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Published in:
2009 | OriginalPaper | Chapter
Hiding Communication Latency with Non-SPMD, Graph-Based Execution
Authors : Jacob Sorensen, Scott B. Baden
Published in: Computational Science – ICCS 2009
Publisher: Springer Berlin Heidelberg
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Reformulating an algorithm to mask communication delays is crucial in maintaining scalability, but traditional solutions embed the overlap strategy into the application. We present an alternative approach based on dataflow, that factors the overlap strategy out of the application. Using this approach we are able to reduce communication delays, meeting and in many cases exceeding performance obtained with traditional hand coded applications.