/usr/lib/R/site-library/snow/RMPISNOWprofile is in r-cran-snow 1:0.4.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | library(Rmpi)
library(snow)
.MPIrun <- function() 
{
    if (mpi.comm.rank(0) > 0){
        sys.load.image(".RData",TRUE)
        .First.sys()
	sink(file="/dev/null")
        slaveLoop(makeMPImaster())
        mpi.quit()
    }
    else {
        makeMPIcluster()
        .Last <<- function(){
            cl <- getMPIcluster()
            if (! is.null(cl))
                stopCluster(cl)
            mpi.quit()
        }
    }
}
.MPIrun()
 |