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Richard Graham wrote:
Re: [OMPI devel] RFC: sm Latency
In the recvi function, do you first try to
match off the unexpected list before you try and match data in the
fifo’s?
Within the proposed approach, a variety of things are possible.
Within the specific code I've put back so far, I happen to check the
unexpected list. If it has something on it, the "immediate" receive
reverts to the traditional code path. If the unexpected list is empty,
I proceed on to the FIFO. Again, that's just how the code works that
I've put back so far to the workspace mentioned in the RFC.
You can let me know why you ask and what behavior you recommend.
Again, to be quite honest, a lot of my interest here is motivated by
(ping-pong style) benchmarks. I feel dirty just admitting that, but
then I remind myself of all the reports I see of people getting really
bad latencies using OMPI.
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