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32 results on '"Namyst, R."'

2. Resource Aggregation for Task-Based Cholesky Factorization on Top of Heterogeneous Machines

Author

Cojean, T., Guermouche, A., Hugo, A., Namyst, R., Wacrenier, P. A., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Desprez, Frédéric, editor, Dutot, Pierre-François, editor, Kaklamanis, Christos, editor, Marchal, Loris, editor, Molitorisz, Korbinian, editor, Ricci, Laura, editor, Scarano, Vittorio, editor, Vega-Rodríguez, Miguel A., editor, Varbanescu, Ana Lucia, editor, Hunold, Sascha, editor, Scott, Stephen L., editor, Lankes, Stefan, editor, and Weidendorfer, Josef, editor

Published
2017
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5. On importance of Service Level Management in Grids

Author

Szepieniec, T., Kocot, J., Schaaf, T., Appleton, O., Heikkurinen, M., Belloum, A.S.Z., Serrat-Fernández, J., Metzker, M., Alexander, M., D' Ambra, P., Belloum, A., Bosilca, G., Cannataro, M., Danelutto, M., Di Martino, B., Gerndt, M., Jeannot, E., Namyst, R., Roman, J., Scott, S.L., Larsson Traff, J., Vallée, G., Weidendorfer, J., Computational Science Lab (IVI, FNWI), and System and Network Engineering (IVI, FNWI)

Subjects
Information Technology Infrastructure Library, Engineering management, Knowledge management, Computer science, Process (engineering), business.industry, Service delivery framework, Service level, Grid application, Usability, Service provider, business, Grid
Abstract

The recent years saw an evolution of Grid technologies from early ideas to production deployments. At the same time, the expectations for Grids shifted from idealistic hopes — buoyed by the successes of the initial testbeds — to disillusionment with available implementations when applied to large-scale general purpose computing. In this paper, we argue that a mature e-Infrastructure aiming to bridge the gaps between visions and realities cannot be delivered without introducing Service Level Management (SLM). To support this thesis, we present an analysis of the Grid foundations and definitions that shows that SLM-related ideas were incorporated in them from the beginning. Next, we describe how implementing SLM in Grids could improve the usability and user-experience of the infrastructure - both for its customers and service providers. We also present a selection of real-life Grid application scenarios that are important for the research communities supported by the Grid, but cannot be efficiently supported without the SLM process in place. In addition, the paper contains introduction to SLM, a discussion on what introducing SLM to Grids might mean in practice, and what were the current efforts already applied in this field.

Published
2012
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6. Leveraging PEPPHER Technology for Performance Portable Supercomputing

Author

Kessler, C., Dastgeer, U., Majeed, M., Furmento, N., Thibault, S., Namyst, R., Siegfried Benkner, Pllana, S., Traff, J. L., and Wimmer, M.

Subjects
Datavetenskap (datalogi), parallel computing, Computer Sciences, heterogeneous multicore system, SkePU, high-performance computing, parallel software composition, MPI, skeleton computing, GPU cluster, performance portability
Abstract

PEPPHER is a 3-year EU FP7 project that develops a novel approach and framework to enhance performance portability and programmability of heterogeneous multi-core systems. Its primary target is single-node heterogeneous systems, where several CPU cores are supported by accelerators such as GPUs. This poster briefly surveys the PEPPHER framework for single-node systems, and elaborates on the prospectives for leveraging the PEPPHER approach to generate performance-portable code for heterogeneous multi-node systems. EU FP7 PEPPHER SeRC - OpCoReS

Published
2013

7. Programmability and Performance Portability Aspects of Heterogeneous Multi-/Manycore Systems

Author

Kessler, C., Dastgeer, U., Thibault, S., Namyst, R., Richards, A., Dolinsky, U., Siegfried Benkner, Traff, J. L., Pllana, S., PELAB (Programming Environment Laboratory), Linköping University (LIU), Laboratoire Bordelais de Recherche en Informatique (LaBRI), Université de Bordeaux (UB)-École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB)-Centre National de la Recherche Scientifique (CNRS), Efficient runtime systems for parallel architectures (RUNTIME), Inria Bordeaux - Sud-Ouest, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Codeplay Software, University of Vienna [Vienna], Vienna University of Technology (TU Wien), European Project: 248481,EC:FP7:ICT,FP7-ICT-2009-4,PEPPHER(2010), and Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB)

