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
Open source software helps researchers extract key insights from huge sensor datasets
22.03.2019 | Universität des Saarlandes
Touchscreens go 3D with buttons that pulsate and vibrate under your fingertips
14.03.2019 | Universität des Saarlandes
DESY and MPSD scientists create high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials.
The nonlinear process of high-order harmonic generation (HHG) in gases is one of the cornerstones of attosecond science (an attosecond is a billionth of a...
Nano- and microtechnology are promising candidates not only for medical applications such as drug delivery but also for the creation of little robots or flexible integrated sensors. Scientists from the Max Planck Institute for Polymer Research (MPI-P) have created magnetic microparticles, with a newly developed method, that could pave the way for building micro-motors or guiding drugs in the human body to a target, like a tumor. The preparation of such structures as well as their remote-control can be regulated using magnetic fields and therefore can find application in an array of domains.
The magnetic properties of a material control how this material responds to the presence of a magnetic field. Iron oxide is the main component of rust but also...
Due to the special arrangement of its molecules, a new coating made of corn starch is able to repair small scratches by itself through heat: The cross-linking via ring-shaped molecules makes the material mobile, so that it compensates for the scratches and these disappear again.
Superficial micro-scratches on the car body or on other high-gloss surfaces are harmless, but annoying. Especially in the luxury segment such surfaces are...
The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.
A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...
Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...
11.03.2019 | Event News
01.03.2019 | Event News
28.02.2019 | Event News
22.03.2019 | Life Sciences
22.03.2019 | Life Sciences
22.03.2019 | Information Technology