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Peer-to-peer-based resource management in support of HLA-based distributed simulations
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
2004 (English)In: Simulation (San Diego, Calif.), ISSN 0037-5497, E-ISSN 1741-3133, Vol. 80, no 4-5, 181-190 p.Article in journal (Refereed) Published
Abstract [en]

In recent years, the concept of peer-to-peer computing has gained renewed interest for sharing resources within and between organizations or individuals. This article describes a decentralized resource management system (DRMS) that uses a network of workstations for the execution and storage of high-level architecture (HLA) federations/federates in a peer-to-peer environment. The implementation of DRMS is based on the open-source project JXTA, which represents an attempt to standardize the peer-to-peer domain. DRMS is part of a Web-based simulation environment supporting collaborative design, development, and execution of HLA federations. This study evaluates the possibilities of using peer-to-peer technology for increasing the reuse and availability of simulation components within the defense modelling and simulation community. More specifically, it addresses the necessary adjustments of simulation components to conform to the requirements of the DRMS and shows that JXTA could provide the foundation for a distributed system that increases the possibilities for reusing simulation components.

Place, publisher, year, edition, pages
2004. Vol. 80, no 4-5, 181-190 p.
Keyword [en]
peer-to-peer environment, JXTA, high-level architecture (HLA), federation management, resource management
National Category
Computer Engineering
Identifiers
URN: urn:nbn:se:kth:diva-26062DOI: 10.1177/0037549704045050ISI: 000222622100002Scopus ID: 2-s2.0-3342915765OAI: oai:DiVA.org:kth-26062DiVA: diva2:369621
Note
QC 20101111Available from: 2010-11-11 Created: 2010-11-11 Last updated: 2011-10-28Bibliographically approved
In thesis
1. Fault-tolerance in HLA-based distributed simulations
Open this publication in new window or tab >>Fault-tolerance in HLA-based distributed simulations
2006 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Successful integration of simulations within the Network-Based Defence (NBD), specifically use of simulations within Command and Control (C2) environments, enforces a number of requirements. Simulations must be reliable and be able to respond in a timely manner. Otherwise the commander will have no confidence in using simulation as a tool. An important aspect of these requirements is the provision of fault-tolerant simulations in which failures are detected and resolved in a consistent manner. Given the distributed nature of many military simulations systems, services for fault-tolerance in distributed simulations are desirable. The main architecture for distributed simulations within the military domain, the High Level Architecture (HLA), does not provide support for development of fault-tolerant simulations.

A common approach for fault-tolerance in distributed systems is check-pointing. In this approach, states of the system are persistently stored through-out its operation. In case a failure occurs, the system is restored using a previously saved state. Given the abovementioned shortcomings of the HLA standard this thesis explores development of fault-tolerant mechanisms in the context of the HLA. More specifically, the design, implementation and evaluation of fault-tolerance mechanisms, based on check-pointing, are described and discussed.

Place, publisher, year, edition, pages
Stockholm: KTH, 2006. viii, 40 p.
Series
Trita-ICT-ECS AVH, ISSN 1653-6363 ; 06:03
Keyword
HLA, fault-tolerance, distributed simulations, federate, federation
National Category
Computer Engineering
Identifiers
urn:nbn:se:kth:diva-4063 (URN)
Presentation
2006-06-13, Sal D, KTH-Forum, Isafjordsgatan 39, plan 4, Kista, 14:15
Opponent
Supervisors
Note
QC 20101111Available from: 2006-06-25 Created: 2006-06-25 Last updated: 2010-11-11Bibliographically approved

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