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Analyse Et Modelisation Des Communications Concurrentes Dans Les Reseaux Haute Performance
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Book Synopsis Analyse et modélisation des communications concurrentes dans les réseaux haute performance by : Maxime Martinasso
Download or read book Analyse et modélisation des communications concurrentes dans les réseaux haute performance written by Maxime Martinasso and published by . This book was released on 2007 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: La croissance des capacités de calcul des processeurs se poursuit, non plus par l'augmentation des fréquences d'horloge, mais par la multiplication d'unités de traitement (coeur) au sein des chips. Cette augmentation du nombre de coeurs par processeur induit un partage des autres omposants de la machine entre les différentes requêtes. En outre, les applications parallèles provenant du calcul scientifique s'efforcent d'exploiter au maximum les ressources d'une architecture parallèle. La compréhension du partage de ressource devient un des défis majeurs pour utiliser efficacement ces architectures. Ces nouveaux comportements de partage de ressources, ainsi produits, sont difficiles à interpréter et à prédire. Dans cette thèse, nous avons étudié le problème du partage du réseau. Les grappes de calcul utilisent des réseaux dédiés tels que Gigabit Ethernet, Myrinet ou Quadrics. L'exécution simultanée des tâches d'une application entraîne des accès concurrents sur la ressource réseau. Leurs effets conduisent à une perte de performance qui découle du partage de la bande passante réseau entre communications. Suivant ce contexte, nous présentons une analyse fine des comportements concurrents sur les architectures : Quadrics, Myrinet et Gigabit Ethernet. Cette analyse conduit à la définition de modèles prédictifs basés sur la notion de partage de la bande passante. En outre, nous montons que l'intégration de ces modèles dans une simulation permet de prédire les impacts dûs à la concurrence entre communications MPI résultantes de l'exécution d'applications scientifiques. La prédiction des comportements concurrents donne lieu, au niveau scientifique et technique, à une meilleure connaissance des besoins des applications et, au niveau industriel, à la proposition de solutions de grappes adaptées aux besoins de leurs clientèles
Book Synopsis Analyse et modélisation des communications concurrentes dans les réseaux haute performance by : Maxime Martinasso
Download or read book Analyse et modélisation des communications concurrentes dans les réseaux haute performance written by Maxime Martinasso and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La croissance des capacités de calcul des processeurs se poursuit, non plus par l'augmentation des fréquences d'horloge, mais par la multiplication d'unités de traitement (coeur) au sein des chips. Cette augmentation du nombre de coeurs par processeur induit un partage des autres omposants de la machine entre les différentes requêtes. En outre, les applications parallèles provenant du calcul scientifique s'efforcent d'exploiter au maximum les ressources d'une architecture parallèle. La compréhension du partage de ressource devient un des défis majeurs pour utiliser efficacement ces architectures. Ces nouveaux comportements de partage de ressources, ainsi produits, sont difficiles à interpréter et à prédire. Dans cette thèse, nous avons étudié le problème du partage du réseau. Les grappes de calcul utilisent des réseaux dédiés tels que Gigabit Ethernet, Myrinet ou Quadrics. L'exécution simultanée des tâches d'une application entraîne des accès concurrents sur la ressource réseau. Leurs effets conduisent à une perte de performance qui découle du partage de la bande passante réseau entre communications. Suivant ce contexte, nous présentons une analyse fine des comportements concurrents sur les architectures : Quadrics, Myrinet et Gigabit Ethernet. Cette analyse conduit à la définition de modèles prédictifs basés sur la notion de partage de la bande passante. En outre, nous montons que l'intégration de ces modèles dans une simulation permet de prédire les impacts dûs à la concurrence entre communications MPI résultantes de l'exécution d'applications scientifiques. La prédiction des comportements concurrents donne lieu, au niveau scientifique et technique, à une meilleure connaissance des besoins des applications et, au niveau industriel, à la proposition de solutions de grappes adaptées aux besoins de leurs clientèles.
