On Compact Mappings for Multicore Systems

Andrés Goens, Christian Menard, Jeronimo Castrillon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

Application mapping is key for efficient multicore processing, i.e., selecting which resources to allocate to a given application, like computation to cores. Mapping is increasingly difficult in multi-application scenarios, where resource contention might degrade the performance of an application. In order to solve this, a promising avenue is to consider ``compact'' mappings, those which require a small and (geometrically) compact area within the chip. Compact mappings should decrease contention between applications by providing regional isolation and allowing multiple applications to be mapped simply. Previous work has shown that compact mappings can significantly outperform mappings obtained with a random strategy. In this paper we investigate the promise of compact mappings by running extensive simulations on Noxim, a cycle-accurate network-on-chip simulator. Results show the promises of compact mappings do not hold up in practice. When comparing to mappings selected with a heuristic better than simply choosing cores at random, our experiments do not indicate significant advantages from compact mappings. We outline possible reasons for this.
Original languageEnglish
Title of host publicationEmbedded Computer Systems: Architectures, Modeling, and Simulation
Subtitle of host publication19th International Conference, SAMOS 2019, Samos, Greece, July 7–11, 2019, Proceedings
EditorsDionisios N. Pnevmatikatos, Maxime Pelcat, Matthias Jung
Place of PublicationCham
PublisherSpringer International Publishing AG
Pages325-335
Number of pages11
ISBN (Electronic)978-3-030-27562-4
ISBN (Print)978-3-030-27561-7
DOIs
Publication statusPublished - 8 Aug 2019
EventInternational Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation (SAMOS XIX) - Samos, Greece
Duration: 7 Jul 201911 Jul 2019
Conference number: 19
https://www.samos-conference.com/Previous_Samos_Websites/SAMOS_2019/index.html

Publication series

NameLecture Notes in Computer Science
PublisherSpringer, Cham
Volume11733
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

ConferenceInternational Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation (SAMOS XIX)
Abbreviated titleSAMOS 2019
Country/TerritoryGreece
CitySamos
Period7/07/1911/07/19
Internet address

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