On optimizing collective communication

On optimizing collective communication

We discuss issues related to the high-performance implementation of collective communications operations on distributed-memory computer architectures. Using a combination of known techniques (many of which were first proposed in the 1980s and early 1990s) along with careful exploitation of communica...

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Bibliographische Detailangaben
Hauptverfasser: Chan, E.W., Heimlich, M.F., Purkayastha, A., van de Geijn, R.A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Computational efficiency
Computational modeling
Computer architecture
Concurrent computing
Costs
Distributed computing
High performance computing
Network topology
Protocols
Routing
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Beschreibung
Zusammenfassung:We discuss issues related to the high-performance implementation of collective communications operations on distributed-memory computer architectures. Using a combination of known techniques (many of which were first proposed in the 1980s and early 1990s) along with careful exploitation of communication modes supported by MPI, we have developed implementations that have improved performance in most situations compared to those currently supported by public domain implementations of MPI such as MPICH. Performance results from a large Intel Pentium 4 (R) processor cluster are included.
ISSN:1552-5244
2168-9253
DOI:10.1109/CLUSTR.2004.1392612