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Smart grids rely on the integration of distributed energy resources towards an intelligent and distributed manner to organize the electrical power grid enabled by a bidirectional flow of information to improve reliability and robustness, fault detection and system operation, and plug-and-playability of energy devices. The integration of information and communication technologies (ICT), one of the...
This paper deals with the problem of properly simulating the Internet of Things (loT). Simulating an loT allows evaluating strategies that can be employed to deploy smart services over different kinds of territories. However, the heterogeneity of scenarios seriously complicates this task. This imposes the use of sophisticated modeling and simulation techniques. We discuss novel approaches for the...
A combat vehicle simulator is the first complex drive-simulator developed at the University of Pardubice. It consists of dozens of complementary simulators and simulation calculations. The whole simulator is created on a modified implementation of a game engine. That has resulted in a high-quality graphic processing, based on a hybrid kernel of the simulator (discrete-continuous simulation), which...
In this work an algorithm for the optimization of signal setting on urban network is proposed. Signal setting are designed based on a given flow in the network. However, the flow in the network is also influenced by the route choice decisions. This paper deals with traffic signal setting with demand assignment. All approaches proposed in literature to address this problem are based on equilibrium...
We evaluate the applicability of many-core architectures for the simulation of networks on chips (NoC). Compared to the well established shared memory multi-core architectures, many-core architectures significantly differ not only in the number of processing elements but also in the on-chip communication architecture, the memory subsystem, and the computational performance of an individual core. Proven...
We evaluate the applicability of many-core architectures for the simulation of networks on chips (NoC). Compared to the well established shared memory multi-core architectures, many-core architectures significantly differ not only in the number of processing elements but also in the on-chip communication architecture, the memory subsystem, and the computational performance of an individual core. Proven...
Traffic engineering is a key in effective utilisation of the road network infrastructure. Simulation assists traffic engineers making informed decisions on how to operate and direct traffic within the road networks. These simulations are complex, generate big data and require high-powered computers, which can process information faster than real time, to ensure the results can be used to affect traffic...
Scientific workflow management systems face a new challenge in the era of cloud computing. The past availability of rich information regarding the state of the used infrastructures is gone. Thus, organising virtual infrastructures so that they not only support the workflow being executed, but also optimise for several service level objectives (e.g., Maximum energy consumption limit, cost, reliability,...
RT-LAB simulation platform shows various abnormities in its application of complex electromechanical simulation system, which cause difficulty in operation. Aiming at these problems, this paper has described the abnormal phenomena, analyzed the reasons and presented the solutions. Time consumptions of communication blocks and digital IO blocks takes up a large proportion of simulation step time, which...
From a single SoC to a network of embedded devices communicating with a backend cloud-computing server, emerging classes of embedded systems feature an increasing number of heterogeneous components that operate concurrently in a distributed environment. As the scale and complexity of these systems continues to grow, there is a critical need for scalable and efficient simulators. We propose a networked...
Giotto is a time-triggered embedded programming language which provides an abstract programming model for hard real-time applications. It effectively decouples the imple- mentation from the design. A Giotto program focuses on the functionality and timing of periodic tasks. All the actions, e.g., task invocations, actuator updates, and mode switches, described in Giotto programs are triggered by real...
A visual traffic simulation framework has been developed for analyzing gas consumption and traffic flow, and for optimizing traffic lights. The city of North Bay, Canada, is targeted in this study, but the basic framework can be used and the same procedure followed to analyze traffic flow and gas usage in other cities with similar layouts. The simulation is in the form of an agent-based serious game...
Electronic System Level (ESL) design of embedded systems proposes raising the abstraction level of the design entry to cope with the increasing complexity of such systems. To exploit the benefits of ESL, design languages should allow specification of models which are a) heterogeneous, to describe different aspects of systems; b) formally defined, for application of analysis and synthesis methods;...
MapReduce is an important paradigm to support modern data-intensive applications. In this paper we address the challenge of modeling performance of one implementation of MapReduce called Hadoop Online Prototype (HOP), with a specific target on the intra-job pipeline parallelism. We use a hierarchical model that combines a precedence model and a queuing network model to capture the intra-job synchronization...
In this tutorial paper, we will firstly review some basic simulation concepts and then introduce the parallel and distributed simulation techniques in view of some new challenges of today and tomorrow. More in particular, in the last years there has been a wide diffusion of many cores architectures and we can expect this trend to continue. On the other hand, the success of cloud computing is strongly...
Software simulation is the primary tool used for evaluation of processor design. Simulation offers better accuracy than analytical models and is an important evaluation step before actually fabricating a chip. Unfortunately, simulator speeds are slow -- a conventional cycle-accurate simulator will be unable to keep up with increasing core counts in modern processor design. Parallel simulation is one...
In this paper, we introduce PoC (Proof of Concept) simulations with the recently developed agent-based simulation framework ZASE-U that has been constructed based on the large-scale agent-based simulation framework ZASE (Zonal Agent-based Simulation Environment). For the PoC of this framework, we use parallel auction simulations that synchronize execution time with auction cycles and shared prices...
Time Management (TM) is an integral part of the parallel and distributed systems that maintains the temporal order of events in a system. In this paper, we present a decentralised TM approach using a constrained communication model based on the inherent properties of virtual worlds. The proposed method uses a flat communication model and a region synchronises itself with a set of regions that share...
In order to improve the method of training the commander, the aerial instructor, back parachute commander, the guarantee unit and the aerial broadcaster, in this paper, we used Vega, Creator, and RTI implement the Parachute Jump Commanding And Simulation System to simulate the parachute jump commanding process. In this system, firstly, we used Creator build the 3D models that we need in the system;...
The paper presents an original theory of computing infrastructure, which is quasi-holographic-element system theory. Based on this theory, a new type model that is quasi-holographic element mathematical model is formed. It reflects kinds of operation relations of number. The characteristics of the new model check and store going the same way, synchronization of compute and check, integrative store...
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