## Not run:
# ### Under command mode, run the demo with 4 processors by
# ### (Use Rscript.exe for windows system)
# mpiexec -np 4 Rscript -e "demo(sample_stat,'pbdDEMO',ask=F,echo=F)"
# mpiexec -np 4 Rscript -e "demo(binning,'pbdDEMO',ask=F,echo=F)"
# mpiexec -np 4 Rscript -e "demo(quantile,'pbdDEMO',ask=F,echo=F)"
# mpiexec -np 4 Rscript -e "demo(ols,'pbdDEMO',ask=F,echo=F)"
# mpiexec -np 4 Rscript -e "demo(gbd2dmat,'pbdDEMO',ask=F,echo=F)"
# mpiexec -np 4 Rscript -e "demo(balance,'pbdDEMO',ask=F,echo=F)"
# ## End(Not run)
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