Higher-order CFD and Interface Tracking Methods on Highly-Parallel MPI and GPU systems
Fluid Mechanics and Computational Science Department, Cranfield University, United Kingdom
Computers & Fluids (04 November 2010)
@article{appleyard2010higher,
title={Higher-order CFD and Interface Tracking Methods on Highly-Parallel MPI and GPU systems},
author={Appleyard, J. and Drikakis, D.},
journal={Computers & Fluids},
issn={0045-7930},
year={2010},
publisher={Elsevier}
}
A computational investigation of the effects on parallel performance of higher-order accurate schemes was carried out on two different computational systems: a traditional CPU based MPI cluster and a system of four Graphics Processing Units (GPUs) controlled by a single quad-core CPU. The investigation was based on the solution of the level set equations for interface tracking using a High-Order Upstream Central (HOUC) scheme. Different variants of the HOUC scheme were employed together with a 3rd order TVD Runge-Kutta time integration. An increase in performance of two orders of magnitude was seen when comparing a single CPU core to a single GPU with a greater increase at higher orders of accuracy and at lower precision.
November 22, 2010 by hgpu
