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

Provided by: Carnegie Mellon University
Topic: Hardware
Format: PDF
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-core mapping policies to improve system performance by reducing inter-application interference in the on-chip network and memory controllers. The major new ideas of the authors' policies are to: 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, map those applications that benefit more from being closer to the memory controllers close to these resources.

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