[openib-general] RFC MPI and app. requirements of OpenIB

[amith rajith mamidala]

> An alternative is to provide UD and multicast/broadcast support in the CMA.  I
> know that the Intel MPI runs over DAPL, which does not provide multicast
> support.  Can MPI operate with unreliable multicast support?  Does MPI plan on
> using IB multicast?

Yes, the MPI can operate with unreliable multicast support.
MVAPICH-0.9.6 has this broadcast support over IB multicast. As Hal
suggested earlier, application processes interact with SA to create/join
multicast groups.

Thanks,
Amith
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