[R] Parallel programming with R

[Isabel]

Hello,

I am trying to do some parallel programming with R. I programmed with C 
and MPI before. I heard that there is a package called Rmpi and one called 
snow. What is the difference? I know the administrator installed snow in 
our system so I wonder if this mean there is Rmpi in it. I believe the 
Rmpi will have similar functions than MPI that is why I am specially 
interested in it.

Thanks for your help
Isabel