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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may(More)
Data management is growing in complexity as large-scale applications take advantage of the loosely coupled resources brought together by grid middleware and by abundant storage capacity. Metadata describing the data products used in and generated by these applications is essential to disambiguate the data and enable reuse. Data provenance, one kind of(More)
This paper describes work in progress to develop a standard for interoperability among high-performance scientific components. This research stems from growing recognition that the scientific community needs to better manage the complexity of multidisciplinary simulations and better address scalable performance issues on parallel and distributed(More)
Funded by the National Science Foundation (NSF), TeraGrid is one of the world's largest distributed cyberinfrastructures for open scientific research. The project began in 2001 as the Distributed Tera-scale Facility, which linked computers, visualization systems, and data at four sites through a dedicated 40-gigabit optical network. Today TeraGrid includes(More)
Workflows have emerged as a paradigm for representing and managing complex distributed computations and are used to accelerate the pace of scientific progress. A recent National Science Foundation workshop brought together domain, computer, and social scientists to discuss requirements of future scientific applications and the challenges they present to(More)
TeraGrid is a national-scale computational science facility supported through a partnership among thirteen institutions, with funding from the US National Science Foundation [1]. Initially created through a Major Research Equipment Facilities Construction (MREFC [2]) award in 2001, the TeraGrid facility began providing production computing, storage,(More)
In this paper we describe a method for using data dependence analysis to estimate cache and local memory demand in highly iterative scientific codes. The estimates take the form of a family of " reference " windows for each variable that reflects the current set of elements that should be kept in cache. It is shown that, in important special cases, we can(More)
A Web services-based publish/subscribe system has the potential to create an Internet scale interoperable event notification system which is important for grid computing as it evolves a service-oriented architecture. WS-Messenger is designed to be a Web services-based message broker that can decouple event producers and event consumers and achieve scalable,(More)
Grid computing is about allocating distributed collections of resources including computers, storage systems, networks and instruments to form a coherent system devoted to a " virtual organization " of users who share a common interest in solving a complex problem or building an efficient agile enterprise. Service oriented architectures have emerged as the(More)