Supercomputers, like the ones made available to scientists within PRACE (Partnership for Advanced Computing in Europe), which provide computing power in the petaflops range, are very expensive research resources. Therefore, the available processing time and energy should be used efficiently.
This requires a continuous search for optimization potential in programming parallel architectures based on either multi-core processors, many-core processors or even general purpose graphics processing units (GPGPUs). While performance analysis tools exist to help the developers detect bottlenecks, these tools do not give any recommendations on how to subsequently tune the code.
A solution for this problem will become available through the AutoTune project. AutoTune will extend the performance analysis tool “Periscope”, an automatic online and distributed performance analysis tool developed by Technische Universität München (TUM), with automatic online tuning plugins for performance and energy efficiency tuning.
AutoTune is coordinated by TUM and has a budget of approximately three million Euros. It will be funded by the European Commission with about two million Euros. The project started mid of October 2011 and will run for three years. In addition to TUM, the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences, CAPS entreprise, the Universitat Autònoma de Barcelona (UAB), the Centre for High-End Computing (ICHEC) at the University of Galway as well as the University of Vienna are partners in the project. IBM is an associated partner.
The expertise of this consortium covers all relevant areas. TUM developed the automatic performance analysis tool Periscope. The University of Vienna brings in their expertise in language, compiler and runtime techniques for efficient programming of GPGPU-accelerated architectures. CAPS entreprise is developing HMPP (Hybrid Multicore Parallel Programming), an easy-to-use directive-based programming interface for GPGPU. UAB developed the MATE (Monitoring, Analysis and Tuning Environment) framework for tuning pattern-based parallel applications. The LRZ delivers extensive experience with application tuning and will work together with IBM on energy efficiency tuning. IBM will provide extensions to its Load Leveler for LRZ‘s next petascale system named SuperMUC. ICHEC is especially experienced in the area of GPGPU programming and will bring in their application knowledge.Contact:
Dr. Ellen Latzin | idw
UT professor develops algorithm to improve online mapping of disaster areas
29.11.2016 | University of Tennessee at Knoxville
New standard helps optical trackers follow moving objects precisely
23.11.2016 | National Institute of Standards and Technology (NIST)
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy