Stephen C. Simms

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The Grid2003 Project has deployed a multi-virtual organization, application-driven grid laboratory (" Grid3 ") that has sustained for several months the production-level services required by physics experiments of the Large Hadron Collider at CERN (ATLAS and CMS), the Sloan Digital Sky Survey project, the gravitational wave search experiment LIGO, the BTeV(More)
As part of the SCinet Research Sandbox at the Supercomputing 2011 conference, Indiana University (IU) demonstrated use of the Lustre high performance parallel file system over a dedicated 100 Gbps wide area network (WAN) spanning more than 3,500 km (2,175 mi). This demonstration functioned as a proof of concept and provided an opportunity to study Lustre's(More)
Cyberinfrastructure is a word commonly used but lacking a single, precise definition. One recognizes intuitively the analogy with <i>infrastructure</i>, and the use of <i>cyber</i> to refer to thinking or computing -- but what exactly is cyberinfrastructure as opposed to information technology infrastructure? Indiana University has developed one of the more(More)
As part of the SCinet Research Sandbox at the 2011 International Conference for High Performance Computing, Networking, Storage and Analysis (SC11), Indiana University utilized a dedicated 100 Gbps wide area network (WAN) link spanning more than 3,500 km (2,175 mi) to demonstrate the capabilities of the Lustre high performance parallel file system in a high(More)
The Indiana University Data Capacitor is a 535 TB distributed parallel filesystem constructed for short to mid term storage of large research data sets. Spanning multiple, geographically distributed compute, storage, and visualization resources and showing unprecedented performance across the wide area network, the Data Capacitor's Lustre filesystem can be(More)
Digital instruments and simulations are creating an ever-increasing amount of data. The need for institutions to acquire these data and transfer them for analysis, visualiza-tion, and archiving is growing as well. In parallel, networking technology is evolving, but at a much slower rate than our ability to create and store data. Single fiber 100 Gbps(More)
Astrophysical simulations of protoplanetary disks and gas giant planet formation are being performed with a variety of numerical methods. Some of the codes in use today have been producing scientifically significant results for several years, or even decades. Each must simulate millions of resolution elements for millions of time steps, capture and store(More)
The TeraGrid is an advanced cyberinfrastructure funded by the National Science Foundation. It offers computational, data, and storage resources to the U.S. scholarly community. With more than 870 teraflops of computing capability and more than 30 petabytes of online and archival storage, researchers across the nation can expand their research far beyond(More)