Real-Time Applications



Peter Clarke and Colin Greenwood, National e-Science Centre, Edinburgh, UK, peter.clarke @, coling @
Richard Hughes-Jones, University of Manchester, UK, R.Hughes-Jones @

Collaborators ESLEA:
National e-Science Centre, Edinburgh, UK: Peter Clarke, Colin Greenwood
University of Manchester, UK: Richard Hughes-Jones, Stephen Pickles, Robin Pinning, Ralph Spencer
University College London, UK: Peter Coveney, Shantenu Jha

Other Collaborators:
UKERNA/UKLight/ULCC, UK: David Salmon, John Graham
Argonne National Laboratory, USA: Linda Winkler
Stanford Linear Accelerator Center (SLAC), USA: Les Cottrell
JIVE, NL: Arpad Szomoru
Westerbork Observatory, ASTRON, NL: Tony Foley
Jodrell Bank, UK: Paul Burgess
MIT Haystack, USA: Alan Whitney, Chester Ruszczyk
Onsala, Sweden: Rüdiger Haas, Michael Olberg

The UK e-Science ESLEA (Exploitation of Switched Lightpaths for eScience Applications) project demonstrates the benefits of switched lightpaths for scientific applications using UKLight. At iGrid, UKLight is used to move data for three e-science disciplines: high-energy physics, computational science, and radio astronomy. In the high-energy physics application demonstration, data is moved at gigabit speeds between disk servers in the UK and on the iGrid floor. Visualizations of the transfers show real-time analysis of the transport protocols and also insight into the operation of the computer buses themselves as the data is moved. In the computational science demonstration, the RealityGrid steering framework is used with SPICE (Simulated Pore Interactive Computing Experiment), to show how a researcher can perform simulation and visualization of complex condensed matter, running at meso- and nano-scales, on high-performance machines at the University of Manchester and the TeraGrid at the Pittsburgh Supercomputer Center. This work is helping scientists understand DNA translocation across protein nano-pores in lipid membranes. In addition to this presentation, ESLEA researchers are participating in the demonstration “Dynamic Provisioning Across Administrative Domains,” in which real-time radio astronomy data is transported from Jodrell Bank (UK), Onsala (Sweden) and Westerbork (Netherlands) to the correlator at MIT Haystack.