54 research outputs found
Sequential Simulation in Prosit: Programming Model and Implementation
The §loop project, launched in 1995, works on three main domains: (1) discrete event simulation, (2) parallel object-oriented languages and (3) interconnection networks. One of the research objective of the project is the development of {\sc Prosit}, a sequential and distributed object-oriented workbench for discrete event simulation. Object orientation is used to ensure two main concerns: \begin{itemize} \item performance on conventional, networked and multi-processor machines \item versatility and ease of use. \end{itemize} We have now achieved the first part of {\sc Prosit}. We have completely specified the simulation and the execution models, and we have a sequential C++ version of the simulator. This report concentrates on the modelling process and the object oriented architecture of the sequential simulator. As an illustration of possible applications, we present the classes supporting the queueing network paradigm
Deadlock free routing on a ring : a performance evaluation
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PARSEVAL : a workbench for queueing networks parallel simulation
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Object oriented parallel discrete event simulation : the PROSIT approach
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Sequential Simulation in Prosit: Programming Model and Implementation
The §loop project, launched in 1995, works on three main domains: (1) discrete event simulation, (2) parallel object-oriented languages and (3) interconnection networks. One of the research objective of the project is the development of {\sc Prosit}, a sequential and distributed object-oriented workbench for discrete event simulation. Object orientation is used to ensure two main concerns: \begin{itemize} \item performance on conventional, networked and multi-processor machines \item versatility and ease of use. \end{itemize} We have now achieved the first part of {\sc Prosit}. We have completely specified the simulation and the execution models, and we have a sequential C++ version of the simulator. This report concentrates on the modelling process and the object oriented architecture of the sequential simulator. As an illustration of possible applications, we present the classes supporting the queueing network paradigm
PARSEVAL: parallelisation sur reseaux de transputers de simulations pour l'evaluation de performances
Disponible dans les fichiers attachés à ce documen
Object oriented simulation : Highlighs on the PROSIT : parallel discrete event simulator
Disponible dans les fichiers attachés à ce documen
4D electron tomography of dislocations undergoing electron irradiation
Imaging dislocation microstructures in 3D and monitoring their interactions over time is a major challenge. In this study, we show that enhancing the contrast of dislocation lines prior to reconstruction, allows to optimize an acquisition phase with fewer images and thus to follow the 3D evolution of a microstructure over time. We illustrate this new possibility by studying the first stages of formation of helical dislocations in MgO under electron irradiation. We highlight the role of segment mobility on the initiation of climb and reveal the existence of preferential mixed climb planes
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