Author :
Publisher :
Page : 88 pages
File Size : 22,10 MB
Release : 2002
Category :
ISBN :
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 86 pages
File Size : 24,2 MB
Release : 2018-06-11
Category :
ISBN : 9781720943396
One of the most significant challenges in large-scale climate modeling, as well as in high-performance computing in other scientific fields, is that of effectively integrating many software models from multiple contributors. A software framework facilitates the integration task, both in the development and runtime stages of the simulation. Effective software frameworks reduce the programming burden for the investigators, freeing them to focus more on the science and less on the parallel communication implementation. while maintaining high performance across numerous supercomputer and workstation architectures. This document surveys numerous software frameworks for potential use in Earth science modeling. Several frameworks are evaluated in depth, including Parallel Object-Oriented Methods and Applications (POOMA), Cactus (from (he relativistic physics community), Overture, Goddard Earth Modeling System (GEMS), the National Center for Atmospheric Research Flux Coupler, and UCLA/UCB Distributed Data Broker (DDB). Frameworks evaluated in less detail include ROOT, Parallel Application Workspace (PAWS), and Advanced Large-Scale Integrated Computational Environment (ALICE). A host of other frameworks and related tools are referenced in this context. The frameworks are evaluated individually and also compared with each other.Talbot, Bryan and Zhou, Shu-Jia and Higgins, Glenn and Zukor, Dorothy (Technical Monitor)Goddard Space Flight CenterEARTH SCIENCES; SOFTWARE ENGINEERING; COMPUTERIZED SIMULATION; ATMOSPHERIC MODELS; COMPUTER PROGRAMMING; PARALLEL PROCESSING (COMPUTERS); SUPERCOMPUTERS; GENERAL OVERVIEWS
Author :
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Page : 70 pages
File Size : 25,54 MB
Release : 2002
Category :
ISBN :
Author : Ian J. Taylor
Publisher : Springer Science & Business Media
Page : 532 pages
File Size : 12,13 MB
Release : 2007-12-31
Category : Computers
ISBN : 184628757X
This is a timely book presenting an overview of the current state-of-the-art within established projects, presenting many different aspects of workflow from users to tool builders. It provides an overview of active research, from a number of different perspectives. It includes theoretical aspects of workflow and deals with workflow for e-Science as opposed to e-Commerce. The topics covered will be of interest to a wide range of practitioners.
Author : Are Magnus Bruaset
Publisher : Springer Science & Business Media
Page : 491 pages
File Size : 37,20 MB
Release : 2006-03-05
Category : Mathematics
ISBN : 3540316191
Since the dawn of computing, the quest for a better understanding of Nature has been a driving force for technological development. Groundbreaking achievements by great scientists have paved the way from the abacus to the supercomputing power of today. When trying to replicate Nature in the computer’s silicon test tube, there is need for precise and computable process descriptions. The scienti?c ?elds of Ma- ematics and Physics provide a powerful vehicle for such descriptions in terms of Partial Differential Equations (PDEs). Formulated as such equations, physical laws can become subject to computational and analytical studies. In the computational setting, the equations can be discreti ed for ef?cient solution on a computer, leading to valuable tools for simulation of natural and man-made processes. Numerical so- tion of PDE-based mathematical models has been an important research topic over centuries, and will remain so for centuries to come. In the context of computer-based simulations, the quality of the computed results is directly connected to the model’s complexity and the number of data points used for the computations. Therefore, computational scientists tend to ?ll even the largest and most powerful computers they can get access to, either by increasing the si e of the data sets, or by introducing new model terms that make the simulations more realistic, or a combination of both. Today, many important simulation problems can not be solved by one single computer, but calls for parallel computing.
Author :
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Page : 1556 pages
File Size : 49,87 MB
Release : 1992
Category : Aeronautics
ISBN :
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 68 pages
File Size : 46,85 MB
Release : 2018-06-11
Category :
ISBN : 9781720943303
One of the most significant challenges in large-scale climate modeling, as well as in high-performance computing in other scientific fields, is that of effectively integrating many software models from multiple contributors. A software framework facilitates the integration task. both in the development and runtime stages of the simulation. Effective software frameworks reduce the programming burden for the investigators, freeing them to focus more on the science and less on the parallel communication implementation, while maintaining high performance across numerous supercomputer and workstation architectures. This document proposes a strawman framework design for the climate community based on the integration of Cactus, from the relativistic physics community, and UCLA/UCB Distributed Data Broker (DDB) from the climate community. This design is the result of an extensive survey of climate models and frameworks in the climate community as well as frameworks from many other scientific communities. The design addresses fundamental development and runtime needs using Cactus, a framework with interfaces for FORTRAN and C-based languages, and high-performance model communication needs using DDB. This document also specifically explores object-oriented design issues in the context of climate modeling as well as climate modeling issues in terms of object-oriented design.Talbot, Bryan and Zhou, Shu-Jia and Higgins, GlennGoddard Space Flight CenterSOFTWARE ENGINEERING; CLIMATE MODELS; DISTRIBUTED PROCESSING; COMPUTERIZED SIMULATION; ARCHITECTURE (COMPUTERS); DATA INTEGRATION; MATHEMATICAL MODELS; FORTRAN; OBJECT-ORIENTED PROGRAMMING; COMPUTER SYSTEMS DESIGN; C (PROGRAMMING LANGUAGE); RUN TIME (COMPUTERS)
Author :
Publisher :
Page : 1294 pages
File Size : 25,42 MB
Release : 1984
Category : Aeronautics
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 107 pages
File Size : 33,85 MB
Release : 2001-05-24
Category : Nature
ISBN : 0309072549
Scientists have long sought to unravel the fundamental mysteries of the land, life, water, and air that surround us. But as the consequences of humanity's impact on the planet become increasingly evident, governments are realizing the critical importance of understanding these environmental systemsâ€"and investing billions of dollars in research to do so. To identify high-priority environmental science projects, Grand Challenges in Environmental Sciences explores the most important areas of research for the next generation. The book's goal is not to list the world's biggest environmental problems. Rather it is to determine areas of opportunity thatâ€"with a concerted investmentâ€"could yield significant new findings. Nominations for environmental science's "grand" challenges were solicited from thousands of scientists worldwide. Based on their responses, eight major areas of focus were identifiedâ€"areas that offer the potential for a major scientific breakthrough of practical importance to humankind, and that are feasible if given major new funding. The book further pinpoints four areas for immediate action and investment.
Author :
Publisher :
Page : 116 pages
File Size : 26,16 MB
Release : 1970-06
Category :
ISBN :
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
