Increasing NoC performance and utilisation using a Dual Packet Exit strategy
2007 (English)In: DSD 2007: 10TH EUROMICRO CONFERENCE ON DIGITAL SYSTEM DESIGN ARCHITECTURES, METHODS AND TOOLS, PROCEEDINGS / [ed] Kubatova, H, LOS ALAMITOS: IEEE COMPUTER SOC , 2007, 511-518 p.Conference paper (Refereed)
When designing a network the use of buffers is inevitable. Buffers are used at the entry point, inside and at the exits of the network. The usage of these buffers significantly changes the performance of the system. as a whole. In order to enhance the buffer utilisation the concept of letting more than one packet exit the network at every switch each clock cycle is introduced - Dual Packet Exit (DPE). The approach is tried on a 4x4 and a 6x6 mesh. We demonstrate the buffers used in combination with different routing strategies for best effort performance. The result we present shows a 50% reduction in terms of worst case latency and a 30% reduction in terms of average latency as well as an increased throughput both from a system and network perspective. We define the term Operational Efficiency as a measure of the network efficiency and show that it increases by roughly 20 % with the DPE technique.
Place, publisher, year, edition, pages
LOS ALAMITOS: IEEE COMPUTER SOC , 2007. 511-518 p.
Computer networks; Electric network topology; Switching circuits; Systems analysis
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-39435DOI: 10.1109/DSD.2007.4341516ISI: 000251463100074ScopusID: 2-s2.0-47749149537ISBN: 978-0-7695-2978-3OAI: oai:DiVA.org:kth-39435DiVA: diva2:440384
10th Euromicro Conference on Digital System Design Architectures, Methods and Tools. Lubeck, GERMANY. AUG 29-31, 2007
QC 201109122011-09-122011-09-092011-11-24Bibliographically approved