Imperial College London

ProfessorSpencerSherwin

Faculty of EngineeringDepartment of Aeronautics

Professor of Computational Fluid Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 5052s.sherwin Website

 
 
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Location

 

313BCity and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bolis:2016:10.1016/j.cpc.2016.04.011,
author = {Bolis, A and Cantwell, CD and Moxey, D and Serson, D and Sherwin, SJ},
doi = {10.1016/j.cpc.2016.04.011},
journal = {Computer Physics Communications},
pages = {17--25},
title = {An adaptable parallel algorithm for the direct numerical simulation of incompressible turbulent flows using a Fourier spectral/hp element method and MPI virtual topologies},
url = {http://dx.doi.org/10.1016/j.cpc.2016.04.011},
volume = {206},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - A hybrid parallelisation technique for distributed memory systems is investigated for a coupled Fourier-spectral/hp element discretisation of domains characterised by geometric homogeneity in one or more directions. The performance of the approach is mathematically modelled in terms of operation count and communication costs for identifying the most efficient parameter choices. The model is calibrated to target a specific hardware platform after which it is shown to accurately predict the performance in the hybrid regime. The method is applied to modelling turbulent flow using the incompressible Navier-Stokes equations in an axisymmetric pipe and square channel. The hybrid method extends the practical limitations of the discretisation, allowing greater parallelism and reduced wall times. Performance is shown to continue to scale when both parallelisation strategies are used.
AU - Bolis,A
AU - Cantwell,CD
AU - Moxey,D
AU - Serson,D
AU - Sherwin,SJ
DO - 10.1016/j.cpc.2016.04.011
EP - 25
PY - 2016///
SN - 1879-2944
SP - 17
TI - An adaptable parallel algorithm for the direct numerical simulation of incompressible turbulent flows using a Fourier spectral/hp element method and MPI virtual topologies
T2 - Computer Physics Communications
UR - http://dx.doi.org/10.1016/j.cpc.2016.04.011
UR - http://hdl.handle.net/10044/1/31266
VL - 206
ER -