Performing a global barrier operation in a parallel computer
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United States of America Patent
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Dec 9, 2014
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app pub date -
Aug 10, 2011
filing date -
Aug 10, 2011
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Abstract
Executing computing tasks on a parallel computer that includes compute nodes coupled for data communications, where each compute node executes tasks, with one task on each compute node designated as a master task, including: for each task on each compute node until all master tasks have joined a global barrier: determining whether the task is a master task; if the task is not a master task, joining a single local barrier; if the task is a master task, joining the global barrier and the single local barrier only after all other tasks on the compute node have joined the single local barrier.
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