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11th International Conference on Modeling and Applied simulation, MAS 2012, Held at the International Multidisciplinary Modeling and simulation Multiconference, I3M 2012

作者： Riismaa, Tiit Institute of Cybernetics at Tallinn University of Technology Akadeemia tee 21 Tallinn 12618 Estonia

ISBN: (纸本)9781629934853

A method of description and optimization of the structure of horizontally homogeneous multi-level parallel and distributed processing systems is presented. the set of feasible structures for such class of systems is defined. the description of this set is constructed in terms of the graph theory. For representation, the feasible set of structures, a condition for adjacency matrixes of adjacent levels is derived. For the reduced statement, two types of variable parameters are defined: for the level size and for the relations of adjacent levels. the formalism considered here, enables to state the structure optimization problem as a two-phase mutually dependent discrete optimization problem and to construct some classes of effective solution methods. Modelling and optimization of the structure of multilevel processing system illustrates the considered approach.

关键词： Mathematical programming

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TIMING ANALYSIS FOR DIGITAL FAULT simulation USING ASSIGNABLE DELAYS.

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1974年 266-272页

作者： thompson, E.W. Szygenda, S.A. Billawala, N. Pierce, R.

the techniques described are generally applicable to any time domain, parallel fault, digital logic simulation system. the particular implementation was done on the CC-TEGAS3 system and quoted results are from this system. the CC-TEGAS3 system is a time domain digital logic simulation system comprised of different models that can be used for simulating digital networks with varying degrees of accuracy and cost. the first technique to be considered provides accuracy of fault simulation when using assignable nominal delays for different element types. the second technique provides for handling fault induced activity in a network, in such a way as to considerably reduce the amount of simulation time required.

关键词： LOGIC CIRCUITS

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distributed virtual reality in education 07

Distributed virtual reality in education

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11th IEEE International Symposium on distributed simulation and Real-Time Applications, DS-RT 2007

作者： Kaufmann, Hannes Vienna University of Technology Interactive Media Systems Group Vienna Austria Institute of Software Technology and Interactive Systems Vienna University of Technology VR Group

ISBN: (纸本)0769530117

Educational virtual reality (VR) applications have a huge potential to support learning and teaching. A brief overview of previous educational VR applications will be followed by a summary of requirements specific to this field. In a typical collaborative classroom situation where large groups of users must be supported, as well as in distance education, robust and reliable networked environments are of primary importance. the speaker will present Construct3D, an application for geometry education that has been developed at the VR group at Vienna University of Technology throughout the past 6 years. Specific design aspects to allow distributed collaboration in Construct3D are presented. this concerns improvements of the user interface, usability and system performance including bandwidth efficiency. the results of three evaluations, some of them in co-located and distributed setups, with a total of more than 500 students in over 300 teaching lessons will be presented. © 2007 IEEE.

关键词： Virtual reality

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Proceedings of the 11th workshop on Implementation, Compilation, Optimization of Object-Oriented Languages, Programs and Systems, ICOOOLPS 2016

Proceedings of the 11th Workshop on Implementation, Compilat...

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11th workshop on Implementation, Compilation, Optimization of Object-Oriented Languages, Programs and Systems, ICOOOLPS 2016

ISBN: (纸本)9781450348379

the proceedings contain 8 papers. the topics discussed include: TruffleReloader: a low-overhead language-neutral reloader;MHDeS: deduplicate method handle graph for efficient dynamic JVM language implementations;building object-oriented programs out of pieces;source language representation of function summaries in static analysis;Sulong - execution of LLVM-based languages on the JVM;the performance of object encodings in JavaScript;efficient profiling of actor-based applications in parallel and distributed systems;and demo of docking: enabling language based dynamic coupling.

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Visualisation of distributed Systems simulation Made Simple 11

Visualisation of Distributed Systems Simulation Made Simple

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11th IEEE Int Conf on Cloud Comp Technol and Sci (CloudCom) / 19th IEEE Int Conf Comp and Informat Technol (CIT) / 2019 Int workshop on Resource Brokering with Blockchain (RBchain) / Asia-Pacific Serv Comp Conf (APSCC)

作者： King, Jayden Kim, Young Ki Lee, Young Choon Hong, Seok-Hee Macquarie Univ Dept Comp Sydney NSW Australia Univ Sydney Sch Comp Sci Sydney NSW Australia

ISBN: (纸本)9781728150116

distributed (computing) systems come in various sizes and scale. they range from a single workstation computer with several processors, a cluster of compute nodes (servers) to a federation of geographically distributed data centres with millions of servers. Job scheduling is a fundamental aspect for data centre efficiency. In this paper, we present ds-viz as a visualisation aid for ds-sim, a recently developed distributed systems simulator. In particular, ds-viz significantly helps leverage the evaluation and analysis of scheduling algorithms that ds-sim facilitates to design. We show the effectiveness of these tools with some examples.

关键词： Cloud computing distributed systems Scheduling Simulator Visualization

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Cellular Neural Networks simulation on a parallel Graphics Processing Unit

Cellular Neural Networks Simulation on a Parallel Graphics P...

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11th International workshop on Cellular Neural Networks and their Applications

作者： Fernandez, Andres Martin, Ruben San Farguell, Enric Pazienza, Giovanni Egidio Univ Ramon Llull Grp Rec Tecnol Audiovisuals & Multimedia Quatre Camins 2 Barcelona Spain Univ Ramon Llull Grp Recerca & Sistemes Intelligent Engn Barcelona Spain

ISBN: (纸本)9781424420896

the last generation of graphics cards hosts an array of processors, which can be efficiently employed to simulate the Cellular Neural Networks dynamic. In this paper we show an implementation done using CUDA (Compute Unified Device Architecture), a language expressively created for architectures with a multiprocessor core. We compare the results with an optimized CNN implementation on CPU, showing how the current graphics cards technology can be competitively applied to this field.

