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A uGNI-Based MPICH2 Nemesis Network Module for the Cray XE

  • Howard Pritchard
  • Igor Gorodetsky
  • Darius Buntinas
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6960)

Abstract

Recent versions of MPICH2 have featured Nemesis – a scalable, high-performance, multi-network communication subsystem. Nemesis provides a framework for developing Network Modules (Netmods) for interfacing the Nemesis subsystem to various high speed network protocols. Cray has developed a user-level Generic Network Interface (uGNI) for interfacing MPI implementations to the internal high speed network of Cray XE and follow-on computer systems. This paper describes the design of a uGNI Netmod for the MPICH2 nemesis subsystem. MPICH2 performance data on the Cray XE are presented.

Keywords

Network Module Message Length Defense Advance Research Project Agency Large Message Application Message 
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 2011

Authors and Affiliations

  • Howard Pritchard
    • 1
  • Igor Gorodetsky
    • 1
  • Darius Buntinas
    • 2
  1. 1.Cray Inc.USA
  2. 2.Argonne National LaboratoryUSA

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