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Published in:
2005 | OriginalPaper | Chapter
Mobile Pipelines: Parallelizing Left-Looking Algorithms Using Navigational Programming
Authors : Lei Pan, Ming Kin Lai, Michael B. Dillencourt, Lubomir F. Bic
Published in: High Performance Computing – HiPC 2005
Publisher: Springer Berlin Heidelberg
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We consider the class of “left-looking” sequential matrix algorithms: consumer-driven algorithms that are characterized by “lazy” propagation of data. Left-looking algorithms are difficult to parallelize using the message-passing or distributed shared memory models because they only possess pipeline parallelism. We show that these algorithms can be directly parallelized using mobile pipelines provided by the Navigational Programming methodology. We present performance data demonstrating the effectiveness of our approach.