[mpich-discuss] Controlling MPICH busy-wait behavior

[Mccall, Kurt E. (MSFC-EV41)]

Is there a means to tell MPICH to yield to other processes when performing a busy-wait for incoming messages?   The page below distinguishes between "aggressive busy-wait" and "degraded busy-wait", where the latter is what I'd like to try.

https://stackoverflow.com/questions/14560714/probe-seems-to-consume-the-cpu/14562840#14562840


Thanks,
Kurt

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