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 as well as application benchmarks. The evaluation shows that MPICH2 Nemesis has very low communication overhead, making it suitable for smaller-grained applications.
This work was supported by the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Advanced Scientific Computing Research, Office of Science, U.S. Department of Energy, under Contract W-31-109-ENG-38, and by a grant of computing time from the Ohio Supercomputer Center.
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Buntinas, D., Mercier, G., Gropp, W. (2006). Implementation and Shared-Memory Evaluation of MPICH2 over the Nemesis Communication Subsystem. In: Mohr, B., Träff, J.L., Worringen, J., Dongarra, J. (eds) Recent Advances in Parallel Virtual Machine and Message Passing Interface. EuroPVM/MPI 2006. Lecture Notes in Computer Science, vol 4192. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11846802_19
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DOI: https://doi.org/10.1007/11846802_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-39110-4
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