Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


HPC System Hornet Ready to Serve Highest Computational Demands


HLRS Supercomputer Successfully Executed Extreme-Scale Simulation Projects

Supercomputer Hornet of the High Performance Computing Center Stuttgart (HLRS) is ready for extreme-scale computing challenges. The newly installed HPC system (High Performance Computing) successfully finished extensive simulation projects that by far exceeded the calibre of previously performed simulation runs at HLRS:

Der HLRS-Supercomputer Hornet, ein Cray XC40 System, liefert eine Rechenhöchstleistung von 3,8 Petaflops (3,8 Billiarden Rechenoperationen pro Sekunde).

(c) Boris Lehner für HLRS/Universität Stuttgart

Feinskalige Wolkenstrukturen des Taifuns Soulik, dargestellt mittels der langwelligen Ausstrahlung am Oberrand des Modells.

(c) Universität Hohenheim

Six so called XXL-Projects from computationally demanding scientific fields such as planetary research, climatology, environmental chemistry, aerospace, and scientific engineering were recently applied on the HLRS supercomputer. With each application scaling up to all of Hornet’s available 94,646 compute cores, the machine was put through a demanding endurance test. The achieved results more than satisfied the HLRS HPC experts as well as the scientific users: Hornet lived up to the challenge and passed the simulation “burn-in runs” with flying colors.

The new HLRS supercomputer Hornet, a Cray XC40 system which in its current configuration delivers a peak performance of 3.8 PetaFlops (1 PetaFlops = 1 quadrillion floating point operations per second), was declared “up and running” in late 2014.

In its early installation phase, prior to making the machine available for general use, HLRS had invited national scientists and researchers from various fields to apply large-scale simulation projects on Hornet. The goal was to deliver evidence that all related HPC hardware and software components required to smoothly run highly complex and extreme-scale compute jobs are up and ready for top-notch challenges. Six perfectly suited XXL-Projects were identified and implemented on the HLRS supercomputer:

(1) “Convection Permitting Channel Simulation”, Institute of Physics and Meteorology, Universität Hohenheim
(84,000 compute cores, 84 compute hours, 330 TB of data + 120 TB for pre-processing)
Objective: Run a latitude belt simulation around the Earth at a resolution of a few km for a time period long enough to cover various extreme events on the Northern hemisphere and to study the model performance.

(2) “Direct Numerical Simulation of a Spatially-Developing Turbulent Boundary Along a Flat Plate”, Institute of Aerodynamics and Gas Dynamics (IAG), Universität Stuttgart
(93,840 compute cores, 70 machine hours, 30 TB of data)
Objective: To conduct a direct numerical simulation of the complete transition of a boundary layer flow to fully-developed turbulence along a flat plate up to high Reynolds numbers.

(3) “Prediction of the Turbulent Flow Field Around a Ducted Axial Fan”, Institute of Aerodynamics, RWTH Aachen University
(92,000 compute cores, 110 machine hours, 80 TB of data)
Objective: To better understand the development of vortical flow structures and the turbulence intensity in the tip-gap of a ducted axial fan.

(4) “Large-Eddy Simulation of a Helicopter Engine Jet”, Institute of Aerodynamics, RWTH Aachen University
(94,646 compute cores, 300 machine hours, 120 TB of data)
Objective: Analysis of the impact of internal perturbations due to geometric variations on the flow field and the acoustic field of a helicopter engine jet.

(5) “Ion Transport by Convection and Diffusion“, Institute of Simulation Techniques and Scientific Computing, Universität Siegen
(94.080 compute cores, 5 machine hours, 1.1 TB of data)
Objective: To better understand and optimize the electrodialysis desalination process.

(6) “Large Scale Numerical Simulation of Planetary Interiors”, German Aerospace Center/Technische Universität Berlin
(54,000 compute cores, 3 machine hours, 2 TB of data)
Objective: To study the effect of heat driven convection within planets on the evolution of a planet (how is the surface influenced, how are conditions for life maintained, how do plate-tectonics work, and how quickly can a planet cool).

Demand for High Performance Computing on the Rise

Demand for High Performance Computing is unbroken. Scientists continue to crave for ever increasing computing power. They are eagerly awaiting the availability of even faster systems and better scalable software enabling them to attack and puzzle out the most challenging scientific and engineering problems. “Supply generates demand”, states Prof. Dr.-Ing. Michael M. Resch, Director of HLRS. “With the abilities of ultra-fast machines like Hornet both industry and researchers are quickly realizing that fully leveraging the vast capabilities of such a supercomputer opens unprecedented opportunities and helps them deliver results previously impossible to obtain. We are positive that our HPC infrastructure will be leveraged to its full extent. Hornet will be an invaluable tool in supporting researchers in their pursuit for answers to the most pressing subjects of today’s time, leading to scientific findings and knowledge of great and enduring value,” adds Professor Resch.


Following its ambitious technology roadmap, HLRS is currently striving to implement a planned system expansion which is scheduled to be completed by the end of 2015. The HLRS supercomputing infrastructure will then deliver a peak performance of more than seven PetaFlops (quadrillion mathematical calculations per second) and feature 2.3 petabytes of additional file system storage.

More information about the HLRS XXL-Projects can be found at

About HLRS: The High Performance Computing Center Stuttgart (HLRS) of the University of Stuttgart is one of the three German supercomputer institutions forming the national Gauss Centre for Supercomputing. HLRS supports German and pan-European researchers as well as industrial users with leading edge supercomputing technology, HPC trainings, and support.

About GCS: The Gauss Centre for Supercomputing (GCS) combines the three national supercom-puting centres HLRS (High Performance Computing Center Stuttgart), JSC (Jülich Supercomputing Centre), and LRZ (Leibniz Supercomputing Centre, Garching near Munich) into Germany’s Tier-0 supercomputing institution. Concertedly, the three centres provide the largest and most powerful supercomputing infrastructure in all of Europe to serve a wide range of industrial and research activities in various disciplines. They also provide top-class training and education for the national as well as the European High Performance Computing (HPC) community. GCS is the German member of PRACE (Partnership for Advance Computing in Europe), an international non-profit association consisting of 25 member countries, whose representative organizations create a pan-European supercomputing infrastructure, providing access to computing and data management resources and services for large-scale scientific and engineering applications at the highest performance level.
GCS has its headquarters in Berlin/Germany.

Andrea Mayer-Grenu | idw - Informationsdienst Wissenschaft
Further information:

Further reports about: Aerodynamics Computing HPC High Performance Computing Center RWTH Supercomputing TB

More articles from Information Technology:

nachricht Smart Computers
21.08.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht AI implications: Engineer's model lays groundwork for machine-learning device
18.08.2017 | Washington University in St. Louis

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>



Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Latest News

Cholesterol-lowering drugs may fight infectious disease

22.08.2017 | Health and Medicine

Meter-sized single-crystal graphene growth becomes possible

22.08.2017 | Materials Sciences

Repairing damaged hearts with self-healing heart cells

22.08.2017 | Life Sciences

More VideoLinks >>>