SC12 Home > SC12 Schedule > SC12 Presentation - Optimus: A Parallel Optimization Framework With Topology Aware PSO and Applications

SCHEDULE: NOV 10-16, 2012

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Optimus: A Parallel Optimization Framework With Topology Aware PSO and Applications

SESSION: ACM Student Research Competition Poster Session

EVENT TYPE: ACM Student Research Competition

TIME: 5:15PM - 7:00PM

SESSION CHAIR: Torsten Hoefler

AUTHOR(S):Sarat Sreepathi

ROOM:East Entrance

This research presents a parallel metaheuristic optimization framework, Optimus (Optimization Methods for Universal Simulators) for integration of a desired population-based search method with a target scientific application. Optimus includes a parallel middleware component, PRIME (Parallel Reconfigurable Iterative Middleware Engine) for scalable deployment on emergent supercomputing architectures. Additionally, we designed TAPSO (Topology Aware Particle Swarm Optimization) for network based optimization problems and applied it to achieve better convergence for water distribution system (WDS) applications. The framework supports concurrent optimization instances, for instance multiple swarms in the case of PSO. PRIME provides a lightweight communication layer to facilitate periodic inter-optimizer data exchanges. We performed scalability analysis of Optimus on Cray XK6(Jaguar) at Oak Ridge Leadership Computing Facility for the leak detection problem in WDS. For a weak scaling scenario, we achieved 84.82% of baseline at 200,000 cores relative to performance at 1000 cores and 72.84% relative to one core scenario.

Chair/Author Details:

Torsten Hoefler (Chair) - ETH Zurich

Sarat Sreepathi - North Carolina State University

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