Academic literature on the topic 'Calcul Haute Performance (CHP)'
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Journal articles on the topic "Calcul Haute Performance (CHP)"
André, Jean-Claude, and Gérard Roucairol. "Compétitivité et calcul à haute performance." Annales des Mines - Réalités industrielles Novembre, no. 4 (October 21, 2021): 80–83. http://dx.doi.org/10.3917/rindu1.214.0080.
Full textBeuraud, Alain. "Météo-France renouvelle sa confiance à Atos pour le calcul haute performance." La Météorologie, no. 107 (2019): 5. http://dx.doi.org/10.4267/2042/70543.
Full textLahlou, K., and M. Lachemi. "Prédiction de la charge ultime de colonnes mixtes constituées de tubes remplis de béton à haute résistance : étude comparative des codes de calcul." Canadian Journal of Civil Engineering 26, no. 4 (August 1, 1999): 476–88. http://dx.doi.org/10.1139/l99-010.
Full textAssayad, Ismail. "Ordonnancement de tâches hiérarchiques interdépendantes sous des exigences temporelles et objectif d’efficacité." Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées Volume 11, 2009 - Special... (August 12, 2009). http://dx.doi.org/10.46298/arima.1926.
Full textDissertations / Theses on the topic "Calcul Haute Performance (CHP)"
Peou, Kenny. "Computing Tools for HPDA : a Cache-Oblivious and SIMD Approach." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG105.
Full textThis work presents three contributions to the fields of CPU vectorization and machine learning. The first contribution is an algorithm for computing an average with half precision floating point values. In this work performed with limited half precision hardware support, we use an existing software library to emulate half precision computation. This allows us to compare the numerical precision of our algorithm to various commonly used algorithms. Finally, we perform runtime performance benchmarks using single and double floating point values in order to anticipate the potential gains from applying CPU vectorization to half precision values. Overall, we find that our algorithm has slightly worse best-case numerical performance in exchange for significantly better worst-case numerical performance, all while providing similar runtime performance to other algorithms. The second contribution is a fixed-point computational library designed specifically for CPU vectorization. Existing libraries fail rely on compiler auto-vectorization, which fail to vectorize arithmetic multiplication and division operations. In addition, these two operations require cast operations which reduce vectorizability and have a real computational cost. To allevieate this, we present a fixed-point data storage format that does not require any cast operations to perform arithmetic operations. In addition, we present a number of benchmarks comparing our implementation to existing libraries and present the CPU vectorization speedup on a number of architectures. Overall, we find that our fixed point format allows runtime performance equal to or better than all compared libraries. The final contribution is a neural network inference engine designed to perform experiments varying the numerical datatypes used in the inference computation. This inference engine allows layer-specific control of which data types are used to perform inference. We use this level of control to perform experiments to determine how aggressively it is possible to reduce the numerical precision used in inferring the PVANet neural network. In the end, we determine that a combination of the standardized float16 and bfloat16 data types is sufficient for the entire inference
Applencourt, Thomas. "Calcul haute performance & chimie quantique." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30162/document.
Full textThis thesis work has two main objectives: 1. To develop and apply original electronic structure methods for quantum chemistry 2. To implement several computational strategies to achieve efficient large-scale computer simulations. In the first part, both the Configuration Interaction (CI) and the Quantum Monte Carlo (QMC) methods used in this work for calculating quantum properties are presented. We then describe more specifically the selected CI approach (so-called CIPSI approach, Configuration Interaction using a Perturbative Selection done Iteratively) that we used for building trial wavefunctions for QMC simulations. As a first application, we present the QMC calculation of the total non-relativistic energies of transition metal atoms of the 3d series. This work, which has required the implementation of Slater type basis functions in our codes, has led to the best values ever published for these atoms. We then present our original implementation of the pseudo-potentials for QMC and discuss the calculation of atomization energies for a benchmark set of 55 organic molecules. The second part is devoted to the Hight Performance Computing (HPC) aspects. The objective is to make possible and/or facilitate the deployment of very large-scale simulations. From the point of view of the developer it includes: The use of original programming paradigms, single-core optimization process, massively parallel calculations on grids (supercomputer and Cloud), development of collaborative tools , etc - and from the user's point of view: Improved code installation, management of the input/output parameters, GUI, interfacing with other codes, etc
Perotin, Matthieu Martineau Patrick. "Calcul haute performance sur matériel générique." S. l. : S. n, 2008. http://theses.abes.fr/2008TOUR4022.
Full textPérotin, Matthieu. "Calcul haute performance sur matériel générique." Thesis, Tours, 2008. http://www.theses.fr/2008TOUR4022/document.
Full textTwo facts are motivating this work: the demand for High Performance Computing of researchers and the low usage of the computing power of the pedagogic ressources. This thesis aims at giving an answer to the demand for HPC, while preserving the pedagogic ressources for the teaching. This work looked for a solution that would be simple and straightforward for the final users. Their needs and wishes lead to the definition of some specifications, in which most of the constraints could be satisfied with the use of a well designed software stack. Some others, however, cannot be satisfied with the use of existing solutions only, they define a new scheduling problem, in which the goal is to schedule the processes on the available ressources. This problem was studied and solved with various heurisitcs, which performances were compared with a simulator before being implemented in an experimental setup
Lagardère, Louis. "Calcul haute-performance et dynamique moléculaire polarisable." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066042.