Book Synopsis ANALYSE ET MESURE DE PERFORMANCE DES RESEAUX DE COMMUNICATIONS PAR SIMULATION by : Nacer Abouchi
Download or read book ANALYSE ET MESURE DE PERFORMANCE DES RESEAUX DE COMMUNICATIONS PAR SIMULATION written by Nacer Abouchi and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA COMPLEXITE DES RESEAUX DE COMMUNICATIONS, QU'ILS SOIENT LOCAUX OU ETENDUS, NE PEUT ETRE MODELISEE QUE PARTIELLEMENT PAR LES METHODES MATHEMATIQUES EXISTANTES. L'ANALYSE DES PERFORMANCES ET DU COMPORTEMENT DES RESEAUX ETENDUS EN FONCTION DES TECHNIQUES DE ROUTAGE ADAPTATIFS EST ENCORE MAL MAITRISEE. DE MEME, IL PEUT ETRE UTILE D'ETUDIER QUANTITATIVEMENT LES TECHNIQUES D'ACCES AUX RESEAUX LOCAUX EN FONCTION DE LEUR CONFIGURATION OU DE LEUR UTILISATION. LA SIMULATION ALEATOIRE A EVENEMENT DISCRET EST UNE SOLUTION QUI PEUT PRENDRE EN COMPTE TOUTES LES SPECIFICATIONS D'UN RESEAU SANS LES SIMPLIFIER, IL EXISTE ENCORE PEU D'OUTILS SPECIALISES DANS LA SIMULATION DE RESEAUX. DANS UNE PREMIERE PARTIE, APRES AVOIR EVOQUE LES ROLES DE LA MODELISATION ET DE LA SIMULATION DANS LES SYSTEMES NOTAMMENT LES SYSTEMES DE COMMUNICATIONS, NOUS PRESENTONS LES PRINCIPAUX CRITERES QU'IL FAUT ETUDIER AFIN DE POUVOIR FAIRE UN CHOIX CORRECT D'OUTIL DE MODELISATION ET DE SIMULATION; UNE ETUDE COMPARATIVE DES OUTILS LES PLUS UTILISES EST PRESENTEE. LA PRESENTATION DES MODELES DE SIMULATIONS QUE NOUS AVONS CONCUS POUR REPRESENTER LES RESEAUX DE COMMUNICATIONS LOCAUX ET ETENDUS FAIT L'OBJET DU DEUXIEME CHAPITRE. LA TROISIEME PARTIE SERA CONSACREE A OSIRES, L'OUTIL DE SIMULATION DE RESEAUX QUE NOUS AVONS DEVELOPPE. NOTRE ETUDE EST POURSUIVIE PAR L'ANALYSE DE DIFFERENTS ALGORITHMES DE ROUTAGES DETERMINISTES OU ADAPTATIFS RENCONTRES DANS DES RESEAUX EXISTANTS OU PROPOSES DANS LA LITTERATURE. DANS UNE DERNIERE PARTIE LES TECHNIQUES D'ACCES AUX RESEAUX LOCAUX RETENUES PAR L'OSI SONT ANALYSEES ET COMPAREES. NOUS CONCLUONS CE MEMOIRE PAR LES PERSPECTIVES ET LES SUITES A DONNER A CE TRAVAIL
Book Synopsis Une approche dynamique pour l'optimisation des communications concurrentes sur réseaux hautes performance by : Elisabeth Brunet
Download or read book Une approche dynamique pour l'optimisation des communications concurrentes sur réseaux hautes performance written by Elisabeth Brunet and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse cherche à optimiser les communications des applications de calcul intensif s'exécutant sur des grappes de PC. En raison de l'usage massif de processeurs multicoeurs, il est désormais impératif de gérer un grand nombre de flux de communication concurrents. Nous avons mis en évidence et analysé les performances décevantes des solutions actuelles dans un tel contexte. Nous avons ainsi proposé une architecture de communication centrée sur l'arbitrage de l'accès aux matériels. Son originalité réside dans la dissociation de l'activité de l'application de celle des cartes réseaux. Notre modèle exploite l'intervalle de temps introduit entre le dépot des requêtes de communication et la disponibilité des cartes réseaux pour appliquer des optimisations de manière opportuniste. NewMadeleine implémente ce concept et se révèle capable d'exploiter les réseaux les plus performants du moment. Des tests synthétiques et portages d'implémentations caractéristiques de MPI ont permis de valider l'architecture proposée.
