QPACE 2 is among the most powerful and energy-efficient supercomputers of the world
A new supercomputer prototype, QPACE 2, was recently installed and deployed in the computing center of Universität Regensburg. Its predecessor, the research computer QPACE, was the most energy-efficient supercomputer of the world at its time. QPACE stands for „QCD Parallel Computing Engine''.
The new supercomputer was developed by a group of scientists in the Physics Department of Universität Regensburg led by Prof. Dr. Tilo Wettig, in collaboration with the company Eurotech. It is being used for numerical simulations of quantum chromodynamics (QCD), one of the fundamental theories of elementary particle physics.
Although the QPACE 2 prototype is very small and fits in a single rack, it has a peak performance of 310 TFlop/s, i.e., 310 trillion floating-point operations per second. The system is water-cooled but does not need chilled water, which makes free cooling possible year-round. To achieve this goal a new technology was developed that also allows for a very high packaging and power density.
QPACE 2 is the second best Xeon Phi system on the Green500 list of the most energy-efficient supercomputers in the world and is ranked number 26 overall. It also made the Top500 list of the most powerful supercomputers in the world, where it ranks number 379.
QPACE 2 uses the Intel Xeon Phi processor (code name „Knights Corner'') with 61 compute cores. Within a rack, 256 of these processors are interconnected by a powerful network based on PCI Express and Infiniband.
The development of QPACE 2 was funded by the German research Foundation (DFG) in the framework of the Collaborative Research Center SFB/TRR-55 “Hadron physics from lattice QCD” at Universität Regensburg. The development of QPACE 3, which will use an improved version of the Xeon Phi processor (code name “Knights Landing”), is planned for next year.
Prof. Dr. Tilo Wettig
Institute for Theoretical Physics
Tel.: 0941 943-2004
Alexander Schlaak | idw - Informationsdienst Wissenschaft
Data analysis optimizes cyber-physical systems in telecommunications and building automation
18.01.2017 | Fraunhofer-Institut für Algorithmen und Wissenschaftliches Rechnen SCAI
Brain-Computer Interface: What if computers could intuitively understand us
18.01.2017 | Technische Universität Berlin
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Materials Sciences
18.01.2017 | Information Technology
18.01.2017 | Ecology, The Environment and Conservation