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MyriXen: Message Passing in Xen Virtual Machines over Myrinet and Ethernet

  • Anastassios Nanos
  • Nectarios Koziris
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6043)

Abstract

Data access in HPC infrastructures is realized via user-level networking and OS-bypass techniques through which nodes can communicate with high bandwidth and low-latency. Virtualizing physical components requires hardware-aided software hypervisors to control I/O device access. As a result, line-rate bandwidth or lower latency message exchange over 10GbE interconnects hosted in Cloud Computing infrastructures can only be achieved by alleviating software overheads imposed by the Virtualization abstraction layers, namely the VMM and the driver domains which hold direct access to I/O devices.

In this paper, we present MyriXen, a framework in which Virtual Machines efficiently share network I/O devices bypassing overheads imposed by the VMM or the driver domains. MyriXen permits VMs to optimally exchange messages with the network via a high performance NIC, leaving security and isolation issues to the Virtualization layers. Smart Myri-10G NICs provide hardware abstractions that facilitate the integration of the MX semantics in the Xen split driver model. With MyriXen, multiple VMs exchange messages using the MX message passing protocol over Myri-10G interfaces as if the NIC was assigned solely to them. We believe that MyriXen can integrate message passing based applications in clusters of VMs provided by Cloud Computing infrastructures with near-native performance.

Keywords

Virtualization Xen Myrinet Ethernet MyriXen Myri-10g Linux I/O DMA Virtualized I/O Message Passing MX 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Anastassios Nanos
    • 1
  • Nectarios Koziris
    • 1
  1. 1.School of Electrical and Computer Engineering, Computing Systems LaboratoryNational Technical University of AthensZografouGreece

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