Subjects
020203 distributed computing, Offload-C++, parallel software components, Computer Sciences, heterogeneous multicore system, GPU, parallel programming language, parallel software composition, 02 engineering and technology, SkePU skeleton programming library, Graphics processing unit, Datavetenskap (datalogi), performance-aware composition, StarPU runtime system, 0202 electrical engineering, electronic engineering, information engineering, hybrid parallel computing, 020201 artificial intelligence & image processing, PEPPHER framework, PEPPHER component, [INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC], compiler, performance portability
Abstract

International audience; We discuss three complementary approaches that can provide both portability and an increased level of abstraction for the programming of heterogeneous multicore systems. Together, these approaches also support performance portability, as currently investigated in the EU FP7 project PEPPHER. In particular, we consider (1) a library-based approach, here represented by the integration of the SkePU C++ skeleton programming library with the StarPU runtime system for dynamic scheduling and dynamic selection of suitable execution units for parallel tasks; (2) a language-based approach, here represented by the Offload-C++ high-level language extensions and Offload compiler to generate platform-specific code; and (3) a component-based approach, specifically the PEPPHER component system for annotating user-level application components with performance metadata, thereby preparing them for performance-aware composition. We discuss the strengths and weaknesses of these approaches and show how they could complement each other in an integrational programming framework for heterogeneous multicore systems.

Published
2012
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8. Service Level Management for executable papers

Author

Cushing, R., Koulouzis, S., Strijkers, R., Belloum, A.S.Z., Bubak, M., Alexander, M., D' Ambra, P., Belloum, A., Bosilca, G., Cannataro, M., Danelutto, M., Di Martino, B., Gerndt, M., Jeannot, E., Namyst, R., Roman, J., Scott, S.L., Larsson Traff, J., Vallée, G., Weidendorfer, J., Computational Science Lab (IVI, FNWI), and System and Network Engineering (IVI, FNWI)

Subjects
Focus (computing), Service (systems architecture), Communication & Information, TS - Technical Sciences, Computer science, business.industry, Context (language use), computer.file_format, Information Society, BIS - Business Information Services, computer.software_genre, Computer security, Reproducibility, Executable papers, Vital ICT Infrastructure, Virtual machine, Service level, Executable, Data storage, Software engineering, business, computer, Scientific Publications
Abstract

Reproducibility of Science is considered as one of the main principles of the scientific method, and refers to the ability of an experiment to be accurately reproduced, by third person, in complex experiment every detail matters to ensure the correct reproducibility. In the context of the ICCS 2011, Elsevier organized the executable paper grand challenge a contest to improve the way scientific information is communicated and used. While during this contest the focus was on developing methods and technique to realize the idea of executable papers, in this paper we focus on the operational issues related to the creation a viable service with a predefined QoS.

Published
2012

9. Towards exascale with the ANR-JST Japanese-French Project FP3C

Author

Antoniu, G., primary, Boku, T., additional, Buttari, A., additional, Calvin, C., additional, Codognet, P., additional, Dayde, M., additional, Emad, N., additional, Ishikawa, Y., additional, Joslin, G., additional, Matsuoka, S., additional, Nakajima, K., additional, Nakashima, H., additional, Namyst, R., additional, Petiton, S., additional, Sakurai, T., additional, and Sato, M., additional

Published
2013
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11. Grid'5000: a large scale and highly reconfigurable grid experimental testbed

Author

Cappello, F., primary, Caron, E., additional, Dayde, M., additional, Desprez, F., additional, Jegou, Y., additional, Primet, P., additional, Jeannot, E., additional, Lanteri, S., additional, Leduc, J., additional, Melab, N., additional, Mornet, G., additional, Namyst, R., additional, Quetier, B., additional, and Richard, O., additional

Published
2005
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