SMPI:
* Implement some more MPI primitives:
- MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce
+ MPI_Waitany, MPI_Waitall, MPI_Reduce, MPI_Allreduce, MPI_Sendrecv
* Add support for optimized collectives (Bcast is now binomial by default)
* Port smpirun and smpicc to OS X