1,721,169 research outputs found
Indicazioni alla esecuzione del radiogramma del torace nella valutazione preoperatoria del soggetto adulto.
No full textRisk management training programme: A perspective from the European side of the Atlantic
No full textPerformance analysis of minimal adaptive wormhole routing with time-dependent deadlock recovery
No full textEfficient total-exchange in wormhole-routed toroidal cubes
No full textThe total-exchange is one of the most dense communication patterns and is at the heart of numerous applications and programming models in parallel computing. In this paper we present a simple randomized algorithm to efficiently schedule the total-exchange on.a toroidal mesh with wormhole switching. This algorithm is based on an important property of the wormhole networks that reach high performance under uniform traffic using adaptive routing.
The experimental results, conducted on a 256 nodes bi-dimensional torus, show that this algorithm reaches a very high level of performance, around 90% of the optimal bound, and is more efficient than other algorithms presented in the literature
A comparison of wormhole-routed interconnection networks
No full textFat-trees and low dimensional cubes have raised a great interest in the scientific community in the last few years and are emerging standards in the design of interconnection networks for massively parallel computers. In this paper we compare the communication performance of these two classes of interconnection networks using a detailed simulation model which describes both the interconnection network and the memory hierarchy of the processing nodes. The comparison is made with a real parallel algorithm, the transpose FFT algorithm, taking into account physical constraints, as pin and bandwidth limitations, and the router complexity
Next generation PBWE: Extension of the SAC-FEMA method to high-rise buildings under wind hazards
Full text linkThis paper proposes a method for the Performance-Based Wind Engineering (PBWE) of buildings by extending the well-established SAC-FEMA method originally implemented in seismic engineering for the evaluation of the mean annual frequency (MAF) of pertinent structural Limit States (LSs) in frame buildings. The development of such a method, that we will call the “SAC-FEMA WIND” method, implies the consideration of specific wind engineering peculiarities, like the classification of the across-wind response in two distinct regimes due to buffeting and vortex shedding phenomena, with the consequent adaption of the analysis procedures already defined for earthquakes to these two regimes. The method is then applied for the MAF evaluation of the occupants’ comfort LS for a high-rise steel building: the SAC-FEMA WIND is calibrated by comparing the obtained results with those coming from a Monte Carlo numerical analysis. This allows the definition of appropriate analysis procedures and shows the reliability of the SAC-FEMA WIND in evaluating MAFs. The SAC-FEMA WIND can be viewed as a “next generation” method for PBWE, in the sense that, after years of developments of the PBWE in research, now simplified methods like the SAC-FEMA WIND are needed for the implementation in Standards and in the design practice of explicit probabilistic PBWE approaches
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