Flexible composition and execution of large scale applications on distributed e-infrastructures
Flexible composition and execution of large scale applications on distributed e-infrastructures
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DOI：
10.1016/j.jocs.2013.10.009
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发表时间：
2014-01-01
影响因子：
3.3
通讯作者：
Coveney, Peter V.
中科院分区：
文献类型：
--
作者：
Zasada, Stefan J.;Chang, David C. W.;Coveney, Peter V.
随着可用计算能力的提高，计算机模拟在越来越多的科学学科中发挥着作用。利用这种能力促进了新的、更有效且不同于以往的研究。要实现这一点，不可避免地需要使用桌面计算机之外的计算能力，利用集群、超级计算机、数据存储库、网络以及这些资源的分布式集合。使用多样化的电子基础设施带来了进行分布式多尺度模拟的能力。使用一种这样的资源会带来一些可用性和安全性问题；当涉及多个地理上分布的资源时，困难会加剧。在本文中，我们提出一种解决方案——应用托管环境（Application Hosting Environment），它在分布式电子基础设施资源之上提供了一个软件即服务层。我们描述了应用托管环境第3版中存在的性能和可用性增强，并展示了这些如何为在不同应用领域（从计算物理和化学、材料科学到生物学和生物医学）工作的计算科学家提供了一个高性能、易于使用的网关。（C）2013爱思唯尔有限公司。保留所有权利。
Computer simulation is finding a role in an increasing number of scientific disciplines, concomitant with the rise in available computing power. Marshalling this power facilitates new, more effective and different research than has been hitherto possible. Realizing this inevitably requires access to computational power beyond the desktop, making use of clusters, supercomputers, data repositories, networks and distributed aggregations of these resources. The use of diverse e-infrastructure brings with it the ability to perform distributed multiscale simulations. Accessing one such resource entails a number of usability and security problems; when multiple geographically distributed resources are involved, the difficulty is compounded. In this paper we present a solution, the Application Hosting Environment,3 which provides a Software as a Service layer on top of distributed e-infrastructure resources. We describe the performance and usability enhancements present in AHE version 3, and show how these have led to a high performance, easy to use gateway for computational scientists working in diverse application domains, from computational physics and chemistry, materials science to biology and biomedicine. (C) 2013 Elsevier B.V. All rights reserved.