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Implementing Standard Examples with NSA-DEVS 使用NSA-DEVS实现标准示例
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.tn.10623
David Jammer, P. Junglas, T. Pawletta, S. Pawletta
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引用次数: 0
Solving ARGESIM Benchmark CP2 'Parallel and Distributed Simulation' with Open MPI/GSL and Matlab PCT - Monte Carlo and PDE Case Studies 用开放MPI/GSL和Matlab PCT解决ARGESIM基准CP2“并行和分布式仿真”-蒙特卡罗和PDE案例研究
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.bncp2.10625
David Jammer, P. Junglas, S. Pawletta
{"title":"Solving ARGESIM Benchmark CP2 'Parallel and Distributed Simulation' with Open MPI/GSL and Matlab PCT - Monte Carlo and PDE Case Studies","authors":"David Jammer, P. Junglas, S. Pawletta","doi":"10.11128/sne.32.bncp2.10625","DOIUrl":"https://doi.org/10.11128/sne.32.bncp2.10625","url":null,"abstract":"The ARGESIM benchmark CP2 provides three different tasks to study current technologies for the parallelization of simulation programs. The first task is the Monte Carlo study. In this study, a spring-mass system is simulated with different damping factors. The second task is a Latice Boltzmann simulation in which the flow of a fluid in a special geomentry is simulated. The third problem is a partial differential equation (PDE) describing a swinging rope, which is solved by the Method of Lines. TheMonte Carlo and the PDE study are solved here, each one with two different methods: The first one applies the standard MPI message passing library together with the GNU Scientific Library, the second one uses Matlab from The MathWorks in combination with the Parallel Computing Toolbox. A special focus of this work is on the parallel processing functions provided byMatlab. The solutions are compared with each other in terms of performance and scalability. In most cases, the solutions with OpenMPI and GSL were faster than the solutions with Matlab PCT. The Matlab PCT offers many functionalities and applications to accelerate, but these usually have a poor runtime behavior. Introduction In simulation technology, methods to accelerate simulation were investigated in the early phases. The first benchmarks (CP1) of the SNE series dealing with this topic date back to 1994 [1] and were successfully solved and investigated with different technologies and on different platforms. This benchmark got an update (CP2) in 2007 [2] to adapt it to the increasing computing power. Unfortunately, no further solutions were submitted after this change. Since 2007, the computing power and the architecture of the hardware and software have changed a lot, so the parallel benchmarks should be brought back to life. In this paper, two tasks of CP2 will be investigated. The tasks were implemented with two different technologies. The first technology is the Message Passing Interface (MPI) [3] in version 4 together with the GNU Scientific Library (GSL) [4]. MPI was developed in the early 1990s and standardized in 1994. Since then MPI has been developed continuously and is still one of the standard technologies in parallel processing. MPI has been implemented by several institutes. In this paper Open MPI 4 [5] was used. GSL was developed in 1996 by M. Galassi and J. Theiler from Los Alamos National Laboratory and is currently updated and further developed. The solutions designed with it were implemented in the C language. Thus, the first solution is based on open source solutions.","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134511396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Compartment Modeling of Overweight in Toddler Age: Modeling and Simulating a Diets Effect with COPASI 幼儿期超重的隔室模型:用COPASI模型和模拟饮食效应
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.sn.10626
Priska Bauerstätter
{"title":"Compartment Modeling of Overweight in Toddler Age: Modeling and Simulating a Diets Effect with COPASI","authors":"Priska Bauerstätter","doi":"10.11128/sne.32.sn.10626","DOIUrl":"https://doi.org/10.11128/sne.32.sn.10626","url":null,"abstract":"","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125492006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reviewing Recommender Systems in the Medical Domain 回顾医学领域的推荐系统
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.tn.10624
Katharina Brunner, B. Hametner
{"title":"Reviewing Recommender Systems in the Medical Domain","authors":"Katharina Brunner, B. Hametner","doi":"10.11128/sne.32.tn.10624","DOIUrl":"https://doi.org/10.11128/sne.32.tn.10624","url":null,"abstract":". Medical recommender systems are increasing in popularity within the digital health sector. Two main principles for personalised support are just-in-time interventions, and adaptiveness of treatment. Intervention concepts using these principals are called JITAIs, and they aid clients in self-management for health-related issues. In this contribution, the JITAI framework is introduced, and its advantages for recommender systems are discussed. Mathematically, the JITAI concept can be interpreted as a contextual or regular multi-armed bandit problem, which is solved via a bandit algorithm. After discussing several algorithmic strategies of bandit algorithms and elaborating on their differences, the Thompson Sampling strategy is identified as a practical solution for real-life applications using the JTIAI framework. Sub-sequently, existing recommender systems based on the (contextual) multi-armed bandit approach are reviewed, and the disruption of the algorithm’s learning process by instances of missing data is found to be a prevalent obstacle. An algorithm called Thompson Sampling with Re-stricted Context is put forward as a solution, where missing data is processed within the bandit setting.","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124658043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Methods for Integrated Simulation - 10 Concepts to Integrate 集成仿真方法-集成10个概念
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.on.10627
N. Popper, M. Bicher, F. Breitenecker, Barbara Glock, I. Hafner, M. Mota, G. Mušič, C. Rippinger, M. Rössler, G. Schneckenreither, C. Urach, Matthias Wastian, G. Zauner, M. Zechmeister
