WorldCat Identities

Desprez, Frédéric

Overview
Works: 47 works in 84 publications in 2 languages and 1,047 library holdings
Genres: Conference papers and proceedings 
Roles: Editor, Author, Opponent, Thesis advisor, 958, 956
Classifications: QA76.76.O63, 005.43
Publication Timeline
.
Most widely held works by Frédéric Desprez
Initiation au parallélisme : concepts, architectures et algorithmes by Marc Gengler( Book )

4 editions published between 1995 and 1996 in French and held by 85 WorldCat member libraries worldwide

Algorithms and tools for parallel computing on heterogeneous clusters( Book )

4 editions published between 2006 and 2007 in English and held by 83 WorldCat member libraries worldwide

UNIX for the impatient by Paul W Abrahams( Book )

1 edition published in 1999 in French and held by 39 WorldCat member libraries worldwide

CD-ROM contains: Hypertext version of text -- Slackware distribution of Linux -- free version of Unix -- Files for the Emacs editor
Grids, P2P and services computing by Frédéric Desprez( Book )

9 editions published in 2010 in English and held by 25 WorldCat member libraries worldwide

Grids, P2P and Services Computing, the 12th volume of the CoreGRID series, is based on the CoreGrid ERCIM Working Group Workshop on Grids, P2P and Service Computing in Conjunction with EuroPar 2009. The workshop took place August 24th, 2009 in Delft, The Netherlands. Grids, P2P and Services Computing, an edited volume contributed by well-established researchers worldwide, focuses on solving research challenges for Grid and P2P technologies. Topics of interest include: Service Level Agreement, Data & Knowledge Management, Scheduling, Trust and Security, Network Monitoring and more. Grids are a crucial enabling technology for scientific and industrial development. This book also includes new challenges related to service-oriented infrastructures. Grids, P2P and Services Computing is designed for a professional audience composed of researchers and practitioners within the Grid community industry. This volume is also suitable for advanced-level students in computer science
Cloud computing and services sciences : International Conference in Cloud Computing and Services Sciences, CLOSER 2014, Barcelona Spain, April 3-5, 2014, Revised selected papers by CLOSER( Book )

7 editions published in 2015 in English and held by 6 WorldCat member libraries worldwide

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 This book constitutes the thoroughly refereed proceedings of the 4th International Conference on Cloud Computing and Services Science, CLOSER 2014, held in Barcelona, Spain, in April 2014. The 14 papers presented were selected from 127 paper submissions. The papers focus on the following topics: cloud computing fundamentals; services science foundations for cloud computing; cloud computing platforms and applications; cloud computing enabling technologies; and mobile cloud computing services. /* Style Definitions */ table. MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri", "sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} ntStyles> e"/>
Successive broadcasts on hypercube by Frédéric Desprez( Book )

3 editions published in 1993 in English and held by 3 WorldCat member libraries worldwide

Abstract: "Broadcasting is an information dissemination problem in which information originating at one node of a communication network must be transmitted to all the other nodes as quickly as possible [1,2]. In this paper, we consider the problem in which all the nodes of a network must, by turns, broadcast a distinct message. We call this problem the successive broadcasts problem. Successive broadcasts is a communication pattern that appears in several parallel implementations of linear algebra algorithms on distributed memory multicomputers. Note that the successive broadcasts problem is different from the gossip problem [2] in which all the nodes must perform a broadcast in any order, even simultaneously. We present an algorithm solving the successive broadcasts problem on hypercubes. We derive a lower bound on the time of any successive broadcasts [sic] algorithms that shows that our algorithm is within a factor of 2 of the optimality."
Euro-Par 2012 : parallel processing workshops : BDMC, CGWS, HeteroPar, HiBB, OMHI, Paraphrase, PROPER, Resilience, UCHPC, VHPC, Rhodes Islands, Greece, August 27-31, 2012 : revised selected papers by Ioannis Caragiannis( Book )

6 editions published in 2013 in English and held by 3 WorldCat member libraries worldwide

This book constitutes thoroughly refereed post-conference proceedings of the workshops of the 18th International Conference on Parallel Computing, Euro-Par 2012, held in Rhodes Islands, Greece, in August 2012. The papers of these 10 workshops BDMC, CGWS, HeteroPar, HiBB, OMHI, Paraphrase, PROPER, UCHPC, VHPC focus on promotion and advancement of all aspects of parallel and distributed computing
Procédures de base pour le calcul scientifique sur machines parallèles à mémoire distribuée by Frédéric Desprez( Book )

4 editions published in 1994 in French and held by 3 WorldCat member libraries worldwide

