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Achieving High Speed CFD simulations: Optimization, Parallelization, and FPGA Acceleration for the unstructured DLR TAU Code

Andres-Perez, Esther and Widhalm, Markus and Caloto, Aitor (2009) Achieving High Speed CFD simulations: Optimization, Parallelization, and FPGA Acceleration for the unstructured DLR TAU Code. AIAA 47th Aerospace Science Meeting, [2009-01-05 - 2009-01-08] AIAA-2009-0759, Orlando, FL (USA).

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Abstract

Today, large scale parallel simulations are fundamental tools to handle complex problems. The number of processors in current computation platforms has been recently increased and therefore it is necessary to optimize the application performance and to enhance the scalability of massively-parallel systems. In addition, new heterogeneous architectures, combining conventional processors with specific hardware, like FPGAs, to accelerate the most time consuming functions are considered as a strong alternative to boost the performance. In this paper, the performance of the DLR TAU code is analyzed and optimized. The improvement of the code efficiency is addressed through three key activities: Optimization, parallelization and hardware acceleration. At first, a profiling analysis of the most time-consuming processes of the Reynolds Averaged Navier Stokes flow solver on a three-dimensional unstructured mesh is performed. Then, a study of the code scalability with new partitioning algorithms are tested to show the most suitable partitioning algorithms for the selected applications. Finally, a feasibility study on the application of FPGAs and GPUs for the hardware acceleration of CFD simulations is presented.

Item URL in elib:https://elib.dlr.de/57896/
Document Type:Conference or Workshop Item (Paper)
Title:Achieving High Speed CFD simulations: Optimization, Parallelization, and FPGA Acceleration for the unstructured DLR TAU Code
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Andres-Perez, EstherINTAUNSPECIFIED
Widhalm, MarkusUNSPECIFIEDUNSPECIFIED
Caloto, AitorINTAUNSPECIFIED
Date:January 2009
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Code Optimization, Grid Partitioning, Parallelization, Hardware Acceleration, FPGA, GPU, TAU
Event Title:AIAA 47th Aerospace Science Meeting
Event Location:Orlando, FL (USA)
Event Type:international Conference
Event Dates:[2009-01-05 - 2009-01-08] AIAA-2009-0759
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Widhalm, Markus
Deposited On:29 Jan 2009
Last Modified:31 Jul 2019 19:24

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