Book Synopsis An Introduction to Efficiency and Productivity Analysis by : Timothy J. Coelli
Download or read book An Introduction to Efficiency and Productivity Analysis written by Timothy J. Coelli and published by Springer Science & Business Media. This book was released on 2005-07-22 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Softcover version of the second edition Hardcover. Incorporates a new author, Dr. Chris O'Donnell, who brings considerable expertise to the project in the area of performance measurement. Numerous topics are being added and more applications using real data, as well as exercises at the end of the chapters. Data sets, computer codes and software will be available for download from the web to accompany the volume.
Book Synopsis Research traditions in marketing by : Gilles Laurent
Download or read book Research traditions in marketing written by Gilles Laurent and published by Springer Science & Business Media. This book was released on 1994-01-31 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Divergence: A Source of Creative Thinking The outstanding job accomplished by Bernard, Gary, and Gilles is really praiseworthy: not only did they succeed in completing within a remark ably short span of time the editing of the contributions to the conference that marked the 20th Anniversary of the European Institute for Ad vanced Studies in Management; they have also managed to elicit numerous insightful comments from a host of dashing young scholars as well as from the fortunate few established authorities whose findings have long be come leading articles in the best academic journals, who now chair those journals' editorial boards, and after whom great scientific awards have been named. In so doing, our dedicated triumvirate has blended together pieces of diverse research traditions-some of them quite puzzling-and mixed significantly differentiated styles of expression. The controversial display of self-confidence by some distinguished colleagues, the amazingly emo tional "good old" memories revived by their peers, the scapegoat-finding and moralizing confessions produced by some of their disciples together with the detached systematic rigidity of some others all combine to pro duce a multivarious patchwork that may well prove the existence of a marketing scholar lifecycle. This cartoon-like four-class typology might even make it worth the reader's while to indulge in some guesswork to discover the sequence of the four stages as an exercise and then partition the author population accordingly.
Book Synopsis Innovate Bristol by : Sven Boermeester
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Download or read book Buyology written by Martin Lindstrom and published by Currency. This book was released on 2010-02-02 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.
Book Synopsis The Disappearing Computer by : Norbert Streitz
Download or read book The Disappearing Computer written by Norbert Streitz and published by Springer. This book was released on 2007-07-20 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines how the computer, as we currently know it, will be replaced by a new generation of technologies, moving computing off the desktop and ultimately integrating it with real world objects and everyday environments. It provides a unique combination of concepts, methods and prototypes of ubiquitous and pervasive computing reflecting the current interest in smart environments and ambient intelligence.
Download or read book Geomarketing written by Gérard Cliquet and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title describes the state of the art in all areas of spatial marketing, discussing the various constituents which make up the geography of markets. Demand varies according to location and can be measured according to revenue, the number of households, spending patterns and lifestyles. Supply is also dependent on position, because prices, services, products and available shops rely on location, while the difference between supply and demand is the rationale for the role of the trader. The book also covers the way geographic techniques help to solve marketing problems and contains chapters written by contributors with extensive experience in this field; given that it is crucial for companies to direct their marketing correctly at their target audience, this will be indispensable reading for those involved in this area.
Book Synopsis Conventions and Structures in Economic Organization by : Olivier Favereau
Download or read book Conventions and Structures in Economic Organization written by Olivier Favereau and published by Edward Elgar Publishing. This book was released on 2002 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book contributes to the current rapprochement between economics and sociology. It examines the fact that individuals use rules and interdependencies to forward their own interests, while living in social environments where everyone does the same. The authors argue that to construct durable organizations and viable markets, they need to be able to handle both. However, thus far, economists and sociologists have not been able to reconcile the relationship between these two types of constrains on economic activity." -- BOOK JACKET.