Full textThis works is at the interface between theoretical chemistry, scientific computing and applied mathematics. We study different algorithms used to solve the specific equations that arise in polarizable molecular dynamics in a massively parallel context. This family of models requires indeed to solve more complex equations than in the classical case making the use of supercomputers mandatory in order to get significant results. We will more specifically study different types of boundary conditions that represent different ways to model solvation effects : first the Particle Mesh Ewald method to treat periodic boundary conditions and then a continuum solvation model discretized within a domain decomposition strategy : the ddCOSMO. The outline of this thesis is as follows : first, the different parallel strategies in the general context of molecular dynamics are reviewed. Then several methods to adapt these strategies to the specific case of polarizable force fields are presented. After that, strategies that allow to circumvent certain limits due to the use of iterative methods in the context of polarizable molecular dynamics are presented and studied. Then, the adapation of these methods to different cases of boundary conditions is presented : first in the case of the Particle Mesh Ewald method to treat periodic boundary conditions and then in the case of a particular continuum solvation model discretized with a domain decomposition strategy : the ddCOSMO. Finally, various numerical results and applications are presented
Pasca, Bogdan Mihai. "Calcul flottant haute performance sur circuits reconfigurables." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2011. http://tel.archives-ouvertes.fr/tel-00654121.
Full textPerarnau, Swann. "Environnements pour l'analyse expérimentale d'applications de calcul haute performance." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00650047.
Full textAubert, Pierre. "Calcul haute performance pour la détection de rayon Gamma." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLV058/document.
Full textThe new generation research experiments will introduce huge data surge to a continuously increasing data production by current experiments. This increasing data rate causes upheavals at many levels, such as data storage, analysis, diffusion and conservation.The CTA project will become the utmost observatory of gamma astronomy on the ground from 2021. It will generate hundreds Peta-Bytes of data by 2030 and will have to be stored, compressed and analyzed each year.This work address the problems of data analysis optimization using high performance computing techniques via an efficient data format generator, very low level programming to optimize the CPU pipeline and vectorization of existing algorithms, introduces a fast compression algorithm for integers and finally exposes a new analysis algorithm based on efficient pictures comparison
Partimbene, Vincent. "Calcul haute performance pour la simulation d'interactions fluide-structure." Phd thesis, Toulouse, INPT, 2018. http://oatao.univ-toulouse.fr/20524/1/PARTIMBENE_Vincent.pdf.
Full textJolivet, Pierre. "Méthodes de décomposition de domaine. Application au calcul haute performance." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM040/document.
Full textThis thesis introduces a unified framework for various domain decomposition methods:those with overlap, so-called Schwarz methods, and those based on Schur complements,so-called substructuring methods. It is then possible to switch with a high-level of abstractionbetween methods and to build different preconditioners to accelerate the iterativesolution of large sparse linear systems. Such systems are frequently encountered in industrialor scientific problems after discretization of continuous models. Even though thesepreconditioners naturally exhibit good parallelism properties on distributed architectures,they can prove inadequate numerical performance for complex decompositions or multiscalephysics. This lack of robustness may be alleviated by concurrently solving sparse ordense local generalized eigenvalue problems, thus identifying modes that hinder the convergenceof the underlying iterative methods a priori. Using these modes, it is then possibleto define projection operators based on what is usually referred to as a coarse solver. Theseauxiliary tools tend to solve the aforementioned issues, but typically decrease the parallelefficiency of the preconditioners. In this dissertation, it is shown in three points thatthe newly developed construction is efficient: 1) by performing large-scale numerical experimentson Curie—a European supercomputer, and by comparing it with state of the art2) multigrid and 3) direct solvers
Books on the topic "Calcul Haute Performance (CHP)"
International Symposium on High Performance Computing Systems and Applications (17th 2003 Sherbrooke, Quebec). Proceedings of the 17th Annual International Symposium on High Performance Computing Systems and Applications and the OSCAR Symposium : May 11-14, 2003, Sherbrooke, Quebec, Canada: Comptes rendus du 17ième Symposium annuel international sur les systèmes et applications du calcul de haute performance et le Symposium OSCAR : 11-14 mai 2003, Sherbrooke, Québec, Canada / éditeur, D. Sénéchal. Edited by Sénéchal David 1963-, National Research Council Canada, and OSCAR Symposium (2003 : Sherbrooke, Quebec). Ottawa, Ont: NRC Research Press = Presses scientifiques du CNRC, 2003.
Find full textYenké, Blaise Omer. Sauvegarde en parallèle d'applications HPC: Ordonnancement des sauvegardes/reprises d'applications de calcul haute performance dans les environnements dynamiques. Omniscriptum, 2011.
Find full textBook chapters on the topic "Calcul Haute Performance (CHP)"
Hill, David R. C. "Chapitre 23. Simulations stochastiques et calcul à haute performance : la « parallélisation » des générateurs de nombres pseudo-aléatoires." In Modéliser & simuler – Tome 2, 725. Editions Matériologiques, 2014. http://dx.doi.org/10.3917/edmat.varen.2014.01.0725.
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