The term "campus bridging" was first used in the charge given to an NSF Advisory Committee for Cyberinfrastructure task force. That task force developed this description of campus bridging: "Campus bridging is the seamlessly integrated use of cyberinfrastructure operated by a scientist or engineer with other cyberinfrastructure on the scientist's campus, at other campuses, and at the regional, national, and international levels as if they were proximate to the scientist, and when working within the context of a Virtual Organization (VO) make the 'virtual' aspect of the organization irrelevant (or helpful) to the work of the VO."Campus bridging is more a viewpoint and a set of approaches to usability, software, and information concerns than a particular set of tools or software. We outline here several specific use cases that have been identified as priorities for XSEDE in the next four years. These priorities include documentation, deployment of software used entirely outside of XSEDE, and software that helps bridge from individual researcher to campus to XSEDE cyberinfrastructure. We also describe early pilot tests and means by which the user community may stay informed of campus bridging activities and participate in the implementation of Campus Bridging tools created by XSEDE. Metrics are still being developed, and will include (1) the number of campuses that adopt and use Campus Bridging tools developed by XSEDE and(2) the number of and extent to which XSEDE-developed Campus Bridging tools are adopted among other CI projects.
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It is difficult for large research facilities to quantify a return on the investments that fund their operations. This is because there can be a time lag of years or decades between an innovation or discovery and the realization of its value through practical application. This report presents a three-part methodology that attempts to assess the value of federal investment in XSEDE: 1) a qualitative examination of the areas where XSEDE adds value to the activities of the open research community, 2) a "thought model" examining the cost avoidance realized by the National Science Foundation (NSF) through the centralization and coordination XSEDE provides, and 3) an assessment of the value XSEDE provides to Service Providers in the XD ecosystem. XSEDE adds significantly to the US research community because it functions as a unified interface to the XD ecosystem and because of its scale. A partly quantitative, partly qualitative analysis suggests the Return on Investment of NSF spending on XSEDE is greater than 1.0, indicating that the aggregate value received by the nation from XSEDE is greater than the cost of direct federal investment in XSEDE.
Abstract-We describe the use of the Jetstream research-cloud, a purpose-built system with the goal of supporting "long-tail" research by providing a flexible, on-demand research infrastructure, to provide scalable back-end resources for science gateways. In addition to providing cloud-like resources for on-demand science, Jetstream offers the capability to instantiate long-running clusters which support science gateways. Science gateways are web-based systems built on computational infrastructure which provide commonly-used tools to a community of users. We created a persistent cluster on the Jetstream system which is connected to the SEAGrid science gateway and provides additional compute resources for a variety of quantum chemistry calculations. We discuss the further application of toolkits provided by the Extreme Science and Engineering Discovery Environment (XSEDE) to build general-purpose clusters on the research cloud.
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