Adaptive load balance techniques in parallel rarefied gas simulations

摘要

The paper presents some adaptive load balance techniques for the simula- tion of rarefied gas flows on parallel computers. It is shown that a static load balance is insufficient to obtain a scalable parallel efficiency. Hence, two adaptive techniques are investigated which are based on simple algorithms. Numerical results show that using heuristic techniques one can achieve a Sufficiently high efficiency over a wide rage of different hardware platforms.