Book Synopsis Digital Sociology by : Noortje Marres
Download or read book Digital Sociology written by Noortje Marres and published by John Wiley & Sons. This book was released on 2017-05-11 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This provocative new introduction to the field of digital sociology offers a critical overview of interdisciplinary debates about new ways of knowing society that are emerging today at the interface of computing, media, social research and social life. Digital Sociology introduces key concepts, methods and understandings that currently inform the development of specifically digital forms of social enquiry. Marres assesses the relevance and usefulness of digital methods, data and techniques for the study of sociological phenomena and evaluates the major claim that computation makes possible a new ‘science of society’. As Marres argues, the digital does much more than inspire innovation in social research: it forces us to engage anew with fundamental sociological questions. We must learn to appreciate that the digital has the capacity to throw into crisis existing knowledge frameworks and is likely to reconfigure wider relations. This timely engagement with a key transformation of our age will be indispensable reading for undergraduate and graduate students taking courses in digital sociology, digital media, computing and society.
Book Synopsis Doing Discourse Research by : Reiner Keller
Download or read book Doing Discourse Research written by Reiner Keller and published by SAGE. This book was released on 2012-12-18 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to the basic principles of discourse research, offering practical research strategies for doing discourse analyses in the social sciences. The book includes guidance on developing a research question, selecting data and analyzing it, and presenting the results. The author has extensive practical experience in the field of discourse research and shows, throughout, how the methods suggested are compatible with numerous research questions and problems in sociology, cultural, political and social studies and related disciplines.
Book Synopsis Individual Malaria Control by : United States. Department of the Army
Download or read book Individual Malaria Control written by United States. Department of the Army and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controversy and Confrontation by : Frans H. van Eemeren
Download or read book Controversy and Confrontation written by Frans H. van Eemeren and published by John Benjamins Publishing. This book was released on 2008 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essays that are collected in Controversy and Confrontation provide a closer insight into the relationship between controversy and confrontation that deepens our understanding of the functioning of argumentative discourse in managing differences of opinion. Their authors stem from two backgrounds. First, the controversy scholars Dascal, Marras, Euli, Regner, Ferreira, and Lessl discuss historical controversies in science, both from a theoretical and an empirical perspective; Saim concentrates on a historical controversy; Fritz provides a historical perspective on controversies by analyzing communication principles. Second the argumentation scholars Johnson, van Laar, van Eemeren, Garssen and Meuffels address theoretical or empirical aspects of argumentative confrontation; Aakhus and Vasilyeva examine argumentative discourse from the perspective of conversation analysis; Jackson analyzes argumentative confrontation in a recent debate between scientists and politicians. Last but not least, two contributors, Kutrovátz and Zemplén, make an attempt to bridge the study of historical controversy and the study of argumentation.
Author :Advisory Committee on Technology and Society Publisher :National Academies Press ISBN 13 :0309037867 Total Pages :368 pages Book Rating :4.3/5 (9 download)
Book Synopsis Cities and Their Vital Systems by : Advisory Committee on Technology and Society
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1988-02-01 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Book Synopsis Building Wireless Community Networks by : Rob Flickenger
Download or read book Building Wireless Community Networks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building Wireless Community Networks is about getting people online using wireless network technology. The 802.11b standard (also known as WiFi) makes it possible to network towns, schools, neighborhoods, small business, and almost any kind of organization. All that's required is a willingness to cooperate and share resources. The first edition of this book helped thousands of people engage in community networking activities. At the time, it was impossible to predict how quickly and thoroughly WiFi would penetrate the marketplace. Today, with WiFi-enabled computers almost as common as Ethernet, it makes even more sense to take the next step and network your community using nothing but freely available radio spectrum. This book has showed many people how to make their network available, even from the park bench, how to extend high-speed Internet access into the many areas not served by DSL and cable providers, and how to build working communities and a shared though intangible network. All that's required to create an access point for high-speed Internet connection is a gateway or base station. Once that is set up, any computer with a wireless card can log onto the network and share its resources. Rob Flickenger built such a network in northern California, and continues to participate in network-building efforts. His nuts-and-bolts guide covers: Selecting the appropriate equipment Finding antenna sites, and building and installing antennas Protecting your network from inappropriate access New network monitoring tools and techniques (new) Regulations affecting wireless deployment (new) IP network administration, including DNS and IP Tunneling (new) His expertise, as well as his sense of humor and enthusiasm for the topic, makes Building Wireless Community Networks a very useful and readable book for anyone interested in wireless connectivity.
