Publication detail
On improving computational efficiency of simplified fluid flow models
TUREK, V.
English title
On improving computational efficiency of simplified fluid flow models
Type
journal article in Scopus
Language
en
Original abstract
Single-core computational efficiency of several iterative methods for numerical solution of nonsymmetric linear systems originating from simplified fluid flow models is evaluated together with different preconditioning techniques in terms of solution behaviour and the overall rate of convergence. A previously developed simplified 3D CFD model, which involves the solution of linear systems of orders usually from units to tens of thousands, is used to generate test cases. The respective Java software application employs the Parallel Colt linear algebra library. This is to ensure that the corresponding sparse matrix computations needed in different solution and preconditioning methods are carried out in as efficient a manner as possible to minimize the influence of the computer implementation itself. Measures (warm-up phase etc.) are taken to eliminate the effects of JVM-specific behaviour such as JIT compilation.
English abstract
Single-core computational efficiency of several iterative methods for numerical solution of nonsymmetric linear systems originating from simplified fluid flow models is evaluated together with different preconditioning techniques in terms of solution behaviour and the overall rate of convergence. A previously developed simplified 3D CFD model, which involves the solution of linear systems of orders usually from units to tens of thousands, is used to generate test cases. The respective Java software application employs the Parallel Colt linear algebra library. This is to ensure that the corresponding sparse matrix computations needed in different solution and preconditioning methods are carried out in as efficient a manner as possible to minimize the influence of the computer implementation itself. Measures (warm-up phase etc.) are taken to eliminate the effects of JVM-specific behaviour such as JIT compilation.
Keywords in English
preconditioning, CFD
Released
30.07.2018
Publisher
Aidic Servizi S.r.l.
Location
Milano, Italy
ISSN
2283-9216
Volume
70
Number
1
Pages from–to
1447–1452
Pages count
6
BIBTEX
@article{BUT149274,
author="Vojtěch {Turek},
title="On improving computational efficiency of simplified fluid flow models",
year="2018",
volume="70",
number="1",
month="July",
pages="1447--1452",
publisher="Aidic Servizi S.r.l.",
address="Milano, Italy",
issn="2283-9216"
}