Download or read book Contribution a l etude des problemes d ordonnancement cyclique multidimensionnels written by Patrick Le Goueslier D'argence and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION A L ETUDE DES PROBLEMES D ORDONNANCEMENT CYCLIQUE MULTIDIMENSIONNELS written by PATRICK.. LE GOUESLIER D'ARGENCE and published by . This book was released on 1995 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: LORS DE LA COMPILATION DE PROGRAMMES SEQUENTIELS SUR MACHINE PARALLELE, IL EST IMPORTANT DE DEGAGER LE MAXIMUM DE PARALLELISME. CECI PEUT ETRE FAIT EN ORDONNANCANT LES CALCULS DE FACON A OBTENIR UN ORDONNANCEMENT A LA FOIS RAPIDE ET RESPECTANT LES CONTRAINTES DE PRECEDENCE. DANS CETTE THESE, NOUS NOUS INTERESSONS AU CAS OU LE DOMAINE DE CALCUL EST UN POLYEDRE CONVEXE SEMI-INFINI OU BORNE, LORSQUE LES DEPENDANCES SONT UNIFORMES. NOUS ETUDIONS LA COMPLEXITE DE DETERMINATION DE L'ORDONNANCEMENT OPTIMAL, ET NOUS MONTRONS QUE LE PROBLEME EST NP-DIFFICILE, ET CE MEME DANS DES CAS TRES SIMPLES. PUIS NOUS ETUDIONS LES PERFORMANCES D'ORDONNANCEMENTS AFFINES ET NOUS MONTRONS QU'ILS SONT ASYMPTOTIQUEMENT OPTIMAUX. NOUS REGARDONS ENFIN DES CAS OU LE NOMBRE DE PROCESSEURS EST LIMITE. NOUS ETUDIONS LE CAS DES PROCESSEURS DIFFERENCIES, ET NOUS MONTRONS QU'IL EST POSSIBLE D'OBTENIR UN ORDONNANCEMENT DE DEBIT OPTIMAL LORSQUE LE PARALLELISME DES CALCULS N'EST PAS BORNE

Download or read book Algorithms for Parallel Processing written by Michael T. Heath and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This IMA Volume in Mathematics and its Applications ALGORITHMS FOR PARALLEL PROCESSING is based on the proceedings of a workshop that was an integral part of the 1996-97 IMA program on "MATHEMATICS IN HIGH-PERFORMANCE COMPUTING. " The workshop brought together algorithm developers from theory, combinatorics, and scientific computing. The topics ranged over models, linear algebra, sorting, randomization, and graph algorithms and their analysis. We thank Michael T. Heath of University of lllinois at Urbana (Com puter Science), Abhiram Ranade of the Indian Institute of Technology (Computer Science and Engineering), and Robert S. Schreiber of Hewlett Packard Laboratories for their excellent work in organizing the workshop and editing the proceedings. We also take this opportunity to thank the National Science Founda tion (NSF) and the Army Research Office (ARO), whose financial support made the workshop possible. A vner Friedman Robert Gulliver v PREFACE The Workshop on Algorithms for Parallel Processing was held at the IMA September 16 - 20, 1996; it was the first workshop of the IMA year dedicated to the mathematics of high performance computing. The work shop organizers were Abhiram Ranade of The Indian Institute of Tech nology, Bombay, Michael Heath of the University of Illinois, and Robert Schreiber of Hewlett Packard Laboratories. Our idea was to bring together researchers who do innovative, exciting, parallel algorithms research on a wide range of topics, and by sharing insights, problems, tools, and methods to learn something of value from one another.

Download or read book Scheduling and Automatic Parallelization written by Alain Darte and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: I Unidimensional Problems.- 1 Scheduling DAGs without Communications.- 2 Scheduling DAGs with Communications.- 3 Cyclic Scheduling.- II Multidimensional Problems.- 4 Systems of Uniform Recurrence Equations.- 5 Parallelism Detection in Nested Loops.

Download or read book Contribution l tude des ordonnancements cycliques written by Alix Munier and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Un problème d'ordonnancement cyclique est caractérisé par un nombre fini de taches génériques de durées fixées qui doivent être exécutées une infinie de fois. Ces taches non reéntrantes sont soumises à des contraintes de précédence et de ressource qui doivent être vérifiées par toutes leurs exécutions. le critère d'optimisation généralement utilisé est la maximisation du débit. Malgré d'importantes applications industrielles ou informatiques, ce type de problème a été jusqu'ici peu abordé en tant que problème d'optimisation combinatoire. Seule la version sans contraintes de ressource de ce problème, appelée problème central répétitif a été résolue. dans cette thèse, nous étudions deux problèmes d'ordonnancement cycliques fondamentaux. Le premier consiste en un ensemble de tâches génériques qui sont exécutées sur des processeurs différenciés et qui sont soumises aux contraintes de précédence d'un problème central répétitif. Nous montrons que le problème général est NP-difficile et nous étudions la complexité de plusieurs sous-problèmes importants. De plus, nous étudions la dominance de structures périodiques simple d'ordonnancements. Le second consiste en un ensemble de tâches soumises a des contraintes de précédence linéaires. Nous montrons que l'ordonnancement au plus tôt est optimal et K-périodique. Nous donnons un algorithme pour calculer le débit optimal des tâches. Cet algorithme est basé d'une part sur une décomposition particulière du graphe des précédences et d'autre part sur l'expansion de ces composantes. Ces deux outils permettent de se ramener à l'étude d'un problème central répétitif.

Download or read book Contribution l tude des probl mes d ordonnancement contraintes cumulatives written by Daniel Louvert and published by . This book was released on 1968 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution de la theorie des graphes a l etude des problems d ordonnancement written by B. Roy and published by . This book was released on 1960 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In Vessel Melt Retention and Ex Vessel Corium Cooling IAEA Tecdoc No 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.

Download or read book The Science of Passionate Interests written by Bruno Latour and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can economics become genuinely quantitative? This is the question that French sociologist Gabriel Tarde tackled at the end of his career, and in this pamphlet, Bruno Latour and Vincent Antonin Lépinay offer a lively introduction to the work of the forgotten genius of nineteenth-century social thought. Tarde's solution was in total contradiction to the dominant views of his time: to quantify the connections between people and goods, you need to grasp "passionate interests." In Tarde's view, capitalism is not a system of cold calculations--rather it is a constant amplification in the intensity and reach of passions. In a stunning anticipation of contemporary economic anthropology, Tarde's work defines an alternative path beyond the two illusions responsible for so much modern misery: the adepts of the Invisible Hand and the devotees of the Visible Hand will learn how to escape the sterility of their fight and recognize the originality of a thinker for whom everything is intersubjective, hence quantifiable. At a time when the regulation of financial markets is the subject of heated debate, Latour and Lépinay provide a valuable historical perspective on the fundamental nature of capitalism.