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### SHELL> mpiexec -np 4 Rscript --vanilla [...].r
### Initial MPI.
suppressMessages(library(pbdDEMO, quietly = TRUE))
init()
### Generate balanced fake data.
comm.set.seed(1234, diff = TRUE)
N <- 100 # Pretend N is large.
x.gbd <- rnorm(N) # Distributed data.
### Run.
ret.gbd <- mpi.bin(x.gbd)
### Output.
comm.print(ret.gbd)
finalize()
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