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

[Peter Buckingham]

Dhabaleswar Panda wrote:
> 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.

excellent! thanks for the info.

peter