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A Smart HPC Interconnect for Clusters of Virtual Machines

  • Anastassios Nanos
  • Nikos Nikoleris
  • Stratos Psomadakis
  • Elisavet Kozyri
  • Nectarios Koziris
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7156)

Abstract

In this paper, we present the design of a VM-aware, high-performance cluster interconnect architecture over 10Gbps Ethernet. Our framework provides a direct data path to the NIC for applications that run on VMs, leaving non-critical paths (such as control) to be handled by intermediate virtualization layers. As a result, we are able to multiplex and prioritize network access per VM. We evaluate our design via a prototype implementation that integrates RDMA semantics into the privileged guest of the Xen virtualization platform. Our framework allows VMs to communicate with the network using a simple user-level RDMA protocol. Preliminary results show that our prototype achieves 681MiB/sec over generic 10GbE hardware and relieves the guest from CPU overheads, while limiting the guest’s CPU utilisation to 34%.

Keywords

Virtual Machine Virtual Machine Monitor Ethernet Frame USENIX Annual Technical Grant Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Anastassios Nanos
    • 1
  • Nikos Nikoleris
    • 2
  • Stratos Psomadakis
    • 1
  • Elisavet Kozyri
    • 3
  • Nectarios Koziris
    • 1
  1. 1.Computing Systems LaboratoryNational Technical University of AthensGreece
  2. 2.Uppsala Architecture Research TeamUppsala UniversitySweden
  3. 3.Cornell UniversityUSA

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