# NOT RUN {
spmd.code <- "
suppressMessages(library(pbdMPI))
suppressMessages(library(pbdBASE))
init.grid()
### Set desc.
dim <- c(6L, 5L)
bldim <- c(3L, 3L)
ldim <- base.numroc(dim = dim, bldim = bldim)
comm.print(ldim)
finalize()
"
pbdMPI::execmpi(spmd.code = spmd.code, nranks = 2L)
# }
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