file.pdf (630.51 kB)
Download file

Application-to-Core Mapping Policies to Reduce Memory System Interference in Multi-Core Systems

Download (630.51 kB)
journal contribution
posted on 01.02.2013, 00:00 authored by Reetuparna Das, Rachata Ausavarungnirun, Onur Mutlu, Akhilesh Kumar, Mani Azimi

Future many-core processors are likely to concurrently execute a large number of diverse applications. How these applications are mapped to cores largely determines the interference between these applications in critical shared hardware resources. This paper proposes new application-to-coremapping policies to improve system performance by reducing inter-application interference in the on-chip network and memory controllers. The major new ideas of our policies are to: 1) map network-latency-sensitive applications to separate parts of the network from network-bandwidth-intensive applications such that the former can make fast progress without heavy interference from the latter, 2)map those applications that benefit more from being closer to the memory controllers close to these resources. Our evaluations show that, averaged over 128 multiprogrammed workloads of 35 different benchmarks running on a 64-core system, our final application-to-core mapping policy improvessystem throughput by 16.7% over a state-of-the-art baseline, while also reducing system unfairness by 22.4% and average interconnect power consumption by 52.3%.


Publisher Statement

© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.



Usage metrics