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19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 9
An Evaluation of Two Implementation Strategies for Optimizing One-Sided Atomic Reduction
Denver, Colorado
April 04-April 08
ISBN: 0-7695-2312-9
Jarek Nieplocha, Pacific Northwest National Laboratory
Vinod Tipparaju, Pacific Northwest National Laboratory
Edoardo Apra, Pacific Northwest National Laboratory
One-sided atomic reduction, also known as the accumulate operation, combines atomically a content of the local buffer with data at remote memory location. This operation has been included in the MPI-2 standard a, MPI_Accumulate. The current paper discusses two strategies for implementing one-sided atomic reduction called owner-computes and callercomputes. Performance of these two schemes has been investigated on the HP Alphaserver SC45 and HP zx-2600 clusters both equipped with the Quadrics Elan-3 network.
Citation:
Jarek Nieplocha, Vinod Tipparaju, Edoardo Apra, "An Evaluation of Two Implementation Strategies for Optimizing One-Sided Atomic Reduction," ipdps, vol. 10, pp.215b, 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 9, 2005
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