Implementation and Optimization of a CFD Solver Using Overlapped Meshes on Multiple MIC Coprocessors

In this paper, we develop and parallelize a CFD solver that supports overlapped meshes on multiple MIC architectures by using multithreaded technique. We optimize the solver through several considerations including vectorization, memory arrangement, and an asynchronous strategy for data exchange on...

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Bibliographic Details
Published in:Scientific programming Vol. 2019; no. 2019; pp. 1 - 12
Main Authors: Ma, Wenpeng, Hu, Xiaodong, Yuan, Wu
Format: Journal Article
Language:English
Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2019
Hindawi
John Wiley & Sons, Inc
Subjects:
Algorithms
Architectural engineering
Automation
Codes
Computational physics
Coprocessors
Data exchange
Electronic devices
Finite volume method
Fluid dynamics
Investigations
Microprocessors
Numerical analysis
Optimization
Optimization techniques
Researchers
Simulation
ISSN:1058-9244, 1875-919X
Online Access:Get full text
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Summary:In this paper, we develop and parallelize a CFD solver that supports overlapped meshes on multiple MIC architectures by using multithreaded technique. We optimize the solver through several considerations including vectorization, memory arrangement, and an asynchronous strategy for data exchange on multiple devices. Comparisons of different vectorization strategies are made, and the performances of core functions of the solver are reported. Experiments show that about 3.16x speedup can be achieved for the six core functions on a single Intel Xeon Phi 5110P MIC card, and 5.9x speedup can be achieved using two cards compared to an Intel E5-2680 processor for two ONERA M6 wings case.
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ISSN:1058-9244
1875-919X
DOI:10.1155/2019/4254676