Optimising the Parallelisation of OpenFOAM Simulations

reportActive / Technical Report | Accession Number: ADA612337 | Open PDF

Abstract:

The OpenFOAM computational fluid dynamics toolbox allows parallel computation of fluid dynamics simulations on a theoretically unlimited number of processor cores. The software utilises a message passing interface MPI library in order to facilitate communication between parallel processes as the computation is completed. In order to maximise the parallel efficiency of the computation, the way in which the MPI application distributes the problem among the processors needs to be optimised. This report examines the performance of a given high performance computing cluster with several OpenFOAM cases, running using a combination of MPI libraries and corresponding MPI flags. The effect of hardware variations on the speed of the computation is also briefly investigated. The results show a noticeable improvement in simulation time when certain flags are given to the MPI library in order to control the binding and distribution of processes amongst the cluster.

Author(s):
Keough, Shannon
Author Organization(s):
DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION FISHERMANS BEND (AUSTRALIA) MARITIME DIV
Descriptive Note:
Technical rept.
Pagination:
0048

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DSTO-TR-2987, DODA-AR-015-993
Monitor Series:
AR-015-993, DSTO/MD
 Subject Terms
Joint Capability Areas:
JCA_2_Battlespace Awareness; JCA_2.3_Processing and Exploitation; JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_5_Command and Control; JCA_6.2.3_Core Enterprise Services; JCA_1.2_Force Preparation; JCA_6.2_Enterprise Services
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*COMPUTATIONAL FLUID DYNAMICS, AUSTRALIA, HIGH PERFORMANCE COMPUTING, PARALLEL PROCESSING
Field(s)/Group(s):
Computer Programming and Software, Computer Hardware, Fluid Mechanics
Keyword(s):
FOREIGN REPORTS, OPENFOAM COMPUTER PROGRAM
Report Date:
2014 Jun 01
Creation Date:
2015 Feb 02