Cybershake on opportunistic cyberinfrastructures
Allan Espinosa · Figshare · 2015
Continued improvements in provisioning capabilities of cyberinfrastructures increase the computational enablement of science such as the Cybershake application. Using workflow tools such as Swift and Pegasus, we observed how jobs are scheduled to exploit an expanded set of resources available in TeraGrid and Open Science Grid (OSG). Our tests on OSG gave 2000~CPUs in a day on an opportunistic basis. This was well within the time-to-solution requirements of the Cybershake application. However, there were potential bottlenecks in the data requirements of the application. In this paper, we characterize how the time-to-solution budget is spent by looking at the running time and file transfer time of the post-processing computation.