| Publisher | Old Dominion University | ||
|---|---|---|---|
| Format | 56.2KB PDF | Date added | 05 Sep 2000 |
| Topics | |||
| Downloads | 0 | ||
This paper identifies the scalability bottlenecks of an unstructured grid CFD code (PETSc-FUN3D) by studying the impact of several algorithmic and architectural parameters and by examining different programming models. The paper discusses the basic performance characteristics of this PDE code with the help of simple performance models developed in the earlier work, presenting primarily experimental results. In addition to achieving good per-processor performance (which has been addressed in the cited work and without which scalability claims are suspect) the authors strive to improve the implementation and convergence scalability of PETSc-FUN3D on thousands of processors.
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