Le but de cette thèse est l'étude et l'implémentation de routines de base pour aider l'utilisateur de machines parallèles à mémoire distribuée à obtenir les meilleures performances avec un coût de développement moindre. Trois ensembles de routines sont étudiés. Le premier concerne des routines de communication sur réseau réconfigurable. La seconde bibliothèque fournit à l'utilisateur des routines portables de recouvrements calculs/communications transparents. Enfin, le dernier ensemble concerne des routines de calcul comme le produit de matrices, la factorisation LU et la transformée de Fourier bidimensionnelle. Une attention toute particulière est portée aux recouvrements calculs/communications. Enfin, une application des principes présentés tout au long de la thèse est donnée. Elle concerne la simulation d'un front de combustion
Evaluation de précision et vitesse de simulation pour des systèmes de calcul distribué à large échelle by Pedro Antonio Madeira de Campos Velho( )

1 edition published in 2011 in French and held by 3 WorldCat member libraries worldwide

Large-Scale Distributed Computing (LSDC) systems are in production today to solve problems that require huge amounts of computational power or storage. Such systems are composed by a set of computational resources sharing a communication infrastructure. In such systems, as in any computing environment, specialists need to conduct experiments to validate alternatives and compare solutions. However, due to the distributed nature of resources, performing experiments in LSDC environments is hard and costly. In such systems, the execution flow depends on the order of events which is likely to change from one execution to another. Consequently, it is hard to reproduce experiments hindering the development process. Moreover, resources are very likely to fail or go off-line. Yet, LSDC archi- tectures are shared and interference among different applications, or even among processes of the same application, affects the overall application behavior. Last, LSDC applications are time consuming, thus conducting many experiments, with several parameters is often unfeasible. Because of all these reasons, experiments in LSDC often rely on simulations. Today we find many simulation approaches for LSDC. Most of them objective specific architectures, such as cluster, grid or volunteer computing. Each simulator claims to be more adapted for a particular research purpose. Nevertheless, those simulators must address the same problems: modeling network and managing computing resources. Moreover, they must satisfy the same requirements providing: fast, accurate, scalable, and repeatable simulations. To match these requirements, LSDC simulation use models to approximate the system behavior, neglecting some aspects to focus on the desired phe- nomena. However, models may be wrong. When this is the case, trusting on models lead to random conclusions. In other words, we need to have evidence that the models are accurate to accept the con- clusions supported by simulated results. Although many simulators exist for LSDC, studies about their accuracy is rarely found. In this thesis, we are particularly interested in analyzing and proposing accurate models that respect the requirements of LSDC research. To follow our goal, we propose an accuracy evaluation study to verify common and new simulation models. Throughout this document, we propose model improvements to mitigate simulation error of LSDC simulation using SimGrid as case study. We also evaluate the effect of these improvements on scalability and speed. As a main contribution, we show that intuitive models have better accuracy, speed and scalability than other state-of-the art models. These better results are achieved by performing a thorough and systematic analysis of problematic situations. This analysis reveals that many small yet common phenomena had been neglected in previous models and had to be accounted for to design sound models
Efficient communication operations in reconfigurable parallel computers by Frédéric Desprez( Book )

2 editions published in 1993 in English and held by 3 WorldCat member libraries worldwide

Abstract: "Reconfiguration is largely an unexplored property in the context of parallel models of computation. However, it is a powerful concept as far as massively parallel architectures are concerned, because it overcomes the constraints due to the bissection [sic] width arising in most of distributed memory machines. In this paper, we show how to use reconfiguration in order to improve communication operations that are widely used in parallel applications. We propose quasi-optimal algorithms for broadcasting, scattering, gossiping and multi-scattering."
Cloud computing and services science : third International Conference, CLOSER 2013, Aachen, Germany, May 8-10, 2013 : revised selected papers by Markus Helfert( Book )

5 editions published in 2014 in English and held by 2 WorldCat member libraries worldwide

This book constitutes the thoroughly refereed proceedings of the Third International Conference on Cloud Computing and Services Science, CLOSER 2013, held in Aachen, Germany, in May 2013. The 8 papers presented were selected from 142 paper submissions. The papers cover the following topics: cloud computing fundamentals; services science foundations for cloud computing; cloud computing platforms and applications; and cloud computing enabling technologies
Parallel computing : from multicores and GPU's to Petascale by ParCo 2009( Book )

2 editions published in 2010 in English and held by 2 WorldCat member libraries worldwide

Recouvrement des communications et des calculs, du matériel au logiciel by Frédérique Silber-Chaussumier( Book )

1 edition published in 2002 in French and held by 1 WorldCat member library worldwide

Le but de cette thèse est l'étude des recouvrements des communications sur des machines parallèles à mémoire distribuée. Les recouvrements des communications sont des techniques très utilisées dans le but d'accélérer les exécutions de programmes parallèles. Notre première contribution est l'étude détaillée d'une implantation efficace de la bibliothèque de communication MPI sur une grappe de PC interconnectée par un réseau rapide. Cette étude montre tout d'abord que le matériel permet de recouvrir le transfert des données sur le réseau. Dans un deuxième temps, nous montrons pourquoi le logiciel de communication inter-processus, MPI, empêche le recouvrement des communications par le calcul. La sémantique des communications et l'implication du processeur de calcul dans la communication en sont les principales causes.Notre deuxième contribution est la validation des équations de gain d'un pipeline modélisées par Zory, par l'intermédiaire de l'application Sweep3D. Cette application nous a permis de montrer que sur des données de grande taille, l'utilisation de pipelines logiciels sur P processeurs peut apporter un gain en temps d'execution s'approchant d'un facteur P. Notre troisième contribution est l'évaluation a priori de la meilleurs configuration de l'espace des processeurs, c'est-à-dire mono, bi ou tridimensionnel. En établissant les équations des temps d'exécution d'une application par vague pour ces trois types de distribution en fonction des paramètres de la machine cible et de l'application, nous pouvons déterminer la distribution qui donnera le plus petit temps d'exécution
Gestion des bases de données biologiques sur grilles de calcul by Gaël Le Mahec( Book )

