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| Grid computing has become a topic of significant interest in the scientific community as a means of enabling application developers to aggregate resources scattered around the globe for solving large-scale scientific problems. This monograph addresses four critical software development aspects for the engineering and execution of applications on parallel and Grid architectures.
A new directive-based language called ZEN is proposed for compact specification of wide value ranges of interest for arbitrary application parameters, including problem or machine sizes, array or loop distributions, software libraries, interconnection networks, or target execution machines. Based on the ZEN language, a novel experiment management tool called ZENTURIO is developed for automatic experiment management of large-scale performance and parameter studies on parallel and Grid architectures. This tool has been validated with respect to functionality and usefulness on several real-world parallel applications from various domains, including theoretical chemistry, photonics, finances, and numerical mathematics.
Depending on the ZENTURIO experiment management architecture a generic optimization framework is built up that integrates general-purpose meta-heuristics for solving NP-complete performance and parameter optimization problems in an exponential search space specified using the ZEN experiment specification language. Finally a timely approach is proposed for modeling and executing scientific workflows in dynamic and heterogeneous Grid environments, introducing an abstract formal model for hierarchical representation of complex directed graph-based workflows.
Thus this monograph contributes to various research areas related to integrated tool development for efficient engineering and high performance execution of scientific applications in Grid environments. |
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Introduction to Power Electronics (Essential Electronics Series)Building on solid state device and electromagnetic contributions to the series, this text book introduces modern power electronics, that is the application of semiconductor devices to the control and conversion of electrical power. The increased availability of solid state power switches has created a very rapid expansion in applications, from the... | | Firewall Policies and VPN ConfigurationsDeploying a network security policy is a significant and serious undertaking. Making good decisions in this matter will save a great deal of money and prevent many future security issues on your network, while making incorrect or hasty decisions will lay the foundation for an insecure network infrastructure. Creating a network security policy will... | | Implementing 802.1X Security Solutions for Wired and Wireless NetworksWhen deploying a wireless or wired network, you must ensure that proper security safeguards are put in place. An enterprise, for example, often has valuable resources stored inside databases that are attached to the network. Using passwords to access specific applications is usually not good enough to keep hackers from accessing the resources in an... |
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