www resources
Author: Zahari Zlatev
Author: Zahari Zlatev
Author: Ivan Lirkov
Author: Ivan Lirkov
Author: Jill P. Mesirov
Author: Werner Dubitzky
Author: Hans J Herrmann
Author: Selim G. Akl
Author: Jesus Labarta
Author: Mingfeng Huang
Author: John Wainwright