Enabling fine-grained load balancing for virtual worlds with distributed simulation engines

Valadares, Arthur; Lopes, Cristina Videira; Liu, Huaiyu

doi:10.1109/wsc.2014.7020178

Cited by 2 publications

(3 citation statements)

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“…In DSG with Microcells (DSG-M) [19] we redesigned DSG to push scalability further, by allowing simultaneous decoupling of operations and space through microcell partitions [14]. DSG-M allows for simulators to be partitioned in both dimensions, enabling better adaptation to load.…”

Section: A Dves and Opensimulatormentioning

confidence: 99%

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On designing and testing distributed virtual environments

Valadares

Gabrielova

Lopes

2016

Concurrency and Computation

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Summary Distributed real‐time (DRT) systems are among the most complex software systems to design, test, maintain, and evolve. The existence of components distributed over a network often conflicts with real‐time requirements, leading to design strategies that depend on domain‐specific and even application‐specific knowledge. Distributed virtual environment (DVE) systems are DRT systems that connect multiple users instantly with each other and with a shared virtual space over a network. DVE systems deviate from traditional DRT systemsx in the importance of the quality of the end user experience. We present an analysis of important, but challenging, issues in the design, testing, and evaluation of DVE systems through the lens of experiments with a concrete DVE, OpenSimulator. We frame our observations within six dimensions of well‐known design concerns: correctness, fault tolerance/prevention, scalability, time sensitivity, consistency, and overhead of distribution. Furthermore, we place our experimental work in a broader historical context, showing that these challenges are intrinsic to DVEs and suggesting lines of future research. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: A Dves and Opensimulatormentioning

confidence: 99%

“…This setup had two sub-cases, active and passive subscriptions, details of which are out of scope for this article. For more information, refer to the original paper [19].…”

Section: Setupmentioning

confidence: 99%

On designing and testing distributed virtual environments

Valadares

Gabrielova

Lopes

2016

Concurrency and Computation

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“…The fundamental concept behind USP derives from our previous work: the Distributed Scene Graph with Microcells (DSG-M) (Valadares et al 2014). DSG-M is a distributed virtual environment architecture that achieves scalability by employing a space and functional criteria for simulation distribution.…”

Section: Prior and Related Workmentioning

confidence: 99%

An aspect-oriented approach to large-scale urban simulations

Valadares¹,

Lopes²

2015

2015 Winter Simulation Conference (WSC)

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Within the Modeling and Simulation (M&S) field, a major challenge that lies ahead is integrating massively complex urban simulations. The urban environment is a multifaceted model with many components, such as transportation, land use, and water and power distribution. To produce a high fidelity simulation of a city, all components should interact as they do in the real world. Furthermore, an urban simulation should be within an ecosystem of cities, states, and nations.This study presents an aspect-oriented approach for designing distributed simulations that achieves 2 goals: 1) enables M&S experts to focus on the simulation, not on the platform or on interoperability; and 2) is scalable in terms of simulated entities and models. A middleware called Urban Simulation Platform is proposed, using an aspect-oriented approach to interface between the well known High Level Architecture interoperability standard and the traditional simulation design.

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Enabling fine-grained load balancing for virtual worlds with distributed simulation engines

Cited by 2 publications

References 14 publications

On designing and testing distributed virtual environments

On designing and testing distributed virtual environments

An aspect-oriented approach to large-scale urban simulations

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