1,720,959 research outputs found
Scuola Estiva di Calcolo Avanzato
Get PDFThe first edition of the CASPUR Summer School for Advanced Computing took place from August 29 to September 9th, 2005, in the ENI meeting center in the beautiful surroundings of Castel Gandolfos lake. The school has been invented to further increase the knowledge and the necessary techniques in order to use complex computing systems in the most efficient way. A lot of real applications have been presented through the talks of famous researchers like A. Quarteroni, T. Mattson, J. Larson et al.Nella splendida cornice del lago di Castel Gandolfo allinterno del centro congressi dellENI situato nella suggestiva villa Montecucco, dal 29 agosto al 9 settembre 2005, si è svolta la prima edizione della Scuola Estiva di Calcolo Avanzato tenuta dallo staff del CASPUR. La scuola, rivolta a ricercatori pubblici e privati già competenti in materia, è stata ideata per incrementare ulteriormente le conoscenze e le tecniche necessarie a sfruttare in modo efficiente i sistemi di calcolo complessi, lasciando largo spazio a dimostrazioni pratiche, grazie agli interventi di persone note alla comunità scientifica quali A. Quarteroni, T. Mattson, J. Larson ed altri
IPDPS 2009: 23rd IEEE International Parallel & Distributed Processing Symposium
Get PDFIPDPS is an important international event for engineers and scientists to present their latest research findings in the fields of parallel processing and distributed computing. The themes of IPDPS 2009 were tied together by the great interest of the scientific community for the GPU computing. This kind of technology seems very promising because GPUs are intrinsically and massively parallel with a consequent tremendous computing power if compared to a modern single CPU.IPDPS costituisce un importante evento internazionale dedicato alla divulgazione e promozione dei molteplici aspetti del calcolo e dei processi paralleli e distribuiti. I temi trattati nell’edizione di Roma 2009, erano accomunati dal notevole interesse della comunità scientifica verso il calcolo ad alte prestazioni eseguito sulle GPU, ovvero le Graphical Processing Unit, di cui sono costituite le schede grafiche. Questo tipo di tecnologia sembra essere molto promettente, poiché le GPU sono intrinsecamente e massicciamente parallele e pertanto in grado di fornire singolarmente la potenza di calcolo di svariate CPU
Grafica alte prestazioni a distanza
Get PDFPer ampliare ulteriormente e integrare la vasta offerta di servizi nell’ambito delle tecnologie scientifiche, il CILEA ha recentemente acquistato presso la Exadron-Eurotech un nodo grafico ad alte prestazioni per la visualizzazione in remoto.In questo modo gli utenti potranno visualizzare gli output grafici delle proprie simulazioni direttamente sui server del supercalcolo del CILEA.To further increase and integrate the wide range of services in the field of scientific technologies, CILEA has recently buy by the Exadron-Eurotech company a high performance graphic node for remote rendering and visualization. In this way the users will be able to visualize the graphic outputs of their simulations directly on the CILEA supercomputing servers
Grafica ad alte prestazioni, remote rendering con ThinAnywhere
Get PDFThinAnywhere, a Mercury International Technology product expressly developed for remote rendering, has been installed on the graphic node bought by CILEA. Please see “Bollettino del CILEA” number 101 for hardware features. During the tests we could observe the software enormous potentiality which allow to reach very high graphic performance.Sul nodo grafico acquistato dal CILEA, per le cui caratteristiche hardware si rimanda al numero precedente del bollettino, è stato installato ThinAnywhere, un prodotto della Mercury International Technology appositamente sviluppato per il remote rendering. Dai test effettuati sono emerse le notevoli potenzialità del software che ha permesso di ottenere performance grafiche di altissimo livello
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Dettagli utilizzo cluster HP "Lagrange"
Get PDFSince March CILEA is managing the cluster “lagrange” which has 208 nodes each one with 2 processors Intel quad-core 5460. In this work users can find some detailed instructions on using this computing platform at best.Dal mese di marzo il CILEA ospita e gestisce il cluster “lagrange” costituito da 208 nodi bi-processore Intel quad-core 5460. L'articolo intende presentare le problematiche relative all'utilizzo della macchina fornendo le istruzioni operative necessarie all'uso più efficace
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Congresso Internazionale Euro-Par 2004
Get PDFEuro-Par costituisce una serie annuale di conferenze internazionali dedicate alla divulgazione e promozione dei molteplici aspetti del calcolo parallelo. I temi trattati, nell’edizione di Pisa 2004, hanno riguardato le attuali linee di ricerca nel campo delle componenti hardware e software, e lo sviluppo di applicazioni ed algoritmi studiati per
sfruttare al meglio le tecnologie emergenti. L’obiettivo di Euro-Par è stato quello di raccogliere all’interno delle sue giornate un’utenza in grado di promuovere il calcolo parallelo come un utile strumento per l’industria ed una disciplina per l’ambiente accademico
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