Abstract: The Grid Laboratory Of Wisconsin (GLOW) is a NSF funded, distributed facility at the University of Wisconsin, Madison campus. It consists of more than 1600 CPUs and 100 TB of storage that are located at six different sites and serve a broad range of disciplines ranging from Biotechnology and Computer Sciences to Medical-Physics and Economics. Each of the GLOW sites is configured as an autonomous locally managed Condor pool that can operate independently when disconnected from the other sites. Under normal conditions, the six pools act like a single Condor system that is coordinated via a highly-available campus-wide matchmaking service. On-campus and of-campus users interact with GLOW through job-managers located on their desktop computers.

The Open Science Grid (OSG) is a DOE and NSF funded US national distributed computing facility that supports scientific computing via an open collaboration of science researchers, software developers and computing, storage and network providers. The OSG Consortium is building and operating the OSG, bringing resources and researchers from universities and national laboratories together and cooperating with other national and international infrastructures to give scientists access to shared resources worldwide. The particular characteristics of the OSG are to: Provide guaranteed and opportunistic access to shared resources; Operate a heterogeneous environment both in services available at any site and for any Virtual Organization, and multiple implementations behind common interfaces; Support multiple software releases at any one time; Interface to Campus and Regional Grids; Federate with other national and international Grids.

In the talk, we will provide an overview of these two cyber-infrastructures and present the capabilities we implemented and deployed to 'elevate' local GLOW jobs to the national OSG infrastructure. These capabilities support a 'bottom-up' approach to the construction and operation of large scale distributed/grid computing infrastructure.

Short Bio: Miron Livny received a B.Sc. degree in Physics and Mathematics in 1975 from the Hebrew University and M.Sc. and Ph.D. degrees in Computer Science from the Weizmann Institute of Science in 1978 and 1984, respectively. Since 1983 he has been on the Computer Sciences Department faculty at the University of Wisconsin-Madison, where he is currently a Professor of Computer Sciences, the director of the Center for High Throughput Computing and is leading the Condor project.

Dr. Livny's research focuses on distributed processing and data management systems and data visualization environments. His recent work includes the Condor distributed resource management system, the DEVise data visualization and exploration environment and the BMRB repository for data from NMR spectroscopy.