[QST]Is the Key Difference Between mbarrier and barrier Their Handling of Producer-Consumer Count?

[ziyuhuang123]

Barrier is used for scenarios where the number of producers and consumers is the same, while mbarrier is used when the numbers differ.

Is this conclusion correct? Is this the fundamental difference and design intent between mbarrier and barrier?

[github-actions]

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[hwu36]

@Junkai-Wu

[Junkai-Wu]

This conclusion is incorrect. Both barrier and mbarrier are based on arrive-wait mechanism. This mechanism doesn't necessary require the number of producer and consumer is the same.

mbarrier is more flexible and powerful than barrier. mbarrier has two modes, one is arrive wait which is similar as barrier. The other is transaction wait which barrier doesn't support.