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Data Transfers between Processes in an SMP System: Performance Study and Application to MPI

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3 Author(s)
Buntinas, D. ; Div. of Math. & Comput. Sci., Argonne Nat. Lab., IL ; Mercier, G. ; Gropp, W.

This paper focuses on the transfer of large data in SMP systems. Achieving good performance for intranode communication is critical for developing an efficient communication system, especially in the context of SMP clusters. We evaluate the performance of five transfer mechanisms: shared-memory buffers, message queues, the Ptrace system call, kernel module-based copy, and a high-speed network. We evaluate each mechanism based on latency, bandwidth, its impact on application cache usage, and its suitability to support MPI two-sided and one-sided messages

Published in:

Parallel Processing, 2006. ICPP 2006. International Conference on

Date of Conference:

14-18 Aug. 2006