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--- start [2023/09/02 12:44] – gda
+++ start [2025/07/17 19:43] (current) – gda
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-===== NEW PAPER: A Review of Multilevel Modeling and Simulation for Human Mobility and Behavior =====
+===== NEW PAPER: Performance evaluation of a self-clustering heuristic for adaptive PADS =====
-In this paper we perform a systematic literature review of multilevel simulation applied to human mobility and behavior, to identify research trends and contribute towards a better understanding of techniques, methodologies and terminology used within this research area. At the end of our analysis we uncover some recurrent modeling and simulation patterns that appear frequently within specific research areas, and we classify these methodological patterns along several dimensions such as modeling type and level of detail.
+Parallel And Distributed Simulation (PADS) is a well known modeling paradigm that allows efficient implementation of large simulation models as a collection of interacting entities, called Simulated Entities (SEs). SEs can then be assigned to independent execution units for parallel execution, if possible. Allocating SEs to execution units is one of the most challenging problems in PADS: ideally, highly interacting SEs should be placed on the same execution unit so that all communications are local; however, placing too many SEs on the same processor might degrade performance. Furthermore, many simulation models exhibit non-uniform computation and communication patterns among components, that might change during execution at unpredictable times. In this paper we propose a clustering heuristic that exploits communication locality, with the aim to reduce the communication cost experienced by the PADS during the execution. The heuristic adapts automatically to changing interaction patterns by migrating SEs, and can do so without any user-visible modification of the simulation model; there are, however, some parameters that can be used to tune the heuristic. We perform a large set of computational experiments to assess the effectiveness of the heuristic on a real-world scenario, with the aim of guiding the users in selecting optimal values of the heuristic parameters.
-For more information follow [[multiscale|this link]].
+For more information follow [[dsrt2025|this link]].
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-===== NEW PAPER: Adaptive Parallel and Distributed Simulation of Complex Networks =====
+===== NEW PAPER: A Review of Multilevel Modeling and Simulation for Human Mobility and Behavior =====
-In this paper we present a study on the intricate problem of the simulation of large scale complex networks. The complexity of the simulation is due to the need to represent networks with a high number of nodes and links, but even more to the need to model interactions among network nodes. We focus on discrete-event simulation, a simulation methodology that enables both sequential (i.e. monolithic) and parallel/distributed simulation (i.e. PADS) approaches.
+In this paper we perform a systematic literature review of multilevel simulation applied to human mobility and behavior, to identify research trends and contribute towards a better understanding of techniques, methodologies and terminology used within this research area. At the end of our analysis we uncover some recurrent modeling and simulation patterns that appear frequently within specific research areas, and we classify these methodological patterns along several dimensions such as modeling type and level of detail.
-For more information follow [[jpdc2021-paper|this link]].
+For more information follow [[multiscale|this link]].
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-===== SOFTWARE: LUNES-Blockchain preview =====
-A preview version of the LUNES-Blockchain simulator (i.e. agent-based simulation of DLTs and Blockchains) has been published in form of source code in the [[pads:download|Download]] section. LUNES-Blockchain is based on the ARTÌS/GAIA simulators.
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-===== NEW PAPER: Internet-based Adaptive Distributed Simulation of Mobile Ad-hoc Networks =====
-In this paper we focus on Internet-based simulation, a form of distributed simulation in which a set of execution units that are physically located around the globe work together to run a simulation model. We simulate a wireless model over a real Internet-based distributed simulation setup, and evaluate the scalability of the simulator with and without the use of adaptive strategies for both communication overhead reduction and load-balancing enhancement.
-For more information follow [[wsc2019-paper|this link]].
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-===== NEW PAPER: Agent-based Simulation of Blockchains =====
-In this paper, we describe LUNES-Blockchain, an agent-based simulator of blockchains that is able to exploit Parallel and Distributed Simulation (PADS) techniques to offer a high level of scalability.
-For more information follow [[asiasim2019-paper|this link]].
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-===== NEW PAPER: Parallel Data Distribution Management on Shared-Memory Multiprocessors =====
-In this paper we propose two parallel solutions to the DDM problem that can operate effectively on shared-memory multiprocessors.
-For more information follow [[parallelDDM-paper|this link]].