Ffault localization in NoCs by timed heartbeats
| dc.contributor.author | Fechner, Bernhard | |
| dc.contributor.author | Garbade, Arne | |
| dc.contributor.author | Weis, Sebastian | |
| dc.contributor.author | Ungerer, Theo | |
| dc.contributor.editor | Mühl, Gero | |
| dc.contributor.editor | Richling, Jan | |
| dc.contributor.editor | Herkersdorf, Andreas | |
| dc.date.accessioned | 2019-10-30T12:50:11Z | |
| dc.date.available | 2019-10-30T12:50:11Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | Future computing systems will contain more and more cores on a single die. Permanent faults occur not only during manufacturing but may also arise at runtime. To detect these faults, a group of cores is monitored by a single unit, receiving heartbeats from all cores. In this paper, we present a simple method to localize permanent faults in a 2D mesh-based NoC by using heartbeats and by measuring the time from source (core) to destination (monitoring unit). We introduce a heartbeat network along with the normal application message network to guarantee a deterministic heartbeat timing and no interferences with application messages. If the time for a heartbeat exceeds a given interval, it can be concluded that the heartbeat is missing or delayed, e.g. because of a faulty core, link or router. As this is not sufficient to localize a fault, we introduce the concept of Timed Heartbeats, which uses different routing directions in contrary to the intended routing to introduce a fixed, additional delay for rerouted heartbeats. The delay helps to localize the fault without any additional bandwidth consumption. | en |
| dc.identifier.isbn | 978-3-88579-294-9 | |
| dc.identifier.pissn | 1617-5468 | |
| dc.identifier.uri | https://dl.gi.de/handle/20.500.12116/29491 | |
| dc.language.iso | en | |
| dc.publisher | Gesellschaft für Informatik e.V. | |
| dc.relation.ispartof | ARCS 2012 Workshops | |
| dc.relation.ispartofseries | Lecture Notes in Informatics (LNI) - Proceedings, Volume P-200 | |
| dc.title | Ffault localization in NoCs by timed heartbeats | en |
| dc.type | Text/Conference Paper | |
| gi.citation.endPage | 200 | |
| gi.citation.publisherPlace | Bonn | |
| gi.citation.startPage | 191 | |
| gi.conference.date | 28. Februar-2. März 2012 | |
| gi.conference.location | München | |
| gi.conference.sessiontitle | Regular Research Papers |
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