{"title":"Methods for Integrated Simulation - 10 Concepts to Integrate","authors":"N. Popper, M. Bicher, F. Breitenecker, Barbara Glock, I. Hafner, M. Mota, G. Mušič, C. Rippinger, M. Rössler, G. Schneckenreither, C. Urach, Matthias Wastian, G. Zauner, M. Zechmeister","doi":"10.11128/sne.32.on.10627","DOIUrl":"https://doi.org/10.11128/sne.32.on.10627","url":null,"abstract":"","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128481329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Open Source Tool for Calculating CO2 Pipeline Decompression Wave Speed 计算CO2管道减压波速的开源工具
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.tn.10622
A. Andreasen, Leandro-Henrique Sousa, Geir Ágústsson
{"title":"An Open Source Tool for Calculating CO2 Pipeline Decompression Wave Speed","authors":"A. Andreasen, Leandro-Henrique Sousa, Geir Ágústsson","doi":"10.11128/sne.32.tn.10622","DOIUrl":"https://doi.org/10.11128/sne.32.tn.10622","url":null,"abstract":"","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115042314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Issues of Fitness for Purpose in Train Simulation Models: a Review 列车仿真模型的目的适应度问题综述
Simul. Notes Eur. Pub Date : 2022-12-01 DOI: 10.11128/sne.32.on.10621
D. Murray-Smith
{"title":"Issues of Fitness for Purpose in Train Simulation Models: a Review","authors":"D. Murray-Smith","doi":"10.11128/sne.32.on.10621","DOIUrl":"https://doi.org/10.11128/sne.32.on.10621","url":null,"abstract":"","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"7 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114052157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulating and Evaluating Different Boarding Strategies on the Example of the Airbus A320 以空客A320为例,不同登机策略的仿真与评价
Simul. Notes Eur. Pub Date : 2021-12-01 DOI: 10.11128/sne.31.tn.10585
Jürgen Wunderlich
{"title":"Simulating and Evaluating Different Boarding Strategies on the Example of the Airbus A320","authors":"Jürgen Wunderlich","doi":"10.11128/sne.31.tn.10585","DOIUrl":"https://doi.org/10.11128/sne.31.tn.10585","url":null,"abstract":". Based on an Airbus A320 simulation model, this paper compares the boarding times of random boarding with the most frequently applied boarding strategy back-to-front boarding as well as the alternatives outside-in boarding and back-to-front combined with outside-in boarding. The study shows that, on the one hand, outside-in boarding can reduce boarding times by more than 12%, but on the other hand, this also requires a high degree of discipline. As boarding is part of the turnaround process, shorter boarding times mean faster take offs and allow an airport to handle a higher number of planes.","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128178492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ARGESIM Benchmark C7 'Constrained Pendulum' - Solution in MATLAB Environment and Extensions with Linear Approach, Symbolic Approach, Sensitivity, and Integration into TU Vienna's MMT E-Learning Environment ARGESIM基准C7“约束摆”-在MATLAB环境中的解决方案和扩展线性方法,符号方法,灵敏度,并集成到TU维也纳的MMT电子学习环境
Simul. Notes Eur. Pub Date : 2021-12-01 DOI: 10.11128/sne.31.bne07.10589
M. Grujić, Jakob Haupt, Ypti Hossain, Lorenz Klimon, Paul Setinek, F. Breitenecker
{"title":"ARGESIM Benchmark C7 'Constrained Pendulum' - Solution in MATLAB Environment and Extensions with Linear Approach, Symbolic Approach, Sensitivity, and Integration into TU Vienna's MMT E-Learning Environment","authors":"M. Grujić, Jakob Haupt, Ypti Hossain, Lorenz Klimon, Paul Setinek, F. Breitenecker","doi":"10.11128/sne.31.bne07.10589","DOIUrl":"https://doi.org/10.11128/sne.31.bne07.10589","url":null,"abstract":". The ARGESIM Benchmark ‘C7 Constrained Pendulum’ is based on the dynamics of a pendulum which hits a pin: hit and release of the pin is a state event, which has to be managed properly. This Educational Benchmark Note, a detailed Benchmark Study, presents four issues for this benchmark. First, the study describes classical approaches, implementation and results for the requested benchmark tasks in MATLAB, Simulink and Stateflow, put-ting emphasis on the quality of event finding. Second, the study investigates in detail the possibilities of the linear pendulum model for event management: ODE approach, state space approach with exponential matrix, approach with analytical solution, and approach with symbolic computation. Third, the study sketches sensitivity analysis for the model, and fourth, the study presents the implementation of the model into TU Vienna’s MMT E-Learning Server for education in modelling and simulation (MMT – Mathematics – Modelling – Tools).","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128602184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of a Discharge Electrode Needle for Particle Charging in an Electrostatic Precipitator 静电除尘器中微粒充电放电电极针的模拟
Simul. Notes Eur. Pub Date : 2021-12-01 DOI: 10.11128/arep.59.a59012
Sebastian Beckers, J. Pawlik, H. Eren, Adam Sanaf, J. Kiel
{"title":"Simulation of a Discharge Electrode Needle for Particle Charging in an Electrostatic Precipitator","authors":"Sebastian Beckers, J. Pawlik, H. Eren, Adam Sanaf, J. Kiel","doi":"10.11128/arep.59.a59012","DOIUrl":"https://doi.org/10.11128/arep.59.a59012","url":null,"abstract":". This paper describes a model approach for the simulation of a discharge electrode (DE) needle to charge particles using positive ions in an electrostatic precipitator. This includes the simulation of the electrostatic field, the space charge field of the ions and the flow field at the DE needle. The interactions of the fields, e.g. the reaction of the space charge on the electrostatic field or the electric wind are also considered in the model. To simplify and ac-celerate the simulation, a radial symmetry around the DE needle is partly assumed. The results of the simulation are validated by comparing the experimentally determined current-voltage characteristic with the simulated one, which show a satisfying correlation. Therefore, this model can be used as a basis for future particle flight simulation and further investigations.","PeriodicalId":262785,"journal":{"name":"Simul. Notes Eur.","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127159571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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