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dc.contributor.authorBongo, Lars Ailo
dc.contributor.authorAnshus, Otto J.
dc.contributor.authorBjørndalen, John Markus
dc.date.accessioned2006-11-28T07:34:06Z
dc.date.available2006-11-28T07:34:06Z
dc.date.issued2003
dc.description.abstractWe have developed EventSpace, a configurable data collecting, management and observation system for monitoring low-level synchronization and communication events with the purpose of understanding the behavior of parallel applications on clusters and multi-clusters. Applications are instrumented by adding data collecting code in the form of event collectors to an applications communication paths. When triggered these create and store virtual events to a virtual event space. Based on the meta-data describing the communication paths, virtual events can be combined to provide different views of the applications communication behavior. We used the data collected by EventSpace to do a post-mortem analysis of a wind-tunnel application, a river simulator, global clock synchronization, and a hierarchical barrier benchmark. The views allowed us to detect anomalous communication behavior, detect load balance problems, analyze hierarchical barriers, synchronize the Pentium timestamp counters on the cluster nodes, and analyze the accuracy of the synchronization.en
dc.format.extent286627 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10037/366
dc.identifier.urnURN:NBN:no-uit_munin_213
dc.language.isoengen
dc.publisherUniversitetet i Tromsøen
dc.publisherUniversity of Tromsøen
dc.relation.ispartofseriesTekniske rapporter / Institutt for informatikk 44(2003)en
dc.rights.accessRightsopenAccess
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420en
dc.subjectVDP::Teknologi: 500::Informasjons- og kommunikasjonsteknologi: 550en
dc.titleUsing a virtual event space to understand parallel application communication behavioren
dc.typeResearch reporten
dc.typeForskningsrapporten


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