University of Grenoble

About: University of Grenoble is a education organization based out in Saint-Martin-d'Hères, France. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 25658 authors who have published 45143 publications receiving 909760 citations.

Adding Virtualization Capabilities to the Grid’5000 Testbed

Abstract: Almost ten years after its premises, the Grid’5000 testbed has become one of the most complete testbed for designing or evaluating large-scale distributed systems. Initially dedicated to the study of High Performance Computing, the infrastructure has evolved to address wider concerns related to Desktop Computing, the Internet of Services and more recently the Cloud Computing paradigm. This paper present recent improvements of the Grid’5000 software and services stack to support large-scale experiments using virtualization technologies as building blocks. Such contributions include the deployment of customized software environments, the reservation of dedicated network domain and the possibility to isolate them from the others, and the automation of experiments with a REST API. We illustrate the interest of these contributions by describing three different use-cases of large-scale experiments on the Grid’5000 testbed. The first one leverages virtual machines to conduct larger experiments spread over 4000 peers. The second one describes the deployment of 10000 KVM instances over 4 Grid’5000 sites. Finally, the last use case introduces a one-click deployment tool to easily deploy major IaaS solutions. The conclusion highlights some important challenges of Grid’5000 related to the use of OpenFlow and to the management of applications dealing with tremendous amount of data.

Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton–proton collision data

Abstract: This paper presents the performance of the ATLAS muon reconstruction during the LHC run with pp collisions at root s = 7-8 TeV in 2011-2012, focusing mainly on data collected in 2012. Measurements ...

Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector

Abstract: A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at root s = 7 TeV with the ATLAS experiment at the Large flatiron Collider. Four kinematic regions are explored using a dataset corresponding to an integrated luminosity of 4.7 fb(-1). No excess of events beyond expectations from Standard Model processes is observed, and limits are set on large extra dimensions and the pair production of dark matter particles.

Exploring free-energy landscapes of intrinsically disordered proteins at atomic resolution using NMR spectroscopy.

Abstract: Proteins at Atomic Resolution Using NMR Spectroscopy Malene Ringkjøbing Jensen,†,‡,§ Markus Zweckstetter, Jie-rong Huang,†,‡,§ and Martin Blackledge*,†,‡,§ †Universite ́ Grenoble Alpes, Institut de Biologie Structurale (IBS), F-38027 Grenoble, France ‡CEA, DSV, IBS, F-38027 Grenoble, France CNRS, IBS, F-38027 Grenoble, France Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany German Center for Neurodegenerative Diseases (DZNE), 37077 Göttingen, Germany Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), University Medical Center, 37073 Göttingen, Germany

Antiferromagnetic spin textures and dynamics

Abstract: Antiferromagnets provide greater stability than their ferromagnetic counterparts, but antiferromagnetic spin textures and nanostructures also exhibit more complex, and often faster, dynamics, offering new functionalities for spintronics devices.