关键词： Cellular neural networks

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Joint User Scheduling and Beam Selection in mmWave Networks Based on Multi-Agent Reinforcement Learning 11

Joint User Scheduling and Beam Selection in mmWave Networks ...

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IEEE 11th Sensor Array and Multichannel Signal Processing workshop (SAM)

作者： Xu, Chunmei Liu, Shengheng Zhang, Cheng Huang, Yongming Yang, Luxi Southeast Univ Sch Informat Sci & Engn Nanjing 210096 Peoples R China Purple Mt Labs Nanjing 210096 Peoples R China

ISBN: (数字)9781728119465

ISBN: (纸本)9781728119465

In this paper, we consider a multi-cell downlink mmWave communication network and investigate an efficient transmission scheme for all base stations. Since the beams are highly directed with respected to the user equipments, user scheduling and beam selection strategy should be jointly considered. the objective is to develop the joint user scheduling and beam selection strategy that minimizes the long-term average delay cost while satisfying the instantaneous quality of service constraint of each user. To achieve the long-term performance, a distributed algorithm is proposed to develop the joint strategy based on multi-agent reinforcement learning. simulation results validate the effectiveness of the proposed intelligent distributed method.

关键词： Millimeter wave communication user scheduling beam selection distributed algorithm multi-agent reinforcement learning

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parallel Particles (P2): A parallel Position Based Approach for Fast and Stable simulation of Granular Materials 11

Parallel Particles (P2): A Parallel Position Based Approach ...

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11th workshop on Virtual Reality Interactions and Physical simulations, VRIPHYS 2014

作者： Holz, D. Cm Labs Simulations Canada

ISBN: (纸本)9783905674712

Granular materials exhibit a large number of diverse physical phenomena which makes their numerical simulation challenging. When set in motion they flow almost like a fluid, while they can present high shear strength when at rest. those macroscopic effects result from the material's microstructure: A particle skeleton with interlocking particles which stick to and slide across each other, producing soil cohesion and friction. For the purpose of Earthmoving equipment operator training, we developed parallel Particles (P2), a fast and stable position based granular material simulator which models inter-particle friction and adhesion and captures the physical nature of soil to an extend sufficient for training. Our parallel solver makes the approach scalable and applicable to modern multi-core architectures yielding the simulation speed required in this application. Using a regularization procedure, we successfully model visco-elastic particle interactions on the position level which provides real, physical parameters allowing for intuitive tuning. We employ the proposed technique in an Excavator training simulator and demonstrate that it yields physically plausible results at interactive to real-Time simulation rates. © the Eurographics Association 2014.

关键词： Granular materials

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DRL: A distributed real-time logic language

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COMPUTER LANGUAGES 1997年第2-4期23卷 87-120页

作者： Diaz, M Rubio, B Troya, JM Univ Malaga Dpto Lenguajes & Ciencias Computac E-29071 Malaga Spain

this paper presents a new language that integrates the real-time and distributed paradigms within the framework of a concurrent logic language. Concurrent logic languages (CLLs) are capable of expressing concurrence, communication and nondeterminism in a natural way. that is, the intrinsic parallel semantics of the concurrent logic languages makes them well-suited for distributed programming. the proposed language is particularly suitable for loosely coupled systems and it contains mechanisms for distributed and real-time process control. A new execution model for concurrent logic languages is presented, which enables efficient distributed execution and real-time control. the model is introduced by giving an operational semantics for the language and the new model's implementation is discussed, including the definition of a new abstract machine and its implementation on a network of Unix workstations. Although the sequential core is not optimized, some previous results are discussed, showing the feasibility of the language's execution model for distributed real-time systems. the language is currently being used as the kernel language for a distributed simulation and validation tool for communication protocols. (C) 1997 Elsevier Science Ltd. All rights reserved.

关键词： Formal languages

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parallel-distributed time-domain circuit simulation of power distribution networks with frequency-dependent parameters 06

Parallel-distributed time-domain circuit simulation of power...

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11th Asia and South Pacific Design Automation Conference

作者： Watanabe, Takayuki Tanji, Yuichi Kubota, Hidemasa Asai, Hideki Univ Shizuoka Sch Adm & Informat Suruga Ku 52-1 Yada Shizuoka 4228526 Japan Kagawa Univ Fac Engn Syst Engn Dept Reliabil based Informat Takamatsu Kagawa 760 Japan Shizuoka Univ Fac Engn Dept Syst Engn Hamamatsu Shizuoka 4328561 Japan

ISBN: (纸本)0780394518

In this paper, we focus on the verification of the PCB/Package power integrity, which becomes very important for the design of state-of-art high speed digital circuits. the simulation of power distribution networks (PDNs) of the PCB/Package, which can be modeled as a large number of RLC lumped components, is a time-consuming task for using the conventional circuit simulator, such as SPICE. For this problem, we propose a parallel-distributed time-domain circuit simulation algorithm based on LIM. Furthermore, an effective modeling of frequency-dependencies of the PDNs, such as skin effects and dielectric losses, to solve by LIM is proposed.

关键词： Time domain analysis Circuit simulation Power systems Frequency Packaging Dielectric losses Digital circuits RLC circuits SPICE Skin effect

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