An Aggregate Scalable Scheme for Expanding the Crossbar Switch Network; Design and Performance Analysis

New computer network topology, called Penta-S, is simulated. This network is built of cross bar switch modules. Each module connects 32 computer nodes. Each node has two ports, one connects the node to the crossbar switch module and the other connects the node to a correspondent client node in another module through a shuffle link. The performance of this network is simulated under various network sizes, packet lengths and loads. The results are compared with those obtained from Macramé project for Clos multistage interconnection network and 2D-Grid network. The throughput of Penta-S falls between the throughput of Clos and the throughput of 2D-Grid networks. The maximum throughput of Penta-S was obtained at packet length of 128 bytes. Also the throughput grows linearly with the network size. On the opposite of Clos and 2D-Grid networks, the per-node throughput of Penta-S improves as the network size grows. The per-packet latency proved to be better than that of Clos network for large packet lengths and high loads. Also the packet latency proved to be nearly constant against various loads. The cost-efficiency of Penta-S proved to be better than those of 2D-Grid and Clos networks for large number of nodes (>200 nodes in the case of 2D-Grid and >350 nodes in the case of Clos).On the opposite of other networks, the cost-efficiency of Penta-S grows as its size grows. So this topology suits large networks and high traffic loads

Conceptual metaphor in English popular technology and Greek translation

This research project studies the metaphorical conceptualisation of technology in English popular technology magazines and in translation in the respective Greek editions. The focus is on the cognitive linguistic view of metaphor initially presented by Lakoff and Johnson (1980), on the metaphor identification procedure (Pragglejaz Group 2007), and critical metaphor analysis (Charteris-Black 2004). The analysis of the English data identifies 14 main metaphors and 29 submetaphors which contribute to the structure of the target domain of technology. It distinguishes between conventional and novel metaphors, and common and original metaphorical expressions, motivated by correlations in experience between diverse source domains and by the widespread diffusion and impact of technology. The English data also provide insight into the functions of these metaphors in popular technology discourse and reveal evidence to thinking, values and attitudes about technology in the English language. The analysis of the Greek data examines similarities and differences in the conceptualisations between the English and Greek languages and cultures, and finds similarities in the categories of metaphors, frequency of and preference for metaphor use in the source and target languages, and in the majority of metaphorical expressions. Similarities are based on common experiences stemming from experiential co-occurrence or experiential similarity, and on translated experience. Differences are restricted to specific-level metaphors and expressions, motivated by alternative conceptualisations of terminology, cultural specificity and preferential conceptualisations. A set of translation strategies and a number of possible translation effects are also identified. These strategies and effects add to the possibilities of translation variations and the range of translation options, and are used to draw conclusions regarding the similarities and differences between the English and Greek languages and cultures. Consequently, through the identification and description of metaphors in technology magazines and in translation, the study attempts to highlight aspects of the culture of technology, which views technology as a cultural artefact and a producer of its own culture.EThOS - Electronic Theses Online ServiceGreek State Scholarship Foundation (IKY)GBUnited Kingdo

Results from the Macramé 1024 Node Switching Network

Introduction Data acquisition and trigger systems for LHC experiments will depend critically on the use of high speed point to point links and packet switches [1,2]. A range of alternative technologies are presently under study including, Fibre Channel [3], ATM [4], SCI [5] and IEEE 1355 [6] (DS and HS links). To date, practical experience with packet switching networks in High Energy Physics (HEP) has been confined to relatively small systems and there are no experimental results on how the performance of such systems will scale up to several hundred or even several thousand nodes. Theoretical studies [7,8] have been carried out for large IEEE 1355 networks of up to one thousand nodes connected by different switching topologies. HowPreprint submitted to Elsevier Preprint 17 February ever, the traffic patterns used are not those relevant to HEP experiments, but rather those found in telecommunications systems or massively parallel computers. We present result

CIMODE 2016: 3º Congresso Internacional de Moda e Design: proceedings

O CIMODE 2016 é o terceiro Congresso Internacional de Moda e Design, a decorrer de 9 a 12 de maio de 2016 na cidade de Buenos Aires, subordinado ao tema : EM--‐TRAMAS. A presente edição é organizada pela Faculdade de Arquitetura, Desenho e Urbanismo da Universidade de Buenos Aires, em conjunto com o Departamento de Engenharia Têxtil da Universidade do Minho e com a ABEPEM – Associação Brasileira de Estudos e Pesquisa em Moda.info:eu-repo/semantics/publishedVersio

The MACRAMÉ 1024 Node Switching Network: Status and Future Prospects

Within the framework of the MACRAMÉ Esprit project a large switching network is being constructed using IEEE 1355 DS link technology. The final system will allow the systematic study of the performance of a 1024 node testbed using a variety of network topologies and traffic patterns, including those met in High Energy Physics trigger and data acquisition applications. The status of the project and some preliminary results are presented. 1. Introduction It is recognised that the data acquisition and trigger systems for LHC experiments will depend critically on the use of high speed point to point links and packet switches [1,12]. A range of alternative technologies are presently under study including, Fibre Channel [2], ATM [3], SCI [4] and IEEE 1355 [5] (DS and HS links). To date, practical experience has been confined to relatively small systems and there are no experimental results on how the performance of such systems will scale up to several hundred or even several thousand nodes..

Results from the Macramé 1024 Node IEEE 1355 Switching Network

. We report on the construction of a 1024 node switching network using IEEE1355 DS-Link technology. The nodes are interconnected by a switching fabric based on the STC104 packet switch. The system has been designed and constructed in a modular way in order to allow a variety of different network topologies to be investigated. Network throughput and latency have been studied for different topologies under various traffic conditions. Keywords: DS-Links, IEEE 1355; STC104; network performance; packet switching 1 Introduction An intensive study was undertaken to demonstrate the feasibility, reliability and scalability of the innovative European link and switch technology IEEE 1355 [1]. The results presented in this paper demonstrate the product readiness of the technology and can be used to assist potential OEM customers. We present results obtained on a large modular testbed using 100 Mbits/s point-to-point DS-Links. Up to 1024 nodes have been interconnected by a switching fabric based ..