[openib-general] uverbs and OSU MPI/MPI in general?

[Dhabaleswar Panda]

Peter, 

>     Peter> Hi All, How does gen2's uverbs compare to VAPI? Is it meant
>     Peter> to be the same API? Should OSU's MPI run on top of this or
>     Peter> is there some other MPI implementation that will be able to
>     Peter> run 'natively' over IB?
> 
> The basic functionality is the same but the API is different.  For
> example completion events are handled in a different way that allows
> better performance.
> 
> None of the current MPI implementations that use IB will run
> unmodified, but everyone (including OSU) is porting to the new API.

We have already started working on porting OSU MPI to the Gen2 stack.

We plan to release MVAPICH 0.9.5 (on VAPI stack) during the next 1-2
weeks.  After that we will make a subsequent release of 0.9.5 on the
OpenIB Gen2 stack.

Hope this helps. 

Thanks, 

DK

>  - R.
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