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23 lines
959 B
TeX
23 lines
959 B
TeX
%\pagebreak
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\section{\kcode{taskgroup} Construct}
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\label{sec:taskgroup}
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\index{constructs!taskgroup@\kcode{taskgroup}}
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\index{taskgroup construct@\kcode{taskgroup} construct}
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In this example, tasks are grouped and synchronized using the \kcode{taskgroup}
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construct.
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Initially, one task (the task executing the \ucode{start_background_work()}
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routine) is created in the \kcode{parallel} region, and later a parallel tree traversal
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is started (the task executing the root of the recursive \ucode{compute_tree()}
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calls). While synchronizing tasks at the end of each tree traversal, using the
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\kcode{taskgroup} construct ensures that the formerly started background task
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does not participate in the synchronization and is left free to execute in parallel.
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This is opposed to the behavior of the \kcode{taskwait} construct, which would
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include the background tasks in the synchronization.
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\cexample[4.0]{taskgroup}{1}
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\ffreeexample[4.0]{taskgroup}{1}
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