1 edition published in 2008 in French and held by 1 WorldCat member library worldwide

L'utilisation de la grille pour la recherche en biologie et bioinformatique est un atout considérable, cependant de nouvelles problématiques apparaissent quant à la gestion des données ainsi que dans l'ordonnancement des tâches qui doit prendre en compte la taille et la disponibilité des données. Cette thèse aborde ces problématiques nouvelles en prenant en compte les spécificités des bases de données biologiques pour une utilisation efficace de la grille. Nous montrons l'intérêt des approches semi-statiques joignant réplications de données et ordonnancement des tâches. La mise en place d'une plateforme de soumission de requêtes BLAST a mené à la conception d'un nouveau gestionnaire de données pour l'intergiciel DIET : DAGDA. Au delà des applications de bioinformatique, ce gestionnaire de données peut répondre aux besoins de nombreuses applications portées sur les grilles de calcul
Étude et optimisation du comportement mémoire dans les méthodes parallèles de factorisation de matrices creuses by Abdou Guermouche( Book )

1 edition published in 2004 in French and held by 1 WorldCat member library worldwide

Les méthodes directes de résolution de systèmes linéaires creux sont connues pour leurs besoins mémoire importants qui peuvent constituer une barrière au traitement de problèmes de grandes taille. De ce fait, les travaux effectués durant cette thèse ont porté d'une part sur l'étude du comportement mémoire d'un algorithme de factorisation de matrices creuses, en l'occurrence la méthode multifrontale, et d'autre part sur l'optimisation et la minimisation de la mémoire nécessaire au bon déroulement de la factorisation aussi bien dans un cadre séquentiel que parallèle. Ainsi, des algorithmes optimaux pour la minimisation de la mémoire ont été proposés pour le cas séquentiel. Pour le cas parallèle, nous avons introduit dans un premier temps des stratégies d'ordonnancement visant une amélioration du comportement mémoire de la méthode. Puis, nous les avons étendues pour avoir un objectif de performance tout en gardant un bon comportement mémoire. Enfin, dans le cas où l'ensemble des données à traiter a encore une taille plus importante que celle de la mémoire, il est nécessaire de concevoir des approches de factorisation out-of-core. Pour être efficaces, ces méthodes nécessitent d'une part de recouvrir les opérations d'entrées/sorties par des calculs, et d'autre part de réutiliser des données déjà présentes en mémoire pour réduire le volume d'entrées/sorties. Ainsi, une partie des travaux présentés dans cette thèse ont porté sur la conception de techniques out-of-core implicites adaptées au schéma des accès de la méthode multifrontale et reposant sur une modification de la politique de pagination du système d'exploitation à l'aide d'un outil bas-niveau (MMUM&MMUSSEL)
VTDC'13 : proceedings of the 7th International Workshop on Virtualization Technologies in Distributed Computing : June 18, 2013, New York, NY, USA by International Workshop on Virtualization Technology in Distributed Computing( )

1 edition published in 2013 in English and held by 0 WorldCat member libraries worldwide

Proceedings of the 7th international workshop on Virtualization technologies in distributed computing by Frédéric Desprez( )

1 edition published in 2013 in English and held by 0 WorldCat member libraries worldwide

Proceedings of the 6th international workshop on Virtualization Technologies in Distributed Computing Date by Frédéric Desprez( )

1 edition published in 2012 in English and held by 0 WorldCat member libraries worldwide

VTDC'12 : the 6th International Workshop on Virtualization Technologies in Distributed Computing : June 18, 2012, Delft, the Netherlands by International Workshop on Virtualization Technology in Distributed Computing( )

1 edition published in 2012 in English and held by 0 WorldCat member libraries worldwide

 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.69 (from 0.46 for Grids, P2P ... to 0.95 for Evaluation ...)

Algorithms and tools for parallel computing on heterogeneous clusters
Languages
English (44)

French (13)

Covers
Grids, P2P and services computingGrids, P2P and Services Computing ; [Grids, P2P and Services Computing, the 12th volume of the CoreGRID series, is based on the CoreGrid ERCIM Working Group Workshop on Grids, P2P and Service Computing in Conjunction with EuroPar 2009. The workshop took place August 24th, 2009 in Delft, The Netherlands]Parallel computing : from multicores and GPU's to Petascale