Design and Evaluation of Nemesis: a Scalable, Low-Latency, Message-Passing Communication Subsystem

Darius Buntinas 1 Guillaume Mercier 1 William Gropp 1
1 MCS - Mathematics and Computer Science Division [ANL]
Abstract : This paper presents a new low-level communication subsystem called Nemesis. Nemesis has been designed and implemented to be scalable and efficient both in the intranode communication context using shared-memory and in the internode communication case using high-performance networks and is natively multimethod-enabled. Nemesis has been integrated in MPICH2 as a CH3 channel and delivers better performance than other dedicated communication channels in MPICH2. Furthermore, the resulting MPICH2 architecture outperforms other MPI implementations in point-to-point benchmarks.
keyword : MPI parallel programming
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Conference papers
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https://hal.archives-ouvertes.fr/hal-00344350
Contributor : Guillaume Mercier <>
Submitted on : Thursday, December 4, 2008 - 3:19:15 PM
Last modification on : Tuesday, August 13, 2019 - 3:20:09 PM
Long-term archiving on: Thursday, October 11, 2012 - 12:32:31 PM

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Darius Buntinas, Guillaume Mercier, William Gropp. Design and Evaluation of Nemesis: a Scalable, Low-Latency, Message-Passing Communication Subsystem. Sixth IEEE International Symposium on Cluster Computing and the Grid (CCGRID'06), May 2006, Singapour, Singapore. pp.521-530, ⟨10.1109/CCGRID.2006.31⟩. ⟨hal-00344350⟩

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