1Nektar, SPICE and Vortonics: Using Federated Grids for Large Scale Scientific Applications.

Abstract — A joint call for proposals was issued in late 2004- early 2005 by the US’s NSF and UK’s EPSRC for applications that aim to utilize the combined computational resources of the US and UK. In response to the call, three computational science groups from UCL, Tufts and Brown Universities teamed up with a middleware team from NIU/Argonne to meet the challenge. Successful demonstra-tions of these applications at SC05 established that not only can applications make effective use of resources that span computational grids but also underscored the need to run at the even larger scales of grids-of-grids. Although the groups had three distinct codes and aims, the projects had the underlying common feature that they were comprised of large-scale distributed applications which required high-end networking and advanced middleware i