Implementation of exascale asynchronous solvers for PDEs

Abstract eng:
To overcome the challenges likely to be present in exascale systems we recently developed novel asynchrony-tolerant numerical schemes for partial differential equations which relax the need for synchronization between processing elements at a mathematical level. The advantages of such schemes can only be realized if their implementation also aims at alleviating the limiting factors at exascale in terms of hardware, software, and programing frameworks. We present two such implementations with different degrees of asynchrony and their corresponding tradeoffs between numerical accuracy and performance. Analysis and numerical experiments demonstrate their respective potential to increase scalability of solvers in future exascale systems.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket