Marine 2015

The elbe team will present several elbe-related results at the sixth Conference on Computational Methods in Marine Engineering (Marine 2015) in Rome. Both talks are scheduled in the CFD II session on Wednesday morning:

Wednesday, June 17th
09:30 – 10:40
Numerical Methods in CFD II

GPU-Accelerated Large-Eddy Simulation of Ship-Ice Interactions
D. Mierke, C.F. Janßen and T. Rung

A next-generation CFD tool for large-eddy simulations on the Desktop
C.F. Janßen, N. Koliha and T. Rung

Moreover, there will be three other talks from our FDS team: Prof. Rung will kick off the conference with a keynote on “Predictive Prospects of Marine-Engineering Simulations” (Monday, 09:00 – 09:45). Wibke Wriggers will talk about “Numerical Modelling of Granular Cargo on Bulk Carriers in Seaway” (Tuesday, 09:30 – 10:40) and Svenja Völkner will present “An overset-grid three-phase flow model for offshore operations” (Wednesday, 11:10 – 13:00).

HANNOVER MESSE 2015

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Meine beiden Vorträge im Rahmen des CAE-Forums auf der HANNOVER MESSE 2015 zu den Themen

“Rechnen auf Grafikkarten – die Zukunft im simulationsgestützten Entwurfsprozess?”

“Vorstellung der Ergebnisse der Umfrage ‘Computing’ (CPU, GPU, HPC und Cloud)”

waren ein voller Erfolg. Der erste Talk befasste sich mit Chancen und Herausforderungen des Einsatzes von Grafikkarten im simulationsgestützten Entwurfsprozess und beinhaltete neben einer kritischen Reflexion der Einsetzbarkeit kommerzieller Softwarelösungen auch die Entwicklungskonzepte und Potentiale unseres hauseigenen Software-Prototypen elbe. Im zweiten Talk ging es um die Ergebnisse einer Meinungsumfrage, die u.a. den im Simulationsbereich vorhandenen Bedarf an High Performance Computing adressierte. Im Speziellen wurden mögliche Konzepte zur Deckung dieses Bedarf diskutiert und zwei Lösungen, Cloud Computing oder GPU-gestützte Beschleunigung, gegenübergestellt.

Weitere Informationen zum CAE-Forum, der Kommunikations- und Netzwerk-Plattform für Simulationsexperten, auf http://www.cae-forum.de .

Sieger der TUHH Startup Spirit-Projekte gekürt

StartupSpirit2015

Die von meinem Team untersuchte Geschäftsidee zu “Supercomputing on the Desktop” wurde im Rahmen des TUHH Startup Spirit Praxisprojekts ausgezeichnet.

Auszüge aus dem Newsletter des TUHH Startup Docks:

And the winner is… „Supercomputing on the desktop” von Dr. Christian Janßen (2.v.l.) vom TUHH-Institut für Schifftheorie und Fluiddynamik mit seinem Studententeam (v.l.) Katharina Kharkevitch, Fabian Schwarz, Jan Schekatz und Vincent Mayer.

Beim ersten Durchgang des Startup Spirit-Praxisprojekts setzten sich die Fünf im vergangenen Wintersemester unter 36 Projektteams mit insgesamt 212 teilnehmenden Bacherlorstudenten durch. Hinter ihrer Idee steckt eine Hardware-Software-Kombination, die unter anderem die eigens geschriebene innovative „Elbe-Software“ enthält. Diese ermöglicht Kunden, numerische Simulationen in kurzer Berechnungszeit und zu kostengünstigen Konditionen zu berechnen. Im Rahmen der Vorlesungsreihe „Grundlagen der Betriebswirtschaftslehre“ hatten Bachelorstudierende am TUHH Institute of Entrepreneurship (TIE) die Möglichkeit Geschäftsmodelle für reale Gründer zu entwickeln.

Als weiteres ‚Schmankerl’ für die Studierenden stellt Dr. Christian Janßen die Ergebnisse des Projekts im Rahmen des CAE-Forums, der Kommunikations- und Netzwerk-Plattform für Simulationsexperten, auf der Hannover Messe vor.

Hamburg University of Technology named NVIDIA CUDA Research Center

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Hamburg, Germany — January 8, 2015 — Hamburg University of Technology (TUHH) today announced that it has been named a CUDA® Research Center by NVIDIA, the world leader in visual computing.

The CUDA parallel programming model is an important element of the NVIDIA accelerated computing platform, the leading platform for accelerating data analytics and scientific computing. CUDA enables programmers to achieve dramatic increases in computing performance by harnessing the power of NVIDIA® GPU accelerators.

CUDA Research Centers are institutions that embrace and utilize GPU-accelerated computing across multiple research fields, and are at the forefront of some of the world’s most innovative and important scientific research. Hamburg University of Technology (TUHH) was recognized for its advanced research in computational fluid dynamics at the Institute for Fluid Dynamics and Ship Theory using GPU accelerators. Emphasis is put on Lattice Boltzmann simulations of two-phase flows in conjunction with dynamic overset grids for multiple floating bodies. Applications are primarily marine and ocean engineering oriented, e.g. simulation based early Tsunami warning systems or ice-going ship operations.

Supercomputing on the Desktop offers a new arena for the application of simulation based sciences to a broad range of future challenges, and might have a substantial social and economic impact, says Prof. Garabed Antranikian, President of the TUHH. This designation recognizes the excellence of TUHH at the scientific interplay between engineering, computer science and applied mathematics.

Research is aiming at near real-time simulations and online data exploration using GPU accelerator technology to derive next generation kinetic flow solvers. The vision of the Computational Fluid Dynamics team is to participate in the paradigm shift from traditional mainframes towards office supercomputing.
As a CUDA Research Center, TUHH will have pre-release access to NVIDIA GPU hardware and software, the opportunity to attend exclusive events with key researchers and academics, a designated NVIDIA technical liaison, and access to specialized online and in-person training sessions.

About Hamburg University of Technology (TUHH)
Hamburg University of Technology (TUHH) is one of Germany’s youngest and most successful research driven universities. Plans for a university of technology in the Süderelbe area of Hamburg go back to the 1920s. Fifty years later, in 1978, the Hamburg University of Technology came into being. Now, the TUHH has around 100 professors and 1,150 employees. TUHH is a competitive entrepreneurial university focussing on high-level performance and high quality standards. It is dedicated to the principles of Humboldt (unity of research and education) and aims at excellence at the international level in its strategic engineering research fields.

The CUDA Research Center at TUHH is associated with the Institute for Fluid Dynamics and Ship Theory (FDS) and the CUDA-accelerated flow solver elbe.

For further information, contact:

Dr.-Ing. Christian F. Janßen
Institute for Fluid Dynamics & Ship Theory
(+49) 40 / 42878 – 6040
christian.janssen@tuhh.de
http://www.tuhh.de/elbe

Prof. Dr.-Ing. Thomas Rung
Institute for Fluid Dynamics & Ship Theory
(+49) 40 / 42878 – 6054
thomas.rung@tuhh.de
http://www.tuhh.de/fds

Beitrag im DIGITAL ENGINEERING Magazin 08-2014

Unser Beitrag zum Einsatz von Grafikkartenhardware im automobilen Entwurfsprozess im DIGITAL ENGINEERING Magazin ist jetzt erschienen.

Realitätsprüfung – GPU-Computing in der Automobilentwicklung
Christian F. Janßen and Thorsten Grahs, DIGITAL ENGINEERING Magazin 08-2014, Oktober/November 2014

DEM_08_2014

ONC Tsunami Workshop 2014

In March 2014, 50 years after the 1964 Alaska earthquake and Tsunami, Ocean Networks Canada organized a two-day technical workshop on Tsunami modeling. The workshop covered advanced modeling and prediction technologies for real-time Tsunami forecasting, detection and alerts. In this context, I presented the potential of the elbe solver for efficient and accurate simulations of wave impact and wave-structure interactions in complex three-dimensional topologies, which can be a valuable contribution to Tsunami warning systems in British Columbia.

Further details and the workshop agenda can be found at ONC Tsunami Workshop 2014.

ONC_Tsunami_Workshop_2014

Non-uniform grids in elbe

We recently tested and implemented a grid refinement strategy in the LBM solver elbe. First, the concept was tested in the two-dimensional singlephase module elbeSP2D. The velocity field of a 2D Karman Vortex Street at Re 500 is shown below. After a proper validation of the grid coupling, the interpolation routines will be included in all the remaining elbe modules, including those for free surface and multiphase flows.

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elbe team @ GACM 2013

The elbe team will present the latest advances in the field of visualization and fluid-structure interaction at the 5th GACM Colloquium on Computational Mechanics (GACM 2013):

Monday, 15:20 – 15:40:
Nagrelli, Heinrich: GPGPU-accelerated simulation of wave-ship interactions using LBM and a quaternion-based motion modeler

Tuesday, 13:30 – 13:50
Koliha, Nils: Efficient Grid Generation and On Device Visualization for Massively Parallel GPU Accelerated Lattice Boltzmann CFD Simulations

Monday, 18:10, Poster Session
Koliha, Nils: Efficient Grid Generation and On Device Visualization for Massively Parallel GPU Accelerated Lattice Boltzmann CFD Simulations (Poster/Live Demo)

Moreover, this year’s symposium on Fluid Mechanics is organized by Christian Janßen and Thomas Rung (symposium #12, GACM web page). The symposium features 18 talks in four sessions on Hybrid Methods, the Lattice Boltzmann Method, Optimization, and FEM and ACM. It will take place on Tuesday and Wednesday from 10:30 to 12:10 and from 13:30 to 15:10 in building N, room 0.007 (campus map).