Improving Unstructured Mesh Partitions for Multiple Criteria Using Mesh Adjacencies

Improving Unstructured Mesh Partitions for Multiple Criteria Using Mesh Adjacencies

The scalability of unstructured mesh based applications depends on partitioning methods that quickly balance the computational work while reducing communication costs. Zhou et al. demonstrated the combination of (hyper)graph methods with vertex and element partition improvement for PHASTA computational fluid dynamics scaling to hundreds of thousands of processes. Our work generalizes partition ...

Parallel Unstructured Mesh Partitioning

Scalable Unstructured Mesh Decomposition

As the e ciency of parallel software increases it is becoming common to measure near linear speedup for many applications. For a problem size N on P processors then with software running at O(N=P ) the performance restrictions due to le i/o systems and mesh decomposition running at O(N) become increasingly apparent especially for large P . For distributed memory parallel systems an additional l...

76 Parallel Unstructured Mesh

The use of unstructured mesh codes on parallel machines can be one of the most e cient ways to solve large Computational Fluid Dynamics (CFD) and Computational Mechanics (CM) problems. Completely general geometries and complex behaviour can readily be modelled and, in principle, the inherent sparsity of many such problems can be exploited to obtain excellent parallel e ciencies. An important co...

Unstructured Mesh Generation

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