Hello,

George Bosilca, on jeu. 20 juil. 2017 19:05:34 -0500, wrote:
> Can you reproduce the same behavior after the first batch of messages ?

Yes, putting a loop around the whole series of communications, event
with a 1-second pause in between, gets the same behavior repeated.

> Assuming the times showed on the left of your messages are correct, the first
> MPI seems to deliver the entire set of messages significantly faster than the
> second.

The second log was with mpich2.

Samuel
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