Implementation and Evaluation of Shared-Memory Communication and Synchronization Operations in MPICH2 using the Nemesis Communication Subsystem

Darius Buntinas; Guillaume Mercier; William Gropp

Implementation and Evaluation of Shared-Memory Communication and Synchronization Operations in MPICH2 using the Nemesis Communication Subsystem

Darius Buntinas ¹ Guillaume Mercier ^{2, 3, 4} William Gropp ¹

1 MCS - Mathematics and Computer Science Division [ANL]

2 LaBRI - Laboratoire Bordelais de Recherche en Informatique

3 RUNTIME - Efficient runtime systems for parallel architectures

Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, CNRS - Centre National de la Recherche Scientifique : UMR5800

4 ENSEIRB - Ecole Nationale Supérieure d'Electronique, Informatique et Radiocommunications de Bordeaux

Abstract : This paper presents the implementation of MPICH2 over the Nemesis communication subsystem and the evaluation of its shared-memory performance. We describe design issues as well as some of the optimization techniques we employed. We conducted a performance evaluation over shared memory using microbenchmarks. The evaluation shows that MPICH2 Nemesis has very low communication overhead, making it suitable for smaller-grained applications.

Keywords : MPI shared memory parallel programming

Document type :

Journal articles

Domain :

Computer Science [cs] / Distributed, Parallel, and Cluster Computing [cs.DC]

Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00344327
Contributor : Guillaume Mercier <>
Submitted on : Thursday, December 4, 2008 - 2:45:09 PM
Last modification on : Wednesday, August 14, 2019 - 1:10:33 AM
Long-term archiving on: Thursday, October 11, 2012 - 12:32:12 PM

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Implementation and Evaluation of Shared-Memory Communication and Synchronization Operations in MPICH2 using the Nemesis Communication Subsystem

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