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Guaranteed periodic real-time communication over wormhole switched networks
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).ORCID iD: 0000-0002-6526-3931
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).
2000 (English)In: Parallel and distributed computing systems: proceedings of the ISCA 13th international conference, Las Vegas, Nevada, USA, August 8 - 10, 2000 / [ed] Ghulam Chaudhry; Edwin Sha, Raleigh, NC: INTERNATIONAL SOCIETY COMPUTERS & THEIR APPLICATIONS (ISCA) , 2000, 632-639 p.Conference paper, (Refereed)
Abstract [en]

In this paper, we investigate how to efficiently implement TDMA (Time Division Multiple Access) on a wormhole switched network using a pure software solution in the end nodes. Transmission is conflict free on the time-slot level and hence deadlock free. On the sub- slot level, however, conflicts are possible when using early sending, a method we propose in order to reduce latency while still not hazarding the TDMA schedule. We propose a complete system to offer services for dynamic establishment of guaranteed periodic real-time virtual channels. Two different clock synchronization approaches for integration into the TDMA system are discussed. Implementation and experimental studies have been done on a cluster of PCs connected by a Myrinet network. Also, a case study with a radar signal processing application is presented to show the usability. A best-case reduction of the latency of up to 37 percent for 640 Byte messages by using early sending in Myrinet is shown in the case study. Source routed wormhole switching networks are assumed in the work but the results are applicable on some other categories of switched networks too.

Place, publisher, year, edition, pages
Raleigh, NC: INTERNATIONAL SOCIETY COMPUTERS & THEIR APPLICATIONS (ISCA) , 2000. 632-639 p.
Keyword [en]
Parallel computing, Real-time communication
National Category
Computer Engineering
Identifiers
URN: urn:nbn:se:hh:diva-2756ISI: 000179773600099Local ID: 2082/3158ISBN: 1-880843-34-X OAI: oai:DiVA.org:hh-2756DiVA: diva2:239974
Conference
13th International Conference on Parallel and Distributed Computing Systems (PDCS-00), Las Vegas, NV, USA, Aug. 8-10, 2000
Available from: 2009-08-13 Created: 2009-08-13 Last updated: 2014-01-23Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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