Abstract
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.
Original language | English |
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Pages (from-to) | 101-105 |
Number of pages | 5 |
Journal | Computers and Fluids |
Volume | 46 |
Issue number | 1 |
Early online date | 4 Nov 2010 |
DOIs | |
Publication status | Published - Jul 2011 |
Keywords
- interface tracking
- high-order schemes
- GPU