Big PanDA workflow management on Titan for high energy and nuclear physics and for future extreme scale scientific applications

Achieving operational goals is an important step towards enabling the convergence of HPC and HTC paradigms for a range of application types and communities. In meeting these goals, we develop both practical experience as well conceptual insight into some of the challenges which will ultimately help ASCR devise a working plan of engagement and support with science applications from other DOE offices. These include but are not limited to supporting diverse use-cases and requirements, sharing workloads across HTC and HPC resources, and investigating the operational implications of running traditional HTC workloads on HPC resources.