Architecture Specific Communication Optimizations for Structures Adaptive Mesh-Refinement Applications

Dynamic Structured Adaptive Mesh Refinement (SAMR) techniques for solving partial differential equations provide a means for concentrating computational effort to appropriate regions in the computational domain. Parallel implementations of these techniques typically partition the adaptive heterogeneous grid hierarchy across available processors, and each processor operates on its local portions of this domain in parallel. However, configuring and managing the execution of these applications presents significant challenges in resource allocation, data-distribution and load balancing, communication and coordination, and runtime management. Due to their irregular load distributions and communication requirements across levels of the grid hierarchy, parallel SAMR applications make extensive use of non-blocking MPI primitives to reduce synchronization overheads. The behavio