Section: New Results

Toplogy-aware load balancing in Charm++

Charm++ implements a fine-grained paradigm based on migratable computing objects. This programming model is designed to run large-scale experiments and provide a dynamic load balancing system to optimize it. Our previous Charm++ load balancer designed for communication-bound applications was improved to scale on large platforms. More precisely, we worked on the network awareness of this algorithm by using LibTopoMap. Our topology-aware load balancing algorithm was also restructured to be parallel and distributed. These enhancements were validated on the Blue Waters supercomputer at Urbana-Champaign, IL. Finally, We have begun to carry out experiments on real application modeling seismic wave propagation.