Understanding the parallel scalability of an implicit unstructured mesh CFD code
Conference
·
OSTI ID:764251
In this paper, the authors identify 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 authors discuss the basic performance characteristics of this PDE code with the help of simple performance models developed in their 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) they strive to improve the implementation and convergence scalability of PETSc-FUN3D on thousands of processors.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 764251
- Report Number(s):
- ANL/MCS/CP-102789; TRN: US200304%%202
- Resource Relation:
- Conference: HiPC 2000, Bangalore (IN), 12/17/2000--12/20/2000; Other Information: PBD: 6 Sep 2000; PBD: 6 Sep 2000; PBD: 6 Sep 2000
- Country of Publication:
- United States
- Language:
- English
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