论文标题
整体和固定解决方案解决方案问题的平行效率
Parallel efficiency of monolithic and fixed-strain solution strategies for poroelasticity problems
论文作者
论文摘要
孔隙弹性是耦合过程的一个示例，对于许多应用至关重要，包括放射性废物存储库的安全评估。通过有限体积离散的毛弹性问题的数值解 - 虚拟元素方案导致代数方程的系统，可以同时或迭代地求解。在这项工作中，检查了整体策略和固定策略的并行可伸缩性，这主要取决于线性求解器性能。可以预期，由于在结构更简单的系统上，黑盒线性求解器的性能更好，因此分裂策略将显示出更好的可伸缩性。但是，情况并非总是如此。
Poroelasticity is an example of coupled processes which are crucial for many applications including safety assessment of radioactive waste repositories. Numerical solution of poroelasticity problems discretized with finite volume -- virtual element scheme leads to systems of algebraic equations, which may be solved simultaneously or iteratively. In this work, parallel scalability of the monolithic strategy and of the fixed-strain splitting strategy is examined, which depends mostly on linear solver performance. It was expected that splitting strategy would show better scalability due to better performance of a black-box linear solver on systems with simpler structure. However, this is not always the case.
