Federate migration in HLA-based simulation

Cai, Wentong; Yuan, Zijing; Low, Malcolm Yoke Hean; Turner, Stephen J.

doi:10.1016/j.future.2004.09.019

Cited by 24 publications

(11 citation statements)

References 4 publications

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“…[2]. For decision making, models are required which take into account locality of and the communication patterns between the federates for their migration in the Grid.…”

Section: Resource Managementmentioning

confidence: 99%

Large Scale Distributed Simulation on the Grid

Theodoropoulos¹,

Zhang²,

Chen³

et al. 2006

Sixth IEEE International Symposium on Cluster Computing and the Grid (CCGRID'06)

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The development of many complex simulation applications requires collaborative effort from researchers with different domain knowledge and expertise, possibly at different locations. These simulation systems often require huge computing resources and data sets, which may be geographically distributed. In order to support collaborative model development and to cater for the increasing complexity of such systems, it is necessary to harness distributed resources over the Internet. The emergence of Grid technologies provide exciting new opportunities for large scale distributed simulation, enabling collaboration and the use of distributed computing resources, while also facilitating access to geographically distributed data sets. This paper discusses the research challenges that must be addressed before these opportunities can be exploited and presents HLA GRID REPAST, a system for executing large scale distributed simulations of agent based systems over the Grid.

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“…[2]. For decision making, models are required which take into account locality of and the communication patterns between the federates for their migration in the Grid.…”

Section: Resource Managementmentioning

confidence: 99%

Large Scale Distributed Simulation on the Grid

Theodoropoulos¹,

Zhang²,

Chen³

et al. 2006

Sixth IEEE International Symposium on Cluster Computing and the Grid (CCGRID'06)

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“…Workload balance among computers can be achieved by migrating federates (i.e., OS processes) from heavily-loaded computers to lightly-loaded computers. However, the existing federate migration protocols are too complex [5,18,28], as they must guarantee the state consistent in the entire federation and rebuild the connections among federates. Both of the above object and federate migration mechanisms require cooperation of simulation model developers and introduce considerable overhead on data transfer.…”

Section: Related Workmentioning

confidence: 99%

Hierarchical resource management for enhancing performance of large-scale simulations on data centers

Wang

et al. 2014

Proceedings of the 2nd ACM SIGSIM Conference on Principles of Advanced Discrete Simulation

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More and more interests have been shown to move largescale simulations on modern data centers composed of a large number of virtualized multi-core computers. However, the simulation components (Federates) consolidated in the same computer may have imbalanced simulation workloads. Similarly, the computers involved in the same simulation execution (Federation) may also have imbalanced simulation workloads. Hence, federates may waste a lot of computer resources on time synchronization with each other. In this paper, a hierarchical resource management system is proposed to enhance simulation execution performance. Federates in the federation are enraptured in their individual Virtual Machines (VMs), which are consolidated on a group of virtualized multi-core computers. On the computer level, multiple VMs share the resource of the computer according to the simulation workloads of their corresponding federates. On the federation level, some VMs are migrated for workload balance purpose. Therefore, computer resources are fully utilized to conduct useful simulation workloads, avoiding the synchronization overheads. Experiments using synthetic and real simulation workloads have verified that the hierarchical resource management system enhances simulation performance significantly.

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“…A Grid-based load management system for HLA-based distributed simulations was proposed in [1] and later extended with an efficient migration protocol in [2]. We also proposed a Grid service based framework for flexible execution of large scale HLA-based distributed simulations [18], in which RTI executive processes and federate models are encapsulated in Grid services for dynamic federation creation and management and an index service is provided for registration and dynamic discovery of the various Grid services.…”

Section: Related Workmentioning

confidence: 99%

“…Since the callbacks are buffered by the LRI, federate migration is simplified. The migration protocol proposed in [2] requires the source federate to flush all messages pending delivery and insert them in a queue. Then the queue is encoded and transferred to the migration destination where it gets decoded.…”

Section: Framework Overview Of Sohrmentioning

confidence: 99%

A Service Oriented HLA RTI on the Grid

Pan

Turner

Cai

et al. 2007

IEEE International Conference on Web Services (ICWS 2007)

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Modeling and simulation permeate all areas of business, science and engineering. To promote the interoperability and reusability of simulation applications and link geographically dispersed simulation components, distributed simulation was introduced. While the High Level Architecture (HLA) is the IEEE standard for distributed simulation, a Run Time Infrastructure (RTI) provides the actual implementation of the HLA. With increased size and complexity of simulation applications, large amounts of distributed computational and data resources are required. The Grid provides a flexible, secure and coordinated resource sharing environment which can facilitate distributed simulation execution. In this paper, we propose a Service Oriented HLA RTI (SOHR) framework which provides the functionalities of an RTI as Grid services and enables large scale distributed simulations to be conducted on a heterogeneous Grid environment. The various services in SOHR can be dynamically deployed, discovered and undeployed, leading to a scalable distributed simulation environment. While the communications between simulators are through Grid service invocations, the standard HLA interface is provided as a library to increase simulator reusability and interoperability. A subset of HLA specifications was implemented in a SOHR prototype based on GT4 and the experimental results have verified the feasibility of SOHR.

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Federate migration in HLA-based simulation

Cited by 24 publications

References 4 publications

Large Scale Distributed Simulation on the Grid

Large Scale Distributed Simulation on the Grid

Hierarchical resource management for enhancing performance of large-scale simulations on data centers

A Service Oriented HLA RTI on the Grid

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