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Parallel rotor wake simulation on multicore architectures with GPGPU accelerators using OpenACC

Basermann, Achim and Röhrig-Zöllner, Melven and Hofmann, Johannes (2014) Parallel rotor wake simulation on multicore architectures with GPGPU accelerators using OpenACC. 2014 Conference on Parallel Processing for Scientific Computing, 18.-21. Feb. 2014, Portland, Oregon, USA.

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Abstract

The Freewake code from the DLR Institute of Flight Systems simulates the 3d flow around a rotor of a helicopter under active control. It is based on a vortex approach with models for special features of the rotor flow. The method is very well suited for massive parallelism, because the velocity needs to be accumulated independently for each node of the mesh. We will present porting of the existing MPI-parallel implementation to GPGPUs using OpenACC and analyze the performance of hybridly parallelized calculations on multicore CPUs with GPGPU accelerators.

Item URL in elib:https://elib.dlr.de/87032/
Document Type:Conference or Workshop Item (Speech)
Title:Parallel rotor wake simulation on multicore architectures with GPGPU accelerators using OpenACC
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Basermann, Achimachim.basermann (at) dlr.deUNSPECIFIED
Röhrig-Zöllner, MelvenMelven.Roehrig-Zoellner (at) dlr.deUNSPECIFIED
Hofmann, JohannesJohannes.Hofmann (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Rotor Wake Simulation, Multicore CPU, GPGPU, OpenACC, Load Balancing, Performance, Numerical Algorithms
Event Title:2014 Conference on Parallel Processing for Scientific Computing
Event Location:Portland, Oregon, USA
Event Type:international Conference
Event Dates:18.-21. Feb. 2014
Organizer:Society for Industrial and Applied Mathematics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben SISTEC
Location: Braunschweig , Köln-Porz
Institutes and Institutions:Institute of Flight Systems
Institute of Flight Systems > Rotorcraft
Institut of Simulation and Software Technology
Institut of Simulation and Software Technology > Distributed Systems and Component Software
Deposited By: Basermann, Dr.-Ing. Achim
Deposited On:23 Dec 2013 11:15
Last Modified:08 May 2014 23:26

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