Task assignment heuristics for parallel and distributed CFD applications | Zendy

N. Lopez-Benitez | Zendy; M. Jahed Djomehri | Zendy; Rupak Biswas | Zendy

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Task assignment heuristics for parallel and distributed CFD applications

Author(s) -

N. Lopez-Benitez,

M. Jahed Djomehri,

Rupak Biswas

Publication year - 2007

Publication title -

international journal of computational science and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.291

H-Index - 21

eISSN - 1742-7193

pISSN - 1742-7185

DOI - 10.1504/ijcse.2007.015745

Subject(s) - heuristics , computational fluid dynamics , grid , computer science , workload , task (project management) , block (permutation group theory) , distributed computing , mathematical optimization , simulation , mathematics , engineering , aerospace engineering , geometry , systems engineering , operating system

A Task Graph (TG) model is proposed for representing a single discrete step of multi-block overset grid Computational Fluid Dynamics (CFD) applications. The TG model is used to balance the computational workload across the overset grids and to reduce inter-grid communication costs. Based on the constraints inherent in CFD applications, assignment heuristics are developed and enhanced by integrating the status of processing units and communication costs. Extensive performance evaluation on a synthetic TG is reported. Also, a TG derived from a realistic problem with eight million grid points is used as a test case.

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