[ewg] Status of SDP? (and ib_sdp patch for Linux-3.4.x)

[Hefty, Sean]

> What's makes SDP so useful and why is will be sorely missed is that it does
> not require users to refactor existing TCP socket code, or even be in
> possession of the source code for that matter.   Simply preloading libsdp is
> all need to do to convert that old, cranky tcp program to run (almost) native
> over InfiniBand.

rsockets also comes with a preload library that allows TCP apps to run over RDMA devices.  It has been tested with OSU and Intel MPI binaries.  (I, personally, do not have access to Intel MPI source code.)  The major difficulty is supporting applications which call fork.

- Sean