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. 2015 Feb 13;6:42. doi: 10.3389/fphys.2015.00042

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Copyright © 2015 Sumiyoshi, Hirata, Hiroi and Funahashi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Two-way and four-way overlap streaming of data transfer. In an asynchronous transfer scheme, the data is split into multiple streams which are executed in parallel. (A) Shows an example of sequential execution, which has no overlap. (B) Shows an example of two-way overlap, which executes two streams: stream 2 is able to begin its computations while stream 1 is still transferring its results. In four-way overlap, the simulation task is split into four parts (C). This results in an increase to three overlaps, compared to only one overlap in two-way overlap.